?'s about posi traction
05-11-2007, 09:11 AM
#1
?'s about posi traction First off I'm pretty new here. Second, all V8's 98-02 had posi traction correct. I have a 2000 Z28 and I was watching the driver side rear tire when i was spinning the tires to see if it was spinning and it wasn't. Yet there's tire marks on the passenger side. I just did it enough to see if both tires were spinning and i wasn't doing a burnout really. Obviously, my posi traction isn't working correct? What can I do to fix it and how much? My dad knows quite a bit about cars. You think we could do it ourselves? Thx in advance
05-11-2007, 10:39 AM
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It's not "posi", it's a limited slip. Basically this means that if you're going around a turn the limited slip will let the wheels turn at a little bit different speeds so that the tires don't chirp and jump. But if you let it rip, the limited slip locks up and both tires go.
If it were true posi, every time you went around a corner your rear end would jump around and the tires would chirp.
PS Don't flame me...this is a "layman's terms" version.
If it were true posi, every time you went around a corner your rear end would jump around and the tires would chirp.
PS Don't flame me...this is a "layman's terms" version.
05-11-2007, 11:05 AM
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Originally Posted by NeoTINS
It's not "posi", it's a limited slip. Basically this means that if you're going around a turn the limited slip will let the wheels turn at a little bit different speeds so that the tires don't chirp and jump. But if you let it rip, the limited slip locks up and both tires go.
If it were true posi, every time you went around a corner your rear end would jump around and the tires would chirp.
PS Don't flame me...this is a "layman's terms" version.
If it were true posi, every time you went around a corner your rear end would jump around and the tires would chirp.
PS Don't flame me...this is a "layman's terms" version.
05-11-2007, 11:23 AM
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ive got a manual with 4.10s, i spin both my tires all the time, no problems at all.
Id give it more gas then it sounds like you are. make sure you only hold the brakes enough to keep the car from moving. Smoke the tires some and see if the one is still only turning. If you really smoking up the one tire and the other one is just sitting there doing nothing then theres something broken in your differential
Id give it more gas then it sounds like you are. make sure you only hold the brakes enough to keep the car from moving. Smoke the tires some and see if the one is still only turning. If you really smoking up the one tire and the other one is just sitting there doing nothing then theres something broken in your differential
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05-11-2007, 11:32 AM
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Originally Posted by Ericbigmac83
WRONNNNGGGG, so very wrong
If I'm wrong, tell me (and everyone else) why. As-is, your post is completely uninformative, and utterly useless.
05-11-2007, 11:41 AM
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Originally Posted by NeoTINS
It's not "posi", it's a limited slip. Basically this means that if you're going around a turn the limited slip will let the wheels turn at a little bit different speeds so that the tires don't chirp and jump. But if you let it rip, the limited slip locks up and both tires go.
If it were true posi, every time you went around a corner your rear end would jump around and the tires would chirp.
PS Don't flame me...this is a "layman's terms" version.
If it were true posi, every time you went around a corner your rear end would jump around and the tires would chirp.
PS Don't flame me...this is a "layman's terms" version.
Your definition of limited slip is correct enough, under straight line both axles turn at the same speed and under cornering it allows them to turn at different speeds. the limited slip give more torque to the wheel that isnt slipping
A limited slip = a posi, They are the same thing, Posi is just GM's name for it
You are confusing a posi with a spool, A spool is not actually a differential since it locks the axles and gives them equal power at all times. This obviously doesnt work well for cornering since it does not allow the outside wheel to turn faster, thus causing the chirping around corners.
A locker in layman's terms is like a spool except it does allow the axles to dissengage to allow the outside wheel to turn faster around corners
Hope that clears it up
05-12-2007, 05:51 AM
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Originally Posted by Ericbigmac83
Alright, let me go through this.
Your definition of limited slip is correct enough, under straight line both axles turn at the same speed and under cornering it allows them to turn at different speeds. the limited slip give more torque to the wheel that isnt slipping
A limited slip = a posi, They are the same thing, Posi is just GM's name for it
You are confusing a posi with a spool, A spool is not actually a differential since it locks the axles and gives them equal power at all times. This obviously doesnt work well for cornering since it does not allow the outside wheel to turn faster, thus causing the chirping around corners.
A locker in layman's terms is like a spool except it does allow the axles to dissengage to allow the outside wheel to turn faster around corners
Hope that clears it up
Your definition of limited slip is correct enough, under straight line both axles turn at the same speed and under cornering it allows them to turn at different speeds. the limited slip give more torque to the wheel that isnt slipping
A limited slip = a posi, They are the same thing, Posi is just GM's name for it
You are confusing a posi with a spool, A spool is not actually a differential since it locks the axles and gives them equal power at all times. This obviously doesnt work well for cornering since it does not allow the outside wheel to turn faster, thus causing the chirping around corners.
A locker in layman's terms is like a spool except it does allow the axles to dissengage to allow the outside wheel to turn faster around corners
Hope that clears it up
Thanks for the (very thorough) explanation! I appreciate it!
Cue the music..."The More You Know!" =)
05-12-2007, 06:07 AM
#12
Well, the thing you have to realize is that, without the posi all the power would go to the passenger's side. The posi forces some of the power to the driver's side. But it is not 100% efficient, and the passenger's side still gets some small percentage more than the driver's side. That is why drag racers go with a spool. It locks the axles, so they both turn as one.
