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19" Wheel Fittment
#1

Hello...wanted some feedback on this before I take the plunge on the wife's cabrio.



Wheels are 19X8.5F and 19X10R offset (respective) 47mm and 56mm



note, the wheel maker has stated that I need a minimum 3mm spacer on the front to clear the hub, but says a 7mm H&R works fine.



tires would be 235/35/19 and 265/30/19



will this fit??? should I go with a 3mm or 7mm spacer for the front???



TIA!!
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#2

19s are a HUGE problem (pardon the pun) - weight is a big consideration - those offsets won't work with those widths either - the profile of the tires you specced makes for way too large of an outside diameter too - you need to run a 25 series tire if you want to run a 19 in that size



by the way, i believe there is even a memo from porsche recommending against wheels this big
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94 Midnight Metallic Blue Cab Porsche 968 w/deviating cashmere/black interior and WAY too many mods to list - thanks to eric for creating www.968forums.com



"It isn't nearly as expensive to do it right as it is to do it wrong."
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#3

[quote name='lsinlv' post='40031' date='Aug 16 2007, 05:00 PM']Hello...wanted some feedback on this before I take the plunge on the wife's cabrio.



Wheels are 19X8.5F and 19X10R offset (respective) 47mm and 56mm



note, the wheel maker has stated that I need a minimum 3mm spacer on the front to clear the hub, but says a 7mm H&R works fine.



tires would be 235/35/19 and 265/30/19



will this fit??? should I go with a 3mm or 7mm spacer for the front???



TIA!![/quote]





thanks! I was also thinking the same thing, but kept geting assurances from the wheel maker that thses would be fine......I will stick with a 18X8 and 18X10 fittment.





<img src="/forum/images/smilies/968/cool.gif" class="smilie" alt="" />
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#4

yeah - they love to sell you wheels - makes me nuts - just because they bolt up, doesn't mean they will "work"



here's a quick way to see how much they believe that - you tell them that if they rub, all costs are on them - if they snap a hub or spindle, all costs are on them



if you wreck the car or get hurt because of it, all costs are on them
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94 Midnight Metallic Blue Cab Porsche 968 w/deviating cashmere/black interior and WAY too many mods to list - thanks to eric for creating www.968forums.com



"It isn't nearly as expensive to do it right as it is to do it wrong."
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#5

[quote name='lsinlv' post='40031' date='Aug 17 2007, 10:00 AM']Hello...wanted some feedback on this before I take the plunge on the wife's cabrio.



Wheels are 19X8.5F and 19X10R offset (respective) 47mm and 56mm



note, the wheel maker has stated that I need a minimum 3mm spacer on the front to clear the hub, but says a 7mm H&R works fine.



tires would be 235/35/19 and 265/30/19



will this fit??? should I go with a 3mm or 7mm spacer for the front???



TIA!![/quote]



I'm with the wheelmaker, they should fit fine,7mm spacer would probably be better.The front diameter is a little big, but I run 255/35 18 on the track(9" 53 et wheel) and they don't rub, street would be fine.25 profile is only available in limited sizes.



Not really a performance choice, but they would look great on a cab.
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#6

looks are not everything - even the very light 18s i have on my car are adding a LOT of stress to the hub, bearing, spindle, and suspension components



pay close attention to the loads, and especially the wheel weights - it is VERY easy to wear things out or break things if you don't - do NOT exceed a combined tire/wheel weight of 56lbs without full expectation of failures -



as i said, porsche put out a memo about this for a reason
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94 Midnight Metallic Blue Cab Porsche 968 w/deviating cashmere/black interior and WAY too many mods to list - thanks to eric for creating www.968forums.com



"It isn't nearly as expensive to do it right as it is to do it wrong."
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#7

I never looked at things that way: hub stresses etc. I guess since wheel alloys have gotten lighter since 1995, porsche figured putting 18" wheels on our cars was finally acceptable? What about those ultra light $9000, 14lbs, 18" magnesium carbon fiber wheels? Theoretically if they made a 19" version that was, say, 19lbs or something, would it be ok you think? Not that I'm considering going larger than 17" any time soon, but you know, these things are good to know <img src="/forum/images/smilies/968/biggrin.gif" class="smilie" alt="" />
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#8

my thoughts are that the only remaining extra load would be from the increased grip of the newer better and wider tires



i'm keeping my fingers crossed, but i know that that hubs break on race cars all the time, even on stock wheel sizes, and most of the guys scramble to install the stronger M030 hubs
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94 Midnight Metallic Blue Cab Porsche 968 w/deviating cashmere/black interior and WAY too many mods to list - thanks to eric for creating www.968forums.com



"It isn't nearly as expensive to do it right as it is to do it wrong."
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