True Horsepower of LS1 in F Body
Thread Starter
Registered User
Joined: Apr 2002
Posts: 109
From: Bremerton, WA.
True Horsepower of LS1 in F Body
I've heard that GM under rates the horsepower rating on the LS1 moters in the F-body to keep vette owners from freaking out. Is this true and if so, what are more realistic horsepower numbers. Just curious.
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'02 35th anniversary edition camaro SS, 6spd, hurst, t-tops...
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'02 35th anniversary edition camaro SS, 6spd, hurst, t-tops...
Registered User
Joined: Apr 2000
Posts: 79
From: Little Falls, NY, USA
seriously underated. the 01's and 02's are making about 360 at the flywheel, the older ones about 10-15hp less, my 2000 dynoed 318 at the wheels stock, but it seems to be an overachiever for some reason, lucky me!
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2000 black WS6 6speed
318 RWHP 322 RWTQ stock
best et: 12.90 with the drag radials and stock 3.42 gear.
bestmph: 109.72 first time out, no mods, on the street tires
Mods: centerforce dual friction clutch, moser 12 bolt w/4.10's
BFG dragradials, PRO 5.0 shifter
whats next: put the borla on, take baffles out of WS6 hood, tb bypass, et streets
hopeing for 12.60's
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2000 black WS6 6speed
318 RWHP 322 RWTQ stock
best et: 12.90 with the drag radials and stock 3.42 gear.
bestmph: 109.72 first time out, no mods, on the street tires
Mods: centerforce dual friction clutch, moser 12 bolt w/4.10's
BFG dragradials, PRO 5.0 shifter
whats next: put the borla on, take baffles out of WS6 hood, tb bypass, et streets
hopeing for 12.60's
Thread Starter
Registered User
Joined: Apr 2002
Posts: 109
From: Bremerton, WA.
<font face="Verdana, Arial" size="2">Originally posted by phil1001:
seriously underated. the 01's and 02's are making about 360 at the flywheel, the older ones about 10-15hp less, my 2000 dynoed 318 at the wheels stock, but it seems to be an overachiever for some reason, lucky me!
</font>
seriously underated. the 01's and 02's are making about 360 at the flywheel, the older ones about 10-15hp less, my 2000 dynoed 318 at the wheels stock, but it seems to be an overachiever for some reason, lucky me!
</font>
Thanks, love these beasts, don't you? Later....------------------
'02 35th anniversary edition camaro SS, 6spd, hurst, t-tops...
Thread Starter
Registered User
Joined: Apr 2002
Posts: 109
From: Bremerton, WA.
<font face="Verdana, Arial" size="2">Originally posted by Great8:
My '99 dynoed 293 RWHP (stock @ 6200 miles), and I haven't dynoed my '02 yet.
</font>
My '99 dynoed 293 RWHP (stock @ 6200 miles), and I haven't dynoed my '02 yet.
</font>
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'02 35th anniversary edition camaro SS, 6spd, hurst, t-tops...
Registered User
Joined: Jul 2000
Posts: 681
From: Republic of Korea
I have yet to dyno mine but most of the LS1s I have seen dynoed are making over 300rwhp. Some are a little stronger than others and they're making around 320-325rwhp.
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Aaron
Black ’96 Z28 *sold*
SSM '02 Z28
Pro 5.0, FRA, MTI lid
¼- 13.21@108.2
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Aaron
Black ’96 Z28 *sold*
SSM '02 Z28
Pro 5.0, FRA, MTI lid
¼- 13.21@108.2
Thread Starter
Registered User
Joined: Apr 2002
Posts: 109
From: Bremerton, WA.
<font face="Verdana, Arial" size="2">Originally posted by 96SFLZ:
I have yet to dyno mine but most of the LS1s I have seen dynoed are making over 300rwhp. Some are a little stronger than others and they're making around 320-325rwhp.
</font>
I have yet to dyno mine but most of the LS1s I have seen dynoed are making over 300rwhp. Some are a little stronger than others and they're making around 320-325rwhp.
</font>
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'02 35th anniversary edition camaro SS, 6spd, hurst, t-tops...
Registered User
Joined: Mar 2002
Posts: 14
From: Granger, IN, USA
I read an article in Chevy High Performance Magazine a few months back were they performed this same test. They measured a '01 Z28 with a six-speed at 318 RWHP and the A4 at 310 RWHP. The actual engine output of the LS1 (for both trannies) is supposedly in the range of 350hp.
