Quote:
Originally Posted by JN-Motorsports
Just a point that we learned.
We have had problems running a high volume pumps at high rpm sheering the pin on the distributor gear. There is really no need to run a high volume unless your running coolers. We have switch to a HIGH PRESSURE, to insure we have 10lbs per 1000 rpm of engine speed. Havn't lost a engine to bearing failure in 10 years. It's pressure that maintains the oil clearance at RPM not volume. Just what works for us.
Jeff
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I worried about the dist pin, I changed the Duraspark oem gear to a steel gear to be compatable with the solid roller cam. MSD supplied an 1/8" roll pin,
the OEM was bigger.
We did have a high volume-standard pressure pump, it didn't shear the the dist gear, but I wonder about the point you made. There may have been a lack of pressure at high rpms. Something caused our bearing failure, I need to
prevent it from happening again.
