cam selection
#1
cam selection
What cam is everybody running or what do tall recommend for a tpi 350. What's the biggest I can run with stock heads? And still perform good. Heads are stock aluminum 10088113
#2
Member
Re: cam selection
Valve lift is the biggest limit on stock heads. something like the old compucam 2032 is probably about as big as you can go. I'm not sure if you can use a ZZ4 cam.
#4
Member
Re: cam selection
Scoggin Dickey says .525 is max lift on stock 113's. I would recommend you do a search here and corvetteforum for max valve lift with 113's and search google as well.
http://www.corvetteforum.com/forums/...113-heads.html
http://www.corvetteforum.com/forums/...113-heads.html
#6
Member
Re: cam selection
Scoggin Dickey is a part retailer. Check the link I provided. Most cams advertised lift is calculated with a 1.5 rocker arm ratio.
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#8
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Car: 1988 Camaro
Engine: 355, 10.34:1, 249/252 @.050", IK200
Transmission: TH-400, 3500 stall 9.5" converter
Axle/Gears: Ford 9", detroit locker, 3.89 gears
Re: cam selection
The L98 heads do not flow very well past .500" lift. So no real reason in looking at big lift number cams. It will just be valvetrain stress with no real gain.
.490" to .515" max lift range
But duration and LSA matters more than lift anyway.
The duration must match your compression and engine size.. What engine do you have?
Here you say 350, in another post asking this same question you say 305?
I know you want the wild race car sounding car, but it's gonna kill off what power you do have.
With your 9.5:1 305 the biggest I would run would be something like a 218/224 @.050" with a 110 or 112 LSA.
These cams would work good.
http://www.summitracing.com/parts/cc...make/chevrolet
http://www.summitracing.com/parts/is...make/chevrolet
http://www.summitracing.com/parts/hr...make/chevrolet
You can go bigger but you will kill power. The 305's tiny bores can't move air at high RPM so why use a big cam to shift the power up to a higher RPM range that your engine can't breath at.
If it is a 350 with 9.5 to 10.0 compression then you can go about 5-6 degrees bigger and be ok
.490" to .515" max lift range
But duration and LSA matters more than lift anyway.
The duration must match your compression and engine size.. What engine do you have?
Here you say 350, in another post asking this same question you say 305?
I know you want the wild race car sounding car, but it's gonna kill off what power you do have.
With your 9.5:1 305 the biggest I would run would be something like a 218/224 @.050" with a 110 or 112 LSA.
These cams would work good.
http://www.summitracing.com/parts/cc...make/chevrolet
http://www.summitracing.com/parts/is...make/chevrolet
http://www.summitracing.com/parts/hr...make/chevrolet
You can go bigger but you will kill power. The 305's tiny bores can't move air at high RPM so why use a big cam to shift the power up to a higher RPM range that your engine can't breath at.
If it is a 350 with 9.5 to 10.0 compression then you can go about 5-6 degrees bigger and be ok
#9
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Car: 1988 Camaro
Engine: 355, 10.34:1, 249/252 @.050", IK200
Transmission: TH-400, 3500 stall 9.5" converter
Axle/Gears: Ford 9", detroit locker, 3.89 gears
Re: cam selection
.
Last edited by Night rider327; 11-22-2014 at 02:27 AM. Reason: Double post
#11
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Car: 1988 Camaro
Engine: 355, 10.34:1, 249/252 @.050", IK200
Transmission: TH-400, 3500 stall 9.5" converter
Axle/Gears: Ford 9", detroit locker, 3.89 gears
Re: cam selection
I just noticed all my links to cams are dead.
Here's the part numbers to some cams that would work great
12-238-2
12-208-2
112571-12
12-365-4
12-552-4
12-239-3
10120702
12-209-2
12-556-4
Look those up on summit's site. Any one of those would be a good pick and about the largest you want to run in a mild 305
Here's the part numbers to some cams that would work great
12-238-2
12-208-2
112571-12
12-365-4
12-552-4
12-239-3
10120702
12-209-2
12-556-4
Look those up on summit's site. Any one of those would be a good pick and about the largest you want to run in a mild 305
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