3.5 owners---Rejoice...Stillen Headers are out!
08-14-2003, 03:27 PM
#121
Originally posted by SR20DEN
The rear manifold is where the problem lies. I removed mine from the top after I removed the intake manifold and the rear cam cover. Even then it was a major PITA. It's probably easier to remove the precat from it first so you can get the heat shield off while the manifold is still on the car. The front manifold is a cake walk once you remove the radiator. This is about the same way Emax removed his (with the precats still on).
The rear manifold is where the problem lies. I removed mine from the top after I removed the intake manifold and the rear cam cover. Even then it was a major PITA. It's probably easier to remove the precat from it first so you can get the heat shield off while the manifold is still on the car. The front manifold is a cake walk once you remove the radiator. This is about the same way Emax removed his (with the precats still on).
No need to remove the cam cover either
I bet it made life much easier for you though 
08-14-2003, 03:36 PM
#122
![[maxi-overdose]'s Avatar](https://maxima.org/forums/customavatars/avatar1856_1.gif){kind=avatar}
Originally posted by clipse
Y2KevSE,Sent you a PM.
Do you need to run a Apexi AFC,Greddy E-Manage or any aftermarket fuel tuning/control device for the headers??? Will the stock ECU be able to handle the headers???
Y2KevSE,Sent you a PM.
Do you need to run a Apexi AFC,Greddy E-Manage or any aftermarket fuel tuning/control device for the headers??? Will the stock ECU be able to handle the headers???
I can answer this one..
the answer is "no~"....
S-AFC is used when your air/fuel ratio is...say 10:1 and you want to fine tune it to 12:1 to get more horses. You think your maxima will be super-rich after the headers installed?
08-14-2003, 05:01 PM
#123
Supporting Maxima.org Member
Join Date: May 2002
Location: Atlanta
Posts: 1,815
Originally posted by [maxi-overdose]
I can answer this one..
the answer is "no~"....
S-AFC is used when your air/fuel ratio is...say 10:1 and you want to fine tune it to 12:1 to get more horses. You think your maxima will be super-rich after the headers installed?
I can answer this one..
the answer is "no~"....
S-AFC is used when your air/fuel ratio is...say 10:1 and you want to fine tune it to 12:1 to get more horses. You think your maxima will be super-rich after the headers installed?
08-14-2003, 08:36 PM
#124
Junior Member
Join Date: May 2003
Posts: 17
Originally posted by maximaman777
Doesn't freeing up the flow on both sides do the opposite, leaner not richer? Meaning the with an intake, headers/Y-pipe and cat-back will lean out the mixture to something above 14:1. Wouldn't you want to bring it back down to the 12-14:1 from a higher ratio to get more horses?
Doesn't freeing up the flow on both sides do the opposite, leaner not richer? Meaning the with an intake, headers/Y-pipe and cat-back will lean out the mixture to something above 14:1. Wouldn't you want to bring it back down to the 12-14:1 from a higher ratio to get more horses?
08-14-2003, 08:44 PM
#125
Moderator GT-R
Join Date: Aug 2000
Posts: 19,780
Originally posted by maximaman777
Doesn't freeing up the flow on both sides do the opposite, leaner not richer? Meaning the with an intake, headers/Y-pipe and cat-back will lean out the mixture to something above 14:1. Wouldn't you want to bring it back down to the 12-14:1 from a higher ratio to get more horses?
Doesn't freeing up the flow on both sides do the opposite, leaner not richer? Meaning the with an intake, headers/Y-pipe and cat-back will lean out the mixture to something above 14:1. Wouldn't you want to bring it back down to the 12-14:1 from a higher ratio to get more horses?
08-14-2003, 08:55 PM
#126
Originally posted by maximaman777
Doesn't freeing up the flow on both sides do the opposite, leaner not richer? Meaning the with an intake, headers/Y-pipe and cat-back will lean out the mixture to something above 14:1. Wouldn't you want to bring it back down to the 12-14:1 from a higher ratio to get more horses?
Doesn't freeing up the flow on both sides do the opposite, leaner not richer? Meaning the with an intake, headers/Y-pipe and cat-back will lean out the mixture to something above 14:1. Wouldn't you want to bring it back down to the 12-14:1 from a higher ratio to get more horses?
