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Old 09-18-2021, 04:03 PM
AIR RAM AIR RAM is offline
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Default Unknown Camshaft Specs...

I have a Hydraulic flat tappet cam that I am trying to get more details about. It appears to be a custom Comp Cams grind but Im honestly not sure.

The numbers are all scribed onto the front of the cam.

I can make some guesses at what it is but would like to build a cam card for it.

Just wondering if anyone had some incite...

SPEED SAFE, NICK
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Old 09-18-2021, 04:59 PM
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It’s in there high energy line of lobes.
It’s single pattern and the -4 is 222 duration at .050”.
Lobe lift is .309” which would give .464” lift with a 1.5 rocker.
I am not 100% sure but I think the 10 is reference to a 110 lobe separation angle.

It likely has a power band of 1600 to 5600 would be my bet if I was putting money down!

It should be a good Cam in a 9.5 to 1 Comp 389 or 400, or a 9 to 1 comp 421 or 428.

For me with a street 455 it’s short on duration and the .525” valve lift I would like to see even with stock iron heads!

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Last edited by steve25; 09-18-2021 at 05:06 PM.
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Old 09-18-2021, 05:06 PM
AIR RAM AIR RAM is offline
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Thanks for the info Steve, I was trying to find the link to the comp cams high energy line back in the late 90's but could not find anything. I wasn't sure if the high energy line was around back in 1997 or not... its an old cam... LOL.

Thanks again.

SPEED SAFE, NICK

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Old 09-18-2021, 05:24 PM
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The only reason I was able to provide you with the info I did was because somehow I managed to save my Comp catalog from the late 80s, lol!

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Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs!
And he was not talking about 1/8 or 1/4 mile ETs!

1) 1940s 100% silver 4 cup tea server set.

Two dry rotted 14 x 10 Micky Thompson slicks.

1) un-mailed in gift coupon from a 1972 box of corn flakes.
Two pairs of brown leather flip flops, never seen more then 2 mph.

Education is what your left with once you forget things!
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Old 09-18-2021, 05:36 PM
Steve C. Steve C. is online now
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I agree, presume it is ground with a 110 LSA.
Unless custom all their High Energy hydraulic cams are ground with a 110 lobe separation.

The High Energy 268-4 is listed here on page 11 as lobe number 5212:

https://www.compcams.com/lobe-catalog




.

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  #6  
Old 09-18-2021, 08:08 PM
AIR RAM AIR RAM is offline
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Quote:
Originally Posted by steve25 View Post
.......... It likely has a power band of 1600 to 5600 would be my bet if I was putting money down!

It should be a good Cam in a 9.5 to 1 Comp 389 or 400, or a 9 to 1 comp 421 or 428.

For me with a street 455 it’s short on duration and the .525” valve lift I would like to see even with stock iron heads!
This is the cam I ran on my 350 with EDL Perf RPM Round Ports... 10.5:1cr... it ran real strong. I used to have the cam card kicking around but have no idea where I placed it. It pulled strong up to 6000 rpms.

SPEED SAFE, NICK

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Old 09-18-2021, 08:28 PM
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Quote:
Originally Posted by AIR RAM View Post
This is the cam I ran on my 350 with EDL Perf RPM Round Ports... 10.5:1cr... it ran real strong. I used to have the cam card kicking around but have no idea where I placed it. It pulled strong up to 6000 rpms.

SPEED SAFE, NICK
350 with round ports? You know you ain`t supposed to do that.

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Old 09-18-2021, 08:41 PM
AIR RAM AIR RAM is offline
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Quote:
Originally Posted by PunchT37 View Post
350 with round ports? You know you ain`t supposed to do that.
Back in 97 they said it couldn't be done... so I said, "hold my beer"... LOL

SPEED SAFE, NICK

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Old 09-18-2021, 08:52 PM
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Quote:
Originally Posted by AIR RAM View Post
Back in 97 they said it couldn't be done... so I said, "hold my beer"... LOL

SPEED SAFE, NICK
Love it. We used to terrorize the streets back in the `90`s with a `68 LeMans with a fiberglass front end. 350 with `68 RA2 heads, Crane "310" cam, A1 10 inch converter, 3.90 gears with N50`s out back.

And we were holding lots of beers then, too.

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Old 09-18-2021, 09:03 PM
Steve C. Steve C. is online now
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The Pontiac Edelbrock cylinder head official "runner volume wars" started with a post on the old Classical Pontiac board in May, 1998. From it the naysayers were off and running, like Paul Revere's famous ride...... yelling the 215 cc runner volume is too big !

Bwahahahahahahaha !


.

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'70 TA / 505 cid / same engine but revised ( previous best 10.63 at 127.05 )
Old information here:
http://www.hotrod.com/articles/0712p...tiac-trans-am/

Sponsor of the world's fastest Pontiac powered Ford Fairmont (engine)
5.14 at 140 mph (1/8 mile) , true 10.5 tire, stock type suspension
https://www.youtube.com/watch?v=qDoJnIP3HgE

Last edited by Steve C.; 09-18-2021 at 09:08 PM.
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