Fresh Alloy reports 290 hp out of VQ35
07-03-2002, 07:57 PM
#41
Senior Member
Join Date: Nov 2000
Posts: 1,985
Re: Official 350Z specs and Gear Ratio
Originally posted by Amazing2
2003 Maxima
HP: 255 @ 5,800 RPM
TQ: 246 @ 4,400 RPM
Comp. ratio: 10.3
2003 350Z
HP: 287 @ 6,200 RPM
TQ: 274 @ 4,800 RPM
Comp. ratio: 10.3
2003 Maxima
HP: 255 @ 5,800 RPM
TQ: 246 @ 4,400 RPM
Comp. ratio: 10.3
2003 350Z
HP: 287 @ 6,200 RPM
TQ: 274 @ 4,800 RPM
Comp. ratio: 10.3
07-03-2002, 08:54 PM
#42
I have been wondering if the cams on the 350Z would be different. DAVEB claims they are the same part numbers which means they probably have the same specs. Everyone of us that has done dyno testing on the VQ35 has seen what a huge difference the CAIs make over the stock airbox. I think Emax got his to peak out at 6200+ rpm. So we've already proved that the VQ35's we have are basically starving for air. I believe we could actually meet or exceed the hp output of the 350Z by way of a custom upper intake plenum. The only thing I think we could stand to gain from an ECU upgrade would perhaps be more optimised ignition timing and intake cam timing. But thats pure speculation and I don't think any of us have the resources to prove it.
I havent announced this to anyone but Ethan, but I have had a project on the back burner for a couple of months now. The problem is I keep running into other projects to do in the mean time such as the nitrous install I finally finished. Anyways, I have been looking around to gather up parts to fabricate a custom intake manifold for the VQ35DE. Initially my goal is to ring out as much hp as I possibly can. That will be prototype #1. If I can do this and be successful at it I may look into making a SHO or Honda VTEC style intake manifold so we could still retain our stump pulling torque on the low end.
Now if I manage to pull this off I would like to know what kind of interest is out there for a product of this nature. It would be very easy to install but probably frowned upon by your service department. The only other drawback I can see would be the cost. I guesstimate it could be anywhere from $300 to $600. Please note that I am not making any promises at all, especially on hp or cost. Obviously it would have to turn out relativly good on both points to make it worth my time and or your money.
So thats about it. I have looked over this thing time and time again and even taken the entire manifold apart a couple of times to study it. I really would love to get a set of cams made for this engine but the labor involved for a VQ cam swap could get pretty intense. I belive the plenum could very well turn out to be the best bolt on possible.
I havent announced this to anyone but Ethan, but I have had a project on the back burner for a couple of months now. The problem is I keep running into other projects to do in the mean time such as the nitrous install I finally finished. Anyways, I have been looking around to gather up parts to fabricate a custom intake manifold for the VQ35DE. Initially my goal is to ring out as much hp as I possibly can. That will be prototype #1. If I can do this and be successful at it I may look into making a SHO or Honda VTEC style intake manifold so we could still retain our stump pulling torque on the low end.
Now if I manage to pull this off I would like to know what kind of interest is out there for a product of this nature. It would be very easy to install but probably frowned upon by your service department. The only other drawback I can see would be the cost. I guesstimate it could be anywhere from $300 to $600. Please note that I am not making any promises at all, especially on hp or cost. Obviously it would have to turn out relativly good on both points to make it worth my time and or your money.
So thats about it. I have looked over this thing time and time again and even taken the entire manifold apart a couple of times to study it. I really would love to get a set of cams made for this engine but the labor involved for a VQ cam swap could get pretty intense. I belive the plenum could very well turn out to be the best bolt on possible.
07-03-2002, 09:07 PM
#43
Originally posted by SR20DEN
I have been wondering if the cams on the 350Z would be different. DAVEB claims they are the same part numbers which means they probably have the same specs. Everyone of us that has done dyno testing on the VQ35 has seen what a huge difference the CAIs make over the stock airbox. I think Emax got his to peak out at 6200+ rpm. So we've already proved that the VQ35's we have are basically starving for air. I believe we could actually meet or exceed the hp output of the 350Z by way of a custom upper intake plenum. The only thing I think we could stand to gain from an ECU upgrade would perhaps be more optimised ignition timing and intake cam timing. But thats pure speculation and I don't think any of us have the resources to prove it.