Originally posted by bluemaxx
Yes. All else being equal, adding headers and exhaust will cause a lean condition. Why wouldn't the ECU compensate for this?
Yes. All else being equal, adding headers and exhaust will cause a lean condition. Why wouldn't the ECU compensate for this?
in addition...on a 11psi SC'ed maxima, you will have a 30whp gain by fine tuning with the S-AFC if you start with a super super rich AFR...less than 10:1 (out of the graph). It could get a bit leaner for more horsies but for safety reason, it stays on 11.5:1 to avoid high EGT. that maxima has a lot of room to tune....will an NA max ever have this much room to tune? what kinda gain are you expecting?I doubt it.
08-14-2003, 09:54 PM
#127
Originally posted by bluemaxx
Yes. All else being equal, adding headers and exhaust will cause a lean condition. Why wouldn't the ECU compensate for this?
Yes. All else being equal, adding headers and exhaust will cause a lean condition. Why wouldn't the ECU compensate for this?
I HIGHLY doubt that a pair of headers is going to cause a dangerously lean condition even though 2K2_6spd(aka Dave) says the 3.5 Altima with HS headers did.
There is NOT going to be *THAT* much airflow increase over a Y-pipe and so far I haven't heard of anybody having problems from a Y-pipe.
I thought Alex was working on OBX for a pair of long-tube headers?
08-14-2003, 10:31 PM
#128
Originally posted by emax02
I agree installing headers on a max is a PITA, I instaled headers twice on maxima. It took more like 10 hours though
I agree installing headers on a max is a PITA, I instaled headers twice on maxima. It took more like 10 hours though
I have a feeling this is gonna be an all day job the 1st time, after that will be smooth sailing but im sure ill figure out a way to do it faster then 6hrs I always do 
08-14-2003, 10:55 PM
#129
Originally posted by HitManSE
10hrs? Well thats understanable considering you did it w/o a hoist ect... Just for laughs I checked the labor book at work and it actually lists a solid 6hrs R&R for the exhuast manifold for the VQ35 max. That front itself isnt too bad, it was listed for like 2.1 or something for the front, but the rear is nearly 4. I havnt taken a closer look as of yet but the only thing im wondering is how the hell im gonna get the impact gun in there I have a feeling this is gonna be an all day job the 1st time, after that will be smooth sailing but im sure ill figure out a way to do it faster then 6hrs I always do
10hrs? Well thats understanable considering you did it w/o a hoist ect... Just for laughs I checked the labor book at work and it actually lists a solid 6hrs R&R for the exhuast manifold for the VQ35 max. That front itself isnt too bad, it was listed for like 2.1 or something for the front, but the rear is nearly 4. I havnt taken a closer look as of yet but the only thing im wondering is how the hell im gonna get the impact gun in there
I have a feeling this is gonna be an all day job the 1st time, after that will be smooth sailing but im sure ill figure out a way to do it faster then 6hrs I always do
Just remember to wear mechanic gloves. I counted 50 + flesh wounds after doing the job. BTW I used good old fasion socket wrenches to get all the bolts off.
08-14-2003, 11:21 PM
#130
Originally posted by emax02
Just remember to wear mechanic gloves. I counted 50 + flesh wounds after doing the job. BTW I used good old fasion socket wrenches to get all the bolts off.
Just remember to wear mechanic gloves. I counted 50 + flesh wounds after doing the job. BTW I used good old fasion socket wrenches to get all the bolts off.
Flesh wounds im used to since I work at a shop, same with burns ect.. 
Sad to say ive gotten used to it. I have access to all the tools I need from lifts to air to whatever. If you used socket wrenches I can see why you had 50+ flesh wounds, some jobs ive done by the time your done your arms are like raw meat, a bit of an exaggeration but you've been there and done that be4 
I just use sockets/wrenches to break loose the tough bolts and just shove the air rachet in to finish it off. Its loud but hell, less painful and alot faster so I shouldnt complain.
and watching
08-15-2003, 05:24 AM
#134
Originally posted by emax02
No need to remove the cam cover either I bet it made life much easier for you though
No need to remove the cam cover either
I bet it made life much easier for you though
08-15-2003, 07:52 AM
#136
Senior Member
Join Date: Jul 2003
Posts: 388
Originally posted by BiggD23
Probably a dumb question...but I assume this mod will void the warranty immediately right?
