SBC cam questions
Thread Starter
Le Mans Master
Joined: Jan 2004
Posts: 8,295
Likes: 30
From: one night in Bangkok you are never lonely
SBC cam questions
I am looking to change out my mild Edelbrock Performer hydraulic cam.
I want a little more power and a lumpy idle with out loosing vacuum.
I have the Edelbrock Performer RPM heads and intake with a little over 9 to 1 compression. I am looking at the Edelbrock 5002 that should work ok with my heads and still use hydraulic lifters.
Is there a better cam available?
I want a little more power and a lumpy idle with out loosing vacuum.
I have the Edelbrock Performer RPM heads and intake with a little over 9 to 1 compression. I am looking at the Edelbrock 5002 that should work ok with my heads and still use hydraulic lifters.
Is there a better cam available?
Last edited by Bangkok Dean; May 24, 2007 at 12:34 PM.
Thread Starter
Le Mans Master
Joined: Jan 2004
Posts: 8,295
Likes: 30
From: one night in Bangkok you are never lonely
What do you think?
Le Mans Master
Joined: Oct 2004
Posts: 5,269
Likes: 54
From: Orlando Florida
St. Jude Donor '05
Summit 1103 would be a nice upgrade and still be driveable with good low end power and vacuum. You'll need 1.6 ratio rocker arms, the lift is a little low with stock rocker arms.
Brand: Summit
Product Line: Summit Camshafts
Part Type: Camshafts
Cam Style: Hydraulic flat tappet
Basic Operating RPM Range: 2,000-4,500
Intake Duration at 050 inch Lift: 214
Exhaust Duration at 050 inch Lift: 224
Duration at 050 inch Lift: 214 int./224 exh.
Advertised Intake Duration: 272
Advertised Exhaust Duration: 282
Advertised Duration: 272 int./282 exh.
Intake Valve Lift with Factory Rocker Arm Ratio: 0.442 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.465 in.
Valve Lift with Factory Rocker Arm Ratio: 0.442 int./0.465 exh. lift
Lobe Separation (degrees): 112
Intake Valve Lash: 0.000 in.
Exhaust Valve Lash: 0.000 in.
Computer Controlled Compatible: No
Quantity: Sold individually.
Brand: Summit
Product Line: Summit Camshafts
Part Type: Camshafts
Cam Style: Hydraulic flat tappet
Basic Operating RPM Range: 2,000-4,500
Intake Duration at 050 inch Lift: 214
Exhaust Duration at 050 inch Lift: 224
Duration at 050 inch Lift: 214 int./224 exh.
Advertised Intake Duration: 272
Advertised Exhaust Duration: 282
Advertised Duration: 272 int./282 exh.
Intake Valve Lift with Factory Rocker Arm Ratio: 0.442 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.465 in.
Valve Lift with Factory Rocker Arm Ratio: 0.442 int./0.465 exh. lift
Lobe Separation (degrees): 112
Intake Valve Lash: 0.000 in.
Exhaust Valve Lash: 0.000 in.
Computer Controlled Compatible: No
Quantity: Sold individually.
Thread Starter
Le Mans Master
Joined: Jan 2004
Posts: 8,295
Likes: 30
From: one night in Bangkok you are never lonely
Summit 1103 would be a nice upgrade and still be driveable with good low end power and vacuum. You'll need 1.6 ratio rocker arms, the lift is a little low with stock rocker arms.
Brand: Summit
Product Line: Summit Camshafts
Part Type: Camshafts
Cam Style: Hydraulic flat tappet
Basic Operating RPM Range: 2,000-4,500
Intake Duration at 050 inch Lift: 214
Exhaust Duration at 050 inch Lift: 224
Duration at 050 inch Lift: 214 int./224 exh.
Advertised Intake Duration: 272
Advertised Exhaust Duration: 282
Advertised Duration: 272 int./282 exh.
Intake Valve Lift with Factory Rocker Arm Ratio: 0.442 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.465 in.
Valve Lift with Factory Rocker Arm Ratio: 0.442 int./0.465 exh. lift
Lobe Separation (degrees): 112
Intake Valve Lash: 0.000 in.
Exhaust Valve Lash: 0.000 in.
Computer Controlled Compatible: No
Quantity: Sold individually.
Brand: Summit
Product Line: Summit Camshafts
Part Type: Camshafts
Cam Style: Hydraulic flat tappet
Basic Operating RPM Range: 2,000-4,500
Intake Duration at 050 inch Lift: 214
Exhaust Duration at 050 inch Lift: 224
Duration at 050 inch Lift: 214 int./224 exh.
Advertised Intake Duration: 272
Advertised Exhaust Duration: 282
Advertised Duration: 272 int./282 exh.
