Wilwood brake caliper clearance issue.

Suspension, including wheel, tire and brake.
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eastbaysolo_73
Posts: 277
Joined: 18 May 2014 09:28
Location: Northern California

Wilwood brake caliper clearance issue.

Post by eastbaysolo_73 » 03 Aug 2018 14:35

Sup fellas I have 280zx struts with Wilwood brake caliper #120-9693 and what I was told by the previous owner a stock z31 rotor.
The issue Ive been having since I purchased the car with this caliper set up is any 15" JDM wheel I try to fit on the car the wheels face bolts make
contact with the caliper. Is there a stream line caliper that Wilwood makes that will remedy this issue? Just got a set of wheels for my car and I'm having the same issue as before. The only thing thats ever fit is Rotas due to no face bolts. Im at the point now that I want to replace this caliper set up and move forward with something that will work. I love these wheels I have and don't want to change them or go back to Rotas. Any info will be greatly appreciated. Thanks in advance. Here's a photo of the new wheel mocked up for attention.

ImageAME WHEEL by v p, on Flickr
Nor Cal Meng !

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bertvorgon
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Re: Wilwood brake caliper clearance issue.

Post by bertvorgon » 04 Aug 2018 07:42

That Wilwood DynaLight is about it for the smallest, to deal with that rotor size.

By any stretch (pun intended) could you put a small aluminum wheel spacer in and still have wheel to fender clearance? I have basically the same setup (BrakeMan calipers which are the same as the Wilwoods) and space my wheels out, but, I do have flares. Depending in the height and width of your tire, you might be able to get away with a 1/8" spacer or so. As the wheel travels up, depending on camber setting, you might be able to get away with it. A good machine shop could spin you up 2 spacers at your required thickness no problem.

Here is a picture to give you an idea, you can see that the spacer just comes back a hair so that the hub of the wheel misses the caliper body, which of course would push any bolt heads out too at the top of the caliper.
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eastbaysolo_73
Posts: 277
Joined: 18 May 2014 09:28
Location: Northern California

Re: Wilwood brake caliper clearance issue.

Post by eastbaysolo_73 » 04 Aug 2018 23:36

bertvorgon wrote:
04 Aug 2018 07:42
That Wilwood DynaLight is about it for the smallest, to deal with that rotor size.

By any stretch (pun intended) could you put a small aluminum wheel spacer in and still have wheel to fender clearance? I have basically the same setup (BrakeMan calipers which are the same as the Wilwoods) and space my wheels out, but, I do have flares. Depending in the height and width of your tire, you might be able to get away with a 1/8" spacer or so. As the wheel travels up, depending on camber setting, you might be able to get away with it. A good machine shop could spin you up 2 spacers at your required thickness no problem.

Here is a picture to give you an idea, you can see that the spacer just comes back a hair so that the hub of the wheel misses the caliper body, which of course would push any bolt heads out too at the top of the caliper.
Thanks for the reply bud. Yes I could run a small spacer if all else fails. But I would have to check the fender and wheel clearance since I'm not flared to be sure. I did notice that face bolts on are excessively long. So that could possibly be the issue right there. Im going to back the face bolts out in the caliper area and see if the actual locknut to the face bolts clears the caliper. If it clears then all I have to do is replace all the bolts with a shorter one that doesn't stick out the locknut. Why the wheel builder used such longs bolts is beyond me but no biggie. I also spoke with Don at DP racing and he offered a few different solution that might work. Thanks again for the photo and chiming in.
Nor Cal Meng !

eastbaysolo_73
Posts: 277
Joined: 18 May 2014 09:28
Location: Northern California

Re: Wilwood brake caliper clearance issue.

Post by eastbaysolo_73 » 06 Aug 2018 13:37

So here's a video I made to the wheel maker showing him that the wheel bolts are to long. But the good thing is I have to 3 ways to fix this problem. First is shorter bolts for the wheel faces. The cheapest rout would be a custom wheel spacer by DP racing. Or I can get a new caliper bracket and new rotor and hat and that will move the caliper back 1/8" which is more than enough. Upside is I get to keep the caliper.

ImageWheel issue by v p, on Flickr
Nor Cal Meng !

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