Making sbjd offset key for cam gear June 11, 2021 02:17AM
Anyone know how much to take off a keyway to get a 4 degree offset on the cam gear? Thanks
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Re: Making sbjd offset key for cam gear June 12, 2021 03:09PM
Diameter x pie / 360 x degree of offset

For example if your gear is 6”. 6 x 3.14 = 18.84 / 360 (360 degrees in rotation) = .052 per degree x 4 = .208 = amount to offset if gear is 6’
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Re: Making sbjd offset key for cam gear June 13, 2021 01:52AM
Wouldn't it actually be the size for cam nose?
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Re: Making sbjd offset key for cam gear June 12, 2021 08:36PM
Just asking a question for me to understand. The step keys we use are 1/4 x3/16. You wouldn’t get one step out of it at that rate. I’m thinking ( probably totally wrong). The math is correct on how far you need to move gear O.D.. Not at gear I.D. For some reason I’m thinking you’ll be like .012
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Re: Making sbjd offset key for cam gear June 13, 2021 02:25AM
Math is correct but you need to do inside diameter
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Re: Making sbjd offset key for cam gear June 13, 2021 02:34AM
Yes inside a little will move it a lot
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Re: Making sbjd offset key for cam gear June 14, 2021 12:17AM
What SBJD are we working with here?
If it’s a 404 from a 30 series or newer just press the cam gear off the cam hub, make the gears a slip fit then set your cam timing and weld it together.
4010\4020 then you’ll need an offset key.
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Re: Making sbjd offset key for cam gear June 14, 2021 02:38PM
My bad. As stated by others it would need to be calculated from cam nose. Thanks guys
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