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For Anyone That Has Time On Their Hands, I Have Two Questions...

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Old Oct 14, 2004 | 11:11 AM
  #1  
BigPlansNoMoney's Avatar
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From: Richmond, VA, USA
Default For Anyone That Has Time On Their Hands, I Have Two Questions...

Can someone explain these two things to me:

What is positive traction? I know that's why only wheel spins when doing a burnout on a car equiped with it, but I know nothing else about it. What purpose does it serve? Where is it located (i.e.- part of the tranny, differenctial, other)? Can it be taken off a car that has it? Can it be put on a car that doesn't? Is desirable for drag racing or not?

Also what does LSD do? I know it stands for Limited Slip Differential, I think lol. Same set of above questions: What purpose does it serve? Where is it located (i.e.- part of the tranny, differenctial, other)? Can it be taken off a car that has it? Can it be put on a car that doesn't? Is desirable for drag racing or not?

Also, any other info you can think of that isn't covered under the above questions is more than needed and wanted. Thanks much!
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Old Oct 14, 2004 | 11:31 AM
  #2  
PrettyLude's Avatar
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From: Lafayette, LA, USA
Default

imma tell you man u better search first or put ur flame suit on
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Old Oct 14, 2004 | 11:36 AM
  #3  
BigPlansNoMoney's Avatar
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From: Richmond, VA, USA
Default Re: (PrettyLude)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by PrettyLude &raquo;</TD></TR><TR><TD CLASS="quote">imma tell you man u better search first or put ur flame suit on</TD></TR></TABLE>

I did for a very,very,very,very,very,very,very,very,very,very, very,very,very,very,very,very long time!


Modified by Justin_Bradley at 10:19 AM 10/15/2004
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Old Oct 14, 2004 | 01:21 PM
  #4  
blackmagicCRX's Avatar
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Joined: Apr 2004
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From: roanoke rapids, nc, 27870
Default Re: (Justin_Bradley)

positve traction means both wheels pull

LSD Limited Slip Differential is what makes both wheels pull
there are lots of different types of LSD's
They all work in very different ways

hope that helps some
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Old Oct 14, 2004 | 04:36 PM
  #5  
drdisco69's Avatar
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Joined: Jan 2004
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From: Charlotte, NC
Default Re: (Justin_Bradley)

http://auto.howstuffworks.com/differential8.htm

Search harder.
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Old Oct 14, 2004 | 07:18 PM
  #6  
Wes V's Avatar
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From: Winnetka, Calif, USA
Default Re: (drdisco69)

"Positraction" and "LSD" are pretty much different names for the same thing and it's a type of differential.

It's easiest to talk about a domestic car with rear wheel drive.

In a car that doesn't have an LSD, the differential is called an "open differential". The reason for a differential is that when going aroung a curve, the outside tire has to turn faster than the tire on the inside. (The outside tire has to cover a longer distance)

The problem is that if one wheel doesn't have traction, all the force driving the wheels just goes to spinning that wheel.

An LSD (and there are several types) differential causes some of the driving force to go to both wheels. It still allows one wheel to turn faster than the other if required (unless it's a spool, and let's not go there).

If it's a front wheel drive car, the differential is in the front within the transmission housing.

If it's a four wheel drive car, then there can be a total of three differentials. One for each "axle" and one that controls the force that goes to the front or rear.

An LSD is good for both drag racing and road racing. The type of LSD makes a big difference in road racing and you have to be careful which type you select.

I hope that answers it. (and no flames were used)

Wes

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