LS3 RWHP Dyno Question - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

GK_2012_SS · 01-26-2020, 09:27 AM

Hey guys, a couple of questions regarding LS3 RWHP Dyno numbers.

What would RWHP typically be for an SS LS3 Stock? Seems like I have seen 373-383 RWHP.

Also, what would RWHP typically be for the same SS LS3 with long tube headers, HF cats, X-pipe, cold air intake, and tune? This is where I have seen a lot of variation regarding numbers. With this setup (see mods below), the dyno report from my tuner showed max Torque 439, and Max HP 438. Does that seem accurate?

I realize different dyno's and temp makes a difference, thanks for the input.

bkevind · 01-26-2020, 09:58 AM

Mine had weird numbers on a dynapack. 383 / 385 (give or take a couple) with CAI, 417/418 after LTH and tune.

Numbers aren't 100% accurate but pretty close. Can't find the darn print out anywhere...

I did ask for a tune for the track, with more average power than peak in mind, but that doesn't really explain the baseline run which was CAI + a remote tune, the follow up LTH was tuned on the road and dynapack by Aikman.

Vegas Bound · 01-26-2020, 10:39 AM

Mustang dynos read less than Dynojet. Bone stock on a Dynojet in the dead of winter, my LS3 was 355 hp. As the 2013 was the first year with electric power steering assist, I would imagine 2013 hp would be slightly higher than 2012 with a power steering pump.

Greenhornet2 · 01-26-2020, 11:19 AM

To see a true gain you would have to run a baseline, then mod and run it again on the same exact dyno. Take the numbers with a grain of salt, they are a tool to measure gains. The number can't fluctuate a LOT between dynos. Mine ran 575 at jannetty, then a few months later i did a dyno day more to hang out with ppl at slowhawk, his mustang dyno showed 595hp and 5 less torque and everyone says mustang dynos read lower. Grain of salt.

Yellow 1 · 01-26-2020, 02:56 PM

Figures seem reasonable; I'd say that's about right.

BAH2SS · 01-26-2020, 08:40 PM

I made 410 whp with drop in air filter and cat delete.

My friend made 410 whp with airaid cai, pacesetter 1 3/4 LT headers and x pipe

Mine is 1LE his is not and he put 2 cars lengths on me.

Both same tuner same dyno and he tuned in a better weather condition.

lemontwist · 02-13-2020, 10:09 PM

i'm going to point at the elephant in the room,mustang is just a bad choice of a name for something used to measure power..

sscamaro · 02-14-2020, 11:14 AM

In September of 2009 after Kooks LT headers, hi flow cats, ported intake, Rotofab CI and dyno tune on a DynoJet, RW/HP was 414 and RW/TQ was 406. In 2010 after S/C on same dyno readings were RW/HP 546 and RW/TQ 521 with 11# boost.

Avenging Orange · 02-14-2020, 12:54 PM

Every vehicle will respond differently to a tune. Numbers will be what they will. Whats more important is that a competent tuner gets the most out of your tune.

01-26-2020, 09:27 AM	#1
GK_2012_SS Drives: 2012 Camaro LS3 2SS Join Date: Oct 2018 Location: Missouri Posts: 60	LS3 RWHP Dyno Question Hey guys, a couple of questions regarding LS3 RWHP Dyno numbers. What would RWHP typically be for an SS LS3 Stock? Seems like I have seen 373-383 RWHP. Also, what would RWHP typically be for the same SS LS3 with long tube headers, HF cats, X-pipe, cold air intake, and tune? This is where I have seen a lot of variation regarding numbers. With this setup (see mods below), the dyno report from my tuner showed max Torque 439, and Max HP 438. Does that seem accurate? I realize different dyno's and temp makes a difference, thanks for the input. Attached Images __________________ Z/28 Cold Air Intake; ARH 1 7/8 Long Tube Headers, High-flow Cats, X-Pipe; Borla ATAK; 160 Deg. Thermostat; Craven Tune

01-26-2020, 09:58 AM	#2
bkevind Drives: 2013 2SS RS 1LE Join Date: Aug 2016 Location: Austin Posts: 555 View My Garage	Mine had weird numbers on a dynapack. 383 / 385 (give or take a couple) with CAI, 417/418 after LTH and tune. Numbers aren't 100% accurate but pretty close. Can't find the darn print out anywhere... I did ask for a tune for the track, with more average power than peak in mind, but that doesn't really explain the baseline run which was CAI + a remote tune, the follow up LTH was tuned on the road and dynapack by Aikman. __________________ 468, Mishimoto rad + oil cooler, TSP LTH MCS 2WNR CTSV/ZL1 front calipers/rotors + G-Loc Forgestar CF-5 19x11