I havent announced this to anyone but Ethan, but I have had a project on the back burner for a couple of months now. The problem is I keep running into other projects to do in the mean time such as the nitrous install I finally finished. Anyways, I have been looking around to gather up parts to fabricate a custom intake manifold for the VQ35DE. Initially my goal is to ring out as much hp as I possibly can. That will be prototype #1. If I can do this and be successful at it I may look into making a SHO or Honda VTEC style intake manifold so we could still retain our stump pulling torque on the low end.
Now if I manage to pull this off I would like to know what kind of interest is out there for a product of this nature. It would be very easy to install but probably frowned upon by your service department. The only other drawback I can see would be the cost. I guesstimate it could be anywhere from $300 to $600. Please note that I am not making any promises at all, especially on hp or cost. Obviously it would have to turn out relativly good on both points to make it worth my time and or your money.
So thats about it. I have looked over this thing time and time again and even taken the entire manifold apart a couple of times to study it. I really would love to get a set of cams made for this engine but the labor involved for a VQ cam swap could get pretty intense. I belive the plenum could very well turn out to be the best bolt on possible.
I have been wondering if the cams on the 350Z would be different. DAVEB claims they are the same part numbers which means they probably have the same specs. Everyone of us that has done dyno testing on the VQ35 has seen what a huge difference the CAIs make over the stock airbox. I think Emax got his to peak out at 6200+ rpm. So we've already proved that the VQ35's we have are basically starving for air. I believe we could actually meet or exceed the hp output of the 350Z by way of a custom upper intake plenum. The only thing I think we could stand to gain from an ECU upgrade would perhaps be more optimised ignition timing and intake cam timing. But thats pure speculation and I don't think any of us have the resources to prove it.
I havent announced this to anyone but Ethan, but I have had a project on the back burner for a couple of months now. The problem is I keep running into other projects to do in the mean time such as the nitrous install I finally finished. Anyways, I have been looking around to gather up parts to fabricate a custom intake manifold for the VQ35DE. Initially my goal is to ring out as much hp as I possibly can. That will be prototype #1. If I can do this and be successful at it I may look into making a SHO or Honda VTEC style intake manifold so we could still retain our stump pulling torque on the low end.
Now if I manage to pull this off I would like to know what kind of interest is out there for a product of this nature. It would be very easy to install but probably frowned upon by your service department. The only other drawback I can see would be the cost. I guesstimate it could be anywhere from $300 to $600. Please note that I am not making any promises at all, especially on hp or cost. Obviously it would have to turn out relativly good on both points to make it worth my time and or your money.
So thats about it. I have looked over this thing time and time again and even taken the entire manifold apart a couple of times to study it. I really would love to get a set of cams made for this engine but the labor involved for a VQ cam swap could get pretty intense. I belive the plenum could very well turn out to be the best bolt on possible.
You know what I think, make it! 
07-03-2002, 09:18 PM
#44
http://www.rag*******/public/350Z.wmv
quote from edmund's review
"including redesigned intake ports, increased valve lift and a 10.3:1 compression ratio. These changes allow the engine to make 287 horsepower at 6,200 rpm and 274 pound-feet of torque at 4,800 rpm."
http://www.edmunds.com/reviews/roadt...6/article.html
quote from edmund's review
"including redesigned intake ports, increased valve lift and a 10.3:1 compression ratio. These changes allow the engine to make 287 horsepower at 6,200 rpm and 274 pound-feet of torque at 4,800 rpm."
http://www.edmunds.com/reviews/roadt...6/article.html
07-03-2002, 09:32 PM
#45
Originally posted by SR20DEN
I have been wondering if the cams on the 350Z would be different. DAVEB claims they are the same part numbers which means they probably have the same specs. Everyone of us that has done dyno testing on the VQ35 has seen what a huge difference the CAIs make over the stock airbox. I think Emax got his to peak out at 6200+ rpm. So we've already proved that the VQ35's we have are basically starving for air. I believe we could actually meet or exceed the hp output of the 350Z by way of a custom upper intake plenum. The only thing I think we could stand to gain from an ECU upgrade would perhaps be more optimised ignition timing and intake cam timing. But thats pure speculation and I don't think any of us have the resources to prove it.
I havent announced this to anyone but Ethan, but I have had a project on the back burner for a couple of months now. The problem is I keep running into other projects to do in the mean time such as the nitrous install I finally finished. Anyways, I have been looking around to gather up parts to fabricate a custom intake manifold for the VQ35DE. Initially my goal is to ring out as much hp as I possibly can. That will be prototype #1. If I can do this and be successful at it I may look into making a SHO or Honda VTEC style intake manifold so we could still retain our stump pulling torque on the low end.
