Pro's and Con's L99 vs LS3 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

lbs13 · 08-24-2009, 03:54 PM

What's good and bad? Which is easiest to mod? What has the most potential?

Currently awaiting my RS/1SS/A6/IBM

attymf · 08-24-2009, 04:00 PM

The obvious first:

426 hp and 420 tq for the LS3 to 400 hp and 410 tq for the L99.

H & E · 08-24-2009, 04:02 PM

*mlee* · 08-24-2009, 04:03 PM

Quote:

Originally Posted by attymf

The obvious first:

426 hp and 420 tq for the LS3 to 400 hp and 410 tq for the L99.

L99 Tune vs LS3 tune will pretty much null those numbers out... assuming you will tune at some point....

Auto start is cool for L99

Ammo7 · 08-24-2009, 04:06 PM

Quote:

Originally Posted by mlee

L99 Tune vs LS3 tune will pretty much null those numbers out... assuming you will tune at some point....

Auto start is cool for L99

Anyone know where to get a tune done in the north atlanta GA, area?
thanks

Lee9710 · 08-24-2009, 04:08 PM

Roughly the same power regardless of what the hp and torque numbers say. L99 will be more mod-friendly and seems to respond much better to a good tune. The L99s that are actually running correctly have been a touch quicker in the 0-60 times but the LS3 takes it by .1 or .2 in the 1/4 with a higher top end speed. The paddle shifters once you get good at it could make up for that .1 or .2 secs in the 1/4. Seems like the LS3 sounds a little better with an aftermarket exhaust put on, but both are great engines as long as the L99 isn't one of the ''problem children''.

lbs13 · 08-24-2009, 04:12 PM

What exactly is envoled with a good "tune" with one of these. I'm one of the old caburated guys, been out of it all for a few years. They just hook it to a laptop or what?

caverman · 08-24-2009, 04:38 PM

Quote:

Originally Posted by Lee9710

Roughly the same power regardless of what the hp and torque numbers say. L99 will be more mod-friendly and seems to respond much better to a good tune. The L99s that are actually running correctly have been a touch quicker in the 0-60 times but the LS3 takes it by .1 or .2 in the 1/4 with a higher top end speed. The paddle shifters once you get good at it could make up for that .1 or .2 secs in the 1/4. Seems like the LS3 sounds a little better with an aftermarket exhaust put on, but both are great engines as long as the L99 isn't one of the ''problem children''.

The "problem child" issue on the L99s seem to have a fix now. Pulling the fuses for the ECM...Do a search...so far it seems to make a big difference.

Quote:

Originally Posted by lbs13

What exactly is envoled with a good "tune" with one of these. I'm one of the old caburated guys, been out of it all for a few years. They just hook it to a laptop or what?

Yes...they use a laptop to make the adjustments but there is WAY more to it than just hooking it up to the lap top. Where you would change out the Jets and Squirts and things like that on a carb you do those sort of things using software. Obviously you can fine tune it much more than a carb and you typically need the car on a dyno to get a baseline run and then some runs after adjustments. This is NOT something you are going to want to try on your new Camaro. Take it to a professional speed shop and make sure they've actually worked on a 2010 Camaro before. Also know that more than likely you will void your drivetrain warranty with a tune because the ECM (on board computer) will let GM know that the factory tune has been overwritten thus voiding the warranty.

lbs13 · 08-24-2009, 04:40 PM

Anything we can do and keep the warranty, at least that is worth doing?

Camar0wn3d · 08-24-2009, 04:41 PM

Quote:

Originally Posted by Ammo7

Anyone know where to get a tune done in the north atlanta GA, area?
thanks

MTI Racing is in Marietta and Vengeance Racing is also right around there.

1320junkie · 08-24-2009, 04:51 PM

Quote:

Originally Posted by Ammo7

Anyone know where to get a tune done in the north atlanta GA, area?
thanks

MTI, Vengeance and a bunch of other shops...do you have an L99 or LS3? I got a great deal that I can turn you onto with the guys at MTI...you cant beat it

*mlee* · 08-24-2009, 04:59 PM

Quote:

Originally Posted by lbs13

What exactly is envoled with a good "tune" with one of these. I'm one of the old caburated guys, been out of it all for a few years. They just hook it to a laptop or what?

Basically a flash to your ECM (electronic control module). These cars are setup very conservative and run VERY rich. Timing, fuel mixture... For L99 the TM torque managment is a huge upgrade to when and how your transmission shifts. You can also get rid of AFM so it won't cut down to 4 cylinders.

Quote:

Originally Posted by lbs13

Anything we can do and keep the warranty, at least that is worth doing?

Drivetrain warranty is basically dead with a tune. Try CAI Cold Air intake and Catback exhaust for starters if you want to keep warranty.

