Stock motor with forced induction . . . how badly did you push it?
I believe its because of the bigger injectors. I'm guessing you're running Utec? if so Haltech will fix the problem.
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tune? if so its the uprev osiris. does your car do the same? he also said not to turn the boost up til i get new spark plugs, so maybe better spark plugs will help it start better?
Last edited by steven3313; Sep 17, 2010 at 12:06 PM.
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Sorry to disturb every one but im new and i have a 2003 g35 6mt. How much whp/wtq can i have with:
stock block
GTM TT kit (GT2871R .86AR)
APS 3'' High output cat back
GTM STAGE 1 CLUTCH & FLYWHEEL COMBO
and for sure lowered suspension
injectors? which one
I want 400-450whp on daily drive. is it possible with stock block and low boost?
stock block
GTM TT kit (GT2871R .86AR)
APS 3'' High output cat back
GTM STAGE 1 CLUTCH & FLYWHEEL COMBO
and for sure lowered suspension
injectors? which one
I want 400-450whp on daily drive. is it possible with stock block and low boost?
It depends on what you call low boost
400-450whp should be easy with 7-10psi.
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You can update mine:
3. HomieG35 - 2004.5 5AT Coupe. ATI ProCharger 7psi, UTEC, by SGP Racing, return fuel system, 720cc injectors, test pipes, built tranny and 6MT rearend. 32,000 miles, 15,000 on boost. 350whp, 320wtq. Mileage updated 04/11/2010
I took the ProCharger off last month with a total car mileage of 34,000 miles - that's 17,000 boosted miles. Always stayed at 7psi and nothing else changed. I didn't even get a retune for the last two years.
I had a compression and leakdown test done and all numbers were within 10 points of each other... so the engine was as good as when the supercharger was installed.
I feel I got out pretty lucky. I'll be going FI again within a year. Just going to be driving the car more between now and then
3. HomieG35 - 2004.5 5AT Coupe. ATI ProCharger 7psi, UTEC, by SGP Racing, return fuel system, 720cc injectors, test pipes, built tranny and 6MT rearend. 32,000 miles, 15,000 on boost. 350whp, 320wtq. Mileage updated 04/11/2010
I took the ProCharger off last month with a total car mileage of 34,000 miles - that's 17,000 boosted miles. Always stayed at 7psi and nothing else changed. I didn't even get a retune for the last two years.
I had a compression and leakdown test done and all numbers were within 10 points of each other... so the engine was as good as when the supercharger was installed.
I feel I got out pretty lucky. I'll be going FI again within a year. Just going to be driving the car more between now and then
Post the dynojet sheet with the boost curve or it didn't happen.
His dog ate the dyno sheet
Please update mine. I changed my screen name from infinitiGTR2004 to APSMike.
14. APSMike - 2004 6MT Coupe - Daily Driver - APS TT - APS Plenum - 2.5" APS Test Pipies - Borla True Dual Cat Back - Zeitronix WB/EGT/BST - ACT HD w/Street Disc - KurumaZ Front Bumper - Installed @ 24K Miles by Me - 75K Miles on Boost (Still going strong) - Tuned once by JapTrix after install - 93 Octane - 446 RWHP / 403 RWTQ (dynojet) - 10 PSI - 12.09@115.9mph - 1.89 60' - BFG DR - 3,750 lb - 40+ passes down the 1320 Updated 12/23/2010
14. APSMike - 2004 6MT Coupe - Daily Driver - APS TT - APS Plenum - 2.5" APS Test Pipies - Borla True Dual Cat Back - Zeitronix WB/EGT/BST - ACT HD w/Street Disc - KurumaZ Front Bumper - Installed @ 24K Miles by Me - 75K Miles on Boost (Still going strong) - Tuned once by JapTrix after install - 93 Octane - 446 RWHP / 403 RWTQ (dynojet) - 10 PSI - 12.09@115.9mph - 1.89 60' - BFG DR - 3,750 lb - 40+ passes down the 1320 Updated 12/23/2010
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From: Phoenix
Sound Performance in IL... Had it on the dyno to tune it. The tuner couldnt get a base map in time from greddy so he started from scratch on my emanage. Leaned it out heard a POP!! White/black smoke spewing! Put down decent numbers brought it to a buddy he check codes. Misfire cyl. 4. Brought car to Ams performance did a
Compression test . Cylinder 4 no good. The oil cap started hovering as it was loose during the test.
Ams performance 1st g35 fully built. Its together and it being final tune this week so i can pick up. Got me racelogic traction control and some 20'' DPE
ro5 variants patiently waiting
Compression test . Cylinder 4 no good. The oil cap started hovering as it was loose during the test.
Ams performance 1st g35 fully built. Its together and it being final tune this week so i can pick up. Got me racelogic traction control and some 20'' DPE
ro5 variants patiently waiting
^ I blew the same piston and number 5 (I should say cracked them around the rings) from a bad tune as well in the beginning at 8psi after about 1500 miles...and by bad tune, I mean that the first tune was tuned to 6500rpms instead of 7000rpms. Minor mistake but made right. The Tune is everything!
Although I am still with a stock block, I am happy with the tune at under 6psi. I actually have a better torque curve and better numbers than I did prior on the first tune.
Update!!!
45. g-adabout - Stock block Turbonetics ST kit...threw out the crappy turbo and replaced it with a Garrett T3/60-1, UpRev Tune, HKS Exhaust with strait pipes (no cat or resonators) with an electronic cut out and injectors. 393whp and 352wtq at 5.5psi! <-final set up Also tuned at 8psi for 418whp and 378wtq but that tune would require a new MAF and Fuel Return upgrades. 6500 clean boosted miles now, several passes down the 1320. Sacrificed a few A/C lines and a lower radiator hose, but motor is still running strong.
Although I am still with a stock block, I am happy with the tune at under 6psi. I actually have a better torque curve and better numbers than I did prior on the first tune.
Update!!!
45. g-adabout - Stock block Turbonetics ST kit...threw out the crappy turbo and replaced it with a Garrett T3/60-1, UpRev Tune, HKS Exhaust with strait pipes (no cat or resonators) with an electronic cut out and injectors. 393whp and 352wtq at 5.5psi! <-final set up Also tuned at 8psi for 418whp and 378wtq but that tune would require a new MAF and Fuel Return upgrades. 6500 clean boosted miles now, several passes down the 1320. Sacrificed a few A/C lines and a lower radiator hose, but motor is still running strong.
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From: Phoenix
Mine was tuned to 6500 instead of 7000 as well and mine also crack on the side by the rings. The shop took 0 responsibility. I went with the Cosworth 8.8:1 this time for a bit higher compression.