430rwhp!!!#??? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

judkins75 · 05-25-2020, 04:39 PM

My current set up on my 2014 Camaro ss Ls3 Kooks long tube headers, Kooks hfc, Cai intake and scoop. My question is. How many crank HP is pushing out with 430rwhp dynoed at the wheels. Thank you all for your response. Just curious. .

InFiD3ViL · 05-25-2020, 04:48 PM

Calculated at the generally accepted 15% for a manual, around 495 crank.

pyroguy · 05-25-2020, 07:58 PM

Why do you care about crank hp? It's just an estimate where wheel horsepower is an actual measured number.

Camaro2ss2010 · 05-25-2020, 08:30 PM

Quote:

Originally Posted by pyroguy

Why do you care about crank hp? It's just an estimate where wheel horsepower is an actual measured number.

Curiosity kills the cat

Tony Camaro · 05-25-2020, 11:05 PM

You can always get a good estimate by dividing WHP by .8 if it's an auto or by .85 if it's a manual.

InFiD3ViL · 05-26-2020, 12:18 AM

Quote:

Originally Posted by Tony Camaro

You can always get a good estimate by dividing WHP by .8 if it's an auto or by .85 if it's a manual.

I knew my estimate was off by a bit.

Modernmusclecar · 05-26-2020, 08:54 AM

430 whp seems a bit high.

J Rod · 05-27-2020, 09:45 AM

Quote:

Originally Posted by Modernmusclecar

430 whp seems a bit high.

Not too crazy for a 14-15 LS3, I hit 425 with bolt ons.

xc_SS/RS · 05-27-2020, 11:53 AM

Quote:

Originally Posted by Modernmusclecar

430 whp seems a bit high.

I know a guy who hit 460ish rwhp with two different stock cam and heads LS3. 430 is pretty normal

Camaro2ss2010 · 05-27-2020, 12:48 PM

Quote:

Originally Posted by Modernmusclecar

430 whp seems a bit high.

I was a little over 430 with the same mods and no cats before I had my cam and other mods.

Spec · 05-27-2020, 04:36 PM

1/.85 = 1.1765 (rounded up)

1.1765 x 430rwhp ... so appx 506hp

The increase due to the increase in air/oxygen-flow and fuel.

Is that right? Because now people are going to say they have a 500+ horsepower car lol

Mine's settled at 426rwhp for now with bolt-ons and a tune...

daktah · 05-27-2020, 07:19 PM

well a 10 second glance at a handful of reported stock dynos, ls3+m6 averages around 370-375ish and l99+a6 averages around 325-330ish. so you can figure the loss factors as 12% for the m6 (426bhp÷375whp) and 18% for the a6 (400bhp÷330whp) with fair accuracy.
so you can assume to have roundabout 482bhp with a stick (430whp*1.12 aka 12%), without taking into account whatever error and variation your particular dyno will have.

also 12% loss is insanely good, i dont know if gm underrated the ls3 by a few horses or the 6060 is just THAT efficient somehow.

Warship2k15 · 05-27-2020, 07:20 PM

Rwhp is only a number.On one dyno the same car could be at 370-380.
In my opinion they should only be used for comparison from before and after etc or if lots of people are using the same dyno you could compare your car to another with the exact same mods to see if you have any problems.
Other then that they should be taken with a grain of salt.

_Onyx_Wolf_ · 05-28-2020, 02:33 PM

Quote:

Originally Posted by Tony Camaro

You can always get a good estimate by dividing WHP by .8 if it's an auto or by .85 if it's a manual.

A manual will make more power so I think you have it flipped.

