One more

[stangstew]

I have a 95 GT 302 w/ ported GT40p heads, E303 cam, cobra intake, 65mm Tbody, 70mm maf, long tubes, and the some other small mods. I bought the car it had 24 pound injectors. What fuel pressure should i be running. I am having what sounds like ignition beak up or fuel delivery issues. it happens until about 3,000rpm and then clears up.

I have been told that the stock computer will not except 24 lbs injectors even if the maf is out of a car with 24 lbs. I am really debating putting 19s back in it.

Any advice or help would be greatly appreciated.

[Blackpony]

What maf do you have? Also your fp should be 40 lbs with the vacuum off. No more no less. so long as the maf is calibrated for the 24# then it should run ok, not great but ok.. Also what is your base timing set at?

[stangstew]

I just pulled the numbers on the maf. It says its out of a mark8 and is calibrated for 24s. I have the timing set at about 10 degrees BTDC

[Big A]

I just pulled the numbers on the maf. It says its out of a mark8 and is calibrated for 24s. I have the timing set at about 10 degrees BTDC

Perhaps the MAF isn't working with your stock ECU. I'd put a stock MAF and the 19lbers back in it, to make sure that it isn't something unrelated, if it runs smooth with the stock stuff on it, it's likely the MAF.

[stangstew]

Yeah thats what i was thinking about doing. I am really not sure i even need 24s. 19s will push everything im running wont it?

[Whiteboy]

I have a 95 GT 302 w/ ported GT40p heads, E303 cam, cobra intake, 65mm Tbody, 70mm maf, long tubes, and the some other small mods. I bought the car it had 24 pound injectors. What fuel pressure should i be running. I am having what sounds like ignition beak up or fuel delivery issues. it happens until about 3,000rpm and then clears up.

I have been told that the stock computer will not except 24 lbs injectors even if the maf is out of a car with 24 lbs. I am really debating putting 19s back in it.

Any advice or help would be greatly appreciated.

I've had alot of problems with the 94-95 dizzys. I've had to swap in msd units and clear up all the problems

[Blackpony]

I've had alot of problems with the 94-95 dizzys. I've had to swap in msd units and clear up all the problems

I have never used an msd unit personally, but have read way too many stories about the pickup units taking a crap after a few runs.

To the op, the mass air you have is not calibrated for 24# injectors. In those cars the computer compensates for the larger injector. I would suggest swapping to a set of 19# and stock mass air. They will be more then enough to support your power levels. I would venture to guess you are around 250ish at the tires. Also might try pulling the timing up to around 13-14 base timing, should help it run better once you swap out the injectors.

What is the fuel pressure set at?

[jnobles06]

I have never used an msd unit personally, but have read way too many stories about the pickup units taking a crap after a few runs.

To the op, the mass air you have is not calibrated for 24# injectors. In those cars the computer compensates for the larger injector. I would suggest swapping to a set of 19# and stock mass air. They will be more then enough to support your power levels. I would venture to guess you are around 250ish at the tires. Also might try pulling the timing up to around 13-14 base timing, should help it run better once you swap out the injectors.

What is the fuel pressure set at?

x2. just like a 95 cobra. it has 24lb injectors but it uses the same MAF as a gt. you could swap in a stock maf and a cobra computer if you want to keep the injectors, or just get a mail order tune.

[Vertnut]

I love my '95, but when the mods start coming, they can be really finicky.

[Denny]

A9L that bitch!

But ya, 19's are fine for your set-up.