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KEEP M3POST ALIVE BY DOING YOUR TIRERACK SHOPPING FROM THIS BANNER LINK! |
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03-03-2008, 06:19 PM | #1 |
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Pilot Sport Cup Fitment Question
So, I am considering track tires for my M3. A lot of people here mentioned the Cups, so I did a little research.
The Concept M3 came with 19" CSL + Cups: Front: 235/35/19 Rear: 265/30/19 However, the OE 19s come with: Front: 245/35/19 Rear: 265/35/19 So, using the tire diameter calculator, I computed the difference between OE and Cups: Front: -4.891% Rear: -4.13% So, my question is: is such a big difference in diameter still going to be ok on the M3? Tire rack recommends deviating within 3% of the OE diameter. Moreover, for 19" wheels, Cups only come in: 235/35/19 265/30/19 305/30/19 325/30/19 Thus, the 235 front and 265 rear seem to be the only possible choices for Cups to be used on the M3. There is a big difference in diameter on possible 18" wheels+tires also. Advice? Comments? |
03-03-2008, 08:35 PM | #2 |
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I have the same dilema and I have settled on going with an 18" setup with the New Toyo R888 for trackday & Solo 1 use.
http://www.toyo.com/docs/tires/tires...category=sport I will be using 255/35-18's which are 25.1" high for the fronts 265/35-18 25.4" rears At least this combination will retain some of the stagger of the stock setup and will lower the tall stock gearing by a little bit.I am still checking on the availability of the tires as Toyo in Canada has never been great at supplying "funny" sizes in the performance tire line.Once I know I will start working on a wheel setup. Failing this I will probally just run 245/40 - 18's all the way round and least I will be able to get the back around to come around!I want to run the Toyo's as they support Grassroot Motorsports big time in our region. |
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03-03-2008, 10:05 PM | #3 | |
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Drives: 2023 M2 Coupe, 2020 GLE 450
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Location: Lake Oswego, OR
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Michelin Pilot Sprt Cup+ sizes
Quote:
http://www.michelin.co.uk/uk/front/a...20080128103043
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Greg Lake Oswego, Oregon, USA 2023 M2 Coupe - Brooklyn Grey/Cognac/CF, 6MT; 2020 MB GLE 450 |
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03-03-2008, 10:18 PM | #4 |
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ic. they are listed as XL on the US web site. thanks for the info.
http://www.michelinman.com/tires/ult...lot-sport-cup/ |
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03-04-2008, 08:28 PM | #5 |
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ideal would be 265 all around. 4% change in diameter should be fine for the track.
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