Simple spacer question

[Bumnah]

I'm running a set of z32 NA rims on my s13. There are clearance issues in the front. Right now I'm running 215/45/16 Azenis tires on the front. I've got some POS Kumhos on the back.

I'm looking to swapping all 4 tires over 225/50/16 Azenis. The game plan was to run a 10 mm spacer in the front. Rears clear no problemo.

Questions:

Should I look at 15 mm spacer since I'm widening the tires 10mm? There is a few mm worth of clearance right now.

Should I be concerned about running a slightly wider front track than the rear? Should I get spacer in the rear too?

Right now the game plan is to purchase some slip on 10mm hubcentric spacers in the front and new tires. Badabing.

[Matt93SE]

I'm running 10mm spacers on my S14 with 225/50/16 and Z32 wheels.. Don't know how much difference there is between S13 and S14, but there's just enough room on mine.

Since your tires are 10mm wider, that's only 5mm on each side.

Just for grins, you might start stacking washers on your studs with your current setup until the wheel fits. don't drive on it that way, but you can use the washers to give you a good idea of how much spacer you'll need.

Be sure to get longer studs too if you go over about 5mm of spacer.

[Bumnah]

I made sure to install extended wheel studs for just a reason. Extended Nismo studs front and rear.

[racepar1]

Just for grins, you might start stacking washers on your studs with your current setup until the wheel fits. don't drive on it that way, but you can use the washers to give you a good idea of how much spacer you'll need.

It would be wise to buy the tires, mount them on the rims, then do this^^^
That way you know for sure what size spacers you need. If you absolutely have to have the car driveable just mount the new tires on two of the rims and after you figure out what spacers you need just run those in the back with whatever in the front till the spacers arrive.