Comp Cam 12-388-4
Thread Starter
4th Gear
Joined: May 2009
Posts: 4
Likes: 0
From: Alvin Texas
Comp Cam 12-388-4
Has anyone installed or used this cam? if so can you tell me what you think about it. The Part Number: CCA-12-388-4
Cam Style: Hydraulic flat tappet
Basic Operating RPM Range: 1,000-5,000
Intake Duration at 050 inch Lift: 206
Exhaust Duration at 050 inch Lift: 212
Duration at 050 inch Lift: 206 int./212 exh.
Advertised Intake Duration: 252
Advertised Exhaust Duration: 260
Advertised Duration: 252 int./260 exh.
Intake Valve Lift with Factory Rocker Arm Ratio: 0.425 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.440 in.
Valve Lift with Factory Rocker Arm Ratio: 0.425 int./0.440 exh. lift
Lobe Separation (degrees): 112
Intake Valve Lash: 0.000 in.
Exhaust Valve Lash: 0.000 in.
Computer-Controlled Compatible: Yes
Grind Number: CS 252AH-12 (V-8 T.P.I.)
Thanks.
Cam Style: Hydraulic flat tappet
Basic Operating RPM Range: 1,000-5,000
Intake Duration at 050 inch Lift: 206
Exhaust Duration at 050 inch Lift: 212
Duration at 050 inch Lift: 206 int./212 exh.
Advertised Intake Duration: 252
Advertised Exhaust Duration: 260
Advertised Duration: 252 int./260 exh.
Intake Valve Lift with Factory Rocker Arm Ratio: 0.425 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.440 in.
Valve Lift with Factory Rocker Arm Ratio: 0.425 int./0.440 exh. lift
Lobe Separation (degrees): 112
Intake Valve Lash: 0.000 in.
Exhaust Valve Lash: 0.000 in.
Computer-Controlled Compatible: Yes
Grind Number: CS 252AH-12 (V-8 T.P.I.)
Thanks.
Last edited by bizz13; May 25, 2009 at 09:14 AM.
Burning Brakes
Joined: Dec 2003
Posts: 1,004
Likes: 7
From: Adelaide South Australia
http://performanceparts.com/part.php?partID=247317
Application:
Street
Comp Cams 12-388-4 Computer controlled hydraulic flat tappet camshaft.
Fits GM 305 and 350 cu.in V8 with TPI, Crossfire, or throttle body injection.
Comp Cams' camshaft for computer controlled engines can produce more torque and horsepower than stock and still retain compatibility with the stock ECM. It will work without sacrificing the engine's idle and it works great for everyday driving. There will be no affect on engine vacuum for accessories like power brakes and it also will not affect the engine's idle while the A/C is in operation.
RPM range: 1,000 to 5,000 rpm.
Duration at .050" lift: 206/212 (int/exh)
Valve lift with 1.5 rockers: .425"/.440" (int/exh)
Comp Cams 12-388-4
• More horsepower and torque than stock
• Compatible with stock ECM
• Good idle, great for daily driver
• No affect on vacuum accessories
50 state street legal
Seems like a very very mild replacement cam for a stocky EFI 305 / 350
Application:
Street
Comp Cams 12-388-4 Computer controlled hydraulic flat tappet camshaft.
Fits GM 305 and 350 cu.in V8 with TPI, Crossfire, or throttle body injection.
Comp Cams' camshaft for computer controlled engines can produce more torque and horsepower than stock and still retain compatibility with the stock ECM. It will work without sacrificing the engine's idle and it works great for everyday driving. There will be no affect on engine vacuum for accessories like power brakes and it also will not affect the engine's idle while the A/C is in operation.
RPM range: 1,000 to 5,000 rpm.
Duration at .050" lift: 206/212 (int/exh)
Valve lift with 1.5 rockers: .425"/.440" (int/exh)
Comp Cams 12-388-4
• More horsepower and torque than stock
• Compatible with stock ECM
• Good idle, great for daily driver
• No affect on vacuum accessories
50 state street legal
Seems like a very very mild replacement cam for a stocky EFI 305 / 350
Thread Starter
4th Gear
Joined: May 2009
Posts: 4
Likes: 0
From: Alvin Texas
my vet is a 1982 and it's stock.I have been restoring it and this is the only cam i can find that can be used with the crossfire injection.The last owner didn't use the right oil for the flat tappet cam. and it clatters when you first start it.it should be a upgrade and sound mild.
Burning Brakes
Joined: Dec 2003
Posts: 1,004
Likes: 7
From: Adelaide South Australia
I don't know much about the ECM used with the Crossfire engine...
Can it be custom tuned?
If so, then surely you can select any cam grind you want based on what other mods you do. eg heads, manifold headers etc etc
Can it be custom tuned?
If so, then surely you can select any cam grind you want based on what other mods you do. eg heads, manifold headers etc etc
Thread Starter
4th Gear
Joined: May 2009
Posts: 4
Likes: 0
From: Alvin Texas
from what i have read.The chip in the stock ECM can not be reprogramed but you can change it.
Thread Starter
4th Gear
Joined: May 2009
Posts: 4
Likes: 0
From: Alvin Texas
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