*Official* LS3 Dyno Thread

[Grave_bait_ss]

Help reading this please. I posted in the wrong thread first time….. being trash talked by a person who knows everything. (The trash talking was from another page not this forum at all) Please decipher this for me.

[rabbs88]

You made a peak of 446.2 HP and 458.5 lb-ft

[George-CZ]

Originally Posted by Grave_bait_ss

Help reading this please. I posted in the wrong thread first time….. being trash talked by a person who knows everything. (The trash talking was from another page not this forum at all) Please decipher this for me.

As already written.
446.2 HP and 458.5 lb-ft
What are your upgrades?

[Grave_bait_ss]

Originally Posted by rabbs88

You made a peak of 446.2 HP and 458.5 lb-ft

Ok i read that and thought that was what the legit rwhp is. Just wanted to be sure that is what i would say.
I will attach the rest of my other post.




Hey all. I have a dyno sheet and i’m not sure how to accurately read it……. Any help would be appreciated. (I’m assuming i would take the median hp and median torque and that's what my rwh would be?).

I’m getting basically singled out…. Person can’t show the dyno papers, just goes by what the shop read from the paper. (I don’t know anyone who doesn’t get nor doesn’t want the papers) claims to have 470rw on an l99 auto and does 11’s (not saying it can’t. Has all kinds of mods so i was thinking it should have more than that in hp running 11s in a 1/4)

I just wanted to be clear on the facts of what my real HO/TQ is before I questioned buddy on what he was claiming.

Mods edited - i didn’t build the car. It was sold to me with a cam(don’t know what type, stage 1 i presume and what else aside from that no REAL idea) It has long tubes and borla attack exhaust with high flow cats. Has track one aftermarket adjustable coil overs, niche wheels 275/40 20’s on the front and 315/45 20 on the rears. It had 4.10 gears (which have since exploded a diff but left the gears unharmed, other than the pinion gear, splayed the case and broke the back cover). Now it has stock 3.45 back in it because i had to buy a used diff for an ss. (Good luck getting anything car part related in canada for a camaro) I have n aftermarket cold air intake. I think that is all i’m remembering at this moment.

Guy did not treat the car well and dumped it after he put it sideways into a curb. Bad enough he had to get a new wheel. Imm having some other drivetrain issues with the car now. I believe driveshaft related….. tha ks for the help this far everyone.

Thanks in advance.

[Tompar]

91 octane tune from Pat G. 529rwhp left after WCF.
No 1/4 mile pass made yet.

[WHAMMO]

Originally Posted by WHAMMO

Made 568rwhp/445rwtq N/A stock cubes. WCF numbers. On 91oct.


LLSR 239/253 720' 702' cam, T&D 1.8 adj rockers, Goertz1 intake manifold/102mm BBK TB, EWP, short belt, FED TFS 262cc program 67cc chambers heads, 11.33:1 CR, 3'' SW headers with HFC, stock H pipe and NPP, Vararam drx, Spec Mini twin clutch, PAC 1209x, Isky Red zone solid linked lifters, Cometic .040 HG, ZL1 injectors, Pat G remote EFIlive tune.

Never did an update.


Old dyno rpm signal was skewed. Since then,I added full 3'' exhaust, Z28 mufflers and RPS twin carbon clutch.


-605rwhp/478rwtq. Same dyno, no rpm bug. A/C belt removed,thru Air filter, 91oct, no special fuel.

[WHAMMO]

Originally Posted by Tompar

91 octane tune from Pat G. 529rwhp left after WCF.
No 1/4 mile pass made yet.

Nice numbers brother. A well put together combo!

[sirnixalot]

Hey guys, I did alot of reading on here to piece together the LS3 combo I swapped into my 370z so I figured I'd at least register to contribute my numbers. More or less its no different from any other manual 5th gen Camaro, except for the diff ratio.

It's a SBE 2011 Camaro LS3 and TR6060 with the stock Z rear diff and 3.69 rear gears.

