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Unread 10-19-2015, 08:50 AM   #1
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Default LSD Help! (Limited Slip Differential)

I currently have a 1979 camaro and when I try to do a burn out only 1 tire spins. The same thing use to happen on my ford range I use to have. I don't know much about cars so I asked my dad and he told me some cars give more power to 1 wheel than the other and so that's why only 1 is spinning. I looked it up on google and found all this talk about "limited slip differential" and I think I understand how everything works now but what I want to know is how do I make both of my wheels spin at the same time and not have 1 wheel with more power than the other so I can do proper burn outs? Sorry for sounding like a newbie...

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Unread 10-19-2015, 11:33 AM   #2
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Limit-handling is NOT to be performed on the public highway or based on textual descriptions. Professional Coaching is needed.

First, let's distinguish a burn-out from a "donut". A burn-out means to spin the tyres at a standstill without rotating the car.

This is only possible if you can brake the front seperately from the rear to spin the rear while keeping the car from moving with the front brakes.

A donut (potentialy what you mean) includes rotating the car, because the spinning rear tyres keep it moving but are not ressistant to yaw.

What you at is applying good amount of steering (so think 180-270 degrees at the handwheel), loads of revs and than dip the clutch to spin the rear and modulate steering and wheel to control it. Obviously rear-wheel drive is needed.

A Limited-Slip Differential is useful (but not obligatory) because an open diff would provide all power to the inside tyre (because it traverses a tighter radius) so it spins, and the outside does not. An LSD has some preload but at the limit it locks and keeps power applied to both tyres.

I'd also hazard about the costs of doing this on the dry. You can write good a set of tyres and put a good deal of load on the drivetrain. Try at slippery conditions first.

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Unread 10-21-2015, 01:44 PM   #3
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No I mean a burn out not a donut...

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Unread 10-27-2015, 09:33 PM   #4
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You have an open differential so you will only ever do one wheel peels.

If you want to do proper burnouts you'll need a limited slip, or positraction as they're sometimes called for older cars, differential. This will be a few hundred bucks. They are a decent amount of work to install.
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Unread 10-28-2015, 04:39 PM   #5
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Time to swap in the good ole positrac rear end! It was all the hype back in the day!

Like mike stated, few hundred $ and a bit of work your self, or hundreds more and a week or so of down time if you drop it off at a shop...

But then youll be trying to spin 2 tires, so you may want to do some small upgrades to the motor.
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camaro, limited slip differential

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