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Just got my 3.5 for $225 Got some build Q's

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Old 01-29-2008 | 06:29 PM
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Just got my 3.5 for $225 Got some build Q's

Ok I just got back from picking up my 02 maxima 3.5 motor. I got it for 225 because the oil pan was broke. Lucky me. Well Im going to build this motor any how so I was not conceired about the milage but it only has 45,000 on it anyhow! Ok now some Q's Im going to do some forged rods pistons cams and vavle springs along with all new apr bolts. Im looking for about 500- 600 whp if possible. 1st Q's what eles will I need to do to make this kinda power on this motor and for it too last . Of course im boosted with a turbo that can make this power. But will the stock oil pump handle a 7000- 7500 rev with this power! im wondering about that.
Old 01-29-2008 | 07:10 PM
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One thing you will have to do is get much wider wheels/tires if you plan on controlling it. lol

Would an oil pump from the HR VQ35DE work?

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Old 01-29-2008 | 07:36 PM
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I believe the HR pump is different, but the Revup(05-07??) pump works. I got one in my car I have the part number, I'll dig it up somewhere. The oil pump will be the weak point if you do all the above things and rev it out to 7500+. I'd also like to see how a 6spd would hold up.

I also think with that power you should get the stronger ARP head studs, L19 (?) I think they're called. Definitly a new headgasket, something a little thicker like a .74mm headgasket (Cometic makes one stock bore unless your getting larger pistons, which I think you'll probably need.)

....Sleeved block...

Last edited by 98MaXeDouT; 01-29-2008 at 07:42 PM.
Old 01-29-2008 | 07:38 PM
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opps, that's what I meant...the rev-up pump. Got confused with "HR" as in high rev...
Old 01-29-2008 | 08:01 PM
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HKS head gasket.
ARP L19 head studs/main studs/rod bolts.
Nissan OEM engine rebuild gasket kit.
Whichever pistons you decide to get, don't cheap out and get stock bore. Oversize = FTW.
Rev-up earl pump.
Upgraded radiator if you still have the OEM unit.
etc.


I'd also consider some ACL/Cosworth bearings.
Old 01-29-2008 | 08:46 PM
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Originally Posted by nismology
HKS head gasket.
ARP L19 head studs/main studs/rod bolts.
Nissan OEM engine rebuild gasket kit.
Whichever pistons you decide to get, don't cheap out and get stock bore. Oversize = FTW.
Rev-up earl pump.
Upgraded radiator if you still have the OEM unit.
etc.


I'd also consider some ACL/Cosworth bearings.
Can't forget the Nismo Thermostat....
Old 01-29-2008 | 08:51 PM
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IB nismology says radiator > t-stat WRT cooling.

Last edited by NmexMAX; 01-29-2008 at 08:55 PM.
Old 01-29-2008 | 09:03 PM
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what is a wrt cooling? Also I noticed that the 3.5 hole is open where the 3.0 has a hose going to the coolent log with a termastat should I use the 3.0 or 3.5 coolent log?
Old 01-29-2008 | 09:25 PM
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WRT = with respect to
cooling = well, you know

Semi inside convo between myself and nismology (lower t-stats vs Al rads)
Old 01-29-2008 | 10:12 PM
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Originally Posted by 98MaXeDouT
Can't forget the Nismo Thermostat....
Too cool IMO. I'd upgrade the radiator and switch to a waterless coolant before I did that.
Old 01-29-2008 | 10:13 PM
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Originally Posted by NmexMAX
IB nismology says radiator > t-stat WRT cooling.
Old 01-30-2008 | 07:18 PM
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Originally Posted by accordingtou
600hp or 600whp?
What injectors are you going with?
Engine build wise ...Meximax & others already told you what to do.
Balance the rotating assembly magnaflux /polish crank. etc etc..
Oh & imho I would not worry about the rev up pump if you are only reving to 7500 with balanced forged internals.
Get rid of that solid UDP
I kept the stocker oil pump for my "N/A" "stock internals engine" (jwt cams&springs)
It will not see pass 7300 rpms Jerks With Technology do not recommend it.
My built engine is another story the rev-up is a must considering it will see past 7800rpms.
What no one has brought up is your mounts
Secure your drivetrain
Pm t6378tp he does a good job filling the mounts
If not.... DIY
He is also in the procees of making a "stiffening bracket" for those who just want a stiff mount for the track/ weekend
http://forums.maxima.org/showthread.php?t=551718
These are the mounts I installed in his 4thgen


