02-10-2009, 09:45 PM | #1 |
Drives: . Join Date: Feb 2009
Location: South
Posts: 2
|
power ratings?
Hello everyone. Just a bit curious about the HP ratings on this LS3. I've seen 430 and 426, not sure which is acurate. But my question is, back in the early days many of these engines were "underrated", in some cases very underrated because of insurance purposes or whatever. Is it believed that the LS3 may also possess more than the advertised HP? Do car companies still do that?
|
02-10-2009, 09:47 PM | #2 | |
Camaro➎ moderator
|
Quote:
|
|
02-10-2009, 10:04 PM | #3 |
Booooosted.
|
Don't care. This car is purdy.
|
02-12-2009, 12:29 AM | #4 | |
Banned
Drives: 2003 Cobra Convertible Join Date: Feb 2009
Location: CA
Posts: 2,925
|
Quote:
The LS3 and it's variances (GXP, Corvette, Camaro, etc.) are all SAE Certified. |
|
02-12-2009, 12:12 PM | #5 |
Drives: 2007 Z06 Join Date: Oct 2008
Location: Swansea IL
Posts: 727
|
The LS3 in the vette is rated 430 and 436. All other applications will most likely be lower. Example the Camaro is rated at 426.
Tom BTW the 436 rating is with the optional Z06 exhaust. |
02-12-2009, 01:33 PM | #6 | |
Drives: 1998 Camaro SS Join Date: Oct 2008
Location: Lancaster, CA
Posts: 1,115
|
Quote:
As stated earlier, the LS3 is SAE certified and that would make it impossible to underrate. |
|
02-12-2009, 06:13 PM | #7 | |
Moderator.ca
|
Quote:
For reference, the 5.7L hemi in the Challenger (370 crank hp rating) dynos at about 335 to the wheel. The LS3 in the G8 has dyno'd 370 to the wheel (415 crank rating). This is approximately a 10% driveline loss. One of three this is going on here: 1. Those engines were unsually strong 2. They have very low drive line losses 3. They're under rated. I'm leaning towards #3 because if you assume the standard 15% driveline loss from the 'regular' versions (390 hp Hemi, 436 hp LS3) you get . . . 332 and 371 which within error margin of what they dyno'd at.
__________________
Note, if I've gotten any facts wrong in the above, just ignore any points I made with them
__________________ Originally Posted by FbodFather My sister's dentist's brother's cousin's housekeeper's dog-breeder's nephew sells coffee filters to the company that provides coffee to General Motors...... ........and HE WOULD KNOW!!!!__________________ Camaro Fest sub-forum |
|
02-12-2009, 06:18 PM | #8 | |
Camaro➎ moderator
|
Quote:
|
|
02-12-2009, 10:47 PM | #9 |
Moderator.ca
|
yes . . .
__________________
Note, if I've gotten any facts wrong in the above, just ignore any points I made with them
__________________ Originally Posted by FbodFather My sister's dentist's brother's cousin's housekeeper's dog-breeder's nephew sells coffee filters to the company that provides coffee to General Motors...... ........and HE WOULD KNOW!!!!__________________ Camaro Fest sub-forum |
02-12-2009, 10:51 PM | #10 |
Drives: 1982 camaro Join Date: Nov 2008
Location: california
Posts: 153
|
i heard the gtr is underrated at 480 hp, i heard its really 500 plus hp
|
02-12-2009, 11:08 PM | #11 |
Banned
Drives: 2003 Cobra Convertible Join Date: Feb 2009
Location: CA
Posts: 2,925
|
|
02-12-2009, 11:36 PM | #12 |
Drives: SRT-4 Join Date: May 2008
Location: El Paso
Posts: 122
|
Too bad no one said this to the GTR's tranny. LoL
__________________
I am a power junkie,
and forced induction is my fix. |
02-12-2009, 11:39 PM | #13 |
Moderator.ca
|
GTR: Get Transmission Replaced
__________________
Note, if I've gotten any facts wrong in the above, just ignore any points I made with them
__________________ Originally Posted by FbodFather My sister's dentist's brother's cousin's housekeeper's dog-breeder's nephew sells coffee filters to the company that provides coffee to General Motors...... ........and HE WOULD KNOW!!!!__________________ Camaro Fest sub-forum |
02-12-2009, 11:47 PM | #14 |
Drives: 1982 camaro Join Date: Nov 2008
Location: california
Posts: 153
|
this is why i hate all this paddle shift, dual clutch, semi-manual crap.
if nissan just put in three pedals than they would of never had this problem. Last edited by 1982camaro; 02-13-2009 at 12:10 AM. |
|
|
Thread Tools | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Well sunroof question answered (PIC) | Black5thgen | 5th Gen Camaro SS LS LT General Discussions | 152 | 08-29-2009 10:23 PM |
Addressing Power Hop on the IRS | Mr. Wyndham | 5th Gen Camaro SS LS LT General Discussions | 16 | 11-01-2008 07:15 PM |
Turbocharge your way to efficiency.....and power! | Mr. Wyndham | Forced Induction - V8 | 20 | 07-06-2008 12:46 PM |
JD Power survey: Younger Buyers Avoiding Domestics | Scotsman | General Automotive + Other Cars Discussion | 6 | 12-04-2007 01:31 AM |
Bob Lutz on JD Power Durability ratings | Mr. Wyndham | General Automotive + Other Cars Discussion | 2 | 08-31-2007 11:11 PM |