*Official* L99 Dyno Thread

[Coops]

Juiced Motorsports did awesome job again, gpi vvt stage 1, zl1 fuel pump, 65lb injectors, kook headers, green cats, slp2300 super charger with 3.2 pulley 8psi boost and Slp cai

[SSammy]

4/10/2021 Dyno day at 187 Unlimited Performance with the local Holden group here in Utah.
2015 Camaro 2SS/RS A6
Mods: Scoop, CAI, Bo White St 2 PTB, LTs, HFCs, X-pipe, Axle Back, HP Tune by Dynosteve.

Dynojet - SAE corrected

[Chris49066SS]

H/C, bolt ons, stock cubes

[SSkat]

You are spinning the hell out of that thing! Great numbers.

[Chris49066SS]

Originally Posted by SSkat

You are spinning the hell out of that thing! Great numbers.

Thank you sir

[Ryshan]

Hello all, no dyno numbers from me just yet, but will be taking my 2014 Camaro L99 over to GPI to get it dyno-tuned. Beyond excited. Car will be getting their Rod-Mod and ported manifold along with the TB. TSP 1 7/8 LT's into Corsa's ZL1 catbat. *no cats* + RotoFab Intake

I'm hoping to make something near 400rwhp, which is a bit of a stretch but I've been seeing us 14/15 SS' seem to run just a tiny bit harder by a few ponies here and there. Anything in the 385+ range will make me happy. Does anyone have this same setup with a GPI tune that's willing to share their numbers? Looking at going with this "Max Effort FBO" type of build for a while before tossing in a cam. Debating between SS3 VVT and 4,

- Ry
#TeamGPI

[Nz2ssrs]

2011 ss l99 with longtube headers high flow cats, borla 2.5” cat backs and an over the radiator intake.

Hp seems down a little bit torque is up from most.
First test was all bolt ons no tune second was tuned. What do you think ?

[TooleyOnDeck]

Originally Posted by Nz2ssrs

2011 ss l99 with longtube headers high flow cats, borla 2.5” cat backs and an over the radiator intake.

Hp seems down a little bit torque is up from most.
First test was all bolt ons no tune second was tuned. What do you think ?

That does seem a bit low, 258kw is about 345whp. My stock 2015 L99 baselined at 355whp with no tune for reference (dyno sheet attached). I am right at sea level, but it doesn’t seem like it would make that drastic of a difference. I’m sure someone more knowledgeable will chime in.

[Bigdumogre]

Mods in sig

[CamaroCarl2012]

Finally got mine on the dyno. 2012 auto. Texas speed stage 2 cam, cam phaser limiter, new lifters, pushrods, valve springs, fast 102 lsxr intake, nick Williams 103mm throttle body, z/28 cold air intake, msd coils, fast fuel rails with stock injectors, 160 degree thermostat, billet triple disc 3200 stall converter. Bought a lot of the parts here on the forum classifieds.

[CamaroCarl2012]

Oh yeah, BBK 1 and 3/4 long tube headers, kooks full 3" dual exhaust, hi flo cats and mufflers.

[joshuaz28herring]

Originally Posted by Kylejames83

CAI intake, tsp 2.2 vvt cam with the springs and all, che trunion, tsp headers, magnaflow exhaust, circle d 3200 stall and 3.91 gears.

Did those gears help with roll races as much as a dig


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