Inside rear wheel lifting- any suggestions?
#1
Scooby Regular
Thread Starter
iTrader: (10)
Join Date: Apr 2009
Posts: 807
Likes: 0
Received 0 Likes
on
0 Posts
Inside rear wheel lifting- any suggestions?
In our local event I have seen pics of my car cornering and lifting the inside rear wheel which isn't ideal.
Car is caged and poly bushes, with bc's set 3 clicks softer at the rear but overall fairly stiff, and a 22 mm rear arb.
I use 2.5 degrees of camber on the front, and 2 on the rear.
Would appreciate any input from people who have has this- it is event driving and I am using super soft kumhos so catr is being driven hard, but because I have standard diffs the rear spins up.
Car is caged and poly bushes, with bc's set 3 clicks softer at the rear but overall fairly stiff, and a 22 mm rear arb.
I use 2.5 degrees of camber on the front, and 2 on the rear.
Would appreciate any input from people who have has this- it is event driving and I am using super soft kumhos so catr is being driven hard, but because I have standard diffs the rear spins up.
#4
Scooby Regular
Without spending a lot, all I can think of is increase preload in your back shocks a bit. As the back outer goes onto the bump, the car pivots on it and lifts . Another option is to raise ride height at front.
You car rotates under cornering load through an axis defined by your front and rear roll cantres. Lowering the car drops the roll centres. AS Standard a Subaru tends to have an axis that slopes down at the back, lifting a front wheel first and understeering as a result. If you lower it, you can alter the angle as you have appeared to do.
The amount the car wants to roll is determined by the distance from the centre of gravity to the roll centre, giving a moment arm or torque, that twists the car onto the springs. The Anti-roll bar resists this and changes the spring rates increasing the outer and softening the inner spring.
Raising all four corners will reduce the roll moment and total roll, giving you more grip.
Try 5mm at a time and you should feel the car pivot differently. Find what works and make a note!
Best of luck.
You car rotates under cornering load through an axis defined by your front and rear roll cantres. Lowering the car drops the roll centres. AS Standard a Subaru tends to have an axis that slopes down at the back, lifting a front wheel first and understeering as a result. If you lower it, you can alter the angle as you have appeared to do.
The amount the car wants to roll is determined by the distance from the centre of gravity to the roll centre, giving a moment arm or torque, that twists the car onto the springs. The Anti-roll bar resists this and changes the spring rates increasing the outer and softening the inner spring.
Raising all four corners will reduce the roll moment and total roll, giving you more grip.
Try 5mm at a time and you should feel the car pivot differently. Find what works and make a note!
Best of luck.
Thread
Thread Starter
Forum
Replies
Last Post
Scott@ScoobySpares
Full Cars Breaking For Spares
61
11 January 2021 03:08 PM
Mattybr5@MB Developments
Full Cars Breaking For Spares
33
29 August 2017 07:18 PM
Scott@ScoobySpares
Full Cars Breaking For Spares
7
14 December 2015 08:16 AM
Mattybr5@MB Developments
Full Cars Breaking For Spares
20
22 October 2015 06:12 AM