SC Rotors difference, 1993 / 1994 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 04-10-2008, 06:28 PM   #1
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Default SC Rotors difference, 1993 / 1994

91-92 SC have no coating from the factory ( on the rotors ) but 94 and 95 do.

the rotors are interchangeable. Housings are not.

So would a 93 housing, with 95 coated rotors perform better ( 1-2 lbs+ boost ) than a stock 1993 SC?

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Old 04-10-2008, 06:32 PM   #2
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The rotors will not fit. It has been discussed here before, a member tried to do it, but the rotors barely fit, and scraped when turned. I think this is why the fins on the Gen3 M62 (94/95) only go down halfway.

Anyone correct me if I am wrong.
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Old 04-10-2008, 06:44 PM   #3
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i would love to get to the bottom of this. I have seen a 93 SC with coated rotors..
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Old 04-10-2008, 07:00 PM   #4
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Gen3 rotors are the same length and diameter, but after the coating, they will not fit in a Gen2 case properly. The coating will be wiped off the edge of each rotor, exposing an edge on the epoxy coating, and begin eroding and flaking away over a very short period of time.

They are not compatible, even if they look like they might be close enough. In addition, the inlet of the Gen2 is enough of a restriction that increasing the efficiency of the rotors would cause a HUGE spike in SC inlet temperatures, effectively cancelling out any potential gain in performance.
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Old 04-10-2008, 11:37 PM   #5
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thanks for the clarification.

Can a SC bepainted with your " special sauce" if completely assembled already? ( obviouslt taped up very well ) And do you think it can be put in the oven fully oiled/assembled without any problems?

Im not happy with the finish of the reman SC i have seen, and would like to do something about it before i install in on Sunday..
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Old 04-10-2008, 11:40 PM   #6
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No. It'll begin to flake away at every 'splice'. Each part needs to be dissassembled, de-greased, and painted seperately. After curing/drying, un-mask them all and lightly sand the corners of each mating surface to prevent flaking and peel.
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Old 04-11-2008, 03:37 AM   #7
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its going on the way it is, it would be MUCH easier to just paint the cover for the SC... Any suggestions or tips ? Should this be made into a new topic under a different forum?
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Old 04-11-2008, 09:20 AM   #8
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That sounds like an appearance mod.



A little more info on the wrinkle paint. Several people have had issues getting a good quality finish out of it. I suggest if you would like to go that route, that you get some material to practice on.

Removing the SC later when you have the technique down, cleaning, painting, curing, and reassembling would be an easy one-day job from start to finish. Especially after you've replaced a SC before.
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Old 04-11-2008, 11:53 AM   #9
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very true... glad your a member of this forum..

Wish you lived a little closer... could defintely have some side work for ya !
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Old 04-11-2008, 11:56 AM   #10
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Quote:
Originally Posted by statusplease
Wish you lived a little closer... could defintely have some side work for ya !

X2 On that one.
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