944 S2 Wheels: Any reason (ie., performance-related) reason to go wider than stock?
11-10-2016, 09:08 PM
#1
944 S2 Wheels: Any reason (ie., performance-related) reason to go wider than stock?
I'm looking into new wheels for a street-driven 944 S2; is there any reason (besides cosmetics) to go with wider rims than the stock 7.5"/9"?
11-10-2016, 10:07 PM
#3
Burning Brakes
Porsche shows the "stock" rim sizes were 7" x 16" front & 8" x 16" rear, so it looks like your wheels are already a little wider, but as long as the offset is correct (55 mm front, 52.3 mm rear) then you shouldn't have any issues.
If you are buying new wheels, or used for that matter, go 17" or 18", and 7-8" front with 8-9" rear.
Unless your suspension is modified, tire widths of 225-235 front and 235-255 rear works well for a stock S2 if you want a little more grip. As always, have you tire dealer test the new sizes before buying.
On the other hand if you are "streeting" the S2 (daily driver), go same size tires (225) and rims (7-7.5") and you can rotate for longer tire life.
If you are buying new wheels, or used for that matter, go 17" or 18", and 7-8" front with 8-9" rear.
Unless your suspension is modified, tire widths of 225-235 front and 235-255 rear works well for a stock S2 if you want a little more grip. As always, have you tire dealer test the new sizes before buying.
On the other hand if you are "streeting" the S2 (daily driver), go same size tires (225) and rims (7-7.5") and you can rotate for longer tire life.
11-10-2016, 10:43 PM
#4
I didn't know that - is understeer a problem with the 944? I'm a new owner, so I haven't noticed it yet.
Good advice - thanks! Though I thought the S2 and Turbo S had the same size wheels - 7.5" / 9"?
Are full-numbered rims more advisable? That is, instead of 7.5", get an 8"? I know it won't make a big difference in the tires I can run (and no difference in this context, since regardless of how wide a tire I choose, there won't be a width I can't use on a 7.5" vs an 8" since the wheel-well size is the real limiter in that scenario).
Porsche shows the "stock" rim sizes were 7" x 16" front & 8" x 16" rear, so it looks like your wheels are already a little wider, but as long as the offset is correct (55 mm front, 52.3 mm rear) then you shouldn't have any issues.
If you are buying new wheels, or used for that matter, go 17" or 18", and 7-8" front with 8-9" rear.
Unless your suspension is modified, tire widths of 225-235 front and 235-255 rear works well for a stock S2 if you want a little more grip. As always, have you tire dealer test the new sizes before buying.
On the other hand if you are "streeting" the S2 (daily driver), go same size tires (225) and rims (7-7.5") and you can rotate for longer tire life.
If you are buying new wheels, or used for that matter, go 17" or 18", and 7-8" front with 8-9" rear.
Unless your suspension is modified, tire widths of 225-235 front and 235-255 rear works well for a stock S2 if you want a little more grip. As always, have you tire dealer test the new sizes before buying.
On the other hand if you are "streeting" the S2 (daily driver), go same size tires (225) and rims (7-7.5") and you can rotate for longer tire life.
Are full-numbered rims more advisable? That is, instead of 7.5", get an 8"? I know it won't make a big difference in the tires I can run (and no difference in this context, since regardless of how wide a tire I choose, there won't be a width I can't use on a 7.5" vs an 8" since the wheel-well size is the real limiter in that scenario).
11-11-2016, 12:55 AM
#5
Burning Brakes
Are full-numbered rims more advisable? No special reason I know of, unless you are either getting close to maximum width you can fit in your vehicle, or you are limited by offsets.
Always check the tire manufacturer's specs for preferred rim width. They usually give a range and as long as you are within you're OK.
Though I thought the S2 and Turbo S had the same size wheels - 7.5" / 9"?
Turbo "S" uses a Fuchs forged wheel, S2 uses the "D90's", and they are different in width, Turbo "S" being slightly wider. Don't get excited, they are hard to find and expensive in the correct offset. 928's had similar wheel but with different offset.
Always check the tire manufacturer's specs for preferred rim width. They usually give a range and as long as you are within you're OK.
Though I thought the S2 and Turbo S had the same size wheels - 7.5" / 9"?
Turbo "S" uses a Fuchs forged wheel, S2 uses the "D90's", and they are different in width, Turbo "S" being slightly wider. Don't get excited, they are hard to find and expensive in the correct offset. 928's had similar wheel but with different offset.