Intake Valve Lift with Factory Rocker Arm Ratio: 0.442 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.465 in.
Valve Lift with Factory Rocker Arm Ratio: 0.442 int./0.465 exh. lift
Lobe Separation (degrees): 112
Intake Valve Lash: 0.000 in.
Exhaust Valve Lash: 0.000 in.
Computer Controlled Compatible: No
Quantity: Sold individually.
Cam Style: Hydraulic flat tappet
Basic Operating RPM Range: 1,500-6,500
Intake Duration at 050 inch Lift: 232
Exhaust Duration at 050 inch Lift: 234
Duration at 050 inch Lift: 232 int./234 exh.
Advertised Intake Duration: 292
Advertised Exhaust Duration: 300
Advertised Duration: 292 int./300 exh.
Intake Valve Lift with Factory Rocker Arm Ratio: 0.488 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.488 in.
Valve Lift with Factory Rocker Arm Ratio: 0.488 int./0.488 exh. lift
Lobe Separation (degrees): 108
Le Mans Master
Joined: Oct 2004
Posts: 5,269
Likes: 54
From: Orlando Florida
St. Jude Donor '05
This is the info on the EDL-5002
Cam Style: Hydraulic flat tappet
Basic Operating RPM Range: 1,500-6,500
Intake Duration at 050 inch Lift: 232
Exhaust Duration at 050 inch Lift: 234
Duration at 050 inch Lift: 232 int./234 exh.
Advertised Intake Duration: 292
Advertised Exhaust Duration: 300
Advertised Duration: 292 int./300 exh.
Intake Valve Lift with Factory Rocker Arm Ratio: 0.488 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.488 in.
Valve Lift with Factory Rocker Arm Ratio: 0.488 int./0.488 exh. lift
Lobe Separation (degrees): 108
Cam Style: Hydraulic flat tappet
Basic Operating RPM Range: 1,500-6,500
Intake Duration at 050 inch Lift: 232
Exhaust Duration at 050 inch Lift: 234
Duration at 050 inch Lift: 232 int./234 exh.
Advertised Intake Duration: 292
Advertised Exhaust Duration: 300
Advertised Duration: 292 int./300 exh.
Intake Valve Lift with Factory Rocker Arm Ratio: 0.488 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.488 in.
Valve Lift with Factory Rocker Arm Ratio: 0.488 int./0.488 exh. lift
Lobe Separation (degrees): 108
Thread Starter
Le Mans Master
Joined: Jan 2004
Posts: 8,295
Likes: 30
From: one night in Bangkok you are never lonely
I've had the Performer RPM cam and I did not like it all all, the numbers are similar to what you posted (234-240, .500" lift). It's too much cam for a low CR small block, vacuum was bad as well.... I then downgraded to the performer cam which was big step down... more like a truck camshaft.... the 1103 cam is pretty much between the two and is reasonably priced, Comp, Crane or lunati have similar grinds.
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Advanced
Joined: Jun 2004
Posts: 93
Likes: 0
From: Southgate MI
Just ran across this the other day. It might be a look at if you want lope.
http://www.compcams.com/thumpr/
LL&P
Tom1701
http://www.compcams.com/thumpr/
LL&P
Tom1701
Le Mans Master
Joined: Sep 2001
Posts: 7,739
Likes: 630
From: Unreconstructed, South Carolina
Thread Starter
Le Mans Master
Joined: Jan 2004
Posts: 8,295
Likes: 30
From: one night in Bangkok you are never lonely
Just ran across this the other day. It might be a look at if you want lope.
http://www.compcams.com/thumpr/
LL&P
Tom1701
http://www.compcams.com/thumpr/
LL&P
Tom1701
Now if someone were to buy some Steelshields then maybe.
Le Mans Master
Joined: Apr 2006
Posts: 5,403
Likes: 95
This is the info on the EDL-5002
Cam Style: Hydraulic flat tappet
Basic Operating RPM Range: 1,500-6,500
Intake Duration at 050 inch Lift: 232
Exhaust Duration at 050 inch Lift: 234
Duration at 050 inch Lift: 232 int./234 exh.
Advertised Intake Duration: 292
Advertised Exhaust Duration: 300
Advertised Duration: 292 int./300 exh.
Intake Valve Lift with Factory Rocker Arm Ratio: 0.488 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.488 in.
Valve Lift with Factory Rocker Arm Ratio: 0.488 int./0.488 exh. lift
Lobe Separation (degrees): 108
Cam Style: Hydraulic flat tappet
Basic Operating RPM Range: 1,500-6,500
Intake Duration at 050 inch Lift: 232
Exhaust Duration at 050 inch Lift: 234
Duration at 050 inch Lift: 232 int./234 exh.
