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03-15-2012, 01:55 PM
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#1 |
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2010 2SS - 445 RWH
Drives: 2010 2SS Camaro - 445 RWHP Join Date: Mar 2012
Location: Kokomo, IN
Posts: 15
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Wheel HP to Crank HP guesstimate?
Just bought this 2010 2SS. The previous owner has made several mods I've learned including porting heads, cam upgrade, exhaust, intake, engine and tranny chipping and tuning.
Bottom line is I have a dyno report showing just over 400hp at the wheels. This is the automatic btw. Any guess as to where that'd put the engine hp? I've read stock engine is 400hp and seen rear wheel hp dyno'ing at about 305 for some of the posts I've read. Thoughts? I'll have a list of parts soon. On the mail as to what exactly was done. |
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03-15-2012, 01:57 PM
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#2 |
          Drives: cars Join Date: May 2011
Location: Oversneeze
Posts: 4,542
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15% correction for manual, 18-20% correction for auto.
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03-15-2012, 02:01 PM
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#3 |
Drives: 2010 SS , 1970 Z-28, 2002 Avalanche Join Date: Aug 2009
Location: Michigan
Posts: 2,524
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Just throwing this one out there, but, assume 18% loss throughout the drivetrain on the auto @ 400RWHP we could say that you would be in the ball park of around 472 "crank HP".
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IF IT'S WORTH HAVING, IT'S WORTH WAITING FOR!!!! (AND IT WAS)
434RWHP/403RWTQ Livernois Motorsports 2C Cam kit Kooks 1 7/8 LT Headers/Hi-Flo Cats/Corsa Exhaust Roto-Fab CAI / Port Intake Precission 2400/2800 Converter/3.73 AAM gears Livernois Motorsports Tune Best time: 11.97 @ 117 MPH |
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03-15-2012, 02:01 PM
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#4 |
Drives: 2012 45th AE 2SS Coupe Join Date: Sep 2011
Location: Chicago IL
Posts: 1,125
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500 crank hp at a 20% loss would be 400 hp to the wheels
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03-15-2012, 02:06 PM
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#5 |
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USAF retired! Thank God!
Drives: 2011 1SS, 1LT red,1LT/RS SGM 98Z28 Join Date: Jul 2011
Location: North Texas
Posts: 2,799
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20% loss from the crank all the way back to the tires from a 500 crank HP motor is 400RWHP. So, you can say the motor is 500HP
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05-22-2012, 08:16 PM
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#6 |
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2010 2SS - 445 RWH
Drives: 2010 2SS Camaro - 445 RWHP Join Date: Mar 2012
Location: Kokomo, IN
Posts: 15
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Just bumped up to 445 with LT headers, mid pipes, high flow cats and a tune...mmmmmmm
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2010 2SS 445 RWHP - DOD/AFM Delete kit - Stage 2C cam - CNC valve job - Ported the intake & TB - CNC Ported Stage 2 L92 Heads - ARP Head Bolts - MLS Head Gaskets - Hardened Pushrods - GMPP LS7 Lifters - LS2 Lifter guide kit - LS2 Valley Cover - Valve Cover Breather Block-Off - LS7 Camshaft Sprocket - Timing Chain Dampener - PCV Hose for Non-DOD applications and Timing Cover w/ Sensor - ARP Timing Chain Bolts - Kooks 1 7/8" LT Headers and mid pipes w/high flow cats - PI 2400 Single Disc Stall Converter - Livernios custom tune.
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05-22-2012, 08:21 PM
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#7 |
 
Drives: 2010 camaro ss Join Date: Feb 2012
Location: houston,texas
Posts: 382
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I made 330 stock have only headers cam intake and tune 465 to the wheels. Autos generally 20% loss manual 15% loss. You should be pushing quite a bit more than 400 at the wheels.
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Texas speeds 1 7/8 longtube headers and full exhaust vararam air intake. Lethal racings night fury cam and yank 3400 stall. Dyno tuned by lethal racing 465 rwhp 434 rwtq.
