68ragtop
Well-Known Member
951 DI top end technical questions.
I have noticed many of the used 951 DI heads can have a substantial amount of pitting on the surface of the heads.
How much can be cleaned off of these heads & is it ok to adjust them with a thicker 4 or 5 hole gasket? I realized this will move the ports upward a bit & reduce the volume of compressible air. Is that a problem? or completely insignificant?
Any issues running 1.5mm oversized pistons? Other than rave clearancing? Is WSM my only option, I see BRP only has .5mm oversized available & Im already past that. its at 88.52mm with some scraping that needs to be cleaned up.
thanks, 68RT
I have noticed many of the used 951 DI heads can have a substantial amount of pitting on the surface of the heads.
How much can be cleaned off of these heads & is it ok to adjust them with a thicker 4 or 5 hole gasket? I realized this will move the ports upward a bit & reduce the volume of compressible air. Is that a problem? or completely insignificant?
Any issues running 1.5mm oversized pistons? Other than rave clearancing? Is WSM my only option, I see BRP only has .5mm oversized available & Im already past that. its at 88.52mm with some scraping that needs to be cleaned up.
thanks, 68RT
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