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

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Old 05-04-2010, 05:11 PM   #1
The 2010 Sin
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XP Racing Cam Job

Looks like the car is going to Brett at XP-Racing in OKC on the 18th of this month!!!! :-)

We're doing a full custom cam job and tune on the vehicle.

Cam grind is as follows:
231/236 .641"/.615" 111 LSA

I'm going to keep my setup the same that I have now to see what additional power this cam puts down, then we will possibly open it up with long tubes in June. I have no intention of racing this car since it has 350lbs+ worth of stereo equipment in the trunk. All Im looking for is that Lope and that choppy sound that the 6.2L should have! :-)


Current Mods:

Cold air intake
ADMperformance.com offroad downpipes
Flowmaster AT catback exhaust



I will post on the processes and you know I will have a video or two, One on the dyno and one as I did all of my exhaust comparisons.
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Old 05-04-2010, 09:53 PM   #2
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damn you beat me to it! lol...ill be having brett install my head/cam package at the end of the month!!! ironically enough I've been looking at that exact same cam from TSP! Let me know how you like it cuz i dont know when the next meet & greet is in okc so might not be there in time? congrats man!
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Old 05-04-2010, 10:02 PM   #3
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Im super pumped about it. Cant decide on that cam or the Chucks tuning stage 2 cam, since the guy wont spill the specs on that one i guess i will do the TSP. :-/ OH WELL! it will be hella nasty either way! hehe

too bad you cant make the tulsa event on the 22nd! Hard Rock, my bar, and you can hear my new sound system and cam at the same time.

Zach
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Old 05-04-2010, 11:37 PM   #4
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Pretty radical cam.
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Old 05-05-2010, 12:20 AM   #5
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i wish i could man if only it was a few days later! oh by the way matt or jason i forget which one i was talking to from TSP said the biggest you can go on that perticular cam with stock heads is a 112 lsa so you might hit some P/V clearance issues with a 111 lsa

Last edited by Novianca; 05-05-2010 at 05:39 PM.
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Old 05-05-2010, 12:29 AM   #6
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May have a P/V clearance issue but I would be more concerned with cylinder pressure with his cam choice.
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Old 05-05-2010, 01:09 AM   #7
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Brett is a very talented and knowledgeable installer/tuner. He said I wont have any issues it will be a healthy but streetable setup, but i did have to change pushrods, springs, retainers etc. for this setup.
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Old 05-05-2010, 01:34 AM   #8
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Quote:
Originally Posted by The 2010 Sin View Post
Brett is a very talented and knowledgeable installer/tuner. He said I wont have any issues it will be a healthy but streetable setup, but i did have to change pushrods, springs, retainers etc. for this setup.

Fair enough.

Remember the more overlap you have the less cylinder pressure meaning if you do not bump the compression up you will have very poor low to mid rpm performance and poor driveability. Something to consider/think about.
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Old 05-05-2010, 02:04 AM   #9
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Originally Posted by wbt View Post
Fair enough.

Remember the more overlap you have the less cylinder pressure meaning if you do not bump the compression up you will have very poor low to mid rpm performance and poor driveability. Something to consider/think about.

By all means let me know if I am wrong here, but from what I've read in this article (http://www.gmhightechperformance.com...son/index.html) a cam like that would cause INCREASED pressure which inturn makes it less streatable and less driveable.


So from MY impression of what that article says you are correct, in a sence, but have your pressure thinking backwards. Oh and I am in no way bashing your comment so by all means correct me if I am the one who has it backwards, just trying to provide info and learn at the same time. Thats why I read so much on this forum, to learn more.
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Old 05-05-2010, 10:49 AM   #10
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Well we changed our minds last minute.. no longer doing a TSP setup I will be doing a custom grind of 236/244 .602/.612 lift. with a 112 LSA
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Old 05-05-2010, 05:29 PM   #11
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Cant wait to hear this beast! :-)
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Old 05-05-2010, 05:37 PM   #12
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Dang that looks like a pretty healthy cam lol sweet!
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Old 05-05-2010, 05:57 PM   #13
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204/211 .551/.525 @ 117 LSA (Stock Cam)
236/244 .602/.612 @ 112 LSA (New Cam)
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Old 05-05-2010, 10:27 PM   #14
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Quote:
Originally Posted by Novianca View Post
By all means let me know if I am wrong here, but from what I've read in this article (http://www.gmhightechperformance.com...son/index.html) a cam like that would cause INCREASED pressure which inturn makes it less streatable and less driveable.


So from MY impression of what that article says you are correct, in a sence, but have your pressure thinking backwards. Oh and I am in no way bashing your comment so by all means correct me if I am the one who has it backwards, just trying to provide info and learn at the same time. Thats why I read so much on this forum, to learn more.
Thanks for checking into and reading about this. The following will help explain cylinder pressure and it's importance to performance:

http://www.wighat.com/fcr3/camtruth.htm

A nice article discussing overlap:

http://compcams.com/Community/Articl...?ID=1726205736

After reading these one will note there is a fine balance to maintaining optimal performance. The cam is the heart of the engine. It is critical to getting it right. I.E. increased flow with the right amount of cylinder pressure maintained.

In short - a high amount of overlap requires increasing the compression ratio of the motor to help reduce the loss of low to mid range power. This is accomplished by either reducing the combustion chamber size from milling the heads or using domed pistons. I prefer to reduce the combustion chamber size by milling the heads vs. using domed pistons. A flat top piston will allow for more complete combustion = more power. Some engine builders may feel differently but that is my preference. I also advocate the use of angle milling to help un-shroud valves. That is a separate discussion however.

Hope that all makes sense.
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Old 05-06-2010, 12:40 PM   #15
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interesting read.
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Old 05-06-2010, 06:19 PM   #16
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The new cam i've chosen is large in very different aspects. No more changing my mind now the new one has already shipped! :-) im happy with my decision.
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Old 05-06-2010, 06:26 PM   #17
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Very cool. Let us know how you like it.
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Old 05-06-2010, 06:40 PM   #18
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yeah after 5months of research it seems like the LS motors like mid range cams a little bit more versus the larger cams....you lose a little bit of the power up top but you get alot more low end torque which is what i like and spend most of my time....the only time i really ever go over 4500rpm is usualy at the track which i only go ever other week or so ........... but can't wait to hear your cam though! other then me you're the only other person i've seen in the OKC area that is camming thier 5th gen
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Old 05-06-2010, 06:57 PM   #19
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This cam really has my interest at the moment:

http://www.camaro5.com/forums/showthread.php?t=73140
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Old 05-06-2010, 07:52 PM   #20
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sounds sweet. LETS SEE IF YOU CAN GUESS!!! :-)

There is a youtube of my exact cam setup, i cant tell you which one because the specs are secret.
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Old 05-06-2010, 09:17 PM   #21
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proly the same one i want, chucks tuning, IOM car, sounds rediculous!!! please o please give me the specs
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Old 05-06-2010, 09:27 PM   #22
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Now if i said yes Kurtisp that would defeat the purpose of this cam being secret. But you should get this cam you will really like it.
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Old 05-06-2010, 09:35 PM   #23
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would like to hear some sound and video when you get it done.
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Old 05-06-2010, 09:50 PM   #24
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sounds like it will be a good set up
the cams we have installed in our customers cars they have loved
let us know how ya like it
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Old 05-06-2010, 09:59 PM   #25
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Quite excited myself. If the parts show up sooner im gonna be asking Brett to sneak me in sooner! :-)
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