M90 de-laminating rotor coating?

[immortality]

Hi Guys,

What sort of efficiency losses would you expect to see when the coating on the rotors starts to come off?

Other than the MACE rotors are there any other options for getting the rotors re-coated?

Thanks

[VX L67 Getrag]

Yeah I've thought of this a few times but never posted the question or bothered googling, but yeah got a couple of set's in my workshop that have it half gone & when I first saw it I thought crap that must have done some damage going through the motor as it's like a chrome sheet!

[immortality]

Yeah, A mate just sent me a photo this arvo when he pulled it off.

Got me wondering.

[delcowizzid]

yeah i seen westerlies pics today didnt look good that small pulley just killed the coating.any powder coater that does ceramic coating could redo the surface but getting the thickness correct would be the issue

[immortality]

It only ran a 10psi pulley for about 30km's total. No way the pulley was responsible for that.

Engine has a bearing knock, the guy that rebuilt it seems to have used a LOT of orange sealant, probably clogged up the pick up.

[delcowizzid]

oh that pulley looked tiny thought it must of been higher

[ejukated]

Can happen if the supercharger isn't torqued down properly as the casing warps easily. There will be some run in wear as long as the coating isn't way to thick it should be ok.

[immortality]

oh that pulley looked tiny thought it must of been higher

I think that one is 3.2" (or 12 psi?), was bought to suit a small cam upgrade. It had a 3.4"/10psi which is mine.

[delcowizzid]

Looks like he needs rods and pistons now was stock ecotec under there lol

[immortality]

Yeah, it's turned into a cluster fuck.

Maybe try to find a L67 short.