We do not have any 7" 6uls here so we have not been able to test fit them; we only see 8's and 9's around here (I'm actually not sure I've ever put my hands on a set of 7" 6uls now that I think about it, and I've handled a bunch of these wheels).

 

In for results.

I'm going to test fit one of Cueball1's Kosei K1s, and negotiate a possible trade. They fit his 11.75" kit, but he's using the mini radials, which have better radial clearance.

If the K1s don't fit my larger lug mount, it'll be either TR 15x7/7.5/8, or 15x7 6ul.

I'd love to save the $120 and go with TR, but I'm afraid I'd see them on my front porch and shoot myself in the head.

$120 also saves me 6lbs total of rotational mass.

 

Everyone, I have some bad news. I need to retract the wheel fitment info I've provided. With the caliper unmounted there is room to move it back and forth ~4mm on a 15x8/15x9 +36, but once it's mounted up on the bracket there is only about .020" between the bell and the caliper, which means it will contact the wheel on track.

This is obviously incredibly embarassing for me, since I advertised that the brakes would clear 8 and 9" 6ULs without a spacer. At this point, we're going to send a set of 5mm wheel spacers to our group buy participants next week which will rectify the problem - if that plan changes I will post here. This is obviously an imperfect solution to a problem that shouldn't exist, but it's the best we can do.

I apologize for the error - we try as hard as we can to make sure that the parts we make and sell fit as intended, but this one slipped through the cracks. If anyone has any questions or concerns, please feel free to contact me directly so I can address them.

 

You know I'm good with my 20mm spacers, so you don't have to send them with my order - unless you want to. You shoulda got payment a couple days ago for all my crap (good crap that is). Prefect timing too... Road Atlanta is 3 weeks out.

 

To be fair, Emilio/V8R does state that on their 11.75" bbk's a 4mm spacer is required.

With that said, I'm curious what a 5mm spacer will do to the already tight fitment of 225's on 15x9's under NA fenders.

 

I don't anticipate it being a problem. Rolled fenders are par for the course with 9s on an NA as-is. On the black car with ~3* of camber up front, I polish the shock towers on the inside, so if anything it will help a bit. I'm just bummed that spacers are required at all.

 

Are you planning to update the kits eventually?

 

That was the very first thing we looked at. Our hats are .75 offset with a .32 face thickness. The .83 hat that Wilwood offers only has a .25 face thickness, so you only end up gaining .010, which is useless. The next offset is 1.19 or something, which parks the rotor in the spindle.

 

Seems like a custom hat would be easy enough to make, or are you not willing to risk the liability of such an vital brake component?

 

From what I've been told by those in the know, the hats are not a simple piece to make - there are very specific material and heat treat requirements and the costs are fairly high. We may look into it but it would have added at least a couple hundred bucks to the price of each kit as-is.

 

What happens to handling if I put a 5mm spacer up front and not in the rear? I ask because I'm not looking forward to pressing the rear hub out to swap long wheel-studs...but I will if that's what it takes.

 

We'll find out.

 

Do you really think 5mm will be enough to effect the integrity of the oem studs that you'd have to replace them with longer ones? I wouldn't think so, but I'm still learning this game.

 

http://www.saferacer.com/miata-cage-...productid=1312

Good enough for me.

5mm is about 1.3 mm less than their recommended max.

 

I have 5mm studs to clear my Corrado brakes on my street wheels and the threads are not strong enough.

 

In for the answer. I suspect it does not make a huge difference, other than maybe bias the FRC forward a teeny bit (push).

 

If you can tell the difference between 1cm track width difference from front to rear you are a supreme badass...I firmly believe that you will notice absolutely nothing with a 5mm spacer up front. It will affect scrub radius more than anything (which still won't be noticable)...oh, and did I mention you won't know the difference??? Not sure if I mentioned that... BTW, I'll need a considerable sum of cash for those brakes I loaned you so that I can go buy this setup.

 

Did I mention I am a supreme badass? I used to race F1 but I do not talk about it much.

 

Would you drive flat out?

 

Pin it or bin it to win it. Shake and Bake.