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05-22-2012, 08:41 PM
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#8 |
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2010 2SS - 445 RWH
Drives: 2010 2SS Camaro - 445 RWHP Join Date: Mar 2012
Location: Kokomo, IN
Posts: 15
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Wish I were doig better but the Dyno doesn't lie and in my case I'm stuck at 445. I'd LOVE to hit 500+ but I think each car had a mind of its own because even the same or similar mods they don't alway make the same power. Wonder if higher flow injectors would be of any help? Could look into SC or Turbo. Both at least $7k tho. Ah well. I can dream lol! Congrats on your monster you've made. Very nice ride it looks like!!
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2010 2SS 445 RWHP - DOD/AFM Delete kit - Stage 2C cam - CNC valve job - Ported the intake & TB - CNC Ported Stage 2 L92 Heads - ARP Head Bolts - MLS Head Gaskets - Hardened Pushrods - GMPP LS7 Lifters - LS2 Lifter guide kit - LS2 Valley Cover - Valve Cover Breather Block-Off - LS7 Camshaft Sprocket - Timing Chain Dampener - PCV Hose for Non-DOD applications and Timing Cover w/ Sensor - ARP Timing Chain Bolts - Kooks 1 7/8" LT Headers and mid pipes w/high flow cats - PI 2400 Single Disc Stall Converter - Livernios custom tune.
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05-22-2012, 08:43 PM
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#9 |
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2010 2SS - 445 RWH
Drives: 2010 2SS Camaro - 445 RWHP Join Date: Mar 2012
Location: Kokomo, IN
Posts: 15
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I do have an Air Ram CAI and full Flowmaster exhaust. My signature was too long to include those.
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2010 2SS 445 RWHP - DOD/AFM Delete kit - Stage 2C cam - CNC valve job - Ported the intake & TB - CNC Ported Stage 2 L92 Heads - ARP Head Bolts - MLS Head Gaskets - Hardened Pushrods - GMPP LS7 Lifters - LS2 Lifter guide kit - LS2 Valley Cover - Valve Cover Breather Block-Off - LS7 Camshaft Sprocket - Timing Chain Dampener - PCV Hose for Non-DOD applications and Timing Cover w/ Sensor - ARP Timing Chain Bolts - Kooks 1 7/8" LT Headers and mid pipes w/high flow cats - PI 2400 Single Disc Stall Converter - Livernios custom tune.
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05-22-2012, 09:28 PM
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#10 |
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Drives: 2010 camaro ss Join Date: Feb 2012
Location: houston,texas
Posts: 382
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Ok ok I know no dynos the same didn't see your Sig before 445 is gd. I thought u said a little over 400 I was thinking just that. And just like no dynos the same northern is a cam or the tune don't get all butt hurt.
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Texas speeds 1 7/8 longtube headers and full exhaust vararam air intake. Lethal racings night fury cam and yank 3400 stall. Dyno tuned by lethal racing 465 rwhp 434 rwtq.
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05-23-2012, 07:38 AM
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#11 |
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2010 2SS - 445 RWH
Drives: 2010 2SS Camaro - 445 RWHP Join Date: Mar 2012
Location: Kokomo, IN
Posts: 15
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Relax. I wasn't criticizing you at all. Just saying maybe I didn't get the gains I could have and was glad you did. It's all good.
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2010 2SS 445 RWHP - DOD/AFM Delete kit - Stage 2C cam - CNC valve job - Ported the intake & TB - CNC Ported Stage 2 L92 Heads - ARP Head Bolts - MLS Head Gaskets - Hardened Pushrods - GMPP LS7 Lifters - LS2 Lifter guide kit - LS2 Valley Cover - Valve Cover Breather Block-Off - LS7 Camshaft Sprocket - Timing Chain Dampener - PCV Hose for Non-DOD applications and Timing Cover w/ Sensor - ARP Timing Chain Bolts - Kooks 1 7/8" LT Headers and mid pipes w/high flow cats - PI 2400 Single Disc Stall Converter - Livernios custom tune.
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05-23-2012, 07:49 AM
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#12 |
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FWIW i use the same Mustang dyno at Vector Motorsports (shameless plug) with each performance mod to see what i've gained. Love seeing the positives. Overall i personally don't care, it's the in between's that matter most. 460 RWHP here
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05-23-2012, 08:08 AM
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#13 | |
 
Drives: 2017 Mosaic Bk ZL1 M6 Join Date: Jul 2009
Location: South of Raleigh, NC
Posts: 9,614
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Quote:
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