terry i need your opinion

[CJLightning04]

Ok i got my truck dynoed for the first time today. It was on a dynojet here are the numbers

1st 352.6 HP 460.5 TQ

2nd 357.6 HP 471.2 TQ

does this sound right to you? I thought it would be at least 390.

Also i ran my race tune for the first time last night and i ran a 13.2 3 times in a row so i switched to the warm tune and ran another 13.2.

I have managed to run a 12.9 but it was about 40* outside.

Is there something wrong maybe??

[99WhiteBeast]

In this heat your numbers are probably off by 35 to 45 HP IMO

[Mark #2]

In this heat your numbers are probably off by 35 to 45 HP IMO

Agree especially with the high humidity today, both kill HP, maybe even more than Steve stated.

[L8 APEX]

If you only have a chip and 4# type setup those times are in line. Most stock trucks are running high 8's and high 13's in this weather. 12 anything with a pulley and tune is a good feat. I wouldn't sweat dyno numbers they fluxuate 40+ depending on weather and locations..
If it stumbles, bangs, smokes, or dies I would be concerned.

[CJLightning04]

you put the 6# and you tuned the truck with a SCT tuner

[L8 APEX]

you put the 6# and you tuned the truck with a SCT tuner
It is still just a tune and pulley, no headers, nitrous, or aftermarket supercharger etc. As long as you are changing the tunes correctly and using the correct fuel that I all I can guess over the internet. Make sure the IC pump is circulating etc..

[True Blue Aggie]

Can you post all of your mods? That would help with the discussion. :tu:

[CJLightning04]

CAI, 6#, Exhuast, SCT tuned, tr6

[03LightningRocks]

CAI, 6#, Exhuast, SCT tuned, tr6

Your times are pretty darned good for the mods you have. I don't know that I would place too much merit in dyno numbers. 1/4 mile times are the true measure of how fast your truck is.

[True Blue Aggie]

When you were at the track, how were your 60 ft. times? Do you have traction bars?

[CJLightning04]

i cut 1.8's all day long i have traction bars and slicks.

I ran a 12.9 with a 2.0 60' on my 20" rims

[WA 2 FST]

CAI, 6#, Exhuast, SCT tuned, tr6

I think it sounds about right. Mine with CAI, 4#, SCT tune, TR6, Magnaflow cat-back, FTVB and LFP heat exchanger ran 12.8 @ 109 on drag radials... but the temps were 45^F. In the air you ran in the other night, mine wouldn't have been any better than low-13s either.

I agree with the others about the dyno #s.

[True Blue Aggie]

Its light, but probably safe.

For reference, I ran 6# with slicks and bars to a best of 12.37 at 109 on race fuel. Typically when it was hot, I would average 12.60's. Since then, I picked up the SCT2, and ran a better 12.32 with 18deg of timing...

[CJLightning04]

Like have been trying to get at... my truck should be in the high 12's consistenly.

[True Blue Aggie]

Just understand that every truck is different. I would say post up or find out what your Air/Fuel mix was on the dyno pulls and go from there. I was always able to set my A/F to run about 11.2 to 11.5, and run without worry....

Terry will fix you up if it needs it though....

[Moonshine]

What kind of trap speeds are you turning? Based on your mods and your 60' times I'm kinda' wondering if maybe it's launch technique rather than a lack of power that's putting you into the 13's.

[CJLightning04]

when i ran the 12.9 when it was below 40* i had a 105 trap and that time i had a 2.0 60'

when i ran the 13.2 i had a 1.8 60' and a 102 trap

[CJLightning04]

Terry if i brought the truck to you. Would you look at my tune and see if there is anything you could do with it. If so pm me a price