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2001 Sunset Orange Z28
1992 Camaro RS 305 Anniversary edition
(white with red stripes)
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2001 Sunset Orange Z28
1992 Camaro RS 305 Anniversary edition
(white with red stripes)
Thread Starter
Registered User
Joined: Apr 2002
Posts: 109
From: Bremerton, WA.
<font face="Verdana, Arial" size="2">Originally posted by RichardNixon:
I read an article in Chevy High Performance Magazine a few months back were they performed this same test. They measured a '01 Z28 with a six-speed at 318 RWHP and the A4 at 310 RWHP. The actual engine output of the LS1 (for both trannies) is supposedly in the range of 350hp.
</font>
I read an article in Chevy High Performance Magazine a few months back were they performed this same test. They measured a '01 Z28 with a six-speed at 318 RWHP and the A4 at 310 RWHP. The actual engine output of the LS1 (for both trannies) is supposedly in the range of 350hp.
</font>
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'02 35th anniversary edition camaro SS, 6spd, hurst, t-tops...K&N filter
Thread Starter
Registered User
Joined: Apr 2002
Posts: 109
From: Bremerton, WA.
<font face="Verdana, Arial" size="2">Originally posted by rncotton:
My 2001 Z28 (R.I.P.) laid 284 RWHP when it was stock.</font>
My 2001 Z28 (R.I.P.) laid 284 RWHP when it was stock.</font>
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'02 35th anniversary edition camaro SS, 6spd, hurst, t-tops...K&N filter
Registered User
Joined: Feb 2001
Posts: 2
From: Dallas, Texas, USA
<font face="Verdana, Arial" size="2">Originally posted by RichardNixon:
The actual engine output of the LS1 (for both trannies) is supposedly in the range of 350hp.
</font>
The actual engine output of the LS1 (for both trannies) is supposedly in the range of 350hp.
</font>
Both are fine vehicles.
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2002 Electron Blue Corvette Coupe
1998 Black Convertible Camaro *Sold, but not forgotten*
1999 Black Mazda pickup
Currently on the waiting list for the new Mazda RX8.
Registered User
Joined: Sep 2001
Posts: 903
From: boxboro, MA, USA
i have seen as low as 270 (98 TA A4) as high as 310 (00 SS M6) bone stock. my buddy dynos 340 rwhp abd 349 RWT with a lid, pace MAF, and GMMG in an 01 WS6. both the SS and WS6 were both over 15k miles, so well broken in. i have never seen a C5 vette dyno less than 300 rwhp (usually 300-320 depending on drivetrain and year), but they also have additional drivetrain loss (2-3% more) due to the IRS and i think tranny placement....not too sure, but there was a post in this tech section a few months ago if you are interested. nice beast the LS1 is.....
brian
brian
Thread Starter
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Joined: Apr 2002
Posts: 109
From: Bremerton, WA.
<font face="Verdana, Arial" size="2">Originally posted by sleeperZ96BT:
i have seen as low as 270 (98 TA A4) as high as 310 (00 SS M6) bone stock. my buddy dynos 340 rwhp abd 349 RWT with a lid, pace MAF, and GMMG in an 01 WS6. both the SS and WS6 were both over 15k miles, so well broken in. i have never seen a C5 vette dyno less than 300 rwhp (usually 300-320 depending on drivetrain and year), but they also have additional drivetrain loss (2-3% more) due to the IRS and i think tranny placement....not too sure, but there was a post in this tech section a few months ago if you are interested. nice beast the LS1 is.....
brian</font>
i have seen as low as 270 (98 TA A4) as high as 310 (00 SS M6) bone stock. my buddy dynos 340 rwhp abd 349 RWT with a lid, pace MAF, and GMMG in an 01 WS6. both the SS and WS6 were both over 15k miles, so well broken in. i have never seen a C5 vette dyno less than 300 rwhp (usually 300-320 depending on drivetrain and year), but they also have additional drivetrain loss (2-3% more) due to the IRS and i think tranny placement....not too sure, but there was a post in this tech section a few months ago if you are interested. nice beast the LS1 is.....
brian</font>
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'02 35th anniversary edition camaro SS, 6spd, hurst, t-tops...K&N filter