11-11-2016, 09:36 AM
#6
Addict
Rennlist Member
Rennlist Member
Turbo S is 7" and 9", the S2 non-M030 is 7" and 8".
I have seen two S2s, non M030, one of them mine, that appeared to have 9" rear D90s from the factory but these seemed to be anomalies, maybe whatever was getting used up that day got put on the car. These are non TPMS wheels. Strange.
I have never seen the 7.5" fronts, not sure if they are real.
I have seen two S2s, non M030, one of them mine, that appeared to have 9" rear D90s from the factory but these seemed to be anomalies, maybe whatever was getting used up that day got put on the car. These are non TPMS wheels. Strange.
I have never seen the 7.5" fronts, not sure if they are real.
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11-11-2016, 12:21 PM
#8
most production cars are built to understeer--makes them safer. But it comes down to driver preference. If you'd like to get your rear a little looser, wider front contact patches help. Back when I was in the Subaru performance community, many drivers would go wider in front than in rear for that reason.
11-11-2016, 06:45 PM
#10
The S2 is stock with 7/8" wheels, i'm currently running them and find the 205/225 combo is pretty decent but it is under tired. I had 7/9" 17's on it with 225/255's and it understeered like hell. Ill be going for a 17x8 set with 235 or 245's all around next time i get wheels.
11-11-2016, 08:55 PM
#11
The S2 is stock with 7/8" wheels, i'm currently running them and find the 205/225 combo is pretty decent but it is under tired. I had 7/9" 17's on it with 225/255's and it understeered like hell. Ill be going for a 17x8 set with 235 or 245's all around next time i get wheels.
11-11-2016, 09:14 PM
#12
Burning Brakes
7.5/8" front and 9/9.5" rear will give you the best options for tires with a bias towards performance.
Same size rims 7/7 or 8/8 will give you tire options with a bias towards economy.
In your first post you state your S2 has 7.5/9" rims; is that a known fact or do you still have the stock D90 wheels with 7 front / 8 rear?
Same size rims 7/7 or 8/8 will give you tire options with a bias towards economy.
In your first post you state your S2 has 7.5/9" rims; is that a known fact or do you still have the stock D90 wheels with 7 front / 8 rear?
11-11-2016, 09:20 PM
#13
The S2 is stock with 7/8" wheels, i'm currently running them and find the 205/225 combo is pretty decent but it is under tired. I had 7/9" 17's on it with 225/255's and it understeered like hell. Ill be going for a 17x8 set with 235 or 245's all around next time i get wheels.
7.5/8" front and 9/9.5" rear will give you the best options for tires with a bias towards performance.
Same size rims 7/7 or 8/8 will give you tire options with a bias towards economy.
In your first post you state your S2 has 7.5/9" rims; is that a known fact or do you still have the stock D90 wheels with 7 front / 8 rear?
Same size rims 7/7 or 8/8 will give you tire options with a bias towards economy.
In your first post you state your S2 has 7.5/9" rims; is that a known fact or do you still have the stock D90 wheels with 7 front / 8 rear?
My assumption was based on things I'd read here, but I may have confused stock S2s for M030 S2s and Turbo S clubsports, the later I am pretty sure had 7.5/9 wheels.
As for my own wheels, the PO replaced the stock ones with Cup I replicas. He had the original, bare D90s, but I didn't buy them. I now wonder if I should have.
11-12-2016, 05:44 PM
#14
Burning Brakes
If the Cup 1's are 17 or 18 inch, you got the best end of the deal. Stay with them.
You mention they are replicas, look for the "Triangle P" symbol, if it's there it is a Porsche wheel, probably made in Italy. If it's not there, it's still a good wheel, possibly just not as light.
S2 D90's are 16" and tire selection is VERY limited.
Wheel ****:
http://www.944racing.de/wheelweights.php
http://members.rennlist.com/911pcars/WheelWts.html
http://www.wheelenhancement.com/index.php?t=Wheels
You mention they are replicas, look for the "Triangle P" symbol, if it's there it is a Porsche wheel, probably made in Italy. If it's not there, it's still a good wheel, possibly just not as light.
S2 D90's are 16" and tire selection is VERY limited.
Wheel ****:
http://www.944racing.de/wheelweights.php
http://members.rennlist.com/911pcars/WheelWts.html
http://www.wheelenhancement.com/index.php?t=Wheels
11-13-2016, 08:29 AM
#15
Rennlist Member
Suggest you call the PO and see if they are still available. Whereas Mille Miglia Cup 1 replicas add at least 8 lbs of unsprung weight, Borbet replicas are boat anchors and add about 24 lbs or unsprung weight.