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99 Miata Cam Gear timing bumps

 
Old 05-15-2014, 02:58 PM
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Default 99 Miata Cam Gear timing bumps

I am trying to figure out what the second set of timing bumps do on the 99 Miata intake cam gear.

Are the seconds ones even necessary? I recall someone saying just one bump enough and the second set of bumps were not necessary. Just trying to figure how they work.

Thanks
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Old 05-15-2014, 03:11 PM
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probably required for the stock ECU as it expects those two bumps to be there. why? well, 2nd set of bumps probably indicates a specific cam position. not sure what the ECU does with that. If you have the source code though...
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