Camshaft question
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More Turbo
Joined: Jan 2000
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From: Pasadena US
Camshaft question
One of the extra parts that came with my head purchase, was a new Comp Cams camshaft. The number on it is a core number 37-000-5. Then there are two lobe numbers 5400 and 5441, which is a .206 @ .050 and 212@.050 duration.Lobe lift is .288 and .298 respectively. . . so to me, not a very aggressive cam. But I am not very experienced in Y-Blocks. How does this profile work in a Y-Block? And one else have this cam? Was it a manufacture to buyer request type of thing, since it is listed as a core and lobe profiles, rather than a cam that is sold normally with typical write up, etc.
Post Fiend
Joined: Apr 2002
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From: Waterloo, Iowa
Y Blocks Forever is a website that deals with Y-blocks exclusively. I remember reading something there about defective Comp Cam Y-block cam grinds recently, so I looked it up to be sure:
"Last year I had a custom Comp Cam given to me for the EMC engine as a sponsorship, but we could not use the cam due to trying to advance it as suggested. The lobes were all over the place in the 2* and 4* advanced position, causing us to go back to the Isky. I recently had this confirmed when another brand of camshaft was custom ground for our EMC entry for this year, and straight up, it was Ok, but when we went to advance it, one bank was retarded, and the other was advanced, making it unusable. I sent the camshaft back, and it was put on the Cam Doctor machine and confirmed that it had been ground wrong according to the industry standard information. After obtaining the correct specifications for lifter bore angles, the camshaft has been reground and parkerized, and in on its way back to us for dyno testing. Anything other than stock Ford or Iskenderian camshafts should be degreed if you are serious about performance gains without valve to piston, valve to cylinder wall, interference issues or degraded performance."
"Last year I had a custom Comp Cam given to me for the EMC engine as a sponsorship, but we could not use the cam due to trying to advance it as suggested. The lobes were all over the place in the 2* and 4* advanced position, causing us to go back to the Isky. I recently had this confirmed when another brand of camshaft was custom ground for our EMC entry for this year, and straight up, it was Ok, but when we went to advance it, one bank was retarded, and the other was advanced, making it unusable. I sent the camshaft back, and it was put on the Cam Doctor machine and confirmed that it had been ground wrong according to the industry standard information. After obtaining the correct specifications for lifter bore angles, the camshaft has been reground and parkerized, and in on its way back to us for dyno testing. Anything other than stock Ford or Iskenderian camshafts should be degreed if you are serious about performance gains without valve to piston, valve to cylinder wall, interference issues or degraded performance."
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Joined: Jan 2000
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From: Pasadena US
Cargo Master
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That is a very mild cam so I would not recommend it because you should be able to go a little bigger without sacrificing anything at all.
For a very tame idle, a regrind of the '57 cam or something like an isky E4 would be good. From there, it just boils down to the compromise of sound and driveability that you want.
A Y-Block behaves the same as any other 4 stroke pushrod engine so if you're familiar with anything else of similar displacement, then the results of a given cam profile will be about the same.
For a very tame idle, a regrind of the '57 cam or something like an isky E4 would be good. From there, it just boils down to the compromise of sound and driveability that you want.
A Y-Block behaves the same as any other 4 stroke pushrod engine so if you're familiar with anything else of similar displacement, then the results of a given cam profile will be about the same.
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Thread Starter
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More Turbo
Joined: Jan 2000
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From: Pasadena US
That is a very mild cam so I would not recommend it because you should be able to go a little bigger without sacrificing anything at all.
For a very tame idle, a regrind of the '57 cam or something like an isky E4 would be good. From there, it just boils down to the compromise of sound and driveability that you want.
A Y-Block behaves the same as any other 4 stroke pushrod engine so if you're familiar with anything else of similar displacement, then the results of a given cam profile will be about the same.
For a very tame idle, a regrind of the '57 cam or something like an isky E4 would be good. From there, it just boils down to the compromise of sound and driveability that you want.
A Y-Block behaves the same as any other 4 stroke pushrod engine so if you're familiar with anything else of similar displacement, then the results of a given cam profile will be about the same.
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From: W (BY GOD) V
Moderator
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From: Southern California
Comp is a cam that I would avoid like the plague...…. a "McDonald's" type company/atmosphere with more cam related failures than I have ever seen or even heard of by any of the "family" owned cam companies.....and I mean some really ugly failures...… actually, I shouldn't refer to them as a MD company as MD has a lot of quality control whereas IMHO, Comp is just throwing their products out the door as fast as they can...… heck, what do you expect from the prez who is an attorney by trade (: !
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More Turbo
Joined: Jan 2000
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From: Pasadena US
Comp is a cam that I would avoid like the plague...…. a "McDonald's" type company/atmosphere with more cam related failures than I have ever seen or even heard of by any of the "family" owned cam companies.....and I mean some really ugly failures...… actually, I shouldn't refer to them as a MD company as MD has a lot of quality control whereas IMHO, Comp is just throwing their products out the door as fast as they can...… heck, what do you expect from the prez who is an attorney by trade (: !
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Joined: Jan 2000
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From: Pasadena US
Cargo Master
Joined: Mar 2002
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From: W (BY GOD) V
I GOOGLED the CORE NUMBER and I did not notice the PN differences.
I would contact COMP CAM TECH (1-800-999-0853) and see if they can explain what is going on. If for some reason it is not something you can use, I would conact ISKY for a FYB.
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More Turbo
Joined: Jan 2000
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From: Pasadena US
Moderator
Joined: Aug 2002
Posts: 6,100
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From: Southern California
To validate this point further as to the “McDonald’s environment” of which operate:
Tech Support Issue:
http://saacforum.com/index.php?topic=901.10;wap2
Valvetrain Failure:
Classic Cam Failure:
http://www.hotrodders.com/forum/more...ure-48577.html
Cam Lobe Fracturing:
http://www.yellowbullet.com/forum/sh...d.php?t=458553
Cam Failure:
http://www.camaros.net/forums/showthread.php?t=121078
FAIL Comp cams trunion- Rockwell hardness low:
http://www.corvetteforum.com/forums/...n-upgrade.html
2nd Cam Failure:
http://www.performanceboats.com/gn7-...p-failure.html
Major problems with Comp Cams hydraulic roller lifters :
http://www.dodgecharger.com/forum/in...c,61280.0.html
COMP CAMS FAIL (endless)
http://truestreetcars.com/forums/gen...cams-fail.html
Comp Cams Ultra Gold Aluminum Roller Rocker Failure
http://www.ls1gto.com/forums/showthread.php?t=388981
Comp Cams 918 spring failures
http://www.camaroz28.com/forums/ls1-...ilures-526319/
Cam Failure:
http://www.camaro5.com/forums/showthread.php?t=389981
Ok...I'll shut up now,,,,,,,GRIN!