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New 944 S2 owner!

Simon - his wheels are 16" ... I ran the Pirellis on 16" clubsport wheels, so 225 is ok on a 9" rear. might be a touch wide on a 7" front though.
 
Thanks Ed. I should realise that as I have a set of 993 Winter Cups in my garage! This is what happens when you dont go to bed early. [:D] Id also suggust migrating to 17" wheels on a track car, principally because the tyre choice is far better and the tyres themselves are cheaper. Id avoid 7" & 9" sizes though, because 7" is too narrow - an issue that Porsche addressed with the '90 specTurbos wheels. Id recommend the 996 Carrera wheels which I have on my Turbo, as theyre plentiful, available in a range of widths and theyre never seen on VWs, so theres no Dub tax to pay on them, making them cheap. Simon
 
Even better - 987 Boxster / Cayman 17" rears - 8J Et40 and very light.... I paid £400 for the set of Boxster wheels from Jasmine - and they were in great condition. Compare that to the cost of genuine Cup 1 / 2 in the same condition and they are a bargain (and much lighter). I also have 2 of the Cayman wheels - but still scouting around to complete that set. [link=http://www.wheelenhancement.com/index.php?t=Wheels]Useful link to all the Porsche wheels[/link]
 
Thanks Ed/Simon, I didn't think there was any issues with the current setup! So really I need 8" all round and presume I currently have 9" or 8.5j's on the rear but the fronts are definetly 7" so no chance of a 225 on those.. I haven't had any understeer on the 205 fronts and it turns in sharply on them, I also notice the boxster runs similar on these wheels. http://www.ebay.co.uk/itm/GENUINE-PORSCHE-17-BOXSTER-S-ALLOY-WHEELS-MICHELIN-TYRES-VW-GOLF-CAMPER-/180954223761?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item2a21b65491 Much appreciate your input!
 
I have 225s on the front of my wheels and they are exactly the same as yours, 225 they are the max size tyre Bridgstone recommend for a 7 inch wheel so within spec too, my plan is to get a second set of 993 winter wheels (let me know when you no longer want yours[;)]) and fit them with 225s all round for track days.
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In my view the rubber you use is going to have more of an influence on grip over tyre sizes, dont forget the 968 Club Sport runs 255 rear and 225 fronts on 17' wheels, so not a ratio far off what you have now, its not exactly known for its awful under steer either... Edd
 
So any 944 isn't going to understeer like an Audi [;)], but you can improve things, particularly on track Most manufacturers set up their RWD road cars to understeer - they think it's safer that way. E36 m3 is a good example. A friend of mine has an M3 track car with 888's up front and old road tyres rear to try and quell the understeer (it's a low budget track car - all his money goes on his sprint car). The Boxster, and the 911 are fitted with a very staggered setup - these wheels often find their way onto 944's as in this case. That's why I suggested just using the 8" rear of a 987 Boxster. 944S2's and turbos have a slightly staggered setup, and will understeer on the limit. (As will a 968CS). It's not horrible or massive understeer, but it is certainly noticeable on a track. Will's car may have some other tweaks we don't know about - arb's for example, or huge -ve cambers. He may also be a trail braking king, which helps get the nose in. From everything I've read, racers tend to run their cars with square setups - 245/45/16 for 944 turbos or S2's if they aren't allowed 17's. I have tried, and prefer, a square setup on my 944's. That's all really
 
Yes its my plan to run 225s all round on the track, partly as you say its what the racers do but also I cant get the AD08's in 245 section either. Having said that if in theory the slightly narrower tyres out front should give understeer then I certainly havent noticed it on track, if its there its very subtle, in fact the only time I lost traction was at the rear due to power oversteer. It appears Will is experiencing similar. Edd
 
ORIGINAL: Copperman05 Having said that if in theory the slightly narrower tyres out front should give understeer then I certainly havent noticed it on track, Edd
Well course there's an easy answer to that - you're going too slow into the corner [;)] I was surprised that traction was an issue for me at Anglesey coming out of a couple 2nd gear corners - it was never a problem in the turbo. Haven't done a wet trackday in the S2 yet, so that might be interesting.
 
So if I fit 225's all round what profile would be best 50's? I'm either going for some PS2's or track tyre AD08's any help appreciated...
 
225/45/17 or 225/50/16 I'd go AD08 myself - I will find a link to that French track tyre test
 
that tyre test I mentioned.. [link]http://trackparts.ch/images/pdf/semislicktest%202012%20echappement.pdf[/link]
 
Thanks Ed, definetly going with the Yoko's but I think 205/55/16 on the front and 225/45/16 on the rears will fit better on my current wheels?
 
225/50/16 would be the correct size for S2 rears (usually on 8J but they will fit on a 9J rim) but as Simon & I have said previously, it might be worth going to 17" wheels & selling the 16's For some reason 17" tyres are cheaper, and there is much more choice. Same width tyre F&R also means you can swap them round to even wear. Of course you might hate it with a square setup. Maybe we could swap cars for a few laps sometime & you could see the difference?
 
I like the 16" wheels, but like you say tyre choice is rubbish! I think the 225's will look stretched on the 9J rim so I have been looking for some 17"s preferably the same width all round. It would be great to swap cars to see how yours feels with that set up....
 
Well I'm at Spa on October 10th [:D] I won't be booking any more UK days until I get back from there, but might do Donington with javelin on the 30th (I think that's the date) It's really hard to get a set of wheels same size all round - I had bought 2 sets of 16" cups to use the 8J rears when I picked up the 17" AD08's. I sold the cups for approx £300 a set, and paid £400 for four Boxster rears - from Jasmine.
 
In my experience, you can run a staggered setup quite effectively without understeer tendancies. I have run 225x16F + 245x16R (Hoosier R6) as well as 225x17F and 255x17R with very neutral handling. It is simply a matter of optimisng the camber and ARBs to suit. If you do experience understeer you could fit the 19mm adjustable rear sway bar. Have fun Eric
 
Ed, I'm waiting for Brian to call me back from Jasmine to see if he has some wheels in stock which I'll fit some AD08's too. In the meantime i'm going to order some more T1-R's for the rears as they are bald on the inner edge. Eric, My car has a fair bit of camber and also has the adjustable rear ARB so that's probably why I'm not experiencing any understeer (or i'm going to slowly).[:D]
 

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