...... My Fox body LS1 got low hp please help me ?????
08-27-2009, 07:35 PM
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TECH Resident
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...... My Fox body LS1 got low hp please help me ????? I went to the dyno today, my first test didn't run good. A lot of carbon comes out of exhaust.
I got 178hp after that he told me go and check my fuel pressure or something else he actually didn't try to modify it. I checked the fuel presser it was 51psi. I don’t know how I can solve this problem!!! What do u think is the problem? The car is stock only headers, borted TB, Trans 700r4 that’s all
I got 178hp after that he told me go and check my fuel pressure or something else he actually didn't try to modify it. I checked the fuel presser it was 51psi. I don’t know how I can solve this problem!!! What do u think is the problem? The car is stock only headers, borted TB, Trans 700r4 that’s all
08-28-2009, 07:11 AM
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It seems very rich according to the dyno print. I don't know too much about how you guys control the fuel pressure on EFI LS engines but an adjustable fuel pressure regulator can do wonders. The A/F ratio needs to be around 12:5 to 13:1 for a naturally aspirated motor, which right now is 11:6 more suitable for forced induction. Hope this helps!
lol 
