i have a 94 383 with lt4 heads , intake, hotcam, 1.6 rr, tpis full length headers, 10 psi SC , 36 lb injectors, crane ign with boost retard.

i am having a very hard time tuning this setup. any one have any good tips on tuning. i have tries maf table adjustments, ve table adjustments, open loop ,closed loop and still cant seem to get it right. i seem to have tried all kinds of ombos and cant get it right so i thought i would start from scratch. if anyone has a similar combo chime in and give me a hand...thank you , i really want to start driving this thing, it has been down for two years on the build up now i still cant drive it.

 

Are you tuning it on the dyno with WB O2? With a 383 and if you are seeing 10#, then your 36#/hr is highly not sufficient. Even if you have a FMU, you will not be able to make it. I would definitely throw it on the dyno so you can follow the A/F and maybe misfires and other parameters while you are running the car. The benefit is that if you see the A/F going pass 14 you can stop right away and not blow anything.

I would definitely consider getting some bigger injectors especially if you are hitting around 500rwhp.

Make sure you check out

http://para.noid.org/~lj/PCM%20Tutorial/PCMtutorial.htm

http://www.caspeed.com/lt1/index.html Allen has a sample of his LT1 file for his SC 383.

http://www3.baylor.edu/~Christopher_...ht/LT1Edit.htm

good luck

 

It would help to know what is doing. As "oldsalt" suggested, your injectors do seem small.

Rich Krause

 

VERY SMALL!!!!