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Old 02-27-2009, 09:01 PM
  #16  
BostonDMD
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Originally Posted by Bull
Very reasonable approach! And , therefor, you have answered your own question since the PO is much more experienced than you, ran the car very successfully, and said you should run 225/245, as he did.
Agreed.......

......but it still would be nice to learn the difference......
Old 02-27-2009, 09:02 PM
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Bull
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Originally Posted by Brian P
And run R3's
The size choice was there in the R3s 5 years ago too. Or, does someone believe that the 245/275 sizes were developed only for the R6s?

(and 5 years ago Hoosiers were R4s and R5s).
Old 02-27-2009, 09:05 PM
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smlporsche
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It could also be his preference in driving style.
Maybe the PO liked to drift his car around the corners more or was able to rotate it easier with that combination.
Are you comfortable with that?
Old 02-27-2009, 09:05 PM
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BostonDMD
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Old 02-27-2009, 09:06 PM
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BostonDMD
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Originally Posted by smlporsche
It could also be his preference in driving style.
Maybe the PO liked to drift his car around the corners more or was able to rotate it easier with that combination.
Are you comfortable with that?
Sure....... but don't forget I am still a rookie.....
Old 02-27-2009, 09:09 PM
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RedlineMan
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Hey;

Lower rolling and aerodynamic resistance. Likely higher spring rate (stiffer/shorter sidewall). Lighter weight, particularly of the unsprung variety. He might have liked the balance and/or fell better. The rule of thumb is to use the narrowest tire you can get away with. Wide is just that. It does not necessarily = fast. Also, doing what everyone else does is only good if they really know anything.
Old 02-27-2009, 09:13 PM
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jgrant
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Don't forget that you have to take the HP/Torque into account.

If you have too much area under the curve, you need those wider tires.

If you could post your dyno sheets, that would really help.
Old 02-27-2009, 09:16 PM
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ZAPmobile
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Why not try it with both set-ups and see which is best for your driving style. But don't forget Ronnie was one of the best club racers out there, and he really knows how to set up his cars.
Old 02-27-2009, 09:23 PM
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Sean F
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what is the time he set? it was E in the old system, right?

IIRC, that car has short race gears. Is that right?
Old 02-27-2009, 09:24 PM
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KRA993tt
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Do you have a problem with your current set up? If that is what you are accustomed to don't mess with it. You can work into setup changes as you evolve.
Old 02-27-2009, 09:30 PM
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BostonDMD
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Originally Posted by Sean F
what is the time he set? it was E in the old system, right?

IIRC, that car has short race gears. Is that right?
2001, 1:00.55 in the old E class........

Yes, short gears......
Old 02-27-2009, 09:33 PM
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Originally Posted by KRA993tt
Do you have a problem with your current set up? If that is what you are accustomed to don't mess with it. You can work into setup changes as you evolve.
I love the set up in MPCS and RA1s, it is just that I haven't used Hoosiers yet.....
Old 02-27-2009, 09:40 PM
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Originally Posted by ZAPmobile
Why not try it with both set-ups and see which is best for your driving style. But don't forget Ronnie was one of the best club racers out there, and he really knows how to set up his cars.
This is probably the best idea here.







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Old 02-27-2009, 10:07 PM
  #29  
Chris M.
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Paolo have you tried to fit 245/275s under there? I know some run them but I am having rubbing issues with 225/245 as it is.
Old 02-27-2009, 10:12 PM
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Originally Posted by Chris M.
Paolo have you tried to fit 245/275s under there? I know some run them but I am having rubbing issues with 225/245 as it is.
I have and they rub a bit in the front, that is why I am considering going back to the original set up of 225/245 (18"s).....

with my driving skills (rookie) probably won't be able to tell much of a difference between the 2 setups, but at least I will eliminate the rubbing...... just a thought.....


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