Now if I manage to pull this off I would like to know what kind of interest is out there for a product of this nature. It would be very easy to install but probably frowned upon by your service department. The only other drawback I can see would be the cost. I guesstimate it could be anywhere from $300 to $600. Please note that I am not making any promises at all, especially on hp or cost. Obviously it would have to turn out relativly good on both points to make it worth my time and or your money.
So thats about it. I have looked over this thing time and time again and even taken the entire manifold apart a couple of times to study it. I really would love to get a set of cams made for this engine but the labor involved for a VQ cam swap could get pretty intense. I belive the plenum could very well turn out to be the best bolt on possible.
I have been wondering if the cams on the 350Z would be different. DAVEB claims they are the same part numbers which means they probably have the same specs. Everyone of us that has done dyno testing on the VQ35 has seen what a huge difference the CAIs make over the stock airbox. I think Emax got his to peak out at 6200+ rpm. So we've already proved that the VQ35's we have are basically starving for air. I believe we could actually meet or exceed the hp output of the 350Z by way of a custom upper intake plenum. The only thing I think we could stand to gain from an ECU upgrade would perhaps be more optimised ignition timing and intake cam timing. But thats pure speculation and I don't think any of us have the resources to prove it.
I havent announced this to anyone but Ethan, but I have had a project on the back burner for a couple of months now. The problem is I keep running into other projects to do in the mean time such as the nitrous install I finally finished. Anyways, I have been looking around to gather up parts to fabricate a custom intake manifold for the VQ35DE. Initially my goal is to ring out as much hp as I possibly can. That will be prototype #1. If I can do this and be successful at it I may look into making a SHO or Honda VTEC style intake manifold so we could still retain our stump pulling torque on the low end.
Now if I manage to pull this off I would like to know what kind of interest is out there for a product of this nature. It would be very easy to install but probably frowned upon by your service department. The only other drawback I can see would be the cost. I guesstimate it could be anywhere from $300 to $600. Please note that I am not making any promises at all, especially on hp or cost. Obviously it would have to turn out relativly good on both points to make it worth my time and or your money.
So thats about it. I have looked over this thing time and time again and even taken the entire manifold apart a couple of times to study it. I really would love to get a set of cams made for this engine but the labor involved for a VQ cam swap could get pretty intense. I belive the plenum could very well turn out to be the best bolt on possible.
07-03-2002, 10:02 PM
#46
Originally posted by emax95
If SR20DET is correct and our ECU is infact retarding the timing by 5 degrees this is where the 350Z could be shining. I am convinced our ECU's are terrible, at about 5800 RPM the motor runs extremly rich. If the timing was bumped up 5 degrees and the air/fuel mixture was leaned out we would have a lot more top end probably!
I wonder if the 350Z has a larger throttle body we could use on the max?
If SR20DET is correct and our ECU is infact retarding the timing by 5 degrees this is where the 350Z could be shining. I am convinced our ECU's are terrible, at about 5800 RPM the motor runs extremly rich. If the timing was bumped up 5 degrees and the air/fuel mixture was leaned out we would have a lot more top end probably!
I wonder if the 350Z has a larger throttle body we could use on the max?
07-03-2002, 11:00 PM
#47
Senior Member
Join Date: Dec 2000
Posts: 2,145
The injectors on the 350Z make a big difference
they aren't the same ones as the 2k2 max has, so is there a way to put the 350Z injectors on a 2k2 max?
they aren't the same ones as the 2k2 max has, so is there a way to put the 350Z injectors on a 2k2 max?
07-04-2002, 06:11 AM
#49
Senior Member
Thread Starter
Join Date: Nov 2001
Posts: 350
Yeah, as long as the injectors are providing enough fuel to keep the engine stoichiometric, larger injectors won't do much. When you're blowing or spraying, you are putting more oxygen into the cylinder which can make the engine run lean if your injectors aren't up to the task.
Originally posted by kloogy
How many pounds are the injectors on the Max vs the 350... Injectors wont make a huge diffrence unless you are SAUCED, or BLOWN. At least in my V8 experience.
How many pounds are the injectors on the Max vs the 350... Injectors wont make a huge diffrence unless you are SAUCED, or BLOWN. At least in my V8 experience.
