Track Car Cam
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Burning Brakes
Joined: Aug 2004
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From: Georgia
Track Car Cam
Looking for a cam for my 95 LT1 which is used only at the track(road Atlanta, Cmp, roebling). I will be doing headers and roller rockers too. Everything else on the motor will be stock. I would sacrifice some power for reliability. Any recommendations?
Le Mans Master
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Thread Starter
Burning Brakes
Joined: Aug 2004
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From: Georgia
Any idea on a ballpark power difference between that and an LT4 hot cam kit like this?
http://www.summitracing.com/parts/NAL-12480002/
http://www.summitracing.com/parts/NAL-12480002/
Intermediate
Joined: Jan 2011
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From: San ANtonio Texas
Try this....COMP Cams 280 Magnum on a 108 LCA in @ 4 degrees advance.
Valvetrain: COMP 26918 beehive springs, magnum roller tip rockers 1.6:1 ratio, COMP Magnum pushrods.
If you have the bucks, upgrade to an as cast EQ, Dart, RHS or Patriot head.
With a good flowing intake this build dynos at 440hp at 5500 rpm and 440 ft lbs. @4200 rpm.
Valvetrain: COMP 26918 beehive springs, magnum roller tip rockers 1.6:1 ratio, COMP Magnum pushrods.
If you have the bucks, upgrade to an as cast EQ, Dart, RHS or Patriot head.
With a good flowing intake this build dynos at 440hp at 5500 rpm and 440 ft lbs. @4200 rpm.
Thread Starter
Burning Brakes
Joined: Aug 2004
Posts: 832
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From: Georgia
After a bunch of reading I like the cc503 with 26918 beehive springs. I know which locks, rods and retainers to get, but the rockers they recommend are 1.52. Are these correct for this setup?
http://www.summitracing.com/parts/CCA-1418-16/
http://www.summitracing.com/parts/CCA-1418-16/
Last edited by The Panther; Mar 23, 2011 at 09:48 PM.
Le Mans Master
Joined: Oct 2007
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From: Akron Ohio
2025 Corvette of the Year Finalist - Modified
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I would use 1.6rr on that cam, as I think it would work out better than the 1.52s. The heads on these cars seem to like mid .5xx lift.
Race Director
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Safety Car
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From: Detroit's West Side MI
You are definately going to want to maximize your redline. I think you can go to about 6500 RPM with stock style lifters.
The hotcam is waaaay too mild. I'd go with a high lift, .575 or so (with 1.6RR). If you don't mind losing a little driveability you could even go higher. But you'll need snappier springs to get them closed quickly enough.
The hotcam is waaaay too mild. I'd go with a high lift, .575 or so (with 1.6RR). If you don't mind losing a little driveability you could even go higher. But you'll need snappier springs to get them closed quickly enough.
Le Mans Master
Joined: Oct 2007
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From: Akron Ohio
2025 Corvette of the Year Finalist - Modified
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You are definately going to want to maximize your redline. I think you can go to about 6500 RPM with stock style lifters.
The hotcam is waaaay too mild. I'd go with a high lift, .575 or so (with 1.6RR). If you don't mind losing a little driveability you could even go higher. But you'll need snappier springs to get them closed quickly enough.
The hotcam is waaaay too mild. I'd go with a high lift, .575 or so (with 1.6RR). If you don't mind losing a little driveability you could even go higher. But you'll need snappier springs to get them closed quickly enough.
And with stronger springs comes better pushrods, and lifters. Im not sure at what point the stock lifters start to compress but if you go too stiff on the springs it can actually collapse a hydraulic lifter. Not good.With stock heads I dont really see a need to go higher than .575, ported heads yes higher would work better. I think the cc503 with 1.6 rockers and a GOOD exhaust (longtubes with dual pipes out back) would get you where you are looking to go without going to a custom grind.
Le Mans Master
Joined: Oct 2007
Posts: 9,726
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From: Akron Ohio
2025 Corvette of the Year Finalist - Modified
2024 C5 of the Year Winner - Modified
2023 C5 of the Year Finalist - Modified
2022 C5 of the Year Finalist - Modified
St. Jude Donor '09-'10-'11
http://www.summitracing.com/parts/CCA-4808-8/
FWIW I am using these rockers by Scorpion on my current engine build:
http://www.summitracing.com/parts/SCC-SCP1002BL/