Unorthodox Underdrive Pulleys

[Tim Rogers]

Frank wrote:
> I've read the pros and cons about using these on my SER. I'm still
> confused...........As a daily driver anyone got history that has used
them,or
> opinions if this is a trouble free mod and worth doing for the gain in
> performance?

On an SR20DE, they are proven to make power and be reliable.
There is still some debate on their use on a QR25DE, especially on one that
has had its balance shafts removed (hello Torry Skurski).  If it is still
internally balanced like the SR, then the QR should be OK with them.  If
they are, then the warranty folks at Nissan are really giving Torry the bum
rush.

Tim Rogers
-93 NX T-top -needs wiring work
-91 NX - Racecar-to-be
-75 Silverado - Rusty Tow Beast