Something is obviously wrong, look into transmission slipping or if get a second dyno reading to be sure.
That power is close to what a hot 5.3L puts out.
As long as the a/f ratio is good, timing is good with no KR, the tune is probably good enough, cause like it was said, there isn't that much power left in the tune if it's close.
Did anything else change besides the engine?
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'94 Chevy Truck: 8.9 et, 408 twins
Wow I would think youd be making gobes of power.
2000 Silverado ECSB- 5.3 CAI, Pacesetter LTs, ORY- Pipe, Magnaflow XL, E-fan, Ported T/B , Nelson Tuned, Built 4l60e, Circle D Stall, 3.42s G80, 2-4 Drop, Hertz Highs, Rockford 501s
2004 Buell XB12s
Originally Posted by LamboDoNoMo
Also replaced the stock air box with the GMPP CAI and had to use the vette accessories since the truck accessories wouldn't clear the intake on the new motor.
try to upload the graph to photobucket or a site like it if the uploader on this site isnt working. it sounds like there is some weird stuff goin on.
01 Silverado
id say Gm overrated that motor. i do believe that rating is with no accesories. Also 12.4 is leaving a some ponies to be unspoken for. that combo should do around 380-400 realistically
2002 Lightning - GT headed 5.5Litre w/ Twin 7665s
2002 Silverado - 427Lsx w/ Twin gt4202s
2010 Silverado crewcab Z71 - 5.3litre w/ procharger
2000 Wrangler - 5.3litre with some stance
2014 Xsport- 3.5 Eco boost
412 Motorsports
it ain't that I'm too big to listen to the rumors, It's just that I'm too damn big to pay attention to 'em..That's the difference
Ya'll I was thinking that na motors performed best 12.8-13.2 sounds a little rich but still kinda weary of that trans, what gears do you have and tire size.
BB
Trans worries me to, but with less than 5k on it I had to take the chance. Isn't the 80 longer than the 4L60? I'm running 3.73 gears and 275/17s. Also, the 12.4 was a typo the dyno actually shows 12.14.
3rd shot at posting dyno
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