[93hatch]

switched to my gt40ps and trickflow stage 1 cam car revs really good when in neutral but under load it seems kinda rough, and lacking the power it should have, any suggestions? i think i need a adjustable fpr

[e3sean]

i have one for sale 50.00 plus shipping lol

[Darrell]

Originally Posted by 93hatch switched to my gt40ps and trickflow stage 1 cam car revs really good when in neutral but under load it seems kinda rough, and lacking the power it should have, any suggestions? i think i need a adjustable fpr

Adjusting fuel pressure will do nothing for this problem. Check to make sure the firing order is right. Also check the timing and make sure the spout is out when you check it. I'd set the timing to 14 or 15 degrees and see how it runs. Is the cam timing correct? Are there any vacuum leaks?

[93hatch]

im almost positive the cam timings correct, my friend set my timing to 12 degrees too, revs up fine and sounds good in neutral just kinda rough otherwise

[Sleeper_Stang_89]

Its not misfiring is it? fouled plug... arched plug wire?

[93hatch]

Originally Posted by Sleeper_Stang_89 Its not misfiring is it? fouled plug... arched plug wire?

sounds like its missfiring, im gona replace the plugs next i think, put an 89 ecu in it today to see if it was the cobra one resisting the cam, no change

[White Thunder]

process of elimination is the only way bro

[Sleeper_Stang_89]

I had sort of the same type of problem mine ended up being... on one of the plug wires i didnt bend it like I was supposed to and it just touched a hot header... also my dizzy cap was bad... I took it to my tuner after I replaced the plug wire and he put it on the dyno and done his thing... I ended up having to leave it overnight and he stayed after hours fixing my problem... he ended up replacing my dizzy cap with his spare shop one and mine has run soo damn good since then... I initially thought vacuum leak though...

[93hatch]

^thanks man, im starting to think its something ignition related, ill go look at my cap an dmake sure my wires arent touching anything

[Darrell]

Originally Posted by 93hatch sounds like its missfiring, im gona replace the plugs next i think, put an 89 ecu in it today to see if it was the cobra one resisting the cam, no change

What injectors are in it?

[e3sean]

24lb

[Darrell]

And is the mass air meter from a Cobra or designed for a Cobra?

[e3sean]

it is from a cobra

[93hatch]

cobra maf now and 24lb injectors with the 89 computer, just put a new cap and rotor it seems to have helped a bit, my friends gona do the plugs tomorrow and bump the timing from 12 to 14 degrees

[93hatch]

if that doesnt work i think im gona buy a pro-m maf for the 24lb injectors

[93HatchsBFF]

Yeah i did the spark plugs yesterday gapped the .44
and did the time to 14 degrees anymore i think it will start detonating.
i took it out after it still sputter a lil bit but still lacking the power but when im at a stop it smells bad like it's just dumping fuel into the block and it's going threw gas like crazy so i think it's running rich cuz of the cobra MAF in it Bcuz it doesn't have a meter in it?

[Bigfatts]

And is the mass air meter from a Cobra or designed for a Cobra?

Would that make a difference?

Have you looked at the distributor itself? I had a similar problem and ended up replacing my coil/wires/cap and rotor/plugs just to find out it was the distributor. The magnetic pickup was just rattling around inside it. Looked and felt fine when we took the cap off and checked it but when we got it out parts started rattling and falling out. Replaced it and the car runs awesome.

[Darrell]

Originally Posted by Bigfatts Would that make a difference?

Yes. The Cobras calibrate the injector size the correct way......in the computer. The mass air isn't "calibrated" for 24lb injectors, the computer is. If you have a Cobra computer and are using a mass air meter that is calibrated for 24lb injectors for an A9L or equivalent computer you will possibly run into driveability issues. The same applies if you use an A9L or equivalent computer with a Cobra mass air meter and 24lb injectors.

[Bigfatts]

Thanx Darrell, guess I need a Cobra computer for that MAF I picked up then.

[e3sean]

when i rode in it it just seemed to be really laggy like it wasnt getting proper fuel.