09-11-2007, 12:48 PM | #1 | |
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"Dot to Dot" Valvetrain Tech
Pulled from Flowtech Induction.
Quote:
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1999 Ford F-150 Lariat |
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09-11-2007, 12:56 PM | #2 |
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Camshaft Degreeing Fundamentals
Instructive article from Ford Muscle on degreeing a camshaft.
http://www.fordmuscle.com/fundamentals/camdegreeing/ It's definitely worth a look if you're interested in dialing in your bump stick for optimal performance.
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1999 Ford F-150 Lariat Last edited by 1sicklx; 09-11-2007 at 12:59 PM. |
09-12-2007, 08:31 AM | #3 |
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For a custom grind, or high-end cam...definitely degree it in for max performance.
However, many of the cheaper cams (Alphabet cams, trick-flows, cheaper cranes, etc...) are all a few degrees off from one lobe to another, so degreeing one of them from say, TDC of cylinder number 1, might yield something totally different for the other cylinders. Generally, for these cams, putting it in dot-to-dot is sufficient. Mine runs like a raped-ape and it's never had a degree wheel on it.
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09-12-2007, 10:53 AM | #4 |
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I had a "B" cam which I had checked with a wheel and it was nearly dead on, I had actually checked it across three cylinders and it was right on for each.
This was when I worked at a machine shop as part of a school project. The owner taught me the how to's on this one. This was the only time I degreed a cam. On a "race" motor I would spend the time/money to do it. On a street car that sees redline rev's only sometimes, I wouldn't bother with it.
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09-14-2007, 11:40 AM | #5 |
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The last cam i got from Comp, Was 8 degrees off on # 4 cylinder. If you have a cam with close piston to valve clearnce, It is very wise to check EVERY cylinder. P.S. The guy at Comp said that that does not happen often, Thats when i found out they offer a race grind in every cam, Yes i does cost more, But in my opinion worth every penny.
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09-14-2007, 03:48 PM | #6 |
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What does their "race grind" offer? Is there a cam-doctor sheet with a mathematical representation of the lobe geometry? That is truly the best way to measure one. Plot the lobes out.
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09-15-2007, 05:06 AM | #7 |
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What i understood about their race grind, It is ground on a more closely kept in spec machine, that by the way is mounted on rubber,( seems there is a rail yard behind Comp that has played a part in some mis ground cams in the past) The cam is basically a blue printed cam, I'm not sure about a cam doctor sheet, You would have to ask that from comp. I do have a buddy in the machine shop business that does have a cam doctor, If you ever need a cam spec ted out.
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09-24-2007, 09:31 PM | #8 |
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Thanks for the info. Knowing the details and having them confirmed on a cam-doctor really means alot for the serious builder.
I have access to a cam-doctor as well. Definitely gonna "double-check" mine when it comes in.
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