Looking to upsize

[beach17]

Does anybody know how big a wheel and tire package the fiero will take i am looking at a set of 18x7.5 with 215/35/18 tires and a back space of +42 if anybody knowes what size i should be lookin at as a max that would be great thanks

Chris

[aaron88]

That rim is a bit wide for the tires you want to put on.  With 7.5 in wide rims I’d go more with 225’s if you can find them.  Technically with a 7.5” wide rim you can go from 205 to 245 wide but you are better off going midstream.  To answer your question, tires:
215/40 to 45 R18
225/40 R18
235/40 R18
245/35 to 40 R18

I hope 24 isn’t your backspace, I hope that’s you offset.  But for your car 35 mm is best but anything 30 to 40 is okay.  I think even with 245’s a 42 mm offset will be okay, but it will be really close on the inside, you might have to use a really small spacer.

Aaron

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[FieroBUZZ]

I think with a 7.5" rim at 42mm you'll need coilovers to clear.  I had a 235/55/16 on a 7x16 rim (42 offset) and it just scraped enough on the stock spring to be unusable.(a 225 fit fine)

If you can get closer to a 35 mm offset you'll be better off.  I think Madcurl in Cali is running 275 on 20 in rims.