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08-01-2012
I am wondering whats the best replacement supercharger coupler for the eaton m90. Would it make sense to go with a performance coupler say from ZZP, is it better to just buy an OEM replacement part, or does it not matter? Does replacing the coupler add any HP? And when replacing the coupler, what sorts of cleaning and lubricating should be done to the supercharger snout? Thanks!
08-01-2012
Rolling Performance Home
It does not add any horsepower - it just makes the noise go away.
08-01-2012
When you have the snout off just spray some brake clean in there and clean it out really good and wipe it down then put a new coupler from zzp in it and add 8ish oz of supercharger oil and enjoy.
08-02-2012
Yank the snout off after you drain as much oil as you can, clean it up with some brake cleaner and put the new coupler back in. Then clean the sealing surface really well and put a light coat of anaerobic sealant on it before torquing the bolts down to 17 ft-lbs (not 100% on that, it might be 13, or those could both be wrong. haha) I would go with ZZP's coupler so you don't have to ever worry again. After it's tight, fill her back up with SC oil and call it a day.
A lot of people say you don't have to use a sealant or torque them down to spec, but when I did this I had trouble with leaks the first time. My supercharger could be funky though, who knows.
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