Thoughts on these wheels?
02-19-2011, 05:06 PM
#46
Race Car
Double WOOT! Posted in member to member area wheels I have been looking for and lo and behold maybe an hour later a member, agent325, contacted me saying he has a set! Some minor curb rash which is no biggie since local wheel repair place can make them like new for $100 each and they come to my location to do it! EASILY saved me over buying the othes I found by having just paid the Rennlist membership which without would not have had access to the "member to member' area!
And have already confirmed (THANKS SEAN RATTS !!) they will fit my 928. They are
Fronts 18 x 7.5 50 offset Rear 18x10 Offset 65
Curious if will need alignment after install of new wheels and tires after removing OEM ones or not... ?
And have already confirmed (THANKS SEAN RATTS !!) they will fit my 928. They are
Fronts 18 x 7.5 50 offset Rear 18x10 Offset 65
Curious if will need alignment after install of new wheels and tires after removing OEM ones or not... ?
Offset Calculator
Here is a thread about the shock/spring combos:
https://rennlist.com/forums/928-foru...-bilstein.html
A set of Bilsteins are $750 I think at 928sRUs & Eibachs $200 at 928 Int'l--if both deals are still on. Also Koni's are less than $600/set at Tire Rack right now...
If you change 2 or 4 wheels and tires, regardless of car, always good to get a 4 wheel alignment. That is a whole 'nother thread here....
02-19-2011, 06:30 PM
#47
Race Car
I think it must have been an option Erkka (as you mention M415)...I was SHOCKED when I took the rear wheels off and there were no spacers on the back and the studs were the regular short ones like on OB cars! Of course if I had looked closely I would have known as the wheels/tires were well tucked in as on OB's... I would have guessed ALL S cars would have had the spacers! This car was really a stripped down model. No cruise control, 4 speaker stereo (they had the 6 or 8's by '85) and a few other things missing like the rear spacers that I would have expected to see on an '85 S car.
Dan
'91 928GT S/C
475hp/460lb.ft
02-19-2011, 06:45 PM
#48
Three Wheelin'
Thread Starter
Check out this Excel Spreadsheet Andrew Olson prepared for offset & spacers:
Offset Calculator
Here is a thread about the shock/spring combos:
https://rennlist.com/forums/928-foru...-bilstein.html
A set of Bilsteins are $750 I think at 928sRUs & Eibachs $200 at 928 Int'l--if both deals are still on. Also Koni's are less than $600/set at Tire Rack right now...
If you change 2 or 4 wheels and tires, regardless of car, always good to get a 4 wheel alignment. That is a whole 'nother thread here....
Offset Calculator
Here is a thread about the shock/spring combos:
https://rennlist.com/forums/928-foru...-bilstein.html
A set of Bilsteins are $750 I think at 928sRUs & Eibachs $200 at 928 Int'l--if both deals are still on. Also Koni's are less than $600/set at Tire Rack right now...
If you change 2 or 4 wheels and tires, regardless of car, always good to get a 4 wheel alignment. That is a whole 'nother thread here....
As far as the shocks/struts, my question was really whether is something I need to do after changing wheel sizes as opposed to could do...
Anyone in DFW area, preferrably close to Arlington/Irving have suggestions on good aligment shop?
02-19-2011, 07:06 PM
#49
Addict
Rennlist Member
Rennlist Member
M415 was option in '84-86 MY. Except maybe in US models which might have gotten it as standard after early '84 MY when it was optional. PET isn't very clear on this. In any case it was popular option in ROW markets and much more than half of the cars got it.
02-20-2011, 04:48 PM
#50
Three Wheelin'
Thread Starter
OK, according to the spreadsheet calculator above, will need 15 mm spacers on the rears to keep from rubbing though this is confusing as others say they have the same size and offset wheels with no spacers..
Tire shopping and without knowing the above am confused as to what specific size to get for the tires..
03-02-2011, 10:28 AM
#51
Three Wheelin'
Thread Starter
Anyone here using 10mm spacers?
