Turbo Grind cam has got to go!!!

[RedHeartbeat]

Comp Cams Extreme Energy FI Cam $250+shipping

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Used Comp Cam for turbo applications. 8000 miles. This is an Extreme Energy model with the very aggressive ramp angles and is designed for forced induction only. You will lose HP if you attempt to use this cam in a naturally aspirated engine unless you're running nitrous on an almost race-type engine. Specs are...

SERIAL # D 8917-05 SPEC CARD # 07125505
PART # 54-000-11 CAMSHAFT, LS1 CHEVY LS1/GEN III '97-UP

CORE C54-11I CAMSHAFT BLANK, LS1 1997 UP 5.7 CORVETTE Special
Grind
GRIND # LS1 3730 /3724 HR113+2

DURATION @ .050 INTAKE 240
DURATION @ .050 EXHAUST 228
LOBE LIFT INTAKE .3580
LOBE LIFT EXHAUST .3460

VALVE LIFT INTAKE .608
VALVE LIFT EXHAUST .588

LOBE SEPARATION 113.0

DURATION .006

INTAKE C/L 111.0

TAPPET LIFT INTAKE 289 degrees
TAPPET LIFT EXHAUST 277 degrees

CAM ADVANCE 2

VALVE TIMING .050
VALVE OPEN INTAKE 9
VALVE CLOSED INTAKE 51
VALVE OPEN EXHAUST 49
VALVE CLOSED EXHAUST 1-

JOURNAL DIAMETER STD 2.165

INTAKE LOBE ID 3730
EXHAUST LOBE ID 3724

DATE SETUP 01/25/2005

$250 plus shipping. Local pickup available in the DFW TX area.

[Red03SilSS]

I wonder if it would work in 6.0?

[RedHeartbeat]

Yeah, it will work but if you don't have forced induction, you'll lose power. It makes more HP than a normal cam would in an FI application but less in an naturally asprirated engine. The cam is designed to take advantage of the pressurized air pushing the fuel through the cylinders. The cams that guys are running with a 224/224 duration work better than this cam if you don't have FI. If a turbo is in the works, I'd go for it. Comp said that it's one of their best turbo grinds.

[motoxlifer]

Is this the cam you were currently running Red? Why would you lose hp? I mean I can see not getting the full potential out of your engine but actually losing hp over stock... ?

[OldSkool69]

I guess is cause the cam is design to hold compresion, probably is slowest that the original cam, cause is waiting for someone to make the job of pushing the air in and out.

The N/A cams most do this on Atmosfere presure, so the ramps most be fasters to let the air go out and let more air to go in........just guessing.

On my 2wd truck I'm going to STS, Allen told me I have to change my cam to take adventage of the GT67 turbo.....Do you think that cam would help me?

[RedHeartbeat]

Oh yeah, it sounds sweet too. You'll need springs that will handle the lift but it's an awesome cam. When I sprayed the NOS, the engine was a beast. It was recommended by Comp that I go back to a different cam since 99% of my drive time is naturally aspirated. They told me that the cam could still be a benefit if I was doing nothing but racing this engine and spraying NOS or using some kind of forced induction but they suggested a whole new profile for the 408 engine.

<div class='quotetop'>QUOTE(motoxlifer &#064; Aug 18 2006, 09&#58;01 AM) [snapback]61576[/snapback]</div>

Is this the cam you were currently running Red? Why would you lose hp? I mean I can see not getting the full potential out of your engine but actually losing hp over stock... ?
[/b]

Yeah, that was the cam I was running. The design was intended for a totally different purpose than what I was using it for. Comp told me to expect HP losses using that cam NA. With spray or FI it is hard to beat the profiles of that cam.

http://s47.photobucket.com/albums/f197/red...=headers038.flv

A little sound bite of the cam running NA.

[motoxlifer]

Not trying to argue or anything, but I just can&#39;t see a cam with that much duration and lift over stock regardless of it&#39;s profile or intended use causing a loss in power over stock.

[RedHeartbeat]

That&#39;s why they won&#39;t let us design camshafts.

[turboty]

I&#39;m very interested.

What springs and pushrods do I need for a stock &#39;99 5.3 with the STS kit.

Are you selling just the cam or do you have springs?

Thanks, TY

[RedHeartbeat]

I am running Manley dual springs with titanium retainers. They are staying for the new cam since it&#39;s going to be over .600 lift. Comp 918s aren&#39;t big enough for this cam. Billy at TRTTURBO can get you a nice set of Patriot Performance high lift springs for a very good price.

You&#39;ll need 7.4" long hardened pushrods for pretty much any comp cam.