*The_Blur* · 08-24-2009, 08:06 PM

There is no better Camaro. For those who drive for function, the automatic transmission will always be more consistent, but manual transmission proponents will always proclaim that their car is more fun to drive. Both are 6.2L V8s, and both will have equal access to tuning software that will allow users to make them hit similar performance numbers when using the same afermarket components. Each has mainstream aftermarket manufacturers building parts, and the internals match. Even if it were possible to argue that one would have slightly better track numbers in an ideal match, the other could just as easily win the next race. In all truth, they are such an even match when the same parts are applied that there is no difference in performance.

If you're going to compare the two Camaros, then it all comes down to discussing the transmission. Is a flywheel better than a torque converter? Which company makes the best part that would create a significant gap when compared to the other car? In order to tell, we'd need to test two identical Camaros except for their transmissions.

At the end of all of this analysis, it comes down to miniscule differences, begging a question: which one would you rather drive? That's all the really matters.

Gentry78 · 08-25-2009, 02:34 AM

neither are bad both are great

could one be better then the other for you and your overall goal and intentions for the car sure. but that only comes down to what tranny you prefer auto or manual

both are really the same when it comes to modding, one is the same as it's been for a long time, the other is slightly different due to newer technology(that actually works this time lol)

08-24-2009, 03:54 PM	#1
lbs13 Wilmes Winner! Drives: RS/1SS/IBM Join Date: Aug 2009 Location: Walters, ok Posts: 33 View My Garage	Pro's and Con's L99 vs LS3 What's good and bad? Which is easiest to mod? What has the most potential?Currently awaiting my RS/1SS/A6/IBM

08-24-2009, 04:02 PM	#3
H & E Hinson Drives: 2018 Hyper Blue 1LE Join Date: Oct 2008 Location: Waxhaw, NC Posts: 262	__________________ Why did I wait this long to buy this car?

08-24-2009, 04:08 PM	#6
Lee9710 Drives: 2013 Summit White ZL1 Join Date: Mar 2009 Location: Yelm, WA Posts: 632 View My Garage	Roughly the same power regardless of what the hp and torque numbers say. L99 will be more mod-friendly and seems to respond much better to a good tune. The L99s that are actually running correctly have been a touch quicker in the 0-60 times but the LS3 takes it by .1 or .2 in the 1/4 with a higher top end speed. The paddle shifters once you get good at it could make up for that .1 or .2 secs in the 1/4. Seems like the LS3 sounds a little better with an aftermarket exhaust put on, but both are great engines as long as the L99 isn't one of the ''problem children''. __________________ Proud Owner of the baddest Camaro ever built ZL1

08-24-2009, 08:06 PM	#13
The_Blur Moderator Drives: 2018 Harley-Davidson Street Bob Join Date: Nov 2007 Location: San Diego Posts: 14,769	There is no better Camaro. For those who drive for function, the automatic transmission will always be more consistent, but manual transmission proponents will always proclaim that their car is more fun to drive. Both are 6.2L V8s, and both will have equal access to tuning software that will allow users to make them hit similar performance numbers when using the same afermarket components. Each has mainstream aftermarket manufacturers building parts, and the internals match. Even if it were possible to argue that one would have slightly better track numbers in an ideal match, the other could just as easily win the next race. In all truth, they are such an even match when the same parts are applied that there is no difference in performance. If you're going to compare the two Camaros, then it all comes down to discussing the transmission. Is a flywheel better than a torque converter? Which company makes the best part that would create a significant gap when compared to the other car? In order to tell, we'd need to test two identical Camaros except for their transmissions. At the end of all of this analysis, it comes down to miniscule differences, begging a question: which one would you rather drive? That's all the really matters. __________________ RDP Motorsport//GEN5DIY//Cultrag Performance//JPSS//Rodgets Chevrolet// Operation Demon//Buy at Invoice//RACECARWEAR RESPECT ALL CARS. LOVE YOUR OWN. warn 145:159 ban

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08-24-2009, 04:00 PM	#2
attymf Drives: 2017 SS Join Date: Nov 2008 Location: LI, NY Posts: 755 View My Garage	The obvious first: 426 hp and 420 tq for the LS3 to 400 hp and 410 tq for the L99.

08-24-2009, 04:12 PM	#7
lbs13 Wilmes Winner! Drives: RS/1SS/IBM Join Date: Aug 2009 Location: Walters, ok Posts: 33 View My Garage	What exactly is envoled with a good "tune" with one of these. I'm one of the old caburated guys, been out of it all for a few years. They just hook it to a laptop or what?

08-24-2009, 04:40 PM	#9
lbs13 Wilmes Winner! Drives: RS/1SS/IBM Join Date: Aug 2009 Location: Walters, ok Posts: 33 View My Garage	Anything we can do and keep the warranty, at least that is worth doing?

08-25-2009, 02:34 AM	#14
Gentry78 HOOK'EM Drives: 97 c1500/92 olds Join Date: Oct 2008 Location: Texas Posts: 5,279	neither are bad both are great could one be better then the other for you and your overall goal and intentions for the car sure. but that only comes down to what tranny you prefer auto or manual both are really the same when it comes to modding, one is the same as it's been for a long time, the other is slightly different due to newer technology(that actually works this time lol)