I'm getting ready in the next week to buy 17"x7 rims for my 88GT. I've been doing research for some time. Used the search function over and over again, and have found that some people say one thing, some people say others.. 40 all the way round, at least 45 if not 50 on the front. 45 on the rear.. etc..

Here's the question.. If you have an 88, with 17" wheels, what offset are you running front and rear? Do you have any problems with the wheels rubbing?..

I want to order them online, but I'm worried that they won't fit, or they will rub, and I will be the proud owner of rims I can't use..

Any help with be appriciated.

oh, incase you don't remember, I read much more than I post.. I'm rebuilding a wingless black 88GT, suspension is all poly, koni's, FS lowering springs.

Thanks for any advice

I have 17x7 with 42 offset on the front.
18x7.5 with 42 offset on the rear.

edit: I don't have any problems with rubbing. If you know what offset your interested in. You can ask and someone can probably tell you if they will fit or not.

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TM_Fiero

Fiero Formula Online

[This message has been edited by TM_Fiero (edited 08-14-2003).]

I run 17 X 7 Konig Imagines on my Formula.
The offset is 40. I am running Yokohama ES100's 225/45 - 17 all the way around, lowered 1.5" no problems at all.
I am going to go with 205's on the front when I need new tires and 235's on the rear.

Thanks for the info,..

I'm looking at a set of Excell wheels at www.wheelmax.com.. but they don't list the available offsets on their website. So, figured I'd get a more of an idea before I call.. below is the pic from their site.

Zoom88, those tires are the ones I'm planning on buying, www.tirerack.com has a good selection of them. I was planing on stock sizes though 205 front 215 rear..

but I don't have my mind set on anything yet, other than ordering rims to continue my project early next week

http://toy4two.home.mindspring.com/offset.html

There's a good link for ya.
I'm picky about the wheels sticking out too far from the wheel well. Just looks ugly to me. For a 7 incher up front, you want a 50mm offset to keep the outside of the wheel in the stock location. You didn't say width for the rears.

Offset is different depending on how wide the wheel is. So if you have a 7 inch wheel, with a 42mm offset, its going to be different than a 8 inch wheel with a 42mm offset.

Play around on that site. Then get your tape measure out.

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Ok..

Thanks for that tool, very handy..

Ok. so, if I want to keep the distance the wheel sticks out from the fender the same, I want to go 50 up front and 40 on the rear if I use a 17X7 rim all the way round. And need to measure to make sure I have another 25mm of clearance to the inside of the front wheel.

Since the stock GT rim on the 88 has a 41 mm offset according to the research I've done..

So, 48 to 50 on the front 40 to 42 on the rear

Sound right?

[This message has been edited by Swany (edited 08-14-2003).]

42 all around

17x7 with 48mm offset on front, 18x7.5 with 42mm offset on back.

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1988 Quad 4 Coupe 5 speed click for more pics
1986 GT 5 speed
AOL: LastMinuteBastrd AIM: SavedbyJebus

There is a little leeway, but on the front of an 88 it looks really funny to have the wheels stick out too much farther. Just compare pics of a stock 88 vs a stock earlier model. The 88 already sticks out farther (and sits higher, btw).

Stock 88 gt front: 15x6 with 37mm offset. To have the outside edge of a 7 inch rim at the same place, you would need the entire inch of extra width on the inside. This means your offset would need to grow by half an inch. That's 37mm + 12.7mm = 49.7mm. Subaru rims are the easiest to find in that width/offset combination. 48-50mm offset is the best for an 88 front at that width. Subaru center bores are 1mm smaller. Any capable machine shop could bore that out for a small fee.

Stock 88 gt rear: 15x7 with a 35mm offset (the same as the wheels of other years). Obviously, if you want 7 inch rims on the rear, it should stay as close to the stock offset as possible.

Halfway between those two choices is the popular 40mm offset. It looks fine and only someone who knew to look would notice the wheels in front slightly farther out and the wheels in back slightly farther in. It also is common with our center bore size. If you plan on rotating your wheels to different corners this is a good size. A 45 might be nice too, if you had fatter tires on the back.

