LS3 or L99 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

johnny74 · 07-24-2009, 01:44 PM

Ok, sorry if this is a dumb question, but are the LS3 and L99 different engines? If so, what is the difference? Does the option cost?

wullger · 07-24-2009, 01:47 PM

http://www.camaro5.com/forums/wiki.p...O+WIKI&#ENGINE

coolman · 07-24-2009, 01:53 PM

L99 is 400hp, only offered on the automatic, and is multi displacement.
Ls3 is 426hp, only offered on the manual, and is not multi displacement. It is the same motor as in the base vette with 4 less hp.

johnny74 · 07-24-2009, 01:54 PM

Thanks!

patriotpa · 07-24-2009, 04:13 PM

Same series. Different top ends.

Ignore the haters.

Lee9710 · 07-24-2009, 04:22 PM

Quote:

Originally Posted by rpepka

It costs 1185 for the automatic to go slower!

Maybe the top end is higher on the stick but the L99 is quicker in the 0-60 which is where most races occur. By the end of the 1/4 the LS3 would win barely but that is all. Both are sweet, but for some reason the LS3 guys typically hate on the L99s just because a few on here have issues. Mine is strong and running the advertised times. Plus modding the L99 will be better in the long run.

8ty8 ls1 · 07-24-2009, 04:50 PM

Quote:

Originally Posted by Lee9710

Maybe the top end is higher on the stick but the L99 is quicker in the 0-60 which is where most races occur. By the end of the 1/4 the LS3 would win barely but that is all. Both are sweet, but for some reason the LS3 guys typically hate on the L99s just because a few on here have issues. Mine is strong and running the advertised times. Plus modding the L99 will be better in the long run.

Supermans · 07-24-2009, 04:55 PM

Quote:

Originally Posted by Lee9710

Maybe the top end is higher on the stick but the L99 is quicker in the 0-60 which is where most races occur. By the end of the 1/4 the LS3 would win barely but that is all. Both are sweet, but for some reason the LS3 guys typically hate on the L99s just because a few on here have issues. Mine is strong and running the advertised times. Plus modding the L99 will be better in the long run.

Unless you are unlucky enough to have an L99 with the "slows"..

*CamaroSpike23* · 07-24-2009, 05:03 PM

Quote:

Originally Posted by Supermans

Unless you are unlucky enough to have an L99 with the "slows"..

in which case you just have to wait a little bit for the motor to open up.

SGOS252382 · 07-24-2009, 05:21 PM

Yeah, even when tested in much warmer air (87 degrees for the L99 vs 72 degrees for the LS3) the L99 ran pretty much the same time as the LS3 in the 1/8 mile (8.68 vs 8.60) in GM High Tech testing. And the L99 only ran .3 tenth slower in the 1/4 mile. But it obvious the LS3 has more top end by its higher trap speeds (105 mph vs 110 mph). But when looking at those trap speeds you need to take into account the LS3 was tested in air 15 degrees cooler (which is significant and would account for some of that increase in trap speed).

In similar weather conditions (both running in 72 degree air), the L99 would have most likely beat the LS3's time in the 1/8 mile and been extremely close to its time in the 1/4 mile.

The L99 is a strong runner and can hold its own pretty well when matched up against the LS3 in a drag race.

rpepka · 07-24-2009, 08:13 PM

Quote:

Originally Posted by Lee9710

Maybe the top end is higher on the stick but the L99 is quicker in the 0-60 which is where most races occur. By the end of the 1/4 the LS3 would win barely but that is all. Both are sweet, but for some reason the LS3 guys typically hate on the L99s just because a few on here have issues. Mine is strong and running the advertised times. Plus modding the L99 will be better in the long run.

Well if you have been reading many L99's are running very poorly and none of us can get GM to do anything about it. 0 to 60 6 to 7.5 seconds.

*CamaroSpike23* · 07-24-2009, 08:40 PM

Quote:

Originally Posted by rpepka

Well if you have been reading many L99's are running very poorly and none of us can get GM to do anything about it. 0 to 60 6 to 7.5 seconds.

define many. 2, 5, 10, 20?

how bout the number of the ones that ARENT having any problems?

what is GM supposed to do about it?

how about the fact that 6 of the top 10 fastest bone stock camaros are L99 A6's?

everyone wants to bitch when a few cars have problems, but no one wants to look at the multitudes of identical cars that are problem free.

