1986 GT with coil over rear suspension. I am considering replacing my stock 15"x7" factory lace wheels with Scion TC wheels. These wheels are the 17"x7" factory wheels that I researched as having a 45mm offset. I believe I read in one of the threads that the hub center for the Scion wheels is slightly smaller than the Fiero hub size and that they will need to be machined to a larger size. Also, I think that I read that the Scion wheels require a different lug nut than what is standard on Fieros. Can anyone copy me back with a list of the things that need to be done to mount these Scion wheels on my car? I'm trying to do this for cheap and don't want to sink a lot of bucks into this mod, but I also don't want to take on another project that requires too much work to make the Scion wheels fit.
Scions have a 54.1mm hub bore, so yeah, you'll need to take 3mm out of the wheel to fit the Fiero. Lug nuts should be the same, though I guess it depends on what wheels you have on the car. Scions use standard mag style lugs - not the same as a Fiero, but reasonably common anyway.
thesameguy - thanks for the reply. OK. So the Scion has a 54.1mm hub. What size is the Fiero hub? Also, how do I machine the Scion wheels to increase the size of the hub? Is it important to make the hub the same size as the Fiero or could it be slightly larger?
thesameguy - thanks for the reply. OK. So the Scion has a 54.1mm hub. What size is the Fiero hub? Also, how do I machine the Scion wheels to increase the size of the hub? Is it important to make the hub the same size as the Fiero or could it be slightly larger?
If I remember correctly, 57mm. You would take them to a machine shop where they can chuck them up in a lathe and bore them out. The Fiero wheels are hubcentric, so they are made to utilize the hub for centering. If you bore them out to bug, you "could" still use them but then you are going to be relying on the lugs for centering. I wouldn't recommend boring them out to big, I mean if your going to use them then do it right, ya know?
I guess another way you "could" do it if you don't want to pay a machine shop to bore them out... Maybe use a cylinder hone, a snap gauge and micrometer (or at the very least a dial/digital caliper). However, cylinder hones aren't meant to take off a lot of stock, so it would be VERY time consuming.
[This message has been edited by Khw (edited 09-23-2013).]
I've done three sets of Scion TC wheels. I did them on a milling machine, most shops don't have a lathe big enough to chuck a 17" wheel. I made a plug that i could bolt to the table to pick up the existing 54mm hole so I wouldn't have to indicate to zero every rim. Then I used a boring head and opened the bore to 57mm. You only have to open it up about 1/2" deep. I did one for a fellow forum member, I charged him $15 per wheel. I think most shops would charge a bit more, probably cost you about $100 for a set.
I had a set of Scion TC wheels machined at a shop - they charged 20.00 a wheel. You will need "Toyota" Lug nuts as these wheels utilize a "shoulder" lug nut versus the conical factory Fiero style. I went to Toyota and they were spendy!
Anyone have experience with the 2011-2013 Scion TC rims? I messed up and assumed the bolt patter was the same as previous years (since it fit the fiero) but these ones are apparently 5x115!!!! I wonder if anyone has successfully moded them to work on a fiero yet
Anyone have experience with the 2011-2013 Scion TC rims? I messed up and assumed the bolt patter was the same as previous years (since it fit the fiero) but these ones are apparently 5x115!!!! I wonder if anyone has successfully moded them to work on a fiero yet
It might be possible to have your hubs and rotors re drilled for that pattern.
Because I wanted instant gratification I ended up ordering Wheel adapters. I will probably regret it but I already had the brand new wheels and tires so I figured I would give it a try. I read on of these forums someone was running high quality adapters and was doing well. I wish they would give an update
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