07-04-2002, 06:22 AM
#50
Senior Member
Thread Starter
Join Date: Nov 2001
Posts: 350
Re: Re: Official 350Z specs and Gear Ratio
Its doubtful the extra horses are due to RPM because the HP peak in the Z is at 6200 rpm, which is less than the current redline on the Maxima.
I'm certainly no expert, but the shifted power peak would seem to indicate that they've reduced the pumping loses, i.e.: better intake and exhaust. This would allow the VQ35 to breather better at the higher RPMS. We've all seen how the curve on the Max VQ35 drops away after 5500 rpm.
Couple this choking with ECU restrictions and I think 30 hp is not out of the question.
This has been a really interesting thread. I would easily pop $1000 to get an extra 30 horses.
I'm certainly no expert, but the shifted power peak would seem to indicate that they've reduced the pumping loses, i.e.: better intake and exhaust. This would allow the VQ35 to breather better at the higher RPMS. We've all seen how the curve on the Max VQ35 drops away after 5500 rpm.
Couple this choking with ECU restrictions and I think 30 hp is not out of the question.
This has been a really interesting thread. I would easily pop $1000 to get an extra 30 horses.
Originally posted by theMax
Well one source of extra HP is a higher RPM. More RPM's more HP for a given engine. Bring on the ECU!
Well one source of extra HP is a higher RPM. More RPM's more HP for a given engine. Bring on the ECU!
07-04-2002, 07:57 AM
#51
Originally posted by 2001SE
The injectors on the 350Z make a big difference
they aren't the same ones as the 2k2 max has, so is there a way to put the 350Z injectors on a 2k2 max?
The injectors on the 350Z make a big difference
they aren't the same ones as the 2k2 max has, so is there a way to put the 350Z injectors on a 2k2 max?
I find LS1 injectors on Ebay all the time. http://cgi.ebay.com/ebaymotors/ws/eB...tem=1841017117
I would assume the injectors we have are meet or exceed the flow of these 26.4 pounders. But the only way we'll know for sure is if someone sends theirs off to get flowed. But at this point there isn't much reason to do that since no one is making 300hp in NA form.
Just found this also. http://cgi.ebay.com/ebaymotors/ws/eB...tem=1841460832
These are even the same color as what we have.
07-04-2002, 08:56 AM
#52
Originally posted by SR20DEN
I have been wondering if the cams on the 350Z would be different. DAVEB claims they are the same part numbers which means they probably have the same specs. Everyone of us that has done dyno testing on the VQ35 has seen what a huge difference the CAIs make over the stock airbox. I think Emax got his to peak out at 6200+ rpm. So we've already proved that the VQ35's we have are basically starving for air. I believe we could actually meet or exceed the hp output of the 350Z by way of a custom upper intake plenum. The only thing I think we could stand to gain from an ECU upgrade would perhaps be more optimised ignition timing and intake cam timing. But thats pure speculation and I don't think any of us have the resources to prove it.
I havent announced this to anyone but Ethan, but I have had a project on the back burner for a couple of months now. The problem is I keep running into other projects to do in the mean time such as the nitrous install I finally finished. Anyways, I have been looking around to gather up parts to fabricate a custom intake manifold for the VQ35DE. Initially my goal is to ring out as much hp as I possibly can. That will be prototype #1. If I can do this and be successful at it I may look into making a SHO or Honda VTEC style intake manifold so we could still retain our stump pulling torque on the low end.
Now if I manage to pull this off I would like to know what kind of interest is out there for a product of this nature. It would be very easy to install but probably frowned upon by your service department. The only other drawback I can see would be the cost. I guesstimate it could be anywhere from $300 to $600. Please note that I am not making any promises at all, especially on hp or cost. Obviously it would have to turn out relativly good on both points to make it worth my time and or your money.
So thats about it. I have looked over this thing time and time again and even taken the entire manifold apart a couple of times to study it. I really would love to get a set of cams made for this engine but the labor involved for a VQ cam swap could get pretty intense. I belive the plenum could very well turn out to be the best bolt on possible.
I have been wondering if the cams on the 350Z would be different. DAVEB claims they are the same part numbers which means they probably have the same specs. Everyone of us that has done dyno testing on the VQ35 has seen what a huge difference the CAIs make over the stock airbox. I think Emax got his to peak out at 6200+ rpm. So we've already proved that the VQ35's we have are basically starving for air. I believe we could actually meet or exceed the hp output of the 350Z by way of a custom upper intake plenum. The only thing I think we could stand to gain from an ECU upgrade would perhaps be more optimised ignition timing and intake cam timing. But thats pure speculation and I don't think any of us have the resources to prove it.
