cam gear ratio?
Lead Driver
Joined: Apr 2008
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Pretty much summed up what i was thinking as well
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Senior User
Joined: Apr 2012
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It has to do with the tach calibration. The tach can
Be calibrated by the number of teeth on the gear used to read off of, like the cam gear or flywheel. If used on the flywheel, you would calibrate using the exact number of teeth on the flywheel, whereas with the cam gear, Since it's a 2:1 ratio I will use half the number of teeth in the calibration equation. The equation to use is written down at home I can't remember it now, instill need to read up on all that
Be calibrated by the number of teeth on the gear used to read off of, like the cam gear or flywheel. If used on the flywheel, you would calibrate using the exact number of teeth on the flywheel, whereas with the cam gear, Since it's a 2:1 ratio I will use half the number of teeth in the calibration equation. The equation to use is written down at home I can't remember it now, instill need to read up on all that
Postmaster
Joined: Dec 2011
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Yup, divide the number of pulses by 53 if you use the stock VRS(or replace it with something else in the same spot).
What tach are you using? When I was looking around, I couldn't find anything for a reasonable price and ended up making my own with a microcontroller(see topic).
What tach are you using? When I was looking around, I couldn't find anything for a reasonable price and ended up making my own with a microcontroller(see topic).
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Senior User
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its an isspro r13000 series tach, im planning on using the factory tach sensor on the gear cover. im assuming the cam gear has 53 teeth?
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