Probably a dumb question...but I assume this mod will void the warranty immediately right?
many Nissan dealerships are authorized Stillen distributers
not would it then make sense to void the warrenty ?
08-15-2003, 07:57 AM
#137
The altima hotshot prototype guy (snolden) installed his headers in about an hour. He's offering to do it for the Altima guys in Phoenix for beer and a meal. Is it possible that the Altima installation is that much easier than ours?
08-15-2003, 09:06 AM
#139
Guest
Posts: n/a
Originally posted by davidme
they would on your headers
many Nissan dealerships are authorized Stillen distributers
not would it then make sense to void the warrenty ?
they would on your headers
many Nissan dealerships are authorized Stillen distributers
not would it then make sense to void the warrenty ?
Could you try that again in english?
It seems like you're first saying they will void the warranty and then you're saying they won't.
08-15-2003, 09:14 AM
#140
Senior Member
Join Date: Jul 2003
Posts: 388
heh
they will only void the warranty on the part it replaces ....
In meaning Nissan does not warrenty the stillen header.
My Nissan rep assured me that ANY Stillen part ,provided it is installed by them and/or correctly, it will not void any Nissan warranty.
so if you put on all Stillen parts, Nissan would warranty what is left of the "stock" car
they will only void the warranty on the part it replaces ....
In meaning Nissan does not warrenty the stillen header.
My Nissan rep assured me that ANY Stillen part ,provided it is installed by them and/or correctly, it will not void any Nissan warranty.
so if you put on all Stillen parts, Nissan would warranty what is left of the "stock" car
08-15-2003, 09:15 AM
#141
Guest
Posts: n/a
Just because they are a Stillen distributor doesn't mean that they will warranty the part!
Look at the Nismo products... the "S" products will be covered by warranty (IF the dealer installs them)... the "R" products WILL NOT be covered by warranty... even if the dealer installs them.
Installing headers will INSTANTANEOUSLY void your warranty... unless you plan to remove them to take it to the dealer for service (yeah, right).
Look at the Nismo products... the "S" products will be covered by warranty (IF the dealer installs them)... the "R" products WILL NOT be covered by warranty... even if the dealer installs them.
Installing headers will INSTANTANEOUSLY void your warranty... unless you plan to remove them to take it to the dealer for service (yeah, right).
08-15-2003, 09:17 AM
#142
Technically, the dealer has to be able to prove that the headers directly contributed to the warranty part in question. That is how the law states it. Being able to enforce that law is another thing.
Originally posted by MAKSYMALNY
Installing headers will INSTANTANEOUSLY void your warranty... unless you plan to remove them to take it to the dealer for service (yeah, right).
Installing headers will INSTANTANEOUSLY void your warranty... unless you plan to remove them to take it to the dealer for service (yeah, right).
08-15-2003, 09:21 AM
#143
Guest
Posts: n/a
Originally posted by Jeff92se
Technically, the dealer has to be able to prove that the headers directly contributed to the warranty part in question. That is how the law states it. Being able to enforce that law is another thing.
Technically, the dealer has to be able to prove that the headers directly contributed to the warranty part in question. That is how the law states it. Being able to enforce that law is another thing.
The dealer doesn't have to cover it, plain and simple. Proving the that headers directly contributed? Well, I'm sure if the problem was with the door, it would be covered. But headers would void the warranty with the engine... and quite possibly the tranny... you forget that they can more easily prove that someone was racing, etc.
08-15-2003, 09:24 AM
#144
Senior Member
Join Date: Jul 2003
Posts: 388
ok.... let me state this again
"MY" Nissan Rep. at Pinnacle Nissan In Scottsdale AZ.
Will allow me to istall ANY Stillen Products WITHOUT voiding the warranty.
NISSAN DOES NOT WARRANTY THE PART !!!
STILLEN DOES!
BUT... The rest of the car is still under Nissan's warrenty!
This is what I was told.
"MY" Nissan Rep. at Pinnacle Nissan In Scottsdale AZ.
Will allow me to istall ANY Stillen Products WITHOUT voiding the warranty.
NISSAN DOES NOT WARRANTY THE PART !!!
STILLEN DOES!
BUT... The rest of the car is still under Nissan's warrenty!
This is what I was told.
08-15-2003, 09:28 AM
#145
Senior Member
Join Date: Jul 2003
Posts: 388
Originally posted by MAKSYMALNY
Well, I don't see too many winning lawsuits out there.
