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Thread: Posi vs standard, handling?
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07-01-2013 #1
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Posi vs standard, handling?
I was wondering if a car would handle better with the standard rear end vs a posi, I noticed they use to use them at NASCAR.. I'm thinking less friction especially during turns, no slip, lighter... I know a common misconseption is a standard differental only turns one wheel but that's not true, they tend to overload the one wheel that brakes loose during hard launches...
Any thoughts?
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07-01-2013 #2
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Somewhere you got some bad info. Every car & truck in the upper NASCAR series run some version of a Locker. For ovals, most run a CTR version, and only unlock the left rear wheel, when turning left. For road courses, they run a conventional unit that unlocks when turning left & right.
Detroit Lockers (and clones) do not increase friction in the drivetrain. They are either locked like a spool ... or unlocked like an open diff.
07-01-2013 #3
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Who in NASCAR uses an open rear end?
David Pozzi http://www.pozziracing.com67 Camaro RS that will be faster than anything Mary owns.
07-01-2013 #4
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I ment back in the old days.. I corrected the wording in my first post, sorry.
07-01-2013 #5
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The short answer is a car will not perform better with an open diff.
07-01-2013 #6
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Thank you Ron...
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