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E36 /7 Z3 (1996-2002)
E36/7 Z3 roadster and coupe talk with our gurus here.

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  #1  
Old 10-03-2008, 07:02 PM
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Z3: wheel fitment question

Hi all, it's been a while since I posted in this forum.

I just picked up a '97 Z3 2.8 after being without a Z3 for a little over 6 years. I also happen to have a set of 8x17 and 8.5x17 wheels (original sport package setup from my E90 325i) that are sitting in the storage shed gathering dust. Does anyone know if those wheels will fit on the Z3?

If no one knows I'll probably test fit them to see if they work, but I thought I'd check here first.
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  #2  
Old 10-03-2008, 07:18 PM
daven daven is offline
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Need to know the offset to be sure. Should be molded in or otherwise marked on the wheels
IIRC stock offset for Z3's is 41
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  #3  
Old 10-03-2008, 07:25 PM
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I'll have to check in the morning. No power in the shed...
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  #4  
Old 10-04-2008, 01:31 AM
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greyish greyish is offline
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daven is correct. Stock 17"s on a non-M Z3 have an offset of 41mm on all four wheels.

Assuming that the wheels from your E90 325i sport package are Style 161


Z3 fronts: 7.5" wide; et 41
325i fronts: 8.0" wide; et 34
Difference: Inner Clearance = +1mm; Outer edge = +13mm (roughly 1/2 inch).

Z3 rears: 8.5"; et 41
325i rears: 8.5"; et 37
Difference: Inner Clearance = +4mm: Outer edge = +4mm (roughly 1/6 inch).

[ "+" in this case means shifting away from the centerline of the car; e.g. engine/driveshaft. ]

This is all based on the assumptions that these are the 325i wheels that you have and that the ones currently on your Z3 are 17x7.5"f and 17x8.5"r, which are very common.


Also, here is a calculator for future use.

..
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  #5  
Old 10-04-2008, 07:16 AM
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Quote:
Originally Posted by greyish View Post
daven is correct. Stock 17"s on a non-M Z3 have an offset of 41mm on all four wheels.

Assuming that the wheels from your E90 325i sport package are Style 161

That's them. The wheels currently on my Z3 are 7x16 5 spokes with 225/50 16 tires.

The sizes seem close enough for me to at least bolt them up to see how they look. I'll need new tires, partly because the rears I've got are worn out and partly because they're 255/40 17.

Thanks for the link to the calculator.
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  #6  
Old 10-10-2008, 03:47 PM
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Here's a shot of the car with the wheels test fitted to the passenger side. Please excuse the quality of the picture; I used a disposable camera.

The fronts completely fill the wheel wells, but do not scrape anywhere. The rears fit without any problems, even though the tire size is 255/40R 17.

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  #7  
Old 11-14-2012, 01:59 PM
Hornedfrog1969 Hornedfrog1969 is offline
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I know it is a really old thread, but how did these work out for you?
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  #8  
Old 11-14-2012, 03:11 PM
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Wow, back from the dead...

They worked out fine. I drove the car with the E90 setup for a month, then bought a new set of BF Goodrich g-Force Sport A/S tires. At that time I changed the back tires to 245/40 size which is correct for a Z3.

Drove it for 3 years/15k miles before I sold it to someone else. I never had any problems with the setup and they seemed to wear quite well. However, since I sold the car over a year ago I really can't say what it's like now.
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  #9  
Old 11-15-2012, 06:53 AM
CTHuskyinMA CTHuskyinMA is offline
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That set up actually looks pretty nice. I've been looking for something different, but OEM, to put on my 98 1.9
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  #10  
Old 11-15-2012, 07:14 AM
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I don't think that rear wheel and tire setup is going to fit under the 1.9's narrower rear fenders. Here are some more pictures to help you visualize:



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  #11  
Old 11-15-2012, 12:12 PM
Hornedfrog1969 Hornedfrog1969 is offline
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Are these with the 245s or the 255s in the back? Did you need to lower the car to make it look right? The pictures look pretty good in my opinion.

