ford SC?

[RacerX11]

i remember now m90 is the model # for an eaton?

Yes. The 90 denotes the 90 cubic inch displacement of the supercharger. The M45 and M62 are 45 and 62 cubic inches.

Marty

[TheProfessor]

what was the m 45 on

[RacerX11]

what was the m 45 on

The early Mercedez 2.3 Kompressor, the Mini Cooper S (I think...might be the M62), as well as some aftermarket Jackson Racing kits, like for Miatas.

Marty