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

JoshJ81 · 08-04-2009, 07:56 AM

Besides power output and A6 or M6 trans, what is the difference? Just a heads and cam package? Could a L99 be made into a LS3?

logan1080 · 08-04-2009, 08:17 AM

Not sure, the internals might be different due to the active fuel management.

ZZcamaro · 08-04-2009, 09:36 AM

lower compression in the l99 and different camshaft.

The L99 does respond very well to mods....just add some long-tubes and a CAI and you will have more power than a stock LS3 easily

gmag21 · 08-04-2009, 09:47 AM

LS3 Has 26 more baseline horsepower; yet an average of 50 hp more to the wheels than the automatics (L99). Ive noticed alot of people with the LS3 are dyno'ing around 360 WHP and with the L99 around 310 WHP. Mods such as ecu reflash will be more effective on the L99. The only difference between the L99 and LS3 is the L99 has less aggressive cam shafts and it ads the AFM (Active Fuel Management). Im going with the L99 because Im lazy and I like my knees

. L99 is good for modding man. CAI/Headers/**Torque Converter/Tune and you'll have around 400whp on the L99

fun stuff

Grant

JoshJ81 · 08-04-2009, 04:07 PM

Ah torque converter, that's a term I've not heard of in a long while (long time manual driver). But isn't that more for drag racing or can that actually benefit you in more ways? Any suggestions on a Torque converter?

SGOS252382 · 08-04-2009, 04:30 PM

Quote:

Originally Posted by gmag21

LS3 Has 26 more baseline horsepower; yet an average of 50 hp more to the wheels than the automatics (L99). Ive noticed alot of people with the LS3 are dyno'ing around 360 WHP and with the L99 around 310 WHP. Mods such as ecu reflash will be more effective on the L99. The only difference between the L99 and LS3 is the L99 has less aggressive cam shafts and it ads the AFM (Active Fuel Management). Im going with the L99 because Im lazy and I like my knees

. L99 is good for modding man. CAI/Headers/**Torque Converter/Tune and you'll have around 400whp on the L99

fun stuff

Grant

The L99's that are "normal" are dynoing around 320 rwhp (on average).

If the L99 was in a stick/manual Camaro (like the LS3 is) you could easily add 20 rwhp to that. (16% vs 20%)
So an L99 with a stick/manual would be putting down around 340 rwhp (on average).

The LS3's are dynoing around 360 rwhp (on average).

So there really isn't as big of a difference between the two motors as most people think.

And from what I've been seeing, the L99's torque numbers increase significantly with a tune.

Gentry78 · 08-04-2009, 04:33 PM

Quote:

Originally Posted by JoshJ81

Ah torque converter, that's a term I've not heard of in a long while (long time manual driver). But isn't that more for drag racing or can that actually benefit you in more ways? Any suggestions on a Torque converter?

yank 3200 or 3600 will really wake the car up but the 3200 would be more streetable

Gentry78 · 08-04-2009, 04:35 PM

Quote:

Originally Posted by SGOS252382

The L99's that are "normal" are dynoing around 320 rwhp (on average).

If the L99 was in a stick/manual Camaro (like the LS3 is) you could easily add 20 rwhp to that. (16% vs 20%)
So an L99 with a stick/manual would be putting down around 340 rwhp (on average).

The LS3's are dynoing around 360 rwhp (on average).

So there really isn't as big of a difference between the two motors as most people think.

And from what I've been seeing, the L99's torque numbers increase significantly with a tune.

thats what a munch of us have been trying to tell the l99 haters lol

JoshJ81 · 08-04-2009, 04:53 PM

Quote:

Originally Posted by Gentry78

yank 3200 or 3600 will really wake the car up but the 3200 would be more streetable

Would the 3600 need a gear beef up? What would the difference be? They seem to cost the same.

JoshJ81 · 08-04-2009, 04:55 PM

Anyone have a good suggest for a camshaft as well? L99 friendly that is.

Gentry78 · 08-04-2009, 05:28 PM

Quote:

Originally Posted by JoshJ81

Would the 3600 need a gear beef up? What would the difference be? They seem to cost the same.

no but it wouldn't hurt and performance wise you wont see a difference unless you put on some drag radials or slicks then you would need to beef up everything

Gentry78 · 08-04-2009, 05:33 PM

Quote:

Originally Posted by JoshJ81

Anyone have a good suggest for a camshaft as well? L99 friendly that is.

comp cams is coming out with really good vvt afm cams

i don't think its ready yet but they should be coming you might wanna check them out

JoshJ81 · 08-04-2009, 05:34 PM

Thanks Gentry.

JTinFL · 08-04-2009, 05:47 PM

I dont think it would be worth it to make it into a LS3. Too much money that could be used in better ways.

08-04-2009, 07:56 AM	#1
JoshJ81 Drives: '10 Camaro 2SS/RS Black Join Date: Jul 2009 Location: Wichita Falls, TX Posts: 257	L99/LS3 Besides power output and A6 or M6 trans, what is the difference? Just a heads and cam package? Could a L99 be made into a LS3?

08-04-2009, 09:47 AM	#4
gmag21 gmag21 Drives: 2010 Camaro 1SS/RS Join Date: May 2009 Location: Lafayette/Kingwood Posts: 337	LS3 Has 26 more baseline horsepower; yet an average of 50 hp more to the wheels than the automatics (L99). Ive noticed alot of people with the LS3 are dyno'ing around 360 WHP and with the L99 around 310 WHP. Mods such as ecu reflash will be more effective on the L99. The only difference between the L99 and LS3 is the L99 has less aggressive cam shafts and it ads the AFM (Active Fuel Management). Im going with the L99 because Im lazy and I like my knees . L99 is good for modding man. CAI/Headers/**Torque Converter/Tune and you'll have around 400whp on the L99 fun stuff Grant __________________ L99 \| Billyboat Exhaust, American Racing Headers, Pfadt Springs and Sways, Tune \| 350 whp / 371 tq

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