I havent announced this to anyone but Ethan, but I have had a project on the back burner for a couple of months now. The problem is I keep running into other projects to do in the mean time such as the nitrous install I finally finished. Anyways, I have been looking around to gather up parts to fabricate a custom intake manifold for the VQ35DE. Initially my goal is to ring out as much hp as I possibly can. That will be prototype #1. If I can do this and be successful at it I may look into making a SHO or Honda VTEC style intake manifold so we could still retain our stump pulling torque on the low end.
Now if I manage to pull this off I would like to know what kind of interest is out there for a product of this nature. It would be very easy to install but probably frowned upon by your service department. The only other drawback I can see would be the cost. I guesstimate it could be anywhere from $300 to $600. Please note that I am not making any promises at all, especially on hp or cost. Obviously it would have to turn out relativly good on both points to make it worth my time and or your money.
So thats about it. I have looked over this thing time and time again and even taken the entire manifold apart a couple of times to study it. I really would love to get a set of cams made for this engine but the labor involved for a VQ cam swap could get pretty intense. I belive the plenum could very well turn out to be the best bolt on possible.
07-04-2002, 09:07 AM
#53
Originally posted by BriGuyMax
Actually....I don't think that the manifold is the main restriction in the intake path right now. It's already a dual runner design. I'm assuming that when nissan put the extra .5 litres in the VQ...they didn't change the heads much...therefore a BIG topend restriction....I could be wrong.....who knows....
Actually....I don't think that the manifold is the main restriction in the intake path right now. It's already a dual runner design. I'm assuming that when nissan put the extra .5 litres in the VQ...they didn't change the heads much...therefore a BIG topend restriction....I could be wrong.....who knows....
07-04-2002, 09:16 AM
#54
Originally posted by SR20DEN
But it's not a true dual runner design. Take one apart and look at it for yourself. I guess we could call it a divided/undivided design. It's pretty weird and upon inspection you'll wonder how the thing works at all.
But it's not a true dual runner design. Take one apart and look at it for yourself. I guess we could call it a divided/undivided design. It's pretty weird and upon inspection you'll wonder how the thing works at all.
07-04-2002, 10:30 AM
#56
extra hp could come from the fact thatthe max and altima only have CVTC on the intake cam and the 350 has it on the intake and exhaust cam. as posted before the max/altima/350 have the same part# on the camshafts themselves. they gotta have a more aggressive ecu program and better intake and exhaust flow in the manifolds.
07-04-2002, 11:08 AM
#57
Member
Join Date: Jan 2002
Posts: 92
Re: Re: ....
And the Caddy weighs about 900 pounds more too.
Originally posted by RastaManMax
Yeah, but they're still geared for fogies anyways...
Yeah, but they're still geared for fogies anyways...
07-04-2002, 11:13 AM
#58
Member
Join Date: Jan 2002
Posts: 92
Which Pathfinder 3.5 has 210 HP? I thought it started out with 240 HP. Maybe you are thinking of the Xterra 3.3 supercharged engine.
Originally posted by Matthew
how can the pathfinder get 210hp and the Altima get 240hp and the Max 255hp G35 260hp 350Z 290hp all from the same engine?
how can the pathfinder get 210hp and the Altima get 240hp and the Max 255hp G35 260hp 350Z 290hp all from the same engine?
07-04-2002, 11:18 AM
#59
Senior Member
Join Date: Jan 2001
Posts: 3,628
Hey paul havent seen you around in a long time.
Matthew, pathfinder has 240, altima has 240, maxima has 255, (but altima/maxima dyno around the same hp), g35 probally a little work, and if you have been reading this thread, 350z has a few different parts here and there.
Matthew, pathfinder has 240, altima has 240, maxima has 255, (but altima/maxima dyno around the same hp), g35 probally a little work, and if you have been reading this thread, 350z has a few different parts here and there.
07-04-2002, 11:23 AM
#60
Member
Join Date: Jan 2002
Posts: 92
I lurk almost every day and post occasionally. Emax linked this thread on the Altima forum. This forum has some good info.
This forum has some good info.
Originally posted by AznWontonboy
Hey paul havent seen you around in a long time.
