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      06-11-2012, 10:00 PM   #1
InterJon
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Weak car or PSS that good?

I just purchased another e92. This one is ZCP. I've been playing around trying to break rear end loose. The back end just won't break without serious effort.

My question, does the ZCP and new PSS increase the grip that much over my non-ZCP with old contis? Either the grip is unreal or my engine is weak. I've got to think it is the former over the later.

Thanks and sorry for dumb question. Just curious.
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      06-11-2012, 10:02 PM   #2
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Absolutely..much better tires..wider wheels
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      06-11-2012, 10:03 PM   #3
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Lol if the rear won't break loose without serious effort you may have a lemon on your hands. Straight line only I assume? It would be easy to get loose in a corner even on slicks. The PSS are an improvement over PS2's for sure but still aren't the grippiest street tire like an AD08, RE11, or RS3.
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      06-11-2012, 10:12 PM   #4
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I will ask some obvious questions - MDM on or traction off all the way right? If you have full traction on, you will not be able to break the rear loose.
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      06-11-2012, 10:13 PM   #5
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Quote:
Originally Posted by Singletrack View Post
I will ask some obvious questions - MDM on or traction off all the way right? If you have full traction on, you will not be able to break the rear loose.
That's not true. It will just break loose and immediately cut power and regain traction.
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      06-11-2012, 10:18 PM   #6
tibra1
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Ok I am missing something? OP went from a clearly inferior tire (Contis) to a clearly superior tire (PSS) AND wider wheels..

For his driving style whatever that maybe he has noticed better grip and it makes perfect sense.

What is relevant about how you guys choose to break traction

Quote:
Originally Posted by InterJon View Post
The back end just won't break without serious effort.
My question, does the ZCP and new PSS increase the grip that much over my non-ZCP with old contis?
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      06-11-2012, 10:59 PM   #7
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Quote:
Originally Posted by Porschefile View Post
That's not true. It will just break loose and immediately cut power and regain traction.
He said he was trying to "break the rear end loose". Trying to do so with full traction control on is pointless; since it is designed to prevent it.

MDM will actually allow the rear end to get loose as opposed to immediately intervening to prevent any amount of drift angle.
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      06-11-2012, 11:01 PM   #8
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Quote:
Originally Posted by tibra1 View Post
Ok I am missing something? OP went from a clearly inferior tire (Contis) to a clearly superior tire (PSS) AND wider wheels..

For his driving style whatever that maybe he has noticed better grip and it makes perfect sense.

What is relevant about how you guys choose to break traction
I guess you are? With MDM on, you should still be able to break the rear end loose if you are flooring it and taking a sharp angle to kick the rear end out.
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      06-12-2012, 09:58 AM   #9
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Quote:
Originally Posted by SehrSchnell View Post
I have no problems having the rear-end break loose, and that's with the AD08's.
so what your saying is he needs a supercharger?
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      06-12-2012, 11:36 AM   #10
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Quote:
Originally Posted by tibra1 View Post
Ok I am missing something? OP went from a clearly inferior tire (Contis) to a clearly superior tire (PSS) AND wider wheels..

For his driving style whatever that maybe he has noticed better grip and it makes perfect sense.

What is relevant about how you guys choose to break traction
Wider wheels aren't going to make a difference when the tires are the same width.

OP, PSS are better than than Contis but if you can't get wheel spin on a 265 rear *with traction control off* then you are doing something wrong. Hell even a 295 section R-comp is going to spin in 1st and 2nd, especially if you are trying to do it.
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      06-12-2012, 12:31 PM   #11
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Quote:
Originally Posted by signes View Post
Wider wheels aren't going to make a difference when the tires are the same width.
Incorrect..the same size tire is slightly more stretched on wider wheels so there is a larger contact patch and less sidewall flex
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      06-12-2012, 01:35 PM   #12
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More stretched doesn't increase the contact patch. Even if it did the difference would be negligible.
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      06-12-2012, 03:55 PM   #13
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Quote:
Originally Posted by tibra1 View Post
Incorrect..the same size tire is slightly more stretched on wider wheels so there is a larger contact patch and less sidewall flex
Contact patch isn't affected by the width of the tire, only by inflation pressure and the weight of the car. As I have said before, a wide tire will have a wider but shorter contat patch while a narrower tire will have a narrower but longer contact patch. The actual contact area will be the same.
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      06-13-2012, 05:56 AM   #14
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i put PSS on my 328i and it broke lose on 1st gear with DSC off. lol
power is not the problem. i think OP might be babying his car.
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      06-13-2012, 08:41 AM   #15
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OP is just not trying hard enough
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