ToddSS · 07-24-2009, 08:43 PM

My L99 is strong and will only get stronger.

JBsC6 · 07-24-2009, 09:02 PM

Both are great motors..

it really depends on whether you want a manual transmission or an automatic.

Good luck deciding.

JB

07-24-2009, 01:44 PM	#1
johnny74 Drives: 1974 Type LT, for now Join Date: Jul 2009 Location: Willowbrook, IL Posts: 9	LS3 or L99 Ok, sorry if this is a dumb question, but are the LS3 and L99 different engines? If so, what is the difference? Does the option cost?

07-24-2009, 01:47 PM	#2
wullger Supercharged Drives: 2010 Camaro 2SS/RS Join Date: Apr 2009 Location: Tyler, Texas Posts: 1,576 View My Garage	http://www.camaro5.com/forums/wiki.p...O+WIKI&#ENGINE __________________ 2SS/RS IBM A6, White Rallies Ordered: 4/30/09 Delivered: 8/18/09 Appearance Mods: Heritage Grille, ZL1 Replica Wheels Performance Mods: Flowmaster ARH Cat-Back Exhaust, ADM CAI, ADM L99-LS3 Conversion, ADM LSA Supercharger Kit, Lingenfelter GT9 Cam, Stainless Power Headers, Detroit Speed Sway Bars, ZL1 Fuel Pump 581 rwhp/535 lb/ft tq

07-24-2009, 09:02 PM	#14
JBsC6 Drives: 2008 Blk C6 Z51 NPP Join Date: Dec 2007 Location: Northern NJ Posts: 255 View My Garage	Both are great motors.. it really depends on whether you want a manual transmission or an automatic. Good luck deciding. JB __________________ 2008 Blk C6 Z51 NPP M6/2008 Silver CTS AWD FE2 304hp

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07-24-2009, 01:53 PM	#3
coolman Guest Join Date: Jun 2009 Location: PA Posts: 4,812	L99 is 400hp, only offered on the automatic, and is multi displacement. Ls3 is 426hp, only offered on the manual, and is not multi displacement. It is the same motor as in the base vette with 4 less hp.

07-24-2009, 01:54 PM	#4
johnny74 Drives: 1974 Type LT, for now Join Date: Jul 2009 Location: Willowbrook, IL Posts: 9	Thanks!

07-24-2009, 04:13 PM	#5
patriotpa Account Suspended Drives: 02 Silverado, 09 Vue, 10 1SS Join Date: Aug 2008 Location: Tired of apologizing when we should be kickin' butt! Posts: 1,966 View My Garage	Same series. Different top ends. Ignore the haters.

07-24-2009, 05:21 PM	#10
SGOS252382 Drives: 2010 Camaro 2SS/RS Join Date: Mar 2008 Location: S.W. Florida Posts: 6,294	Yeah, even when tested in much warmer air (87 degrees for the L99 vs 72 degrees for the LS3) the L99 ran pretty much the same time as the LS3 in the 1/8 mile (8.68 vs 8.60) in GM High Tech testing. And the L99 only ran .3 tenth slower in the 1/4 mile. But it obvious the LS3 has more top end by its higher trap speeds (105 mph vs 110 mph). But when looking at those trap speeds you need to take into account the LS3 was tested in air 15 degrees cooler (which is significant and would account for some of that increase in trap speed). In similar weather conditions (both running in 72 degree air), the L99 would have most likely beat the LS3's time in the 1/8 mile and been extremely close to its time in the 1/4 mile. The L99 is a strong runner and can hold its own pretty well when matched up against the LS3 in a drag race.

07-24-2009, 08:43 PM	#13
ToddSS ZZ Motorsports Sales Rep Drives: 2010 SIM 1SS Join Date: Jul 2009 Location: moving to Texas Posts: 149	My L99 is strong and will only get stronger.