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Anyone ever seen or used diamondracingwheels?

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  • thekid
    replied
    Re: Anyone ever seen or used diamondracingwheels?

    Originally posted by Cheers!
    who sells blank wheels?
    I would gather any competant machine shop could bore and drill out any wheel
    I know it's possible to order Kosei K1's as blanks.

    Leave a comment:


  • Cheers!
    replied
    Re: Anyone ever seen or used diamondracingwheels?

    Originally posted by Greg F
    There's a place at Keele and Hwy 7 that can drill the bore and lug holes in blank rims.
    who sells blank wheels?
    I would gather any competant machine shop could bore and drill out any wheel

    Leave a comment:


  • Greg F
    replied
    Re: Anyone ever seen or used diamondracingwheels?

    There's a place at Keele and Hwy 7 that can drill the bore and lug holes in blank rims.

    Leave a comment:


  • sjd
    replied
    Re: Anyone ever seen or used diamondracingwheels?

    I know of quite few 1st gen RX-7 owners running diamonds with no issues. I plan to run them as well due to the RX-7's weird 4x110 bolt pattern.

    Leave a comment:


  • Gerry
    replied
    Re: Anyone ever seen or used diamondracingwheels?

    One minor correction on the FD stock rims. The change to the heavier rims happened during the 1993 production. Mine is a 1993 built in Feb, and it came with the stronger rims.
    Mazda started building "1993" RX-7s in early 1992, and there were substantial changes to resolve early problems during 1992. I think the rim change occurred then as well.
    Cheers, Gerry

    Leave a comment:


  • Cheers!
    replied
    Re: Anyone ever seen or used diamondracingwheels?

    Originally posted by jduffett
    Have you considered FD wheels? They are 16x8s, obviously same pattern, but you'd probably know better than me whether there is a difference in hub bore between FC & FD. I seem to recall the FC is smaller dia. The early ones (13.x lb) are known for cracking, but I expect the later ones (15-16 lb IIRC) hold up a little better.
    You need to run a 1" spacer or some sort of an adapter. FD (3rd gen wheels) are 16x8 +50 offset. 16 lbs heavy, cast by enkei. Two versions exist, the 93 versions and the 94 versions. 92-93 versions were prone to cracking, so they changed the casting in 94 with ribs where it was prone to cracking.

    I need a 28 offset wheel. Meaning I would need to make a 22 mm spacer. It seems sketchy to me having to run such a big spacer or wheel adapter. Hubcentric wheels are of no concern to me so the hub bore doens't matter at all.

    Leave a comment:


  • jduffett
    replied
    Re: Anyone ever seen or used diamondracingwheels?

    Originally posted by Cheers!
    hrm... the beauty of the diamond racing wheels is I can actually get 16x8" wheel and not have to pay for exotic japense forged aluminum light weight wheels that are pre order only.
    Have you considered FD wheels? They are 16x8s, obviously same pattern, but you'd probably know better than me whether there is a difference in hub bore between FC & FD. I seem to recall the FC is smaller dia. The early ones (13.x lb) are known for cracking, but I expect the later ones (15-16 lb IIRC) hold up a little better.

    Leave a comment:


  • Ron
    replied
    Re: Anyone ever seen or used diamondracingwheels?

    I have Kodiak wheels and they have been great and they don't leak. Hoosier slicks leak. Yes they are pretty expensive, but if you call Darryle he will perhaps cut you a deal. He did for me, plus there is no brokerage, no PST and you are supporting a Canadian company. Kodiak had some problems with shells bending, but that was before they started spinning their own shells in house. They do not bend when mounting and unmounting. I have bought Aero steel wheels for the dwarf car which are stronger than Diammonds and they bend when mounting. However with the steel wheel you can hammer them out.

    I would buy Kodiaks again, if I could afford it.

    I have some Work 3 piece wheels I might be interested in selling. They are 16x8 and 16x7 5x114.3 with RA1s on them. They are not quite as light as the Kodiaks but about half the price. The good thing about 3 piece wheels is you can build them to any size and if you bend a rim, just replace the shell.

    shoot me an email if you are interested:
    ron at firstclass dot com

    Leave a comment:


  • kmorris
    replied
    Re: Anyone ever seen or used diamondracingwheels?

    Diamond wheels are typical of circle track type steel racing wheels. I haven't used them but I use Aero wheels which are very similar. The spun rim steel race wheels are only slightly heavier than a good aluminum race wheel, but they are extremely cheap - around C$100 for the ones I use (13 x 8 and 13 x 10). They are cheap because they're cheap to make.

    There is no problem changing tires. As far as durability, they are a little more bendable than aluminum, but they are less likely to fatigue or crack.

    Balance can be a problem with them being lug-centric, although I have not seen this with the Aeros. You do need to use the right lug nuts, since the seats are cut at 45 degrees instead of 60 like a street wheel.

    If you want to find out more, talk to a circle-track-savvy shop like CSC Racing (who carry Diamond) or Grisdale, who carry several brands.

    Leave a comment:


  • Cheers!
    replied
    Re: Anyone ever seen or used diamondracingwheels?

    Originally posted by 13inches
    For 6x the price, they better be!

    I'm pretty sure CSC is a distributor for Diamond wheels. They're cheap, but thats about all they have going for them. I wouldn't want to be mounting/flipping tires on them very often.
    I'm not paying 470 USD for one wheel. Plus they aren't that good. Most FSAE teams found that the kodiak, kaiser, and Kruzer wheels leak air too easily and bend whenever the tire changes change teh tires.

    Leave a comment:


  • 13inches
    replied
    Re: Anyone ever seen or used diamondracingwheels?

    Originally posted by RRRex
    There's also a Canadian company in Vancouver that I found call Kodiak. I don't know anyone who runs them but do think they look sexier than the ones posted.

    http://www.kodiakracingwheels.com/
    For 6x the price, they better be!

    I'm pretty sure CSC is a distributor for Diamond wheels. They're cheap, but thats about all they have going for them. I wouldn't want to be mounting/flipping tires on them very often.

    Leave a comment:


  • RRRex
    replied
    Re: Anyone ever seen or used diamondracingwheels?

    There's also a Canadian company in Vancouver that I found call Kodiak. I don't know anyone who runs them but do think they look sexier than the ones posted.

    http://www.kodiakracingwheels.com/

    Leave a comment:


  • Cheers!
    replied
    Re: Anyone ever seen or used diamondracingwheels?

    What's the trade off between unsprung weight and maximizing tire contact patch? 16x8 diamondracing wheels (steels) are 21 lbs. Stock rx7 wheels 16x7 are 16 lbs. Is it more advantageous to go ultra light weight wheel with a 225 tire or is it better to go with a 245 tire on a heavier wheel set?

    It's a gain of 20mm x 4 which is 80mm bigger of contact patch, Which is quite a bit. But then you are adding 5 lbs to each wheel or 40 lbs of unsprung weight.

    -Jason

    Leave a comment:


  • Cheers!
    replied
    Re: Anyone ever seen or used diamondracingwheels?

    Originally posted by gatherer
    yeah American

    Good nafta applies

    Leave a comment:


  • gatherer
    replied
    Re: Anyone ever seen or used diamondracingwheels?

    Originally posted by thgear
    they are an american company correct?

    yeah American

    Leave a comment:

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