Matthew, pathfinder has 240, altima has 240, maxima has 255, (but altima/maxima dyno around the same hp), g35 probally a little work, and if you have been reading this thread, 350z has a few different parts here and there.
Hey paul havent seen you around in a long time.
Matthew, pathfinder has 240, altima has 240, maxima has 255, (but altima/maxima dyno around the same hp), g35 probally a little work, and if you have been reading this thread, 350z has a few different parts here and there.
07-04-2002, 11:24 AM
#61
Originally posted by DAREN
extra hp could come from the fact thatthe max and altima only have CVTC on the intake cam and the 350 has it on the intake and exhaust cam. as posted before the max/altima/350 have the same part# on the camshafts themselves. they gotta have a more aggressive ecu program and better intake and exhaust flow in the manifolds.
extra hp could come from the fact thatthe max and altima only have CVTC on the intake cam and the 350 has it on the intake and exhaust cam. as posted before the max/altima/350 have the same part# on the camshafts themselves. they gotta have a more aggressive ecu program and better intake and exhaust flow in the manifolds.
1.) The 350Z only has a varible intake cam just like all the other VQ35DEs.
2.) The CVTC on the intake cam actually controls both the intake and exhaust cams. You can see the exhaust cam is driven off the intake cam. It is possible that both cams change retard or advance timing but never change in separation angles.
07-04-2002, 11:28 AM
#62
Senior Member
Join Date: Jan 2002
Posts: 630
I don't understand how that photo proves anything...
07-04-2002, 11:33 AM
#63
Originally posted by 02MaximizedVQ
I don't understand how that photo proves anything...
I don't understand how that photo proves anything...
07-04-2002, 11:33 AM
#64
Newbie - Just Registered
Join Date: Jun 2002
Posts: 7
This is pretty funny
THe Alty 3.5 Owners like myself were trying to figure out how the Max has 15 more HP then us.. we could never conclude with the exception that you have a freer flowing exhaust.. and now you Max Owners are trying to figure out how the 350Z has 30+ more HP then you. Gotta love Nissan.. Keep at it Max boys.. I'm sure you'll figure something out, and us Alty's will take it to the bank as well We just recently had one of our 3.5 Alty's dynoed, 230 HP with 240 TQ 
and that was with an upgraded exhaust, lightened pulley and a pop charger.. That's impressive. Now god forbid we could unlock the secrets of our ECU..
Here's the link to the dyno
http://www.altimas.net/forum/showthr...highlight=dyno
We just recently had one of our 3.5 Alty's dynoed, 230 HP with 240 TQ and that was with an upgraded exhaust, lightened pulley and a pop charger.. That's impressive. Now god forbid we could unlock the secrets of our ECU.. Here's the link to the dyno
http://www.altimas.net/forum/showthr...highlight=dyno
07-04-2002, 11:36 AM
#65
Re: This is pretty funny
Originally posted by scottlny
THe Alty 3.5 Owners like myself were trying to figure out how the Max has 15 more HP then us.. we could never conclude with the exception that you have a freer flowing exhaust.. and now you Max Owners are trying to figure out how the 350Z has 30+ more HP then you. Gotta love Nissan.. Keep at it Max boys.. I'm sure you'll figure something out, and us Alty's will take it to the bank as well We just recently had one of our 3.5 Alty's dynoed, 230 HP with 240 TQ and that was with an upgraded exhaust, lightened pulley and a pop charger.. That's impressive. Now god forbid we could unlock the secrets of our ECU..
Here's the link to the dyno
http://www.altimas.net/forum/showthr...highlight=dyno
THe Alty 3.5 Owners like myself were trying to figure out how the Max has 15 more HP then us.. we could never conclude with the exception that you have a freer flowing exhaust.. and now you Max Owners are trying to figure out how the 350Z has 30+ more HP then you. Gotta love Nissan.. Keep at it Max boys.. I'm sure you'll figure something out, and us Alty's will take it to the bank as well
We just recently had one of our 3.5 Alty's dynoed, 230 HP with 240 TQ and that was with an upgraded exhaust, lightened pulley and a pop charger.. That's impressive. Now god forbid we could unlock the secrets of our ECU.. Here's the link to the dyno
http://www.altimas.net/forum/showthr...highlight=dyno
07-04-2002, 11:36 AM
#66
Senior Member
Join Date: Jan 2002
Posts: 630
I thought the Car and Driver article specifically said the camshafts were "hotter" compared to the Maxima. Meaning increased lift and/or duration. With that much more horespower its got to be.
