SR20DET Engine stutter hard acceleration - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

jorgezee1 · 06-25-2008, 12:58 AM

Hello, Thanks in advance for your input.
ok my main issue is a stutter on hard accelerations when boosting. If i mash on the gas the car pulls fine then it feels like the car "hicups or hesitation" and then pulls fine again. it happens on 2nd 3rd and 4th. I haven't been able to produce it in 1st or 5th. if i ease into full acceleration there is no issues. happens around 3000-4000rpm. I have checked for vacuum leaks and turbo leaks none found spark plugs are good too.

Engine s14, 550cc injectors , z32 maf, walbro pump, Nismo FPR, stock t28 turbo, Power FC tuned by G-Dimensions boosting 13psi everything else stock. I believe it might be a tuning/timing related but would like your opinions.

Thanks.

06-25-2008, 12:58 AM	#1
jorgezee1 Zilvia Junkie Join Date: Mar 2008 Location: West Covina Posts: 386 Trader Rating: (22) Feedback Score: 22 reviews	SR20DET Engine stutter hard acceleration Hello, Thanks in advance for your input. ok my main issue is a stutter on hard accelerations when boosting. If i mash on the gas the car pulls fine then it feels like the car "hicups or hesitation" and then pulls fine again. it happens on 2nd 3rd and 4th. I haven't been able to produce it in 1st or 5th. if i ease into full acceleration there is no issues. happens around 3000-4000rpm. I have checked for vacuum leaks and turbo leaks none found spark plugs are good too. Engine s14, 550cc injectors , z32 maf, walbro pump, Nismo FPR, stock t28 turbo, Power FC tuned by G-Dimensions boosting 13psi everything else stock. I believe it might be a tuning/timing related but would like your opinions. Thanks.