These are the mounts going in my Project car



Also get a griffin radiator if its in your budget $360 shipped
Some samco hoses wouldnt hurt either.lol make sure you order the 3.5 hoses if you are keeping the 3.5 thermostat
Thanks for the info! I have soild es mounts now and jc traction bars. i plan to rid a damper to hook to back of the motor too.
Old 02-09-2008 | 09:44 PM
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Wow thats some high goals! GL with it all, and at least you already have a 6 speed!

I'm going for 270-300WHP in my VQ35 S13, I couldn't imagine 600WHP in my maxima! EEK GL man.

~Alex
Old 02-10-2008 | 08:36 PM
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check this out...i think you can benefit.
i ordered mine. along with C2 cam from jwt and some other goodies. i have the same goal as you, but in my 5.5th gen. ill pm you some more info...if you want.

http://www.z1auto.com/prodmore.asp?m...ne&prodid=2112

http://www.stillen.com/product.asp?i...N&model=MAXIMA

http://www.z1auto.com/submodel.asp?m...50z&cat=engine

^^^^ this link should have everything you need.
i am in the process of build a strong N/A VQ35 myself.
i got a guy from Forged performance helping me with mine.(they are the VQ35 Experts) you should check around My350z.com forums.
Old 02-10-2008 | 09:03 PM
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I LOVE n/a, but just the price of those heads + install could get you a turbo installed/tuned with gobs more power. Only thing I HATE about n/a

Originally Posted by MattyBlacc
check this out...i think you can benefit.
i ordered mine. along with C2 cam from jwt and some other goodies. i have the same goal as you, but in my 5.5th gen. ill pm you some more info...if you want.

http://www.z1auto.com/prodmore.asp?m...ne&prodid=2112

http://www.stillen.com/product.asp?i...N&model=MAXIMA

http://www.z1auto.com/submodel.asp?m...50z&cat=engine

^^^^ this link should have everything you need.
i am in the process of build a strong N/A VQ35 myself.
i got a guy from Forged performance helping me with mine.(they are the VQ35 Experts) you should check around My350z.com forums.
Old 02-10-2008 | 09:10 PM
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Forged performance is only 1 of a handful of shops that know their stuff when it comes to FI VQ35's. They surely aren't the only shop that does, though. Also The stuff you linked to is overpriced IMO.

You can get custom C/R pistons for not much more than those wiseco's. And eagle rods are much cheaper yet as strong as you will ever need them to be.
Old 02-12-2008 | 05:00 PM
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Originally Posted by nismology
Forged performance is only 1 of a handful of shops that know their stuff when it comes to FI VQ35's. They surely aren't the only shop that does, though. Also The stuff you linked to is overpriced IMO.