Advertised Intake Duration: 292
Advertised Exhaust Duration: 300
Advertised Duration: 292 int./300 exh.
Intake Valve Lift with Factory Rocker Arm Ratio: 0.488 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.488 in.
Valve Lift with Factory Rocker Arm Ratio: 0.488 int./0.488 exh. lift
Lobe Separation (degrees): 108
Mid range upper rpm cam with 3.08 rear gearing= bad combo.
Last edited by Little Mouse; May 24, 2007 at 12:30 PM.
Thread Starter
Le Mans Master
Joined: Jan 2004
Posts: 8,295
Likes: 30
From: one night in Bangkok you are never lonely
Thread Starter
Le Mans Master
Joined: Jan 2004
Posts: 8,295
Likes: 30
From: one night in Bangkok you are never lonely
This is what I have now, runs good but idles too smooth.It is a 350.
Product Line: Edelbrock Performer-Plus Cam and Lifter Kits
Part Type: Camshaft and Lifter Kits
Cam Style: Hydraulic flat tappet
Basic Operating RPM Range: Idle-5,500
Intake Duration at 050 inch Lift: 204
Exhaust Duration at 050 inch Lift: 214
Duration at 050 inch Lift: 204 int./214 exh.
Advertised Intake Duration: 278
Advertised Exhaust Duration: 288
Advertised Duration: 278 int./288 exh.
Intake Valve Lift with Factory Rocker Arm Ratio: 0.420 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.442 in.
Valve Lift with Factory Rocker Arm Ratio: 0.420 int./0.442 exh. lift
Lobe Separation (degrees): 112
Product Line: Edelbrock Performer-Plus Cam and Lifter Kits
Part Type: Camshaft and Lifter Kits
Cam Style: Hydraulic flat tappet
Basic Operating RPM Range: Idle-5,500
Intake Duration at 050 inch Lift: 204
Exhaust Duration at 050 inch Lift: 214
Duration at 050 inch Lift: 204 int./214 exh.
Advertised Intake Duration: 278
Advertised Exhaust Duration: 288
Advertised Duration: 278 int./288 exh.
Intake Valve Lift with Factory Rocker Arm Ratio: 0.420 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.442 in.
Valve Lift with Factory Rocker Arm Ratio: 0.420 int./0.442 exh. lift
Lobe Separation (degrees): 112
Le Mans Master
Joined: Apr 2006
Posts: 5,403
Likes: 95
it probably won't give you enough rumpity idle you want. the
SUM-1104 with 224 at .050 duration will give you the rumpity
but not as good a match for your gearing as the SUM-1103.
If your willing to spend more money this high lift cam
has duration figures in between the two summit cams and has
better lift.
Part # LUN-60102, $122.39
int. dur. .050, 219
ex. dur. .050, 227
int. lift, 468
ex. lift, 489
LSA 112
Thread Starter
Le Mans Master
Joined: Jan 2004
Posts: 8,295
Likes: 30
From: one night in Bangkok you are never lonely
SUM-1103 would be a good torque cam for your 3.08 rear, but
it probably won't give you enough rumpity idle you want. the
SUM-1104 with 224 at .050 duration will give you the rumpity
but not as good a match for your gearing as the SUM-1103.
If your willing to spend more money this high lift cam
has duration figures in between the two summit cams and has
better lift.
Part # LUN-60102, $122.39
int. dur. .050, 219
ex. dur. .050, 227
int. lift, 468
ex. lift, 489
LSA 112
it probably won't give you enough rumpity idle you want. the
SUM-1104 with 224 at .050 duration will give you the rumpity
but not as good a match for your gearing as the SUM-1103.
If your willing to spend more money this high lift cam
has duration figures in between the two summit cams and has
better lift.
Part # LUN-60102, $122.39
int. dur. .050, 219
ex. dur. .050, 227
int. lift, 468
ex. lift, 489
LSA 112
the SUM-1104 is not much diffrent tham what i have now.
Last edited by Bangkok Dean; May 24, 2007 at 02:10 PM.
Le Mans Master
Joined: Sep 2001
Posts: 7,739
Likes: 630
From: Unreconstructed, South Carolina
Perhaps someone didn't get the point ... everythings a tradeoff ... lumpy v. vac & shiney v. cheap.
Sealed power has cam similar to lun60102.
SP # CS1062R ....... 220/231, .468/.480 ICL 110
Check w/ fine69 on "other" forum ... he's running it & quite pleased.
Sealed power has cam similar to lun60102.
SP # CS1062R ....... 220/231, .468/.480 ICL 110
Check w/ fine69 on "other" forum ... he's running it & quite pleased.