Will these wheels work on a 968...???
#1
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Will these wheels work on a 968...???
PN: RHAG851845 RH AG-Cup 8.5x18 45mm
PN: RHAG101840 RH-AG-Cup 10x18 40mm
With/without spacers???
PN: RHAG101840 RH-AG-Cup 10x18 40mm
With/without spacers???
#2
Race Director
I don't think they will work -- the offsets, while close, it a good 10mm off. (Stock offsets on late 944's and 968's are: 55mm front, 52.3mm rear. Spacers won't help, BTW, since a spacer 'moves' the offset the wrong way.
-Z-man.
-Z-man.
#6
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+1 That looks terrible.
But I think the 8.5-45 and 10-40 wheels will work great! I have 8.5" 50mm wheels on my 968 and I definitely need at least an 8mm spacer to make it look right - so the 45mm offset will look good. On the 10" 40mm wheel, I think it will be the same story - 40mm seems like too low of an offset but the wheels are very wide and will probably look good. You might need to have a faint amount of tire stretch to avoid rubbing the fender lip in the rear. But not nasty stretch like in the picture.
EDIT: Was adding numbers wrong, I don't think it will work.
But I think the 8.5-45 and 10-40 wheels will work great! I have 8.5" 50mm wheels on my 968 and I definitely need at least an 8mm spacer to make it look right - so the 45mm offset will look good. On the 10" 40mm wheel, I think it will be the same story - 40mm seems like too low of an offset but the wheels are very wide and will probably look good. You might need to have a faint amount of tire stretch to avoid rubbing the fender lip in the rear. But not nasty stretch like in the picture.
EDIT: Was adding numbers wrong, I don't think it will work.
Last edited by FRporscheman; 08-01-2008 at 01:32 AM.
#7
Race Director
If your case, you effectively changed the offset from 50mm to 42mm with the 8mm spacer. Do you have pics of your setup? How much are you rubbing? I can't imagine that setup working very well for you, especially if you have a stock suspension or push your car at all...
You might need to have a faint amount of tire stretch to avoid rubbing the fender lip in the rear. But not nasty stretch like in the picture.
For reference, Tire Rack Wheel Tech - Offset article.
-Z-man.
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#8
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I have no rubbing. I have a 968 with stock suspension. The front wheels are 7" wide with offset of 55 or 52 I can't remember. The wheel looks like it's too far into the wheel well, it needs to come out at least 10mm. It would look good if it came out 15mm.
The rear is 8.5" wide with offset of either 50 or 48 I can't remember. Again, it's way too far into the wheel well (by "way too far" I mean it's just noticeable). It looks like it needs to come out at least 10mm, would look good with 15.
The car is parked at my dad's house and I'm at my mom's. When I'm there again I'll take pictures.
Offset is not the only number to consider, wheel widths can throw the whole thing off to, since the offset is measured from the center of the whee,l not the face. I have seen pics of a 968 with early offset phone dials, I think 7"ers, and they barely did not rub.
I am not suggesting to stretch the tire like VW owners do. But even some of the Porsche guys buy a tire 1 or 2 sizes smaller than "belongs" on a wheel just to clear fender lips. Think about it, if your car comes stock with 225 rears, on 8" wheels, then you upgrade to 9" wheels and run 245 instead of 255, that's still an upgrade in every way. Plus with slightly stretched sidewalls, there will be much less transition time for the sidewall to flex during cornering.
Do a search, some people have fitted 10" wheels on the late 944/968 body but the recommended tire size will not fit in the wheel well, so some stretch and/or a lot of negative camber will be required. Also IIRC 8.5" is pushing what will physically work on the front.
Of course I have not actually tried these wheels or wheels with similar offsets/widths so if someone has please correct me if I'm wrong.
The rear is 8.5" wide with offset of either 50 or 48 I can't remember. Again, it's way too far into the wheel well (by "way too far" I mean it's just noticeable). It looks like it needs to come out at least 10mm, would look good with 15.
The car is parked at my dad's house and I'm at my mom's. When I'm there again I'll take pictures.
Offset is not the only number to consider, wheel widths can throw the whole thing off to, since the offset is measured from the center of the whee,l not the face. I have seen pics of a 968 with early offset phone dials, I think 7"ers, and they barely did not rub.
