Rotor Coating loss
Senior Member
True Car Nut
Joined: Jan 2005
Posts: 3,882
Likes: 2
From: Montevideo, MN MWBF '05, '06, '07 WCBF '06 '07 survivor

Originally Posted by 2000SilverBullet
Hey, I noticed that same puff coming from my exhaust in a couple of those Woodburn vids.
I even saw Shadd puff on the shift.
I even saw Shadd puff on the shift.
After one race the engine compartment was wet with sc oil.
Now I know why my under hood insulator is oil soaked directly over the snout.
I suppose these SC are only designed to hold 7 psi of pressure without blowing out the seals. :?
Not all of them.
But then again, mine doesn't have a breather. I've been running somewhere between 12 and 15 psi on mine, but without a breather like yours, I won't have the problem.
I've seen other Pulley'd M90'* not leak.
But then again, mine doesn't have a breather. I've been running somewhere between 12 and 15 psi on mine, but without a breather like yours, I won't have the problem.
I've seen other Pulley'd M90'* not leak.
Ok..so Paul got a model clearly intended to peeve off a Canadian.
The snout leakage has me thinking as well. I've run a 3.2 for some time now and have no oil at all at the snout. Must be something wrong...as I know I'm clearly around 13psi.
Enjoy the Gen V Paul...
The snout leakage has me thinking as well. I've run a 3.2 for some time now and have no oil at all at the snout. Must be something wrong...as I know I'm clearly around 13psi.
Enjoy the Gen V Paul...
Had a very good discussion with Snow Performance technician about my Boost Cooler injection system.
He actually recommended spraying pre rotor. He also said it'* fine to inject post rotor. Says that it does not remove the rotor coating but actually helps by cooling the rotors and creating a better seal. Says that coating loss is caused by the rotors overheating and flexing due to running much faster than stock using smaller pulley'*. It makes sense from the markings I observed on the coatingless rotor.
Also recommends not running with race fuel like I was doing and that it will give me more power.
I am going to make further modifications as soon as I get running again......but I won't tell. It'* a secret. :P
He actually recommended spraying pre rotor. He also said it'* fine to inject post rotor. Says that it does not remove the rotor coating but actually helps by cooling the rotors and creating a better seal. Says that coating loss is caused by the rotors overheating and flexing due to running much faster than stock using smaller pulley'*. It makes sense from the markings I observed on the coatingless rotor.
Also recommends not running with race fuel like I was doing and that it will give me more power.
I am going to make further modifications as soon as I get running again......but I won't tell. It'* a secret. :P
.....and you've been injecting with no coating loss.
A different design of SC might make the difference. Your rotors are shorter and you push much less air with the M62 vs M90.
This guy has a lot of experience with injection systems and seemed to know what he was talking about. :?
A different design of SC might make the difference. Your rotors are shorter and you push much less air with the M62 vs M90.
This guy has a lot of experience with injection systems and seemed to know what he was talking about. :?
Originally Posted by 2000SilverBullet
.....and you've been injecting with no coating loss.
A different design of SC might make the difference. Your rotors are shorter and you push much less air with the M62 vs M90.
This guy has a lot of experience with injection systems and seemed to know what he was talking about. :?
A different design of SC might make the difference. Your rotors are shorter and you push much less air with the M62 vs M90.
This guy has a lot of experience with injection systems and seemed to know what he was talking about. :?
And I'm pushing more air than an M90 with a 3.2" pulley. About equal to you wtih the 3.0". Think about it.
We've got alot of pulley'd M90'* here with no coating loss.
We've got alot of pulley'd M90'* here with no coating loss.





