VQ35HR strocker
#1
Registered User
Thread Starter
VQ35HR strocker
Hi Guys
I need some advice to choose the parts to build my trackday car.
For the strocker i have two options :
Full BC strocker kit with 11.5:1 CR pistons and Tomei 272 cams (which lift ?)
or
BC crankshaft, connecting rods and the JWT cams and pistons combo, 12.5:1 CR.
600cc deatschwerks injectors, upgraded fuel pump (walbro or deatschwerks)
Do i need a fuel return system ?
For the intake i think of the admin tuning 3" longtubes intake and the EPS throttle bodies.
On the exhaust side i'm currently with the OEM headers, test pipes and an invidia Q300 exhaust. I think i'll take the tomei headers and DE test pipes over the PPE longtubes because of noise issues on french tracks. 95db static at 75% rpm range, 1 meter away from the exhaust at a 45° angle for most of the tracks.
For the oil i have a 19 row oil cooler, i'll take the CJM baffled oil pan, i'll take a nismo oil pump.
For the clutch i was thinking of the OS GIKEN twin plate TR2CD and some components from zspeed performance.
The engine management will be a motec with an AIM MXG dash.
Thank you.
I need some advice to choose the parts to build my trackday car.
For the strocker i have two options :
Full BC strocker kit with 11.5:1 CR pistons and Tomei 272 cams (which lift ?)
or
BC crankshaft, connecting rods and the JWT cams and pistons combo, 12.5:1 CR.
600cc deatschwerks injectors, upgraded fuel pump (walbro or deatschwerks)
Do i need a fuel return system ?
For the intake i think of the admin tuning 3" longtubes intake and the EPS throttle bodies.
On the exhaust side i'm currently with the OEM headers, test pipes and an invidia Q300 exhaust. I think i'll take the tomei headers and DE test pipes over the PPE longtubes because of noise issues on french tracks. 95db static at 75% rpm range, 1 meter away from the exhaust at a 45° angle for most of the tracks.
For the oil i have a 19 row oil cooler, i'll take the CJM baffled oil pan, i'll take a nismo oil pump.
For the clutch i was thinking of the OS GIKEN twin plate TR2CD and some components from zspeed performance.
The engine management will be a motec with an AIM MXG dash.
Thank you.
Last edited by Stanisfr; 07-19-2016 at 08:43 PM.
#3
Registered User
Thread Starter
Hi,
For the power goal i think around 400 whp would be good, i never saw a dyno of a vq35hr with a strocker kit na so i don't know what to expect.
I'm not interested in a carbonetic clutch because it requires a csc elimination kit and i never had any problem with mine in a little more than 90K kms.
What's BNIB ?
For the power goal i think around 400 whp would be good, i never saw a dyno of a vq35hr with a strocker kit na so i don't know what to expect.
I'm not interested in a carbonetic clutch because it requires a csc elimination kit and i never had any problem with mine in a little more than 90K kms.
What's BNIB ?
#4
New Member
Brand new in box
Wouldn't stroking to a 4.1 limit your revs?
Wouldn't stroking to a 4.1 limit your revs?
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Stanisfr (07-19-2016)
#5
Registered User
Thread Starter
#6
Registered User
iTrader: (3)
Hi,
For the power goal i think around 400 whp would be good, i never saw a dyno of a vq35hr with a strocker kit na so i don't know what to expect.
I'm not interested in a carbonetic clutch because it requires a csc elimination kit and i never had any problem with mine in a little more than 90K kms.
What's BNIB ?
For the power goal i think around 400 whp would be good, i never saw a dyno of a vq35hr with a strocker kit na so i don't know what to expect.
I'm not interested in a carbonetic clutch because it requires a csc elimination kit and i never had any problem with mine in a little more than 90K kms.
What's BNIB ?
#7
Registered User
Thread Starter
I never did drag race or race starts with the car so apart from the trackdays there was no aggressive driving.
I know carbonetics is a good brand it' s not about that.
You're giving me doubts about the clutch now.
I know carbonetics is a good brand it' s not about that.
You're giving me doubts about the clutch now.
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#9
Registered User
Very cool build it sounds like. The stroker kit should limit your revs because of piston speed. Forged rods can handle the high rpms easily but your cylinder walls might oval sooner than you want. I would try leaving it at 7500 MAX. That still pretty lofty. With that, you could use the stock oil pump too. Look into some stiffer valve springs or a dual spring kit if you get high lift cams so you don't hit coil bind.
As for your fuel return question, I doubt you'll need it since you're staying NA. The walbro 255 and the quoted 600cc injtecors will be more than enough fuel. To give you an idea of how much extra fuel that is, my cammed 3.7L had NO fuel issues on the stock 270ish injectors and fuel pump. I only upgraded becuasse I switched to E85 and didn't want to starve the engine at 8k rpms. If you want to save a little on injectors, the stock GTR ones are 570's and can be had under 200 easily
As for your fuel return question, I doubt you'll need it since you're staying NA. The walbro 255 and the quoted 600cc injtecors will be more than enough fuel. To give you an idea of how much extra fuel that is, my cammed 3.7L had NO fuel issues on the stock 270ish injectors and fuel pump. I only upgraded becuasse I switched to E85 and didn't want to starve the engine at 8k rpms. If you want to save a little on injectors, the stock GTR ones are 570's and can be had under 200 easily
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