Miata Turbo Forum - Boost cars, acquire cats.

- Wheels and Tires (https://www.miataturbo.net/wheels-tires-78/)

- - 15X10 wheel options discuss (https://www.miataturbo.net/wheels-tires-78/15x10-wheel-options-discuss-51051/)

Quote:

Originally Posted by bbundy (Post 668344)

When I took the spring off and did articulation studies it looked like an ET of 15 - 20 was the narrow range that would work right on AN NA with that wide of tire to me. Anything else would compromise wheel cut or bump travel without doing allot more hacking than just the fender lip. What that works out too in backspace measurement varies by wheel manufacturer. The inside lip width seems to vary from ~1/4" to 5/8" depending on manufacturer then there is some manufacturers like Kodiak that measure backspace from the inside of the lip furthering the confusion. If they would all use ET it would be allot easier to figure out where the tire ends up relative to the hub.

Bob

Well, im gonna be doing a fair amount of hacking on my car to install the Tuckin99 copies. im just trying to figure out what i can get away with, but may not run more than a 9" wide wheel all the way around due to the fact that the widest street tire for 15s is a 225.

i do remember reading somwhere on here about sombody making a 245 tire for 15s (im still searching for that)

Quote:

Originally Posted by zach90 (Post 668108)

theres always these wheels, although there a little pricey.

http://i426.photobucket.com/albums/p...15944100-1.jpg

Those look like they have the same issue with large brakes as the Weld wheels. The center is actually made for a 13" wheel and the lip/barrel is cone shaped to stretch it out to a 15" wheel.

Quote:

Originally Posted by sixace (Post 668372)

LOL, first i've seen this post. I am the current owner of these wheels and was driving when the failure happened (interesting ride, glad it was ax and not track).

The age of the wheels was unknown, however the maintenance was not. When I purchased them used, they were 13x8. I packed them up and shipped them to Keiser requesting that they refurbish them and make them 13x9 in the process.

The wheels were put through some ax and NASA time trial events (tws,msr-c, hallett) and rode their fair share of curbs.

Keiser said they were older style magnesium centers and they have since changed them. Obviously there was no warranty, however they were very accomodating on options and prices for replacemet centers. They say their alum centers are stronger, but not as light (these are retarded light).

Overall, I'd not run the magnesium centers on roadcourses unless you are well under 2000 lbs, like some open wheel or radical type car.

For ax, they are badass light and fun.

I spoke to the guys at Small Fortune Racing about those wheels. They are not just an "old" version, they are one of the oldest versions and had almost no engineering done to the shape. They've been revised at least three times, removing stress risers on the back (where your wheels broke), thickening the front ribs and introducing then removing a "K" inscribed on each spoke. The newest version actually has some engineering behind it and should be significantly stronger.

edit. I should have done some searching before i posted, didnt take too long to find this, width is unkown but i doubt that even matters. You can see the gap between the rotors to give u an idea if u think theyd fit or not.
http://lh6.ggpht.com/_ISJa6QOsPQw/S4...0/100_0675.JPG

Quote:

Originally Posted by 1slowna (Post 669430)

That picture is a spinwerks 13" wheel. The guy posted it on miata.net.

Bob

What about Weld Draglites? They are made in a 4 bolt pattern. Huge number of sizes and offsets. Mid 200's price wise. 15x10's look to weigh around 14.5lbs according to a quick search. Don't know how the drag wheel holds up to road course work but they are forged. Would be worth giving Weld a call and looking for recommendations.

http://weldracing.com/street-perform...rge/dfs-1.html

http://weldracing.com/media/catalog/...cksquare_1.jpg

My 15x10 SPin Werks showed up today. ~15.5 pounds. Pretty, well made but not very light. $1005.00 shipped to my door, I'm pleased for the money.

Quote:

Originally Posted by engled (Post 672032)

My 15x10 SPin Werks showed up today. ~15.5 pounds. Pretty, well made but not very light. $1005.00 shipped to my door, I'm pleased for the money.

That weight for 10" wide is pretty sweet IMO

Got pics?

Quote:

Originally Posted by engled (Post 672032)

My 15x10 SPin Werks showed up today. ~15.5 pounds. Pretty, well made but not very light. $1005.00 shipped to my door, I'm pleased for the money.

15.5lbs for a big 10"? Sounds reasonably light for that size to me.

me too ^^^^ i'd be happy with that.

and cueball, no way those welds will hold up to road course use.

Quote:

Originally Posted by engled (Post 672344)

http://lh5.ggpht.com/_-G4gMz5adZc/TR...2/IMGP0047.JPG

What brakes are you using?

looks like there will be issues with my 11.75" big brakes with where the drop section is.

Bob

Quote:

Originally Posted by bbundy (Post 672362)

What brakes are you using?

looks like there will be issues with my 11.75" big brakes with where the drop section is.

Bob

1.6 brakes.

Is it even possible to lock one of those 275s up with 1.6 brakes?

Quote:

Originally Posted by Gotpsi? (Post 672374)

Is it even possible to lock one of those 275s up with 1.6 brakes?

brakes are WAY over rated...

Maybe for auto cross, but the last time I used 1.6 brakes at the track I went through a brand new set of hawks in 3 laps at thunder hill.

Quote:

Originally Posted by spoolin2bars (Post 672328)

and cueball, no way those welds will hold up to road course use.

Figured it'd be worth asking them. I doubt it too but they are forged aluminum. I'll send them an email and see if they have any products they'd say are appropriate for road course duty.

So the Spun Werks aren't holding up to track duty? I was looking at them last night on MiataRoadster and wanted some more info on them.

Quote:

Originally Posted by engled (Post 672391)

brakes are WAY over rated...

HA HA HA,,,,, good one!