The dealer doesn't have to cover it, plain and simple. Proving the that headers directly contributed? Well, I'm sure if the problem was with the door, it would be covered. But headers would void the warranty with the engine... and quite possibly the tranny... you forget that they can more easily prove that someone was racing, etc.
Well, I don't see too many winning lawsuits out there.
The dealer doesn't have to cover it, plain and simple. Proving the that headers directly contributed? Well, I'm sure if the problem was with the door, it would be covered. But headers would void the warranty with the engine... and quite possibly the tranny... you forget that they can more easily prove that someone was racing, etc.
No they can not void the engine warrenty as even with a FULL exhaust and intake the engine still runs well withing factory specifications
The 350 has 32 more HP then the MAx on the same Engine
They will be releasing performance parts that are covered by warranty
So I'd say an easy 340-360 HP is well within the design for the engine.
Quite possibly higher!
08-15-2003, 09:28 AM
#146
Guest
Posts: n/a
Sorry, but Stillen covers the part, yes. Stillen doesn't cover what the part *may* do to your engine/etc.
The way MY Nissan tech/Svc Mgr told me was this... if it goes on and comes off easy, no problem (like an FSTB, RSB, etc)... if it MODIFIES something (like an intake, headers, springs, etc)... then NO WAY.
The way MY Nissan tech/Svc Mgr told me was this... if it goes on and comes off easy, no problem (like an FSTB, RSB, etc)... if it MODIFIES something (like an intake, headers, springs, etc)... then NO WAY.
08-15-2003, 09:33 AM
#147
Originally posted by davidme
ok.... let me state this again
"MY" Nissan Rep. at Pinnacle Nissan In Scottsdale AZ.
Will allow me to istall ANY Stillen Products WITHOUT voiding the warranty.
NISSAN DOES NOT WARRANTY THE PART !!!
STILLEN DOES!
BUT... The rest of the car is still under Nissan's warrenty!
This is what I was told.
ok.... let me state this again
"MY" Nissan Rep. at Pinnacle Nissan In Scottsdale AZ.
Will allow me to istall ANY Stillen Products WITHOUT voiding the warranty.
NISSAN DOES NOT WARRANTY THE PART !!!
STILLEN DOES!
BUT... The rest of the car is still under Nissan's warrenty!
This is what I was told.
However, I'm VERY happy you told me about Pinnacle Nissan and their view on Stillen parts. I'm going to start driving down there for my warranty work ESPECIALLY once I get the Stillen SC and put down 300+whp and eat trannys/drive axles for breakfast, lunch, and dinner.
That $1500 extended warranty is looking MUCH more appealing now.
08-15-2003, 09:38 AM
#148
Well of course the service guy is going to cover his back and say most things will void the engine warranty. 90% of all dealerships will. Even if it's illegal to do so. Most dealerships will deny clearcut warranty issues if the know the customer is not informed. This is NISSAN we are talking about. Not Lexus
Originally posted by MAKSYMALNY
Sorry, but Stillen covers the part, yes. Stillen doesn't cover what the part *may* do to your engine/etc.
The way MY Nissan tech/Svc Mgr told me was this... if it goes on and comes off easy, no problem (like an FSTB, RSB, etc)... if it MODIFIES something (like an intake, headers, springs, etc)... then NO WAY.
Sorry, but Stillen covers the part, yes. Stillen doesn't cover what the part *may* do to your engine/etc.
The way MY Nissan tech/Svc Mgr told me was this... if it goes on and comes off easy, no problem (like an FSTB, RSB, etc)... if it MODIFIES something (like an intake, headers, springs, etc)... then NO WAY.
08-15-2003, 09:42 AM
#149
Guest
Posts: n/a
Whatever, seriously.
The techs I know are pretty d@mn cool, they wouldn't steer anyone wrong (they will hook you up and turn your timing forward 2 or 3 degrees). They told me two stories... one was a 5th gen that pulled in for service with a supercharger on it... instantly was voided. The other was a dude that blew 3 MAFs within a short period of time. After the 3rd one, they told him "sorry, no way man... how do we justify it to Nissan?"... they KNEW he had an intake and he was racing. They were cool with the first 2 MAFs, but when the pushed it, they had to step up and get 'formal' about it.