I am not suggesting to stretch the tire like VW owners do. But even some of the Porsche guys buy a tire 1 or 2 sizes smaller than "belongs" on a wheel just to clear fender lips. Think about it, if your car comes stock with 225 rears, on 8" wheels, then you upgrade to 9" wheels and run 245 instead of 255, that's still an upgrade in every way. Plus with slightly stretched sidewalls, there will be much less transition time for the sidewall to flex during cornering.
Do a search, some people have fitted 10" wheels on the late 944/968 body but the recommended tire size will not fit in the wheel well, so some stretch and/or a lot of negative camber will be required. Also IIRC 8.5" is pushing what will physically work on the front.
Of course I have not actually tried these wheels or wheels with similar offsets/widths so if someone has please correct me if I'm wrong.
#9
Race Director
FRporscheman: you don't do any track or AX driving, do ya?
BTW: On my S2, on the track I run 8Jx16, 52.3mm ET wheels at all four corners, (Basically two sets of rear stock 16' 968 wheels) shod with 245-45/16's. My car is lowered significantly, and the suspension is upgraded. No rubbing issues. But I suspect if I tried running spacers or the wrong offset, I'd have major rubbing issues, as well as a car that doesn't handle optimally.
Regarding early offset wheels on a 968 - they won't rub if the car is at a standstill or going straight. But turn the wheel a little, and you'll have rubbing for certain. 45mm offset wheels will have the same results -- maybe not as soon as the 23mm offset wheels (Early Phone dials), but they will rub. And why bother with wider rims if you're going to 'stretch' the tire? Wider wheels (with the proper offset and correct suspection numbers) will allow for wider tires to be used.
Getting 9" wheels with 255's in the back isn't a problem, at least with the 944's, if the right offsets are used. I believe I've seen 285's back there on the track. (The fenders were rolled.) Don't know how wide the wheels were, but they had to be 9.5's or 10's. I've heard of folks shoe-horning 255's up front. Anything for more grip....
-Z-man.
BTW: On my S2, on the track I run 8Jx16, 52.3mm ET wheels at all four corners, (Basically two sets of rear stock 16' 968 wheels) shod with 245-45/16's. My car is lowered significantly, and the suspension is upgraded. No rubbing issues. But I suspect if I tried running spacers or the wrong offset, I'd have major rubbing issues, as well as a car that doesn't handle optimally.
Regarding early offset wheels on a 968 - they won't rub if the car is at a standstill or going straight. But turn the wheel a little, and you'll have rubbing for certain. 45mm offset wheels will have the same results -- maybe not as soon as the 23mm offset wheels (Early Phone dials), but they will rub. And why bother with wider rims if you're going to 'stretch' the tire? Wider wheels (with the proper offset and correct suspection numbers) will allow for wider tires to be used.
Getting 9" wheels with 255's in the back isn't a problem, at least with the 944's, if the right offsets are used. I believe I've seen 285's back there on the track. (The fenders were rolled.) Don't know how wide the wheels were, but they had to be 9.5's or 10's. I've heard of folks shoe-horning 255's up front. Anything for more grip....
-Z-man.
#11
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#12
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944 Turbo S cups, IIRC. (But I may be wrong - that's happened to me a couple of times... )
True - I think the person running 255's up front was using 17's. Not 100% sure though.
FYI, if we are talking about 16" wheels there aren't any commercially available 255's out there anymore.
#14
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In fact I do. But I don't see how that relates to whether a wheel will fit a car.
tifo- my 17" 2001 boxster wheels are 7" and 8.5" it's stamped right on it, but I haven't bothered measuring them. Also about the 255, yeah I can't find 255 for my 9" club sports so I have to buy 245, which results in slight stretch but not bad.
tifo- my 17" 2001 boxster wheels are 7" and 8.5" it's stamped right on it, but I haven't bothered measuring them. Also about the 255, yeah I can't find 255 for my 9" club sports so I have to buy 245, which results in slight stretch but not bad.
#15
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In fact I do. But I don't see how that relates to whether a wheel will fit a car.
tifo- my 17" 2001 boxster wheels are 7" and 8.5" it's stamped right on it, but I haven't bothered measuring them. Also about the 255, yeah I can't find 255 for my 9" club sports so I have to buy 245, which results in slight stretch but not bad.
tifo- my 17" 2001 boxster wheels are 7" and 8.5" it's stamped right on it, but I haven't bothered measuring them. Also about the 255, yeah I can't find 255 for my 9" club sports so I have to buy 245, which results in slight stretch but not bad.