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Old 10-30-2013, 09:39 AM   #1
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Default diffing out??

Help me understand this I've seen the term thrown around and think my car may be doing it. Please explain what your car does when it diffs out and possible causes and corrections.
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Old 10-30-2013, 10:48 AM   #2
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I regard it as the inside rear wheel losing too much traction and allowing the diff the spin away the power that the tyres can't put down.

It usually shows up when coming out of tight corners when you go for the power, and appears as a lack of forward traction.
The more power, or the tighter the corner, the worse it is.
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Old 10-30-2013, 10:56 AM   #3
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also called diff unloading.
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Old 10-30-2013, 11:02 AM   #4
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Can that cause a sudden spin?
Sometimes when I'm hitting the power its like the car gets all the power at once and snaps around.
What's the gen solution for diff unloading? Less roll? Heavier sway bar? Heavier/lighter diff oil?
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Old 10-30-2013, 11:06 AM   #5
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lose that lead finger. it goes a long way.
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Old 10-30-2013, 11:16 AM   #6
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Quote:
Originally Posted by redbones View Post
lose that lead finger. it goes a long way.
Lol yeah I know that. But this seems to happen randomly same turns same track position approximately same throttle. And its at pretty low speed I'm really not hammering the throttle just rolling into it. Almost like the instant I get on the throttle from neutral.
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Old 10-30-2013, 11:37 AM   #7
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Too much roll at the rear I think. How to best resolve that depends heavily on track conditions.
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Old 10-30-2013, 12:00 PM   #8
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how I would attack this problem:

before you start throwing swaybars and changes at it. go back to the basics...
is any suspension binding, are all the shocks in good shape, is the droop good, is the camber good, nothing broken. has the tweak been checked?.... then start going after it. you need to have a good solid base foundation (setup). a lot of times when I have helped people make their cars better its those simple things make the world of difference. its amazing how good a car rides when all the camber is -1, compared to +2, -3, 0, -5. but I see them changing shock springs, and ride height, when all those changes wont help at all with mad wack camber.
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