hello
i have a 302 with twin turbos on it
when i hit the throttle it bogs down like it has to much fuel
i have the timming set at 10 degres and fuel pressure at 38psi
has 36lbs injectors
if anyone has any ideas pls answer
thanks
302
9.5-1 comp
e3o3 cam
75mm tb
gt40 heads
explorer 5.0 intake
36 lbs injectors
75mm maf
turbos has internal waste gates
new tps sensor

 

what are the afr's, when this happens? do you have any way of logging it?

 

Have you had it to a dyno?

 

morning my afr,s are 15 -18 at idle

 

Ok I assume that by saying "morining" that this is during warmup, if then 15-18 is way to lean. Most engines like to idle a little rich even when warm, so during warm up it is not uncommon to have afr's in the 11-12.7 range. This bog is it just reving it up from idle or drving light load tip in?

 

Well for one your fuel pressure should be at 39.5 with Vac off. Not that it's a huge differance..

I also agree with 95SRT about rich at start up. Need more info on when this is happening....

 

one word-------datalog------godsent of standalone ECU's

 

Pull the timing chip and store it somewhere, bupm the timing up to 20* BTDC and leave it there locked. Try the car.
E cam also sucks, it has too much overlap for a turbo car. I'm too tired to look up the valve events, but you'd be better off with a stock cam and 1.7 rockers.
Can you give more details of your problems and when they arose?
SS