offset on wheels
 

What is stock offset on an 86 5 lug wheel? and what is the most that can fit? I'm looking at some wheels and I want to know how they will fit.

Re: offset on wheels
 

the stock setting should be +40mm. thats what mine are on my stock 15's for my n/a. on my 17x7's (one inch wider than stock) i also got +40mm (with 215/45 tires)...the fronts are close...but still fit fine.

Re: Re: offset on wheels
 

The sock 15" I have are +40mm which confirms the above.

I also have 17" (see the sig) but they have a +35mm offset which puts them 5mm further away from the hub. Looks good and no rubbing at all, even at extreme lock (turn).

I'm going to be getting some 16 x 7's that weigh in at 14.5 lbs. with an offset of 40mm. will they fit?

thanks

They will fit fine. That is the stock size of the T2 wheels

hmmm... wonder it that means they'll accept them for ES in the scca.......;) :D

one more question
 

Is it possible to run 225 all around?
will it rub in the front?
what rim width would i need 17 x 8" ?
cause i'm thinking about 17"

Only on a GTUs or equivalently prepared car - power nothing & the 4.30 rear.

For autocrossing purposes, you'd be better of with the stock 15's and 215 (or 225)/50-15's. They'll give you shorter gearing (better accel) and a lower center of gravity.

I've autocrossed on both the stock 15 & 16 wheels. While the 16's will provide a (very) little more grip, it's not worth the taller gearing.

On my GTU, I have 16x7's and can BARELY fit 225/50 R16's...about 1/16th in clearance from the front springs.

15 and 16 inch will give you the same grip given the same tire and same width. You can get 225/50/15s, they do offer tires in that size. If you can fit it in the front, thats the best size for autox

225/50 15 & 16 may have the same width, but the 16 will have a larger diameter, therefore a larger contact patch. A bigger patch = more grip (sideways and braking), just not very much more.

wheel
 

i took a look at a tire calculator...and it looks like 215/45/17 would fit on all fours and my speedometer would only be off .3 too fast which would make 60mph really 59.8
this wouldn't mess up my gearing would it?
does anyone have this setup and does it fit in all four corners?

What is the bolt pattern for the 5 bolt wheels?? Never mind I found it, and here it is 5 on 112mm (4.409")
Audi - 5000 Turbo, Quattro '86-'87
Mazda - RX7 GSL '86-'87
Mercedes - all '77-'89
VW - Transporter, Vanagon '71-'89



5 on 4-1/2 (114.3 mm)
AMC Gremlin, Hornet, Pacer, Javelin, Matator, AMX
AMC - most models (exc. Jeep) '40-'89
Chrysler/DeSoto - all full size RWD cars (exc. Imperial) '37-'89
Datsun/Nissan - 1600-2000 '65-'73
- 300ZX, 200SX V6 (some) to '89
Dodge van
Dodge 1/2 ton P.U.
Dodge - all full size cars & P.U.'s '37-'89
- Dart, Demon, Swinger '73-'80
Ford 1/2 ton van
Ford Granada, Monarch
Ford - All full size cars '49-'72; '79-'85
- Fairlane '62-'79
- T-Bird '55-'71; '77-'79
- Mustang 5-bolt '65-'73
- Maverick 5-bolt all
- Mustang SVO '85-'86
- Ranchero '68-'84
- Aerostar, Probe, Bronco II/Ranger to '89
Hudson - all '48-'56
Lincoln - all '70-'72; '80-'89
Mazda - RX7 Turbo, 626, 929, MX6 '86-'89
Mercury - all full size cars '52-'54; '61-'72; '79-'85
- Cougar '67-'79
Mopar '73-up "A" body
Plymouth - all full size cars '37-'89
- Barracuda '70-'74
- Duster, Valiant, Volare '73-'80
Pontiac - Tempest, LeMans '61-'63
Studebaker - all '51-'66
Toyota Crown, Hilux P.U.
Toyota - 2WD P.U. '69-'89
- Supra Turbo '86-'89
Volvo 122, 1800

ok, this is a little off the subject but somewhat the same. would it change the gearing at all if i got some bigger wheels, but mached the stock size tires heighth with some low profile tires?

that was kind of confusing to type so i will put it another way. i have the stock rims with stock tires on my car and i want to go to bigger wheels, so i get the bigger wheels and get some low profile tires and they turn out to be about the same height as the stock rims/tires would that change the gearing?

Yes, you can maintain the same overall diameter by lowering the sidewall as the wheel gets larger.
You can use http://www.miata.net/garage/tirecalc.html to figure out how much lower your profile needs to be.

hey, thanks for the link, that is pretty cool and definatly answered my question.