Quick question. Will they fit? I figured since its relatively close to the same year, and both Pontiac, it may have a good chance. I saw them at work the other day, and fell in love with them. Has anyone done this, or have a way to find the offsets on them?
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12:05 PM
PFF
System Bot
IFLYR22 Member
Posts: 1775 From: Tucson, AZ. Registered: May 2007
There are not a lot of choices for nice looking factory rims that are larger than 15" for the Fiero bolt pattern. Some Toyota, Scion, VW and Subaru wheels will fit although the offsets are not exactly the same. I ended up going with rims from a scion TC. They are 17" x 7" high quality Japanese wheels, not like the aftermarket 2 bolt pattern junk made in China. The wheels list for over $400 each at the Scion dealer but you can score a set pretty cheaply on eBay or Craigslist. It seems that the Scion guys prefer the cheap wheels for some reason. I picked up a set from eBay for $209.50 including shipping for all four. The guy even threw in 20 lug nuts. The threads are the same as the Fiero but they are not cone taper type lugs. Because of this, you have to locate the wheel on the center hubs. The one issue with the wheels is the bore is slightly smaller, I had to bore out the first 3/8 about 2 mm bigger. I can't remember the exact size offhand but if you search for it here it's available. The car looks so much better, I'm running 215/50/17 on the front and 235/50/17 on the rear. It's an 84 so I had to go with coilovers in the rear but I did try them on my son's 88 Formula and they fit with the stock suspension. The offset is 45mm and because they are an inch wider they stick out a hair more than the stock wheels but not too much to be noticeable. I also sanded off the Scion logo on the center caps and painted them to match the wheel color.
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01:01 PM
grkboy707 Member
Posts: 3019 From: Kingsville, MD Registered: May 2009
The Scion definitely fits but as I stated above the center bore needs to be bored open and they will not fit 84-87 rears with standard struts, the spring diameter is too big. you need to use coilovers.
Not sure about the early Grand Prix, but the generation starting in 1997 and newer had 5X115 bolt pattern and will not fit (I had a 1998 GP and know for a fact it won't fit).
The Fiero wheel bolt pattern is 5X100. Here is a list I found from an achived post of cars with this same bolt pattern. Whether the offset is correct or if the list is accurate, I have no idea. But, it should help if you are looking for some ideas.
Watch that center bore when using OE wheels from other cars. Fieros have a 57.1mm CB. Most other cars with a 5x100 bolt pattern use a smaller bore. This means the wheels will need to be machined to fit the fiero hub. Anything that uses are larger then fiero CB can have centering rings installed. Such as most aftermarket wheels.
~96 subaru's have a 57mm CB. That is very close and if they do not bolt right on they can be opened up with a flapper wheel on a die grinder quite easily. This is how I modified a 16" subaru spare to clear my12" brake upgrade. Do it once, Do it right!! Stay safe.
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04:28 PM
Hulki U. My-BFF Member
Posts: 5949 From: Back home in East Berlin, PA Registered: Apr 2008
Anything that will fit a new VW beetle will fit a Fiero. The bolt pattern and (I think) the centerbore are perfect. Just as important, so is the offset.
If you have an 88, the Subaru Impreza has a more suitable offset for the fronts. As mentioned, if you don't get a "one-size-fits-all" with a hubcentric reducer ring, be careful of the center bore. I always understood that Subies were 56.1, vs the Fiero's 57.1. Stil not a huge deal. The real trick is going to be finding a wheel you like that comes in sizes that fit both the Subie and the VW.
------------------ Raydar 88 4.9 Formula IMSA Fasback..........................88 3.4 coupe - going...going... Read Nealz Nuze!Praise the Lowered!