05-25-2020, 04:39 PM	#1
judkins75 Silver Shark Drives: 2014 2SS GM Npp 6 speed manual Join Date: Nov 2014 Location: Wyoming Posts: 131 View My Garage	430rwhp!!!#??? My current set up on my 2014 Camaro ss Ls3 Kooks long tube headers, Kooks hfc, Cai intake and scoop. My question is. How many crank HP is pushing out with 430rwhp dynoed at the wheels. Thank you all for your response. Just curious. . __________________ Silver Shark2010,2011 Z28 black gloss replica wheels, 285/305 tires, BMR Strut brace,Kooks lt headers/hfc, CAI cold air intake/air scoop

05-25-2020, 04:48 PM	#2
InFiD3ViL Drives: 2010 CGM 2SS/RS LS3 Swapped A6 Join Date: Sep 2016 Location: Spring Hill, FL Posts: 4,586	Calculated at the generally accepted 15% for a manual, around 495 crank. __________________ 2010 CGM Camaro 2SS LS3 Swapped A6 - GPI LS3 SS1 .647/.638, (224/237, 112 +4, 7º overlap) on CamMotion 8620 core, BTR Platinum .660" Dual Spring kit w/titanium retainers, CHE bronze trunnion upgrade, stock heads milled @ .015, Melling HV 10296 oil pump, TSP 1-7/8" long tube headers (W/Catless Off-road Pipes), Corsa Xtreme 3" Catback, GPI Ported/Rod Mod Intake, Stage 2 Ported Throttle Body, Vararam OTR CAI, Mike Norris Gen 2 catch can + GM 1LE clean side separator, 160º thermostat - Megan Racing adjustable coilovers (lowered 1.75"), MRR M017 10/11" wheels-Tuned by Ryan @ GPI

05-25-2020, 07:58 PM	#3
pyroguy Started#gottalovethatblue Drives: ABM #831 Join Date: Apr 2013 Location: TN Posts: 6,941 View My Garage	Why do you care about crank hp? It's just an estimate where wheel horsepower is an actual measured number. __________________ '10 Camaro 2SS/RS \| Aqua Blue #831 of 3,903 \| Silver Stripes Check out my build thread

05-27-2020, 07:19 PM	#12
daktah Drives: 2013 camaro 2ss 1le Join Date: May 2020 Location: las vegas Posts: 58	well a 10 second glance at a handful of reported stock dynos, ls3+m6 averages around 370-375ish and l99+a6 averages around 325-330ish. so you can figure the loss factors as 12% for the m6 (426bhp÷375whp) and 18% for the a6 (400bhp÷330whp) with fair accuracy. so you can assume to have roundabout 482bhp with a stick (430whp*1.12 aka 12%), without taking into account whatever error and variation your particular dyno will have. also 12% loss is insanely good, i dont know if gm underrated the ls3 by a few horses or the 6060 is just THAT efficient somehow. __________________ 2013 Camaro 2SS 1LE w/ RS [Rally Yellow] Stock + Speed Engineering 1 7/8 LTHs w/ TSP HFCs, Roto-Fab CAI, Innovate DLG1/LC2 Dual WBo2, Smoked Wicker Bill, Self Tuned w/ HPTuners

05-25-2020, 11:05 PM	#5
Tony Camaro Drives: 2013 1LS Join Date: Apr 2019 Location: U.S. Posts: 70	You can always get a good estimate by dividing WHP by .8 if it's an auto or by .85 if it's a manual.

05-26-2020, 08:54 AM	#7
Modernmusclecar Drives: 2011 Camaro SS Join Date: Jul 2019 Location: Parts unknown Posts: 826	430 whp seems a bit high.

05-27-2020, 04:36 PM	#11
Spec Account Suspended Drives: 2010 Camaro 1SS LS3 Join Date: Jan 2015 Location: Riverside, CA Posts: 4,018	1/.85 = 1.1765 (rounded up) 1.1765 x 430rwhp ... so appx 506hp The increase due to the increase in air/oxygen-flow and fuel. Is that right? Because now people are going to say they have a 500+ horsepower car lol Mine's settled at 426rwhp for now with bolt-ons and a tune...

05-27-2020, 07:20 PM	#13
Warship2k15 Drives: 2010 Camaro 2SS Join Date: May 2016 Location: Kissimmee Posts: 158	Rwhp is only a number.On one dyno the same car could be at 370-380. In my opinion they should only be used for comparison from before and after etc or if lots of people are using the same dyno you could compare your car to another with the exact same mods to see if you have any problems. Other then that they should be taken with a grain of salt.