Well, well, look what I found...

http://forums.bimmerforums.com/forum...&highlight=161

I think they look pretty damn good.
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Last edited by Hornedfrog1969; 11-15-2012 at 01:19 PM.
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  #12  
Old 11-15-2012, 01:22 PM
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Thanks! In the inside pictures, the rear tires are BF Goodrich g-Force Sport A/S, size 245/40ZR 17. The suspension is all original (at the time, 14 years and 101k miles). It may have settled/sagged slightly, but it had not been lowered.
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  #13  
Old 11-24-2012, 09:17 PM
Hornedfrog1969 Hornedfrog1969 is offline
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Kevin, I picked up the style 161 wheels and tires and I think they look amazing on the Z. Why did you go from the 255s to the 245s? My 255s are almost new so I don't really want to change them unless there is something I'm not aware of. Pictures coming soon.
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  #14  
Old 11-25-2012, 02:19 PM
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It was a last minute decision. My 255s were worn out (like that when I put them on) and I needed to get new tires. The tire guy asked me if I wanted to stick with the 255s or switch to the 245s, which were listed as the correct size for a Z3. Since I was buying tires anyway, I decided to go with the correct size.

If my 255s had not been worn out, I would not have bothered replacing them.
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Old 12-08-2012, 11:19 PM
Hornedfrog1969 Hornedfrog1969 is offline
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style 161 wheels

Here they are! I think they look great. They really fill out the fender wells quite nicely.





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Last edited by Hornedfrog1969; 12-08-2012 at 11:40 PM.
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  #16  
Old 12-09-2012, 06:38 AM
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Need to lower it a bit. Looks like a roller skate.
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  #17  
Old 12-09-2012, 07:10 AM
Hornedfrog1969 Hornedfrog1969 is offline
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Yeah, I agree but it looks better than it did. I have a vanos and shift pin repair in line ahead of the suspension. Not sure I want to give up the little bit of comfort in the ride.
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  #18  
Old 12-09-2012, 07:16 AM
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Looks great!
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  #19  
Old 12-09-2012, 08:24 AM
dougmcintyre dougmcintyre is online now
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How bad are your vano seals and shift pins? Unless they are really bad, I'd go suspension, vanos, and then shift pins.

I did the vano seals at 122k and TC Kline SA coilovers at 96k. SA's are a transformational change. Both ride and handling are greatly improved. By far the biggest bang for mod I've done.

The vanos seals were a solid improvement, well worth the money, but not a transformational change.

Fortunately, my shift pins are tolerable. Just need to shift slowly and carefully until the transmission oil is warmed up.
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Old 12-11-2012, 04:00 AM
aba4430 aba4430 is offline
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Thumbs up

Quote:
Originally Posted by Hornedfrog1969 View Post
Yeah, I agree but it looks better than it did. I have a vanos and shift pin repair in line ahead of the suspension. Not sure I want to give up the little bit of comfort in the ride.
Wheels look good. Separately, what brand nose mask is on the car? Looking to get one just for an occasional long distance drive.
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  #21  
Old 12-11-2012, 09:02 AM
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I have a Colgan on mine.
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  #22  
Old 12-11-2012, 11:32 AM
Hornedfrog1969 Hornedfrog1969 is offline
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Doug,

Well, I have more time than money right now and I figure the vanos and shift pin repairs are pretty cheap compared to shocks, springs, mounts and any other parts that need to be replaced when you lower a car.

Aba,
I believe its the same brand as the one pictured by amancuso. It doesn't have the cut-out for the emblem like I have seen on others.
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Old 12-12-2012, 01:57 AM
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OMG, those things are UGLY.

If you are that worried, get clear bra installed.
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  #24  
Old 12-12-2012, 07:40 AM
Hornedfrog1969 Hornedfrog1969 is offline
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Everyone is entitled to have an opinion, and in my opinion we are in the midst of jackasses... Wait wasn't this thread about wheel fitment?
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  #25  
Old 12-12-2012, 08:01 AM
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Quote:
Originally Posted by Hornedfrog1969 View Post
Everyone is entitled to have an opinion, and in my opinion we are in the midst of jackasses... Wait wasn't this thread about wheel fitment?
LOL yeah. I basically use mine when I'm on long interstate highway trips.
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