You can get custom C/R pistons for not much more than those wiseco's. And eagle rods are much cheaper yet as strong as you will ever need them to be.
lol...well hook me up with your links. i been searching. thats what caught my eye.
if you can find cheaper then please let me know. lol
im a cheap azz.
Old 02-17-2008 | 10:11 PM
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Hey thanks for the links:
Yeah I think im going to go with the bc stage 2 cams they seem to pull strong to 7000 on the z but we have to rember we a differant manifold too. Also no vtc. So Ill have to play with it and try it to see what I end up with on mine. im going to do the shelf mod on the maxima intake manifold to see where it will put me but im hoping to shift at around 7200-7400. Im getting valve springs too. You can get eagle rods on ebay for like 440 shipped. they are real Alot of the 350 member have reported good things. The bc cams are like 800 on ebay im just waiting for them to come back on ebay now so I can buy them. It seem like they are on a week off a week!
Old 02-22-2008 | 03:14 PM
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Originally Posted by 95turbo gxe
Hey thanks for the links:
Yeah I think im going to go with the bc stage 2 cams they seem to pull strong to 7000 on the z but we have to rember we a differant manifold too. Also no vtc. So Ill have to play with it and try it to see what I end up with on mine. im going to do the shelf mod on the maxima intake manifold to see where it will put me but im hoping to shift at around 7200-7400. Im getting valve springs too. You can get eagle rods on ebay for like 440 shipped. they are real Alot of the 350 member have reported good things. The bc cams are like 800 on ebay im just waiting for them to come back on ebay now so I can buy them. It seem like they are on a week off a week!
you can get forged eagle rods from stillen.com
also you might wanna check www.summitracing.com
they are located in GA but they have tons of things for imports. quite a few items for the vq35.
check em out.
let me know if you need more links. i got tons! lol
ive been doin alot of research. my 3.5 has been pulled out and stripped down. im doin a high compression 11.1 build up with a 125 shot. and a greddy ultimate.
its gonna be a beast.
Old 03-09-2008 | 06:51 PM
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Originally Posted by MattyBlacc
you can get forged eagle rods from stillen.com
also you might wanna check www.summitracing.com
they are located in GA but they have tons of things for imports. quite a few items for the vq35.
check em out.
let me know if you need more links. i got tons! lol
ive been doin alot of research. my 3.5 has been pulled out and stripped down. im doin a high compression 11.1 build up with a 125 shot. and a greddy ultimate.
its gonna be a beast.
Yeah that sound good build you have their. Well im going to with the nismo thermo and going to try to set up a breather tank too. Head lift seems to be he only issue Im worried with now and maby making power up in the 7000 and up area. IM not sure wether Im going to to waste the money on the L19 or not its been a some saying its a waste on the 350 forums and that you can get my with 1/2 or apr standard studs and long as its install correctly. Im going to look over that in the next couple of days to see what I come up with! Cooling will play a role in this too! Im saying that it will be hard to try to control this kinda of power but this is the last thing I do to the maxima before moving on to my other car but im keeping it and plan on leaving room in the build to make more power than I need. 600whp is more than I need the only thing I have to help traction is d2 coil overs traction bars soild mounts and slicks of my choice. Hope for the best once its done. Im going with aris extream duty 9:1 pistons to keep some throttle responce and to have more piston than i need! I hope to be on the dyno 1 month from now maybe a month and a half at the most. Well if any have any more info chime in im alway listening!
Old 03-09-2008 | 07:09 PM
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L19's are not a waste of time. I wouldn't even use standard ARP's on an all-motor build, let alone one for 600HP. Cripes...


I'd SERIOUSLY look into the DE-K cooling mod. The casting is there. You'd just need to create a hole and tap the threads for the bolts. A waterless coolant like EVANS NPG+ or NPG-R would also be a good idea. Cooling will be key with that much power.

HKS head gasket, I'm assuming?
Old 03-09-2008 | 07:21 PM
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Originally Posted by nismology
L19's are not a waste of time. I wouldn't even use standard ARP's on an all-motor build, let alone one for 600HP. Cripes...


I'd SERIOUSLY look into the DE-K cooling mod. The casting is there. You'd just need to create a hole and tap the threads for the bolts. A waterless coolant like EVANS NPG+ or NPG-R would also be a good idea. Cooling will be key with that much power.

HKS head gasket, I'm assuming?
Yeah I was wonder about the coolent on the 3.5 vs the dek. I wonder why they did away with it. On head Gaskets im not sure Im leaning towards the cosmic or I think thats how you spell it. Some members are doing some big numbers on them and some are doing some good number on stock gasket I think there was a guy making 600 on stock hg and apr standard with no head lift issue, but im going with cosmic at the least!

