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M62 and M90 Supercharger specs

**all revs listed are SC revs**

M62 Max boost:
10psi/460cfm @ 14000 rpms

M62 hp gain:
7hp @ 4000 rpms, 36hp @ 14000 rpms

M62 Operating temperature:
135 @ 4000 rpms, 180 @ 14000 rpms
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M90 Max Boost:
10psi/520cfm @ 12000 rpms

M90 hp gain:
10hp @ 4000 rpms, 42hp @ 12000 rpms

M90 Operating temperature:
160 @ 4000 rpms, 190 @ 12000 rpms
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From these specs, it's easy to see why
the M90 pulley is larger. It reaches
max boost of 10psi at 12000 rpms, rather
than 14000 rpms like the M62. Hence the
larger pulley resulting in lower drive
rpm's.


-webmaster-