Put my new (to me) wheels on after having them refinished! Bad picture but better than none... Have to remove fronts to trim dust cap so center caps will go on. Rears are 18 x 10 with 65 offset, used Porsche 17mm spacers, they rub ever so slightly so gonna either have to roll the rear fenders or try some 10mm spacers (already measured clearance on inner tire side and there is enough space for 10mm which should do the trick).
Anyone here using 10mm spacers? If so were the OEM studs long enough or did you have to install longer studs? Would rather not have to install new studs for the obvious reasons....
AND.. THANK YOU SEAN for the steel bolts! Much appreciated!
Overall LOVE THE WHEELS!
Anyone here using 10mm spacers? If so were the OEM studs long enough or did you have to install longer studs? Would rather not have to install new studs for the obvious reasons....
AND.. THANK YOU SEAN for the steel bolts! Much appreciated!
Overall LOVE THE WHEELS!
03-02-2011, 10:36 AM
#52
Addict
Rennlist Member
Rennlist Member
OEM studs probably aren't long enough. 7mm is usually thickest which is still relatively safe to use. 15mm is thinnest bolt-on spacer commonly available.
03-02-2011, 11:22 AM
#53
I'll bring your nuts to the breakfast, unless I forget then we will have to run back to the house. Rolling the fender is not a big deal at all, I'll show you how to do so safely.
Where are the pictures?
Where are the pictures?
03-02-2011, 11:28 AM
#54
Three Wheelin'
Thread Starter
Here are pics...
When you take a look on Saturday be great to get opinion on best solution; rolling fender or getting thinner spacers
03-04-2011, 09:07 PM
#56
Three Wheelin'
Thread Starter
Wheels fit after all.. w/out spacers...
Was not really keen on rolling the fenders so I got under the car tonight to see how much of the tire was rubbing the fender lip in the rear and how much clearance with the suspension, muffler, etc. on the inside. After 6 or so trips back and forth, measuring on the ground as well as with wheels in the air was stumped as all my measurements, checking and double checking said without the 17mm spacers it would not rub on the inside anywhere.
Sooo.. of the the wheels came, removed the spacers and remounted. Spun by hand while in the air and have close to 1/2 gap. Lowered it and checked again, same... Put a wheel up on curb, still no rubbing..
End of the story, Porsche Sport Classic II's in 10" width and 65 offset mounted with 285/35/18 tires will fit without spacers. Have a bit could push them out with spacers, 7mm or so, so might do that later.
Looking forward to meeting other locals tomorrow morning!
Sooo.. of the the wheels came, removed the spacers and remounted. Spun by hand while in the air and have close to 1/2 gap. Lowered it and checked again, same... Put a wheel up on curb, still no rubbing..
End of the story, Porsche Sport Classic II's in 10" width and 65 offset mounted with 285/35/18 tires will fit without spacers. Have a bit could push them out with spacers, 7mm or so, so might do that later.
Looking forward to meeting other locals tomorrow morning!
03-05-2011, 10:34 AM
#57
Pro
Looks great. Just curious about your tire sizes and brand. I'll be shopping for 18" tires soon. Can't decide on the aspect ratio yet. 40 or 45 front, 30 or 35 rear? Leaning toward 225/40/18 front, 285/30/18 rear.
03-05-2011, 11:01 AM
#58
Three Wheelin'
Thread Starter
I went with 225/40/18 up front and 285/35/18 in back. Rears are 65 offset and fit perfect with no spacers. Tires are Hankook V12's from tirerack.com
03-05-2011, 11:11 AM
#59
Pro
03-05-2011, 05:13 PM
#60
Rennlist Member
Yes... his are.
"Aspect Ratio" is simply the percentage of the width of the tire shown as the height of the sidewall (on a 225/40/18 -the '40' is the aspect ratio and 40% of the width of 225mm).
225/40/18 = 90mm sidewall
285/35/18 = 99.75mm sidewall (taller)
"Aspect Ratio" is simply the percentage of the width of the tire shown as the height of the sidewall (on a 225/40/18 -the '40' is the aspect ratio and 40% of the width of 225mm).
225/40/18 = 90mm sidewall
285/35/18 = 99.75mm sidewall (taller)