So how big should I open that hole in the block for the cooling mod Im going out in the shop for a minute to compare I have 2 dek and one de and a 3.5 in the shop to look at.
Old 03-09-2008 | 07:32 PM
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ok I see how the castings are. Would I use two thermostats or would I just let the water bypass it. What would this mod do for me in cooling sense. Im not douting you im just wondering how it would work. The 3.5 has small holes I could enlarge then and tap them for the dek bolts. Also the dek has two little slits how do you think I should make the hole in the 3.5 block. Also a lot of the 350 guys do a rear coolent by pass mod is this similar?

Last edited by 95turbo gxe; 03-09-2008 at 08:23 PM.
Old 03-09-2008 | 08:18 PM
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Old 03-10-2008 | 10:49 AM
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Originally Posted by 95turbo gxe
ok I see how the castings are. Would I use two thermostats or would I just let the water bypass it. What would this mod do for me in cooling sense. Im not douting you im just wondering how it would work. The 3.5 has small holes I could enlarge then and tap them for the dek bolts. Also the dek has two little slits how do you think I should make the hole in the 3.5 block. Also a lot of the 350 guys do a rear coolent by pass mod is this similar?
Yes it's similar but they use a Pathy log. I'll probably be doing the DEK coolant log as well (2 T-stats). For the hole size I was planning to measure the hole area on the DEK and bump it up by a factor (haven't calculated these yet). There may also be another option to consider but it requires a little work on the block: using HR head gaskets (better coolant flow balance). I'll have to dig up the info I came across on this, I'm at work now and it's on my home computer.

Last edited by DandyMax; 03-12-2008 at 09:51 AM.
Old 03-10-2008 | 01:03 PM
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Why have I not heard from you about this....??








Last edited by nismology; 03-10-2008 at 04:43 PM.
Old 03-10-2008 | 04:57 PM
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Originally Posted by nismology
Why have I not heard from you about this....??







lol recent find, haven't talked to you since...

pdf here

Basically the HR gasket has a better flow balance, blocks off the front head inlets and repositions the rest of the inlets forcing water to come up to the heads at the exhaust valves (where you want it). It's a 2-1/2 layer gasket with fire ring preload inserts. Now one thing I haven't done yet is consider how this would work in combo with the DEK log mod, or really get a good handle on how much material/where it would need to be removed from the block (need to go physically look at it).

Oh and that pdf also has interesting info on head bolt hardness. Basically HR > all previous gen 3.5 and 3.0. Unfortunately no tensile strength numbers given, would be interesting to compare to ARP L19.

Last edited by DandyMax; 03-10-2008 at 05:46 PM.
Old 03-10-2008 | 06:53 PM
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Originally Posted by DandyMax
lol recent find, haven't talked to you since...

pdf here

Basically the HR gasket has a better flow balance, blocks off the front head inlets and repositions the rest of the inlets forcing water to come up to the heads at the exhaust valves (where you want it). It's a 2-1/2 layer gasket with fire ring preload inserts. Now one thing I haven't done yet is consider how this would work in combo with the DEK log mod, or really get a good handle on how much material/where it would need to be removed from the block (need to go physically look at it).

Oh and that pdf also has interesting info on head bolt hardness. Basically HR > all previous gen 3.5 and 3.0. Unfortunately no tensile strength numbers given, would be interesting to compare to ARP L19.
Good info Danny I may be calling you in a week or so to find out more in this!
Old 03-10-2008 | 07:42 PM
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I wonder if I would be better off going with this upgradded z intake manifold than the maxima intake?

http://www.intensepower.com/coinmavq03.html

Old 03-11-2008 | 08:54 AM
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Originally Posted by 95turbo gxe
I wonder if I would be better off going with this upgradded z intake manifold than the maxima intake?

http://www.intensepower.com/coinmavq03.html

Well the (very few) dynos done so far on the Z33's with the Cossie show improvements with boosted setups. But they have operating VTC's, mind you, and you have to compare your setup with what the dyno'd cars setups were. There's not really a great deal of info to base anything on, especially compared to the Maxima intake, but preliminary findings would suggest the manifold is better for FI than the Z manifold...
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