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#1
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Wheel Woes
Hi guys,
I have my RX-8 Rims and was planning to mount them. I lost the lugs that came with it. There are issues here that i want to sleep better on. I bought Hubcentric rings that are for a STi, Is it the right size? Do I need wheel spacers? what size? Does the stock Lugs Fit on the RX-8? if not what size lug am I looking for? Finally order of mounting: Wheel --- Spacer ----- Hub ring ---- Hub is this right? Thanks again guys! |
#2
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Hiya,
The SVX runs a 55mm offset and the RX8 (18") runs a 50mm. You should be ok without spacers although if you do need them get them with the correct wheel centre already machined in. The best type are the ones you bolt on to your hub then fit the wheel as normal, they are a little more expensive but less stress on the studs. I was looking for a pic I had of an SVX in Japan with the RX8's on, looked fantastic, you can also get some Prodrive center caps to replace the Mazda ones. Quote:
Think you want to try the Hub, Spacer, (Hub ring if needed) then the wheel, I find it fits easier that way with the wheel going on last Darren
__________________
11/94 SVX Alcyone, Mica Black, VL Spec 4WS, 71K Miles, 1 owner from new & was part of a private car collection in Japan. Nissan R34 Skyline Stagea 91 Lotus Elan SE Turbo 1966 MGB Roadster, Tarten Red, Wire Wheels, Leather, 23K miles from new You can tell the men from the boys from the speed of their toys. |
#3
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thanks darren,
What size should the spacers be? And a link on where to purchase will be great. Any Idea on the Lug nut size? is it the same as the Subaru STI. Thanks |
#4
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Hub centric rings
www.tires.com a.k.a. www.discounttiredirect.com(discount tire direct) sells anodized aluminum hib centric rings in all different sizes for $15 shipped. Tell them the ID of the wheel and the OD of the hub and they'll sell/send you some nice, hard (pink color) anodized rings. If you don't have access to a digital or analog set of calipers, just tell them the donor car from which the wheels come (RX8) and that you're mounting them on an SVX and they'll look up the specs for both. I have run them on all my non stock wheels on all different types of vehicles for the last decade.
Last edited by gsodonis; 04-20-2007 at 05:07 AM. |
#5
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A stupid question. What happens if you don't install hub centric rings with the wheels? A couple years back I put wheels on a car (since sold) and the tire place said the rings that came with the wheels didn't fit so they just tossed them.
Gene
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Gene and Ben 1992 SVX LS AWD 110K - Liquid Silver 1994 SVX LSi AWD 128K - White Pearl (daily driver) 1994 SVX LSi AWD 95K - Emerald Pearl (sold) 1992 SVX LS-L AWD 115K - Dark Teal 4.44 swap (sold) |
#6
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heb centric vs. bolt centric
As the name suggests, hub centric wheels use a lip machined on the end of a hub to center the wheel on the hub.
Bolt centric wheels rely on the lug nuts to center the wheel on the hub (each tapered lug nut centers each corresponding mating wheel bolt hole to the hub assembly). From an engineering perspective, the wheel studs (or bolts depending on manufacturer) do double duty in bolt centric applications. The studs must withstand the shear forces produced by the rotation of the wheel and they must also withstand the shear forces produced by vertical forces generated by the suspension as it absorbs road irregularities. In hub centric applications, the shear forces from wheel rotation are the same, but the forces generated by the suspension are transfered to the hub through the wheel/hub lip interface and not throuigh the wheel studs/bolts. Most of this is invisible to the driver under normal circumstances, but in off road and racing applications, hub centric is more durable and preferred. What happens if you install road wheels without hub centering rings? From a safety perspective, most likely nothing as the wheel/braking systems of most cars are engineered with pretty big factors of safety (they're essentially over engineered). In my experience, I once had a set of +1 size aftermarket wheels that I installed on my wife's minivan. The steering wheel shook horribly and the tire dealer tried three times to re-balance the wheels without success. When I asked about hub centering rings, I was told that the wheel manufacturer claimed that my Honda Odyssey didn't need them as it was bolt centric. I chose not to believe them and bought a set anyway. As soon as I installed the centering rings, all of the steering wheel vibration disappeared. Moral of the story, if you try and fit aftermarket or non-OEM wheels onto your vehicle and you get a steering wheel vibrations that wheel balancing won't eliminate, try a set of hub centering rings and it might just do the trick. Last edited by gsodonis; 04-23-2007 at 09:25 PM. |
#7
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Gads is back. Hope you are feeling better...
__________________
Former: 1994 Barcelona Red(x2), 1995 Brilliant Red, 1992 Liquid Silver, 1992 Ebony(x2), 1992 Pearl White (x2) Current: 2017 Ford Raptor 2017 Kawasaki KLR 1995 Guards Red Carrera 1995 Spec-ish Miata - track car 1957 CJ-5 |
#8
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TN mini meet?
The worst part about having pneumonia is when your wife tells you that being off of work doesn't mean that you can work on your cars. She threatened to beat me if I even touched either the SVX or the VW Rabbit. Now that I feel better, I spent the better part of the day stripping the drivetrain and suspension off the Rabbit; it's getting all new parts. Once its finished and running again, the garage space is reserved for the SVX for a major service - timing belts, seals, clutch, and anything I find along the way. When you're not painting houses this summer, I could use a hand at night. Call it a East TN mini meet!
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#9
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That was the most coherent and detailed explanation on hubs i have read.
Thanks and may this serve the future search button. BTW, does the seating on the type of lugs used depend on the wheel or car mounted? (ie: do i have to change the type of lugs everytime i change wheels?) I know we use a 1.25mm diameter lug but wishy washy on the type (acorn, flat ... etc..) Thanks! |
#10
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Quote:
__________________
Former: 1994 Barcelona Red(x2), 1995 Brilliant Red, 1992 Liquid Silver, 1992 Ebony(x2), 1992 Pearl White (x2) Current: 2017 Ford Raptor 2017 Kawasaki KLR 1995 Guards Red Carrera 1995 Spec-ish Miata - track car 1957 CJ-5 |
#11
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I agree!
It is rare, nowadays, to find someone who can 'splain something so technical in such a clear, unconfusing manner. Evem I understood it the 1st time.
AAA+ is the grade Cheers!
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' 92 SVX @ 185K ' 91 420SEL @ 223K! ' 88 420SEL I. @ 178K (what a buy!) ' 87 F250 @ 180K ' 93 ZX-11D @ 29K ' 93 SC400 @ 93K 2001 Valkyrie Interstate @ 6.6K (Brynhild) Y2K NightHawk 250 @ 1,500 miles ' 88 420SEL II. @ 208K '85 F150 @ 135K |
#12
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Wait......
You put rims on a... minivan? Just kidding. I am definitely coming in July. Just let me know what you want to do and what nights. You-know-who will probably want to come and watch too.
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Former: 1994 Barcelona Red(x2), 1995 Brilliant Red, 1992 Liquid Silver, 1992 Ebony(x2), 1992 Pearl White (x2) Current: 2017 Ford Raptor 2017 Kawasaki KLR 1995 Guards Red Carrera 1995 Spec-ish Miata - track car 1957 CJ-5 |
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