997.1 S Tire Replacement
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Registered User
Joined: Apr 2008
Posts: 137
From: Calabasas, CA
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997.1 S Tire Replacement
Hi Guys,
It's time to replace the original Pirelli's and have a couple of questions:
1) Will upgrading to 305/30/19 in the rear provide an noticeable increase in understeer (car is stock)?
2) Which tires should I consider?
Thanks!
It's time to replace the original Pirelli's and have a couple of questions:
1) Will upgrading to 305/30/19 in the rear provide an noticeable increase in understeer (car is stock)?
2) Which tires should I consider?
Thanks!
Registered User
Joined: Nov 2009
Posts: 499
From: SC
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I'm replacing my Bridgestones with the Michelin Pilot Super Sports in the next 3-6 weeks. I already have 305s and rarely have noticeable understeer on the track.
My Porsche shop did dial in some camber and toe on four wheel alignment.
My Porsche shop did dial in some camber and toe on four wheel alignment.
Last edited by Don; Jan 19, 2015 at 07:39 PM.
Registered User
Joined: Mar 2013
Posts: 389
From: Midwest
Rep Power: 29
My 08 w/ oem Sport wheels (305's) are/were awful understeering, and I was at stock camber settings.
After installing H&R sways, finally my car will rotate and not plow anymore.
iirc, my front was soft, and rear stiff setting.
I am also running Michelin PSS... awesome tire.
After installing H&R sways, finally my car will rotate and not plow anymore.
iirc, my front was soft, and rear stiff setting.
I am also running Michelin PSS... awesome tire.
Registered User
Joined: Jul 2010
Posts: 103
From: Northern Virginia
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997.1 S Tires
I changed mine from conti's to the PSS. NB Stock suspension except H&R springs. I put 305's on the rear.
Much less harsh ride, better handling and no problem with understeer. I havent tracked but do drive fairly aggressively.
Much less harsh ride, better handling and no problem with understeer. I havent tracked but do drive fairly aggressively.
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From: Seattle, WA
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Joined: Jul 2011
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From: Viera, Florida
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No problems with the 305s. Changed from Bridgestones to MPSSand seem to get more miles from the MPSS than the Potenzas, maybe a little harder? Only complaint is they, MPSS, are bumpy when cold.
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damon@tirerack.com
877-522-8473 ext. 4643
574-287-2345 ext. 4643
**Don't forget to add my name to online orders!**
Or use this link:
http://www.tirerack.com/a.jsp?a=BH1&url=index.jsp
Registered User
Joined: Aug 2009
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From: SF Bay Area
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If it's a street car then Pilot Super Sports are fantastic. Going with 305's in the rear will likely increase understeer because you're increasing the grip at the rear end. You can either go wider up front or have the understeer tuned out.
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Joined: Oct 2011
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I have PSS and they are great. I was thinking of trying the Conti's next time around (because I think they make an all-season that fits, am I wrong???), but based on your experience, would I just be better served staying with the Michelin's?
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Joined: Oct 2013
Posts: 215
From: texas
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wife's "08" CS4 is running conti DWS and we love them. Smooth, quite and long lasting. That said, we don't track the car. It is her daily driver. I have pushed it pretty hard and it handles great but nothing to compare with what I would encounter on a track.
