2012 LS3 Stock Dyno Numbers?
Track Junky
Joined: Jun 2007
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From: Orlando Area
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Team Owner
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From: Short Hills, NJ
Track Junky
Joined: Jun 2007
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From: Orlando Area
Tech Contributor
Those are impressive numbers for a base LS3. Stock LS2's will usually pull down between 335-350 rwhp in base form.
I blew me LS2 on the track last month and have a 2012 dry sump LS3 on the way. I'm excited for the numbers this thing may put out!
I blew me LS2 on the track last month and have a 2012 dry sump LS3 on the way. I'm excited for the numbers this thing may put out!
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Track Junky
Joined: Jun 2007
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From: Orlando Area
Tech Contributor
I'm impressed with the numbers you guys are posting. I thought 375-385 was the norm.
I was hoping for 415-425 with Halltech CIA, LG headers and a tune once my LS3 is installed. My previous Heads, cam and full bolt-on LS2 made 485/440. Granted, the cam was not big (Spin's 230/234 114+2), but it took a good bit of money to get there.
I was hoping for 415-425 with Halltech CIA, LG headers and a tune once my LS3 is installed. My previous Heads, cam and full bolt-on LS2 made 485/440. Granted, the cam was not big (Spin's 230/234 114+2), but it took a good bit of money to get there.
Race Director
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From: SW Florida
2021 C6 of the Year Finalist - Modified
From everything I have heard, a bone stock LS3 (A6) will make about 375 rwhp on a DynoJet.
The LS3 (M6) about 385 on a DynoJet.
Subtract at least 10 RWHP from those numbers if run on a Mustang dyno.
Race Director
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From: SW Florida
2021 C6 of the Year Finalist - Modified
Race Director
Joined: Mar 2005
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From: Austin Texas
I'm impressed with the numbers you guys are posting. I thought 375-385 was the norm.
I was hoping for 415-425 with Halltech CIA, LG headers and a tune once my LS3 is installed. My previous Heads, cam and full bolt-on LS2 made 485/440. Granted, the cam was not big (Spin's 230/234 114+2), but it took a good bit of money to get there.
I was hoping for 415-425 with Halltech CIA, LG headers and a tune once my LS3 is installed. My previous Heads, cam and full bolt-on LS2 made 485/440. Granted, the cam was not big (Spin's 230/234 114+2), but it took a good bit of money to get there.
In real life a Dynojet w/smoothing 5, SAE corrected will show the LS3 @ aprx 375 RWHP A6 and aprx 385 RWHP Stick.
Le Mans Master
Joined: Dec 2007
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From: Somewhere in the Mid 9's TX
Sorry, I disagree. I could care less about impressing somebody with dyno numbers. I let my track numbers speak for my car. My dyno numbers were not false as you seem to imply.
Track Junky
Joined: Jun 2007
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From: Orlando Area
Tech Contributor
I'm not sure that's true. I would bet simple car variances coupled with engine break-in could account for the higher than normal numbers. I have heard that some engines can pick up 10 rwhp once the rigms seat, but have t been able to confirm that.
Le Mans Master
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From: Tampa FL (formerly Justinjor)
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St. Jude Donor '11-'12-'13-'14
I'm not saying people are lying about dyno numbers, but there are far too many variables in different dynos and conditions for baseline numbers to really mean much.
GMHTP just posted their 2012 Centennial edition made 415whp but then it went and ran 12.8@112 at the dragstrip.
The LS3 is SAE J1349 rated at 430hp at the crank. Using a conservative 12% drivetrain loss, that puts the manual trans LS3 at 378.4 whp out of the factory.
There is a lot to be said for motors making more power after they've been broken in and have seem some quality mileage on the odometer. Perhaps the higher dyno numbers are from people who have put some miles on their car and the motor is, in fact, making more than the 430 from the factory.
Either way, the track doesn't lie(to a degree) and in my opinion, that's what really matters.
I do like that I can tell people mine made over 500 though. The previous 494whp number was a real let down. 517 sounds much better
GMHTP just posted their 2012 Centennial edition made 415whp but then it went and ran 12.8@112 at the dragstrip.
The LS3 is SAE J1349 rated at 430hp at the crank. Using a conservative 12% drivetrain loss, that puts the manual trans LS3 at 378.4 whp out of the factory.
There is a lot to be said for motors making more power after they've been broken in and have seem some quality mileage on the odometer. Perhaps the higher dyno numbers are from people who have put some miles on their car and the motor is, in fact, making more than the 430 from the factory.
Either way, the track doesn't lie(to a degree) and in my opinion, that's what really matters.
I do like that I can tell people mine made over 500 though. The previous 494whp number was a real let down. 517 sounds much better
