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Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons Bolt-Ons | Intakes | Exhaust

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Old 05-04-2009, 07:14 AM   #1
DDA_Skull
 
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So the LS 376/515. Anyone going to upgrade?

I was looking around and I saw this page for upgrading your LS3 motor to be producing 515 Hp. Is anyone thinking about trying to upgrade? Wont it void the warrenty, or cause its a GMPP and if you have them install it would it be ok?

http://www.gmperformanceparts.com/En...1225&engCat=ls
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Old 05-04-2009, 07:29 AM   #2
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I'm not! Have a toy to play with in my garage now! Camaro I'll play with when the warranty runs out!
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Old 05-04-2009, 07:34 AM   #3
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Ill b upgrading ill take a look at the site later on
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Old 05-04-2009, 08:47 AM   #4
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I'll consider it. Would be nice to keep the original engine on a stand somewhere with very low miles on it.
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Old 05-04-2009, 08:59 AM   #5
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Any idea what it costs?
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Old 05-04-2009, 09:01 AM   #6
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I won't do the 515 swap, I will however get the LS3 thats IN the car changed with the hot cam... essentially it is the LS3 376/480 which is more then enough for me.
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Old 05-04-2009, 09:38 AM   #7
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Yeah, that is probably what i would do also.
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Old 05-04-2009, 09:47 AM   #8
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I wonder why the stock block rating 400hp is lower than the Camaro 426hp and the 436hp for the C6 Vette? Also would it still be 115hp gain on top of the Camaros 426hp rating putting it at 541hp instead of 515hp? Real good numbers at 515hp, 541hp wow!
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Old 05-04-2009, 09:49 AM   #9
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I would love to have 515 hp, but I dont want to go to a carburetor.
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Old 05-04-2009, 09:50 AM   #10
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Well because the motor that is producing the 400hp isn't the LS3 in the Camaro with the Standard Trans. The Automatic Camaro is coming with the L99 motor in it. So thats why it is alittle less horses. The vette have the Same LS3, just alittle hotter tuned.
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Old 05-04-2009, 11:50 AM   #11
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I saw this a few days ago. Just confirmed my choice to do either the GM hotcam or the ASA hotcam. Both should give you ~50hp with a tune. Throw in CAI, LT with exhaust, underdrive pulley, ported TB/MAF, FAST air manifold you should pass the 500hp mark pretty easily.....call it a day and work on some suspension stuff. Good post!
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Old 05-04-2009, 01:10 PM   #12
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Are there any plans for a hot cam and the l99?
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Old 05-05-2009, 06:57 PM   #13
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Are there any plans for a hot cam and the l99?
The L99 puts out less power due to the cam only, as far as I know. Just putting in an LS3 cam would give you the 426 hp from the LS3. They put a smaller cam due to the heavier valvetrain and to prevent wear and tear-and they also lowered the rev limiter on the L99. I'm sure plenty of guys will pull out those AFM lifters, put in a bigger cam and tune out the AFM. May not be exactly factory, but it can and will be done. So the answer to your question is you can use the same hot cam (or whatever you want), just have to swap out the lifters and get a tune-which you would need anyway with the cam swap.
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Old 05-05-2009, 07:01 PM   #14
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Love the carb!!
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Old 05-05-2009, 07:07 PM   #15
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I had a carb on my 86 and I always wished it was fuel injected. I understand where the appeal is but its just not my thing. Now a top mount throttle body instead of the typical front mount one? That would be bomb.
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Old 05-05-2009, 08:39 PM   #16
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Quote:
Originally Posted by rayhawk View Post
The L99 puts out less power due to the cam only, as far as I know. Just putting in an LS3 cam would give you the 426 hp from the LS3. They put a smaller cam due to the heavier valvetrain and to prevent wear and tear-and they also lowered the rev limiter on the L99. I'm sure plenty of guys will pull out those AFM lifters, put in a bigger cam and tune out the AFM. May not be exactly factory, but it can and will be done. So the answer to your question is you can use the same hot cam (or whatever you want), just have to swap out the lifters and get a tune-which you would need anyway with the cam swap.
L99 also runs a lower compression ratio (10.4:1) than the LS3 (10.7:1), which would also contribute to lower power output.
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Old 05-06-2009, 10:11 AM   #17
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Quote:
Originally Posted by DDA_Skull View Post
I was looking around and I saw this page for upgrading your LS3 motor to be producing 515 Hp. Is anyone thinking about trying to upgrade? Wont it void the warrenty, or cause its a GMPP and if you have them install it would it be ok?

http://www.gmperformanceparts.com/En...1225&engCat=ls
Will absolutely hands down void the warranty.



People, shop outside of GMPP for parts. There is a HUGE aftermarket for LSxs out there. Hundreds of different cam grinds.
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Old 05-06-2009, 10:27 AM   #18
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Will absolutely hands down void the warranty.



People, shop outside of GMPP for parts. There is a HUGE aftermarket for LSxs out there. Hundreds of different cam grinds.
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Old 12-05-2010, 11:24 PM   #19
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Did you do the hotcam swap? 525/525 @ 218/226 and 112 LSA? I know of one 2SS/RS M6 that made 432hp and 429 rwtrq @ 5600rpm It had full 3in Kooks with Long tube headers, high flow cats and CAI. Installed by GM dealer and the full warranty left intact. And the exhaust note and idle are SWEEEET. $ 4K for parts, labor and different GM grill. Given drivetrain loss, Crankshaft HP is atleast .5K
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Old 12-06-2010, 12:53 PM   #20
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Not me. I'm not too good with a carburetor. I've got one already and that's enough for me. Plus a big cam from LG, TSP, or any of the others will give you more power. Then you can put a carb on there and get even crazier.
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Old 12-06-2010, 02:01 PM   #21
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If you take a look at the LSA info ... It says you can build your own Z28 Camaro ... (Hint-Hint)
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Old 12-06-2010, 02:44 PM   #22
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EFI is many times better than a carb, it adjusts automatically for atmospheric changes. Its easy and cheap to retrofit an EFI systems, just get a truck ecu and harness from a salvage yard.

It certainly wouldn't be much of upgrade from an existing LS3 though.
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Old 12-06-2010, 02:45 PM   #23
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It's just a Cam and they rate it at flywheel(generously). The ASA Cam is not very good for these. The people here making 450rwhp -gm would rate it at 560hp.
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