Danger of helical diff on RWD cars: Quaife, Wavetrac

2011 Nismo#91 · 05-05-2021, 07:41 AM

They both types send torque to both wheels. That video is most likely showing lift off oversteer then any specific differential issue, but it's hard to tell anything from it really. Those nose dive accidents are driver error of applying too much power too early in a rear drive car not the type of differential.

Helical, very linear engagement and predictable. No adjustment to engagement what you get from the mfg is it. Low noise compared to clutch type. Little to no maintenance.

Clutch, adjustable engagement to suit every event. You want a quick lock up you can set it, less aggressive you can set that too. It is noisy especially with low speed cornering. Regular maintenance needed, fluid changes, clutch changes. Not really an issue if you constantly taking it apart to adjust it.

https://www.kmpdrivetrain.com/differ...-differential/

Rusty · 05-05-2021, 08:10 AM

I have the OS Giken. It's been seamless. Can't tell it's in the diff. It's quite. But you have to use the OS Giken gear lube with it. Mine is set to 1.5 way and 75% lock up. The oversteer and understeer is chassis set up.

I had a Detroit Locker in one vehicle. THAT would cause oversteer and understeer with the gas pedal. Let off the gas mid turn and it would pull the front into the turn. Give it gas and it would push the front. And it was really noisy. It would bang and clang when it released and locked up.

05-05-2021, 07:41 AM	#1 (permalink)
2011 Nismo#91 A True Z Fanatic Join Date: Mar 2011 Location: NJ Posts: 2,412 Drives: slowly Rep Power: 40571	They both types send torque to both wheels. That video is most likely showing lift off oversteer then any specific differential issue, but it's hard to tell anything from it really. Those nose dive accidents are driver error of applying too much power too early in a rear drive car not the type of differential. Helical, very linear engagement and predictable. No adjustment to engagement what you get from the mfg is it. Low noise compared to clutch type. Little to no maintenance. Clutch, adjustable engagement to suit every event. You want a quick lock up you can set it, less aggressive you can set that too. It is noisy especially with low speed cornering. Regular maintenance needed, fluid changes, clutch changes. Not really an issue if you constantly taking it apart to adjust it. https://www.kmpdrivetrain.com/differ...-differential/ FL 4Motion, AlWakRa, JARblue and 2 others like this. __________________ GTR TT 493Whp/431lbft, Ecutek, Southbend 6puck,Quaife, RPM RollBar 4Point, R888R, JRZ RSPro F(10R/10C) R(10R/6C) 1000f500r inlbs+150inlbs Tender, SPL everywhere.Full Specs

05-05-2021, 08:10 AM	#2 (permalink)
Rusty A True Z Fanatic Join Date: Dec 2011 Location: Fayettenam,Pennsyltucky Age: 70 Posts: 35,578 Drives: 2011 Nismo GM 6M Rep Power: 2684440	I have the OS Giken. It's been seamless. Can't tell it's in the diff. It's quite. But you have to use the OS Giken gear lube with it. Mine is set to 1.5 way and 75% lock up. The oversteer and understeer is chassis set up. I had a Detroit Locker in one vehicle. THAT would cause oversteer and understeer with the gas pedal. Let off the gas mid turn and it would pull the front into the turn. Give it gas and it would push the front. And it was really noisy. It would bang and clang when it released and locked up. FL 4Motion, AlWakRa, JARblue and 4 others like this. __________________ 浪人 - 殺し屋 "The Difficult Anytime, The Impossible By Appointment Only" http://www.the370z.com/members-370z-...o-journal.html

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