RX7Club.com - Mazda RX7 Forum - helical or viscus?

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The Last Mahadocon

06-14-07 02:35 PM

helical or viscus?

ive looked for a while and i just cant find the info. i was wondering if anyone knows weither or not the lsd in a 1988 n/a gxl is a liscus or helical lsd. anyone know?

RotaryEvolution

06-14-07 02:41 PM

S5 is when they switched to the Torsen(helical viscous...) so you have a clutch type LSD unless they happened to install the Torsens late that year which i have heard nothing about.

Shainiac

06-14-07 04:35 PM

I thought the torsen and viscous were different?

HotRodMex

06-14-07 04:51 PM

Torsen is a brand name of helical differential. It is not a viscous LSD.

S4s have clutch type LSD.

The Last Mahadocon

06-14-07 05:53 PM

thanks dude, learn sumtin new everyday.

NZConvertible

06-15-07 02:50 AM

Quote:

Originally Posted by Karack (Post 7042815)

S5 is when they switched to the Torsen(helical viscous...) ...

Helical and viscous differentials are completely different. S5's had viscous diffs and FD's had Torsen helical diffs. Only the Infini IV FC's got a Torsen diff, the same unit that was subsequently used in the FD's.

Brody8877

06-15-07 03:01 AM

http://www.fc3spro.com/TECH/MODS/DT/lsd.htm

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