Wheel spec's
PCD 114.3
5 hole
60.1 centre bore
Standard 15's
15x6 ET45 195/55/15 front
15x7 ET45 225/50/15 back
It is common to swap the front tyres to 205/50/15's I did this myself without any problems, maybe gave me a tiny bit more oversteer but nothing major.
Aftermarket Wheels
common setups
16x7 ET35 205/45/16 front
16x8 ET38 225/45/16 or 245/45/16 back
17x7 ET35 205/40/17 or 215/40/17 front
17x8 ET35 235/40/17 or 245/35/17 or 245/40/17 back
(since recently changing my rear tyres from 245/35/17's to 245/40/17's the ride is less harsh, but i did need to raise the rear coilovers approx 10mm to stop the tyres rubbing)
17x7.5 ET35 215/40/17 front
17x8.5 ET35 245/35/17 back
17x8 ET35 215/40/17 front
17x9 ET35-ET38 245/35/17 or 245/40/17 or 255/40/17(may rub the arches depending on offset and ride height) back
The wider the wheels/tyres you fit the more you need to pay attention to the offset. As with the wrong offsets you will have problems with the wheels/tyres rubbing on the suspension (offset too high) or rubbing on the outer arch (offset too low)
Coilovers
This is where the fun starts
where as with normal struts the spring seats are above the wheel/tyre, with coilovers the spring, although a lot thinner than normal, runs down past the wheel/tyre giving less room for the wheel/tyre.
Common setup's that work with coilovers without spacers or arch work (coilovers vary depending on model so something that works on one type may not work on another)
17x7 ET35 215/40/17 front
17x8 ET35 245/35/17 or 245/40/17 back
17x8 ET32-ET33 215/40/17 front
17x9 ET38 245/35/17 or 245/40/17 back
With the 8" & 9" setup you can go with slightly higher offsets at the front and fit spacers & go with slightly lower offsets at the back and do arch work.
Offsets
The offset of a wheel is the distance from its hub mounting surface to the centerline of the wheel.
Zero Offset
The hub mounting surface is even with the centerline of the wheel.
Positive Offset
The hub mounting surface is toward the front or wheel side of the wheel. Positive offset wheels are generally found on front wheel drive cars and newer rear drive cars.
Negative Offset
The hub mounting surface is toward the back or brake side of the wheels centerline.
Tyre Calculator
www.miata.net/garage/tirecalc.html
Wheel/Tyre/Offset Calculator
this one will let you know how much closer the wheels will be to the suspension compared with the standard setup
www.rims-n-tires.com/info_specs.jsp
mr2.gordaen.com/wt_calc.php
Min/Max/Ideal tyre widths
www.pneus-online.co.uk...dvice.html
Setups that work (other side of the pond)
www.mr2oc.com/showthre...readid=137
Other make wheel fitment and PCD
www.carlsalter.com/whe...ments.html
Tyre Pressures
UK GT 15" - 31psi front and 35psi rear
UK GT 14" - 26psi front and 32psi rear
JDM Turbo 15" - 29psi front and 33psi rear
these pressures remain the same when fitting different sized wheels/tyres, although you can play about with them to find out whats best for you.
Wheel nut torque settings
www.etyres.co.uk/vehic...toyota.htm
Wheel nut types
wheel nuts spec: 12x1.5mm
standard toyota wheels use flat ended nuts, most aftermarket wheels use conical (tapered) ended nuts. These are sometimes called 'tuner lugs'.
make sure you have the correct wheel nuts for the alloy you are fitting.
Standard
Conical (tapered)
Wheel and Tyre Bible
The Wheel and Tyre Bible
Everything you ever wanted to know about tyres and wheels Wink
also includes very good tyre / wheel calculators
Feel free to add to this, I just thought I'd put some info together to stop the same questions being asked all the time Wink
Cheers
Steve
If mk1 owners & mk3 owners could also do a "what works" post it would be very handy for people Smile
PCD 114.3
5 hole
60.1 centre bore
Standard 15's
15x6 ET45 195/55/15 front
15x7 ET45 225/50/15 back
It is common to swap the front tyres to 205/50/15's I did this myself without any problems, maybe gave me a tiny bit more oversteer but nothing major.
