my setup is in the sig, i am going tto dyno it naturally aspirated because i dont have the nitrous kit finished yet. i am hoping for 435rwhp out of it.
does anyone else have a prediction? wish me luck!!

 

Looks doable, depending on how much the converter eats and how good the tune is.

 

good luck with the dyno.

 

?????

 

wtf it put down 310hp and 290 tq. the guy said it was a really stingy dyno but seriously? this thing runs very good. but my afr averaged 15.2

the guy tthat runs it has a 2900 lb s10 that runs 11.4s and it dynod 321hp on the same dyno

 

pcmforless tuning???

 

sounds like something is wrong, 30lbs injectors with that cam and LE2 heads?

 

AFR looks way off. You need to post the graph. Torque is super low, converter cars usually spike ridiculously high numbers, unless they start the pull after the peak. Something doesn't seem right. Post the graph, or at least provide every detail you can think of. Your putting down bolt on numbers with a heads/cam, high compression 383, the dyno can't be off by that much. That A/F ratio is way way out of line.

The S10 data doesn't mean much, the trap speed would say a lot more about the dyno numbers and the actual power, 11.4's with 320rwhp might be really impressive if the traps were high, or more likely its a really light, super hard hooking truck, and a bit of dyno shop BS to make you feel better.

 

15.2 is way to lean at wot. you should have backed out of it and not finished the dyno session without a better tune. that's why i say tune in person not though the mail. they can give you a starting point but that's it. get to work on your tune and then go from there. good luck man and keep at it.

 

15.2 is way way off. I hope you didn't make more than one pull like that. Post up the sheet if you have it so we can see it. something isn't right.

 

i dont have much of a sheet to post up, we shut it down fast cause it was so lean. but it made 310 at 6k and the run started at 4700. i guess my injectors could be my problem. idk it runs very good though

 

it is a mad z28 tune and i also just have a ported 52mm throttle body on the car. but there is no way thats all the power im making, i murder my 2 friends bolt on lt1s from a roll. so idk wat is up with the numbers

 

willing to bet your ve tables are way far off or maybe he plugged in the wrong injector size.

 

Just by looking at ur sig I was gonna say under 400 for sure. I have seen way to many 383s put down under 400 and only a handful push over. So with that being said I predicted correct but that tune is FUkd and I bet the V.E tables and or injector sizing is messed up BAD.

 

Injector size is not the issue 30lbs will feed what you have.

 

sometimes my fuel pressure dips down around 36 lbs i thin, is that normal or does this mean my pump is bad? its a walboro

 

That is a problem, should be at the very least 43.5psi at WOT. That results in roughly a 9% reduction in effective injector size. I would say that is a piece of the problem but not the while thing.

 

I don't think mail order tunes are perfect, but I also know NO tuner can compensate for problems with your car.

The fuel pressure should not drop if the system is healthy your pump filter lines pressure regulator etc need to be verified. Because your fuel pressure should not drop like your does

 

i was affraid of that. could this be the regulator?
or is it for sure the pump?

 

Could be as simple as the electrical supply or ground for the pump. NOT likely the regulator.