how would some jdm 440's on 12-14 psi with the twins run on a stock ecu? do u think its worth it to do it?
jdm 440's with a stock ecu
- Thread starter #1StunnaVic
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#1StunnaVic;955538 said:
Sound be fine. Good cheap upgrade. Maybe someone can chime in whether or not a SAFC is needed.
It is needed, otherwise it will be dumping roughly 15% more fuel throughout the entire powerband.
cbutler;955662 said:
it depends. If you're maxing out your fuel at say 15 psi, then drop in the 440s to run 18 psi then you'll gain power, but just dropping in the 440s to run 15 psi again will gain nothing. THe only gains you will get is from the tune from the SAFC (you would gain the same power with the stock injectors once tuned as well)
I have done it. My car ran and drove fine cruising around town as the ECU was able to correct the difference, but under WOT my car was running pretty rich. It was drivable but you won't get the max performance out of the car unless you get an AFC or something of that nature.
Please stop with the false information guys.
First off, you will not gain any HP with 440cc injectors over stock 370cc's on a stock twin, stock ECU car. It will run rich and decrease hp as the stock fuel system was designed for around 400 crank hp.
Why would you make such an assumption that you need bigger injectors? Did you check the car with a wideband? First do that before you decided to just randomly upgrade a fuel system.
The only time I'd ever tell someone to waste their money on stock twins with bigger injectors, is if they are running stand alone, big cams with head work, or over 1.5 bar. If you got all that done, why are you still running stock twins?? haha
My car, stock twins, stock fuel, stock side mount, auto tranny. Wastegates shut, 20+psi.
First off, you will not gain any HP with 440cc injectors over stock 370cc's on a stock twin, stock ECU car. It will run rich and decrease hp as the stock fuel system was designed for around 400 crank hp.
Why would you make such an assumption that you need bigger injectors? Did you check the car with a wideband? First do that before you decided to just randomly upgrade a fuel system.
The only time I'd ever tell someone to waste their money on stock twins with bigger injectors, is if they are running stand alone, big cams with head work, or over 1.5 bar. If you got all that done, why are you still running stock twins?? haha
My car, stock twins, stock fuel, stock side mount, auto tranny. Wastegates shut, 20+psi.
Ric;956070 said:Please stop with the false information guys.
First off, you will not gain any HP with 440cc injectors over stock 370cc's on a stock twin, stock ECU car. It will run rich and decrease hp as the stock fuel system was designed for around 400 crank hp.
Why would you make such an assumption that you need bigger injectors? Did you check the car with a wideband? First do that before you decided to just randomly upgrade a fuel system.
The only time I'd ever tell someone to waste their money on stock twins with bigger injectors, is if they are running stand alone, big cams with head work, or over 1.5 bar. If you got all that done, why are you still running stock twins?? haha
My car, stock twins, stock fuel, stock side mount, auto tranny. Wastegates shut, 20+psi.
What information was false?? I agree that a fuel system upgrade is not necesarry at that level, but I don't think any comments said anything contrary to that.