4" intake
Stock intake manifold and throttle body
Sikky mid length swap headers 1 7/8" primaries, 3" collector
Custom dual 3" exhaust, X pipe and a Magnaflow muffler p/n 12599
Summit SUM-8711R1 cam
Summit SUM-1457401 pushrods
BTR dual valve springs, titanium retainers and shaft rocker kit with the stock rocker arms
Haltech Elite 2500 (Wiring specialties pnp harness)
ID1300 injectors & walbro 525 pump

Self tuned on the Haltech I got 454whp and 412wtq on a Mustang dyno with 89-92*F IAT's. This is on both pump 93 and VP C85. I didn't see enough gain with adding any more timing (1-2hp for an additional 1*) on the ethanol so left I it alone. 24* between 4-5k and ramping to 26.5 at 6500rpm is where it was happiest and 12.8-12.9AFRs throughout the pull.

The spicier curve is a progressive dry shot from an NX throttle plate with a single 0.062" jet, kept the AFR's at 12.7-12.8 and pulled 4* on ethanol and 6* on pump. Shout out to Haltech for the flex fuel nitrous capability, it's pretty cool.

I've since converted the NX plate to dual feed config with two 0.052" jets but haven't gone back to tune it/get a number.

[Batmanntexas]

Originally Posted by sirnixalot

Hey guys, I did alot of reading on here to piece together the LS3 combo I swapped into my 370z so I figured I'd at least register to contribute my numbers. More or less its no different from any other manual 5th gen Camaro, except for the diff ratio.

It's a SBE 2011 Camaro LS3 and TR6060 with the stock Z rear diff and 3.69 rear gears.

4" intake
Stock intake manifold and throttle body
Sikky mid length swap headers 1 7/8" primaries, 3" collector
Custom dual 3" exhaust, X pipe and a Magnaflow muffler p/n 12599
Summit SUM-8711R1 cam
Summit SUM-1457401 pushrods
BTR dual valve springs, titanium retainers and shaft rocker kit with the stock rocker arms
Haltech Elite 2500 (Wiring specialties pnp harness)
ID1300 injectors & walbro 525 pump

Self tuned on the Haltech I got 454whp and 412wtq on a Mustang dyno with 89-92*F IAT's. This is on both pump 93 and VP C85. I didn't see enough gain with adding any more timing (1-2hp for an additional 1*) on the ethanol so left I it alone. 24* between 4-5k and ramping to 26.5 at 6500rpm is where it was happiest and 12.8-12.9AFRs throughout the pull.

The spicier curve is a progressive dry shot from an NX throttle plate with a single 0.062" jet, kept the AFR's at 12.7-12.8 and pulled 4* on ethanol and 6* on pump. Shout out to Haltech for the flex fuel nitrous capability, it's pretty cool.

I've since converted the NX plate to dual feed config with two 0.052" jets but haven't gone back to tune it/get a number.

I bet this car is a blast to drive!! Post a few pics if you have them. Solid numbers, also!!

[sirnixalot]

It is a blast to drive for sure, even though it was making more power twin turbo before (couldnt keep the heads down on the Nissan engine) the V8 NA power delivery is way different.

Here it is in drag trim a few years ago, it's been in project car mode since then so the paint has suffered.


This was one of the earlier nitrous test hits, I think it was an 0.041 jet. But it does let you hear how the cam sounds at idle at least.

I may as well add to the Frankenstein list. DrTunemall remote tuned my best friends LS swapped 1996 RX7 on the same dyno about a week after. 477whp and 474wtq.

TSP 418CI LS3 with their F35 cam, CNC PRC heads and 10:1 CR
T56 transmission & Ford 8.8 IRS 3.55 ratio rear diff conversion
Hinson super cars swap subframe/radiator/intake
4" intake, 90mm throttle body and stock LS3 intake manifold
Custom 1.75" primary 3" collector headers
3" Y to single 3.5" exhaust
Holley Terminator X, I think 80lb injectors and an aeromotive 340lph pump

For science I did compare our lowest NA numbers (hot engine and intake temps). The runs were done a week apart but virtually identical conditions, low-mind 90s ambient temps and all of the humidity.

His car needs larger diameter primary headers and we both need hiram's and 103mm throttle bodies. I doubt he will upgrade the intake since it wont fit under the stock hood.

We're waiting to reschedule to get the nitrous tuned on his car so once we get those I'll post up. He has a thinner NOS plate that we drilled the passage out a bit more to get it to flow enough to support a 0.071" jet. The plates max flow in stock form was only what 0.062" jet could do.