The techs I know are pretty d@mn cool, they wouldn't steer anyone wrong (they will hook you up and turn your timing forward 2 or 3 degrees). They told me two stories... one was a 5th gen that pulled in for service with a supercharger on it... instantly was voided. The other was a dude that blew 3 MAFs within a short period of time. After the 3rd one, they told him "sorry, no way man... how do we justify it to Nissan?"... they KNEW he had an intake and he was racing. They were cool with the first 2 MAFs, but when the pushed it, they had to step up and get 'formal' about it.
08-15-2003, 09:50 AM
#150
What does "racing" or an "intake" have to do with blown mafs?? You mean Nissan can say "Look our Maxima has 255hp! It's FAST". But we are going to void the living hell out of the warranty if you actually USE that hp.
Originally posted by MAKSYMALNY
Whatever, seriously.
The techs I know are pretty d@mn cool, they wouldn't steer anyone wrong (they will hook you up and turn your timing forward 2 or 3 degrees). They told me two stories... one was a 5th gen that pulled in for service with a supercharger on it... instantly was voided. The other was a dude that blew 3 MAFs within a short period of time. After the 3rd one, they told him "sorry, no way man... how do we justify it to Nissan?"... they KNEW he had an intake and he was racing. They were cool with the first 2 MAFs, but when the pushed it, they had to step up and get 'formal' about it.
Whatever, seriously.
The techs I know are pretty d@mn cool, they wouldn't steer anyone wrong (they will hook you up and turn your timing forward 2 or 3 degrees). They told me two stories... one was a 5th gen that pulled in for service with a supercharger on it... instantly was voided. The other was a dude that blew 3 MAFs within a short period of time. After the 3rd one, they told him "sorry, no way man... how do we justify it to Nissan?"... they KNEW he had an intake and he was racing. They were cool with the first 2 MAFs, but when the pushed it, they had to step up and get 'formal' about it.
08-16-2003, 11:22 AM
#152
Originally posted by SR20DEN
The rear manifold is where the problem lies. I removed mine from the top after I removed the intake manifold and the rear cam cover. Even then it was a major PITA. It's probably easier to remove the precat from it first so you can get the heat shield off while the manifold is still on the car. The front manifold is a cake walk once you remove the radiator. This is about the same way Emax removed his (with the precats still on).
The rear manifold is where the problem lies. I removed mine from the top after I removed the intake manifold and the rear cam cover. Even then it was a major PITA. It's probably easier to remove the precat from it first so you can get the heat shield off while the manifold is still on the car. The front manifold is a cake walk once you remove the radiator. This is about the same way Emax removed his (with the precats still on).
08-17-2003, 08:13 AM
#153
Originally posted by MAKSYMALNY
Whatever, seriously.
The techs I know are pretty d@mn cool, they wouldn't steer anyone wrong (they will hook you up and turn your timing forward 2 or 3 degrees). They told me two stories... one was a 5th gen that pulled in for service with a supercharger on it... instantly was voided. The other was a dude that blew 3 MAFs within a short period of time. After the 3rd one, they told him "sorry, no way man... how do we justify it to Nissan?"... they KNEW he had an intake and he was racing. They were cool with the first 2 MAFs, but when the pushed it, they had to step up and get 'formal' about it.
Whatever, seriously.
The techs I know are pretty d@mn cool, they wouldn't steer anyone wrong (they will hook you up and turn your timing forward 2 or 3 degrees). They told me two stories... one was a 5th gen that pulled in for service with a supercharger on it... instantly was voided. The other was a dude that blew 3 MAFs within a short period of time. After the 3rd one, they told him "sorry, no way man... how do we justify it to Nissan?"... they KNEW he had an intake and he was racing. They were cool with the first 2 MAFs, but when the pushed it, they had to step up and get 'formal' about it.
08-17-2003, 08:36 AM
#154
Originally posted by sleepermax
You don't even have to remove the radiator. If you remove the fan assembly, which takes about a minute, you'll have plenty of clearance to remove the front manifold.
You don't even have to remove the radiator. If you remove the fan assembly, which takes about a minute, you'll have plenty of clearance to remove the front manifold.
08-17-2003, 09:03 AM
#155
Originally posted by SR20DEN
Removing the radator is just as easy and gives you more room to work with.
Removing the radator is just as easy and gives you more room to work with.