01-26-2020, 11:19 AM	#4
Greenhornet2 Drives: 2011 Camaro 2SS LS3 Whipple Join Date: May 2019 Location: Connecticut Posts: 1,925	To see a true gain you would have to run a baseline, then mod and run it again on the same exact dyno. Take the numbers with a grain of salt, they are a tool to measure gains. The number can't fluctuate a LOT between dynos. Mine ran 575 at jannetty, then a few months later i did a dyno day more to hang out with ppl at slowhawk, his mustang dyno showed 595hp and 5 less torque and everyone says mustang dynos read lower. Grain of salt. __________________ Whipple 2.9 CAI ID1050x injectors ZL1 Pump JRE FPCM JMS Voltage booster JRE Rough Idle blower cam BTR .660 springs CHE trunnion kit 1 7/8 Speed Engineering Borla Atak JRE scoop 1.5" lowering springs BMR trailing arms and toe links Cradle inserts 704WHP 603WTQ 93 octane

01-26-2020, 02:56 PM	#5
Yellow 1 Grumpy Grey-haired Guy Drives: Camaro, Corvette & Merc C300(daily) Join Date: Aug 2014 Location: South Warwickshire, UK. Posts: 806 View My Garage	Figures seem reasonable; I'd say that's about right. __________________ ---------------------------------------------------------

01-26-2020, 08:40 PM	#6
BAH2SS Stigs Bahraini Cousin Drives: 2015 Camaro 2SS 1LE Join Date: Oct 2018 Location: Bahrain Posts: 222 View My Garage	I made 410 whp with drop in air filter and cat delete. My friend made 410 whp with airaid cai, pacesetter 1 3/4 LT headers and x pipe Mine is 1LE his is not and he put 2 cars lengths on me. Both same tuner same dyno and he tuned in a better weather condition. __________________ 2015 CAMARO 1LE

01-26-2020, 10:39 AM	#3
Vegas Bound Account Suspended Drives: 2013 Sparkly Red One Join Date: Dec 2018 Location: Hospitality State Posts: 2,558	Mustang dynos read less than Dynojet. Bone stock on a Dynojet in the dead of winter, my LS3 was 355 hp. As the 2013 was the first year with electric power steering assist, I would imagine 2013 hp would be slightly higher than 2012 with a power steering pump.

02-13-2020, 10:09 PM	#7
lemontwist Drives: 12 2SS/RS L99,11 2SS/RS LS3totaled Join Date: Jun 2019 Location: mooresville nc Posts: 1,048	i'm going to point at the elephant in the room,mustang is just a bad choice of a name for something used to measure power..

02-14-2020, 11:14 AM	#8
sscamaro Drives: 2010 2SS, 2017 Silverado LTZ Join Date: Jan 2007 Location: Denver,PA Posts: 3,195 View My Garage	In September of 2009 after Kooks LT headers, hi flow cats, ported intake, Rotofab CI and dyno tune on a DynoJet, RW/HP was 414 and RW/TQ was 406. In 2010 after S/C on same dyno readings were RW/HP 546 and RW/TQ 521 with 11# boost. __________________ 2010 2SS/RS Victory Red, MN6, 1-7/8 Kooks LT Headers, SLP Axle Back, Edelbrock E-Force S/C, ZL1 Fuel Pump, 72# Injectors, JRE fuel rail upgrade, Roto-Fab CAI, Elite Catch Can, Billet Hurst Shifter, DSS 1000HP axles, Spohn Trailing Arms, Toe Links, Lower Control Arms. Chrome American Racing Torq-Thrust wheels. 546/rwhp & 522/rwtq & 10.9# boost Tune by Jeremy Formato.

02-14-2020, 12:54 PM	#9
Avenging Orange Drives: 2010 Inferno Orange 2SS/RS Join Date: Apr 2010 Location: Clermont, IN Posts: 3,297	Every vehicle will respond differently to a tune. Numbers will be what they will. Whats more important is that a competent tuner gets the most out of your tune. __________________ 2010 Inferno Orange 2SS/RS M6 Black Leather, Sun Roof, OBX Headers, Borla touring axle back, Cold Air Inductions CAI , non synthetic fluids, BMR total bushing upgrade/1" lowering springs, DSE 32mm rear sway bar. GM fe4 shocks/struts/LCA's, AAM 3.91 diff, Vertini RFS1.8 20x9 +30. Conti ExtremeContact Sport 275/35/20. sjm autoprod ABL dash kit. Mike Norris tuned 413/419. Avenging Orange: 43 years of not buying into the Hype........and damn proud of it!! https://youtu.be/9JD9it6SmB8 https://youtu.be/xmelTlEzI34 KICKING CANCERS ASS SINCE 2015!!