Disappointing Dyno Results
Disappointing Dyno Results Had my Z28 dyno tuned the other day, kinda disappointed with the results...any ideas from the graph what might be up? It idles pretty good, runs smooth. And though I'm disappointed with the numbers, it ******* haulsss *** up top, so I'm content 
PRC Stage 1 LS6 Heads, 62cc's, 10.8:1 comp.
Torquer v2 232/234 .595 .598 112 LSA
LS6 Intake
Ported TB
PRC Duals/Tit Ret/7.35" PR's
Six Speed, stock clutch, stock rearend
160 T-Stat
Pacesetter Longtubes, Dumped after O/R Y
TR55's, MSD wires
MTI Lid, Stock MAF
42# injectors (he said they were a pain to tune?)
Racetronix pump/Hot wire
PRC Stage 1 LS6 Heads, 62cc's, 10.8:1 comp.
Torquer v2 232/234 .595 .598 112 LSA
LS6 Intake
Ported TB
PRC Duals/Tit Ret/7.35" PR's
Six Speed, stock clutch, stock rearend
160 T-Stat
Pacesetter Longtubes, Dumped after O/R Y
TR55's, MSD wires
MTI Lid, Stock MAF
42# injectors (he said they were a pain to tune?)
Racetronix pump/Hot wire
I don't know why he stopped that low, because he upped the limiter to 6500 like I asked. I think he was scared of breaking my car 
. But really I don't know why he did that.
. But really I don't know why he did that. Yea I definitely am happy with how it runs, not gonna get bent out of shape over twenty horses lol. Quick ?, what does SAE Smoothing: 5 mean? (top right corner of sheet)
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Yeah, I could possible see another <15hp & 15tq> out of that combo, especially since its a stock drivetrain thru an M6. Really good numbers nonetheless and all dynos are diffrent. Just curious, did you upgrade the oil pump,timing chain, lifters while in there? Fresh oil? Have you changed the rear fluid and tranny fluid at all?
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Ported oil pump, LS2 Timing chain, and LS7 lifters last year along with cam. Heads and intake are what I just did in the past few weeks. Fresh oil, fresh tranny fluid, didn't have time for the rearend but I will change that soon. I figure I'll do the free mods and maybe an UD pulley. Don't foresee the FAST in my future...but I'll likely go stroked six liter after I do my rearend and tranny/clutch 
Looks pretty good actually, with basic bolt ons + the the cam. I'd definitely spin it higher though, I have the same setup minus the heads and LT's - we spin that one to 6900rpm (LQ9 block).
that is not what I would call typical at all and no one should ever expect more than a 15rwhp gain over a ls6...a lot of people get more but it shouldn't be expected unless you like disappointment
It's a 6spd - what's up with the huge dip in torque there. Also, that thing is not even making 300hp until over 4000rpm, and your AFR doesn't look very steady there. Looks like there is more in the car with a better tune, and maybe a different cam would work out better for you.
Yea I've seen that dip before with the Torquer cam...not sure what it is. I might drive it this year then get one custom spec'd and install it next winter. We shall see
42slb injectors are not hard to tune and scale. Second Id atleast pull it to 6800 to see where it peaks to know where to shift at. IMHO Id find a tuner that knew what they were doing.