Jesse
Jesse
07-04-2002, 12:03 PM
#67
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Join Date: Sep 2000
Location: City of the Fallen Angel, CA
Posts: 4,728
Re: Re: This is pretty funny
Originally posted by SR20DEN
I seriously doubt there is any diference other than our gimmick muffler.
I seriously doubt there is any diference other than our gimmick muffler.
PS: For those who don't know, the "gimmick" muffler SR20DEN is referring to is based on a Skyline design. It's also the muffler design used on the 350Z. Officially, Nissan refers to the design as "variable-capacity". It's won industry awards for its ability to provide both high performance and low noise. And it's precisely for those reasons why it's the only thing rear of the manifolds that's still stock on my exhaust system.
07-04-2002, 12:38 PM
#68
Re: Re: Re: This is pretty funny
Originally posted by y2kse
Yeah. It sure is a good thing Nissan decided not to use that POS muffler on the Skyline and the 350Z, huh?
PS: For those who don't know, the "gimmick" muffler SR20DEN is referring to is based on a Skyline design. It's also the muffler design used on the 350Z. Officially, Nissan refers to the design as "variable-capacity". It's won industry awards for its ability to provide both high performance and low noise. And it's precisely for those reasons why it's the only thing rear of the manifolds that's still stock on my exhaust system.
Yeah. It sure is a good thing Nissan decided not to use that POS muffler on the Skyline and the 350Z, huh?
PS: For those who don't know, the "gimmick" muffler SR20DEN is referring to is based on a Skyline design. It's also the muffler design used on the 350Z. Officially, Nissan refers to the design as "variable-capacity". It's won industry awards for its ability to provide both high performance and low noise. And it's precisely for those reasons why it's the only thing rear of the manifolds that's still stock on my exhaust system.
07-04-2002, 02:33 PM
#69
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Posts: 92
Re: Re: Re: Re: This is pretty funny
I would like to see the before and after dyno's overlayed. Has anyone done that?
Originally posted by emax95
The 5th gen muffler is a gimmick. 4th gens only pick up about a HP from it.
The 5th gen muffler is a gimmick. 4th gens only pick up about a HP from it.
07-04-2002, 02:54 PM
#70
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Re: Re: Re: Re: This is pretty funny
Originally posted by emax95
The 5th gen muffler is a gimmick. 4th gens only pick up about a HP from it.
The 5th gen muffler is a gimmick. 4th gens only pick up about a HP from it.
The point is, you can buy a higher performing muffler than the OEM 5th Gen muffler, but you can't buy a higher performing muffler that's as QUIET as a 5th Gen muffler. And by the time you add a Y-pipe and 2.5" piping, don't be surprised if a quiet muffler is precisely what you'll be looking for. BTW, that's why I sold my Magnaflow muffler and reinstalled my OEM rear section. Not having to listen to my exhaust system droooooooooooone all day long was worth a hp or two to me.
07-04-2002, 04:45 PM
#71
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Didn't you guys find the little switch under the dash? Position #1(factory) is good horsepower. #2 you feel the extra power, #3 wow time for some new tires. I bet the "Z" is factory set at position #3. It's easy to find just look under the steering wheel up into the dash. I bet Nissan thought no one would find it.
Happy July 4th.
Oh I thought it was April 1st.
Happy July 4th.
Oh I thought it was April 1st.
07-04-2002, 04:53 PM
#72
Originally posted by adaptabl
Didn't you guys find the little switch under the dash? Position #1(factory) is good horsepower. #2 you feel the extra power, #3 wow time for some new tires. I bet the "Z" is factory set at position #3. It's easy to find just look under the steering wheel up into the dash. I bet Nissan thought no one would find it.
Happy July 4th.
Oh I thought it was April 1st.
Didn't you guys find the little switch under the dash? Position #1(factory) is good horsepower. #2 you feel the extra power, #3 wow time for some new tires. I bet the "Z" is factory set at position #3. It's easy to find just look under the steering wheel up into the dash. I bet Nissan thought no one would find it.
Happy July 4th.
Oh I thought it was April 1st.
. I'll be demonstrating it again tomorrow at Rockingham if it doesn't rain. So 2 to 3 hp gain isn't a gimmick?
The answer to your question is yes, you can get the whole 5 extra hp out of a quiet exhaust. I beleive a guy in the org has already done it with a borla muffler.