I swear I've posted this info a hundred times now! A bunch of posts about wheels and tires that I made comments on:
https://www.fiero.nl/forum/Forum2/HTML/038850.html https://www.fiero.nl/forum/Forum1/HTML/027824.html https://www.fiero.nl/forum/Archives/Archive-000001/HTML/20020825-2-019187.html https://www.fiero.nl/forum/Archives/Archive-000001/HTML/20030204-2-025724.html https://www.fiero.nl/forum/Archives/Archive-000001/HTML/20020319-2-015604.html https://www.fiero.nl/forum/Archives/Archive-000002/HTML/20020319-1-012620.html https://www.fiero.nl/forum/Archives/Archive-000002/HTML/20020319-1-011969.html

The last three have pics for sure, not too sure on the others. There are still lots more threads on 88 wheels in the search engine if you get to looking yourself.

Bryce
88 GT

quote Originally posted by Standard: 17x7 with 48mm offset on front, 18x7.5 with 42mm offset on back.

I'm running the same set-up as Standard! His web site really shows what the 17x7 (48mm offset) and 18x7.5 (42mm offset) will look like. To me anything in this range will work but getting it just right is worth the effort.

I am running 17 by 7 ,40 off/set all around.
with 225 in front 235 in back. no rub no
problem.
HappyFi ero

[This message has been edited by HappyFiero (edited 08-15-2003).]

Thanks again for the info..

You're Right Nascho.. Like I said.. been through the search many times.. read on the forum practically everyday since I bought my first Fiero back in May of 2001..

but thats just it.. so many posts.. so many people saying different things. If it was my old 86.. no questions..

but ya know how it is .. measure twice, cut once..

Maybe starting my own thread was enough to really define it in my head.. before I shell out the cash..

I'm hoping when I call wheelmax I can get the wheels I posted above in the right offsets. if I have to have the centerbore machined, thats not too bad..

but anyway,.. thx again for everyone's help.. hopefully sooner or later.. I'll have the before and after pics of my suspension rebuild.. I've had a box of poly, and a complete set of Koni's sitting on the floor of my apt for 2 months..

[This message has been edited by Swany (edited 08-15-2003).]

I am running TSW's that are 45MM front and 35MM rear. Fronts don't appear to stick out, and the rears remain about in the stock location, although without the indented lip on the factory wheels they appear to have been pushed out some. Not past the fender of course. Overall I think it looks really good, although I still would have liked a little more front offset! Some pics:

I've got 17x7 Konig Absolutes on mine. 40mm all the way around.
215/45s on the front. 235/45s on the rear.
One thing I noticed is that dropping the front of the car by around 1.5" (one coil ) gives the illusion of tucking the front wheel in, just a bit.


[img]

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Raydar

88 3.4 coupe. 17s, cut springs 'n all.

[This message has been edited by Raydar (edited 08-15-2003).]

Hey Swany, long time no see. Do you hear from Nathan very often? I have 17x7, 35 offset all around on my 87 convertible, I don't know if I had it at any meeting you were at or not. There are some pictures on the web site (www.azfieros.com). Hope to see you soon at one of the club events.

Rolland

Rolland, sure do.. he's my roommate..

The Black 88 GT I have, used to be his . :-)

been meaning to get back out to another club event.. but the Car isn't on the road ATM picking up some more parts..

Next time you see it.. should be looking a bit different..

after I get the suspension finished.. next will be a paint job.. this phoenix sun has about finished my paint

What ever happened to the Red GT you had? That car looked like it had lots of potential. Glad to know Nathan's GT survives. I was sorry to hear him say he had to sell. Watch the club web site and come on down when you can. We are taking August off due to the heat but we will be back in business in September.

quote Originally posted by 87convert: Hey Swany, long time no see. Do you hear from Nathan very often? I have 17x7, 35 offset all around on my 87 convertible, I don't know if I had it at any meeting you were at or not. There are some pictures on the web site (www.azfieros.com). Hope to see you soon at one of the club events. Rolland

Hey Rolland, what size tires do you have on those rims? I'm looking at 17s as well.

I finally fixed the hesitation. One of the spark wires burned through next to the WCF headers. Had to get a right angle plug wire to fix the problem. Muffler is on and cold air intake is painted waiting 5 days for curing before installation. I'll be ready for Sept. get together.

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www.fieroexcitement.com
Rate me if I've been helpful! :)

I am running Kuhmo Ectsa Supra 215/45-17 on the back and 205/40/17 on the front. They turn fairly nice but the ride is very harsh due to the short sidewalls. The backs are nearly gone at just about 11000 miles and I am going to go with something larger when I replace them. Thinking 245/45 on the back and 225/40 on the front. That should fix the harshness problem.