Aftermarket Wheels
common setups
16x7 ET35 205/45/16 front
16x8 ET38 225/45/16 or 245/45/16 back
17x7 ET35 205/40/17 or 215/40/17 front
17x8 ET35 235/40/17 or 245/35/17 or 245/40/17 back
(since recently changing my rear tyres from 245/35/17's to 245/40/17's the ride is less harsh, but i did need to raise the rear coilovers approx 10mm to stop the tyres rubbing)
17x7.5 ET35 215/40/17 front
17x8.5 ET35 245/35/17 back
17x8 ET35 215/40/17 front
17x9 ET35-ET38 245/35/17 or 245/40/17 or 255/40/17(may rub the arches depending on offset and ride height) back
The wider the wheels/tyres you fit the more you need to pay attention to the offset. As with the wrong offsets you will have problems with the wheels/tyres rubbing on the suspension (offset too high) or rubbing on the outer arch (offset too low)
Coilovers
This is where the fun starts
where as with normal struts the spring seats are above the wheel/tyre, with coilovers the spring, although a lot thinner than normal, runs down past the wheel/tyre giving less room for the wheel/tyre.
Common setup's that work with coilovers without spacers or arch work (coilovers vary depending on model so something that works on one type may not work on another)
17x7 ET35 215/40/17 front
17x8 ET35 245/35/17 or 245/40/17 back
17x8 ET32-ET33 215/40/17 front
17x9 ET38 245/35/17 or 245/40/17 back
With the 8" & 9" setup you can go with slightly higher offsets at the front and fit spacers & go with slightly lower offsets at the back and do arch work.
Offsets
The offset of a wheel is the distance from its hub mounting surface to the centerline of the wheel.
Zero Offset
The hub mounting surface is even with the centerline of the wheel.
Positive Offset
The hub mounting surface is toward the front or wheel side of the wheel. Positive offset wheels are generally found on front wheel drive cars and newer rear drive cars.
Negative Offset
The hub mounting surface is toward the back or brake side of the wheels centerline.
Tyre Calculator
www.miata.net/garage/tirecalc.html
Wheel/Tyre/Offset Calculator
this one will let you know how much closer the wheels will be to the suspension compared with the standard setup
www.rims-n-tires.com/info_specs.jsp
mr2.gordaen.com/wt_calc.php
Min/Max/Ideal tyre widths
www.pneus-online.co.uk...dvice.html
Setups that work (other side of the pond)
www.mr2oc.com/showthre...readid=137
Other make wheel fitment and PCD
www.carlsalter.com/whe...ments.html
Tyre Pressures
UK GT 15" - 31psi front and 35psi rear
UK GT 14" - 26psi front and 32psi rear
JDM Turbo 15" - 29psi front and 33psi rear
these pressures remain the same when fitting different sized wheels/tyres, although you can play about with them to find out whats best for you.
Wheel nut torque settings
www.etyres.co.uk/vehic...toyota.htm
Wheel nut types
wheel nuts spec: 12x1.5mm
standard toyota wheels use flat ended nuts, most aftermarket wheels use conical (tapered) ended nuts. These are sometimes called 'tuner lugs'.
make sure you have the correct wheel nuts for the alloy you are fitting.
Standard
Conical (tapered)
Wheel and Tyre Bible
The Wheel and Tyre Bible
Everything you ever wanted to know about tyres and wheels Wink
also includes very good tyre / wheel calculators
Feel free to add to this, I just thought I'd put some info together to stop the same questions being asked all the time Wink
Cheers
Steve
If mk1 owners & mk3 owners could also do a "what works" post it would be very handy for people Smile
Top of the range 
JDM Toyota MR2 Turbo 96
JDM Toyota Soarer 92
Mercedes S320 CDI 2004
JDM Toyota MR2 Turbo 96
JDM Toyota Soarer 92
Mercedes S320 CDI 2004
