balanced and coated
oo pretty
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Originally Posted by silvr94r2
You mean these? They look really nice!!
thanks for the comment, the housings are next
not sure, my engine build comes with coated rotors, oil pump and bearings. I did pay extra to get the turbo, dp and rotor housings coated. www.Turblown.net can get you pricing info.
Last edited by SPEED_NYC; Dec 22, 2006 at 08:54 AM.
Originally Posted by Jason
Watchout for some of those coatings. We have opened two engines that had the rotors coated and there were flakes of it everywhere.
Jason
Jason
Thanks for the heads up, I've researched a bit on coating, and found that this Polydyn coating was the best route.
Polydyn Performance Engine Coatings are applied so that a .0002" to .0007" overbuild remains on the surface, but there's a lot more to these coatings than meets the eye. PolyDyn fluoropolymers actually become a part of the coated materials surface; .005" t 0.50" actual penetration depending on the material. While some overbuild can be removed, it is virtually impossible to extract a polymer from the pores of the metal to which it is applied. Consequently, PolyDyn coatings will last almost indefinitely.
Originally Posted by Jason
Watchout for some of those coatings. We have opened two engines that had the rotors coated and there were flakes of it everywhere.
Jason
Jason
Originally Posted by the_glass_man
Do you know what coatings they were?
We lost a porsche engine directly due to piston dome coatings flaking off and tearing the cylinder walls apart.
