Lift off oversteer

cv129 · 05-27-2019, 11:06 AM

Just wondering, purely in theory, would a 1.5 or 2 way LSD help with lift-off oversteer?

Rusty · 05-27-2019, 11:49 AM

Being a little off line, in the marbles, a little too hot for the corner, light flywheel, high compression motor, sudden lift of the gas pedal will do it.

Hidalgo · 05-28-2019, 12:49 PM

Quote:

Originally Posted by Rusty

Being a little off line, in the marbles, a little too hot for the corner, light flywheel, high compression motor, sudden lift of the gas pedal will do it.

Warm ... Warmer ..... Disco.

gomer_110 · 05-27-2019, 05:45 PM

Quote:

Originally Posted by cv129

Just wondering, purely in theory, would a 1.5 or 2 way LSD help with lift-off oversteer?

My experience from autox is a 1.5 way would help but not in directly reducing lift-off oversteer. Once I got my 1.5 way I found myself being on the gas much sooner which in turn meant transferring weight to the rear which means more grip.

cv129 · 05-27-2019, 05:56 PM

Quote:

Originally Posted by gomer_110

My experience from autox is a 1.5 way would help but not in directly reducing lift-off oversteer. Once I got my 1.5 way I found myself being on the gas much sooner which in turn meant transferring weight to the rear which means more grip.

Thx for sharing

2011 Nismo#91 · 05-28-2019, 05:32 AM

Quote:

Originally Posted by cv129

Just wondering, purely in theory, would a 1.5 or 2 way LSD help with lift-off oversteer?

I have a Quaife Diff 1.5way. The real solution would be enter the corner slower, that was at least 10mph faster then when I did my fastest lap. Or add a little power to put some weight on the rear and control the exiting of the track better then what I did. But if you want change the car rather then the driver here are a few things that could help.
Reduce the rear tire pressure
Soften rear springs or anti-roll bar
Softer rear tires
Increase rear down-force aero
Increase rebound dampening

osbornsm · 05-28-2019, 08:51 AM

My feeble attempt to understand 1.5 / 2-way diffs...

The increased resistance from the extra traction you now have, would offset the vehicle MORE in lift-off conditions. This is assuming the theory that the 2-way would slow both tires with the trans instead of just one?

Whacha got?

cv129 · 05-28-2019, 01:03 PM

Quote:

Originally Posted by osbornsm

My feeble attempt to understand 1.5 / 2-way diffs...

The increased resistance from the extra traction you now have, would offset the vehicle MORE in lift-off conditions. This is assuming the theory that the 2-way would slow both tires with the trans instead of just one?

Whacha got?

Interesting, I had in my mind an aggressive deceleration lock yields understeer, glad I am asking, I just don’t have experience in this.

And to clarify, of course the priority is to develop driving skills, this is just a theoretical question. I am in no way suggesting it’s the car’s problem.

Spooler · 05-28-2019, 03:00 PM

Quote:

Originally Posted by 2011 Nismo#91

I have a Quaife Diff 1.5way. The real solution would be enter the corner slower, that was at least 10mph faster then when I did my fastest lap. Or add a little power to put some weight on the rear and control the exiting of the track better then what I did. But if you want change the car rather then the driver here are a few things that could help.
Reduce the rear tire pressure
Soften rear springs or anti-roll bar
Softer rear tires
Increase rear down-force aero
Increase rebound dampening

A Quaife is a torsional diff. You only have a 1 way diff the way I understand it. To get a 1.5 way or a 2.0 way you would need a clutch type diff.

2011 Nismo#91 · 05-29-2019, 05:08 AM

Quote:

Originally Posted by Spooler

A Quaife is a torsional diff. You only have a 1 way diff the way I understand it. To get a 1.5 way or a 2.0 way you would need a clutch type diff.

They are all 1.5ways

05-27-2019, 11:06 AM	#1 (permalink)
cv129 A True Z Fanatic Join Date: Jul 2011 Location: Dallas, TX Posts: 3,272 Drives: 09 Nismo, 16 Nismo Rep Power: 163996	Just wondering, purely in theory, would a 1.5 or 2 way LSD help with lift-off oversteer? __________________ Setrab \| RE-71 \| SPL \| JRZ \| Nismo \| ARK \| Whiteline \| RacingBrake \| CJM Oil Pan \| Ti shield

05-27-2019, 11:49 AM	#2 (permalink)
Rusty A True Z Fanatic Join Date: Dec 2011 Location: Fayettenam,Pennsyltucky Age: 70 Posts: 35,575 Drives: 2011 Nismo GM 6M Rep Power: 2684440	Being a little off line, in the marbles, a little too hot for the corner, light flywheel, high compression motor, sudden lift of the gas pedal will do it. cv129 and Hidalgo like this. __________________ 浪人 - 殺し屋 "The Difficult Anytime, The Impossible By Appointment Only" http://www.the370z.com/members-370z-...o-journal.html

05-28-2019, 08:51 AM	#7 (permalink)
osbornsm A True Z Fanatic Join Date: Jun 2011 Location: WHAT Posts: 2,551 Drives: 2018 Camaro SS 1LE Rep Power: 425	My feeble attempt to understand 1.5 / 2-way diffs... The increased resistance from the extra traction you now have, would offset the vehicle MORE in lift-off conditions. This is assuming the theory that the 2-way would slow both tires with the trans instead of just one? Whacha got? __________________ 2018 Camaro SS 1LE (455hp) - 2011 Nissan 370z (333hp) - 2004 VW R32 (240hp) - 2000 Civic Si (160hp)

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