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Old 02-25-2024, 04:37 PM   #1
JMlegacy
Scooby Specialist
 
Member#: 341649
Join Date: Dec 2012
Chapter/Region: International
Location: Sun City
Default race motor clearance theory

Good morning guys.
Been a while since i've posted here.

I have an engine setting up and I'm considering the clearance/oil/cooling combination to use. I've been plagued by spun bearings (550hp motor) every now and then.

I've asked a few people how they designed their motors and some may say use a larger clearance and thicker oil. Others rather a thinner oil (0W-X) and use adequate cooling.

I've noticed that the latest turbo Honda Type R uses 0w-20 oil in their motor. IT has a coolant based oil cooler. I can only imagine the clearances and tolerances in that motor.

Anyways, thanks for reading I'd love to hear your thoughts.
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