07-04-2002, 05:34 PM
#73
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Originally posted by SR20DEN
So 2 to 3 hp gain isn't a gimmick?
So 2 to 3 hp gain isn't a gimmick?
The answer to your question is yes, you can get the whole 5 extra hp out of a quiet exhaust.
07-04-2002, 05:44 PM
#75
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Originally posted by SR20DEN
In due time
In due time
Tick . . . tock . . . tick . . . tock . . .
07-04-2002, 05:48 PM
#76
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Speed pro, Motec, TEC3, haltek offers their own optimizable ECU's.
Originally posted by CRMax
God, would I pay to have an optimized ECU.
God, would I pay to have an optimized ECU.
07-04-2002, 06:14 PM
#77
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Join Date: Aug 2000
Posts: 2,807
It has to be in the Intake manifold
For example let's look at the 2000+ VQ30DE vs 95-99 VQ30. Basically the only real difference is in the intake manifold and probably ECU tuning. Sure they have different exhaust manifolds but the difference isn't alot (Desertpearl convered to fed spec manifolds). With a different IM nissan was able to gain 20-30whp/10-18wtq over a factory 4th gen. Now with a different IM on the Z, it should see simular gains over 2k2 max/altimas. With a 6200rpm power peak the motor should rev to 7000rpm easy. Never the less the gain has to be 95% due to the different intake manifold. Hell a SR20DE high port IM would cause a shift in the high rpm torque simular to the 350Z's. Torque peak close to 5000rpm, power peak at 6400rpm.
07-04-2002, 06:24 PM
#78
Re: It has to be in the Intake manifold
Originally posted by Nismo87SE
For example let's look at the 2000+ VQ30DE vs 95-99 VQ30. Basically the only real difference is in the intake manifold and probably ECU tuning. Sure they have different exhaust manifolds but the difference isn't alot (Desertpearl convered to fed spec manifolds). With a different IM nissan was able to gain 20-30whp/10-18wtq over a factory 4th gen. Now with a different IM on the Z, it should see simular gains over 2k2 max/altimas. With a 6200rpm power peak the motor should rev to 7000rpm easy. Never the less the gain has to be 95% due to the different intake manifold. Hell a SR20DE high port IM would cause a shift in the high rpm torque simular to the 350Z's. Torque peak close to 5000rpm, power peak at 6400rpm.
For example let's look at the 2000+ VQ30DE vs 95-99 VQ30. Basically the only real difference is in the intake manifold and probably ECU tuning. Sure they have different exhaust manifolds but the difference isn't alot (Desertpearl convered to fed spec manifolds). With a different IM nissan was able to gain 20-30whp/10-18wtq over a factory 4th gen. Now with a different IM on the Z, it should see simular gains over 2k2 max/altimas. With a 6200rpm power peak the motor should rev to 7000rpm easy. Never the less the gain has to be 95% due to the different intake manifold. Hell a SR20DE high port IM would cause a shift in the high rpm torque simular to the 350Z's. Torque peak close to 5000rpm, power peak at 6400rpm.
07-04-2002, 07:11 PM
#79
you are correct. according to that picture there is only a VTC assembly on the intake cam. and like you said, this system would only allow you to advance/retard both cams. and not their relation to each other.
Originally posted by SR20DEN
According to this photo, the 350Zs VQ35DE has the same cam setup as ours. This can lead to one of two conclusions.
1.) The 350Z only has a varible intake cam just like all the other VQ35DEs.
2.) The CVTC on the intake cam actually controls both the intake and exhaust cams. You can see the exhaust cam is driven off the intake cam. It is possible that both cams change retard or advance timing but never change in separation angles.
According to this photo, the 350Zs VQ35DE has the same cam setup as ours. This can lead to one of two conclusions.
1.) The 350Z only has a varible intake cam just like all the other VQ35DEs.
2.) The CVTC on the intake cam actually controls both the intake and exhaust cams. You can see the exhaust cam is driven off the intake cam. It is possible that both cams change retard or advance timing but never change in separation angles.
07-04-2002, 07:25 PM
#80
Originally posted by y2kse
Hmmmmm. A Borla muffler that's as quiet as the stock muffler and produces a 5 hp gain. Now this I've got to see . . . AND hear!
Tick . . . tock . . . tick . . . tock . . .
Hmmmmm. A Borla muffler that's as quiet as the stock muffler and produces a 5 hp gain. Now this I've got to see . . . AND hear!
Tick . . . tock . . . tick . . . tock . . .