I expected maybe 10 lb/ft of torque more(to hit the magic 500) but this was on a J39 program so I'm sure more power can be squeezed out of the chip. I am happy with the numbers and would rather be a little lower on power than on the edge. I am going to add the zex nitrous kit shortly and get re-dynoed. first time seeing cars dynoed up close, out of all the 20 + plus mustangs there nobody beat my numbers, the whole building was shaking when my truck was on there, I have sheet rock dust and bits all over it. I told him how to do it(they never dynoed a L before) overdrive off and hit it from 70, he was holding at 70 for a while then when he hit it everyone jumped back cause the noise, it spooled up the rollers pretty fast. great experience, I had fun.

 

sorry no A/F numbers, they used a tailpipe probe b/c the number of people there, so everyone ended up with 17.5 to 1

 

What do you have done to your truck?

 

JDM J39 chip, LFP 4 lb lower, full exhaust, Efan/cobra pump, CAI, valve body, ported stock throttle body & upper plenum, 160 degree thermo.

 

you guys think I should go for the 400/500 mark? or just be happy and wait for the zex kit? I think that extra 1 hp and 10lb/ft can be had if I go back to the J49 program I had, but I like the extra margain of safety running 94 octane on the J39 especially since I have no clue what my A/FR's are.. what other mods would push me over the edge? would a heat exchanger or one of the new heat spacers show any dyno gains?

 

Good numbers... what was your A/F ratio?

 

there were so many cars there that they didnt have time to hook up the wide band, or they didnt have one, they used a tail pipe probe so the numbers weren't accurate, I think it said something like 17.5 to 1 , but thats what every car that was dyno'd came out to as well.

 

anyone have input on what will push me over 400/500?

 

Put the stock water pump and airbox back on...

 

I have the same as you except mine was dynoed with a PSP chip and my numbers where 430/540. No port work, I had a BaBolt TB on a PSP FastAir filter kit, JDM Long Tubes w/ hi-flow cats and Bassani, JDM electric fan kit w/Cobra pump, JDM Heat Exchangerand PSP Lower 4 lber

 

Well, some guys smirk at 'it' but I got into the 400/500 club by adding a Plasma Booster and a REM intake pipe along with a Navigator fuel filter--while dynoing on F1s with 42,000 miles on them.......................added to my 5 lber, chip, CAI, 160* 'stat, th/body, RP #11 Racing oil, etc.

Dan

 

I have no doubt that a more aggressive chip reburn easily get me the little power I need to break over 400/500. but I kinda want to keep my chip program extra extra safe. you have the heat exchanger, which I was going to get. I dont think that it would show gains on the dyno though, maybe less of a drop off between back to back runs. so your 30hp and 50lbft are basically from a more aggressive tune. what were the temps during your dyno gator?

 

Not to be a ***** but a good portion of that 30+ hp and 50+ torque is the fact that those are STD dyno numbers and not SAE corrected. Not exactly an apples-to-apples comparison.

STD usually results in readings 2% to 4% higher than SAE because the dyno software adjusts the readings to what power would be were the temperature 60 degrees and the absolute barometric pressure 29.92 inches. These conditions exist on cool days at sea level. SAE is the calculated power at 77 degrees and 29.23 inches.

 

what is the thing on my dyno sheet that say correction factor .96 SAE?

 

No need to be a *****, thats why I posted it, for all to see that it is in fact STD

And it is a very conserative tune from Sal