So I have a hair brained idea, but I suddenly realized that I need to not put anyone or myself in danger so I need the hives thoughts.
I purchased a set of Wide 5 wheels for the Challenge car. The Cruze does not have a 15" wheel option available that will accommodate the 245 or 275 A7 that I intend to run. The build will require the shorter diameter wheel and OD tire to get the revs where they need to bee because ridiculously large turbo.
(For this thought experiment I will be using the W5 designation for the term Wide 5 or 5x10.25 bolt circle)
(O1) My INITIAL thought was trimming a set of OE steel wheels to weld to the new 15x8 wheels. I'm leaning away from the "This is a great idea" to the "stop this madness" realm. I actually think that my idea for this will work as the Aero 78s have a circular mount flange that was going to be one weld contact area and the second being where the OE wheel would be contacting the inner barrel. Yes the wheels would be heavy but I think that they could work. It's hard making that decision and telling the course workers, drivers and bystanders to trust my opinion.
(O2) Build a set of alloy 5x105 to W5 adapters with the necessary offset (13.5mm) to clear the brakes in the outboard plane. I have access to lathes, mills and scrap plate alloy.
(O3) Buy a set of 5x105 to 5x4.5 adapters and a set of 5x4.5 to W5 And simply bolt them together.
Hive, let me hear you.
Of the three I'd go with buy a set of 5x105 wheels that suit your purposes but if you are going to make me choose from limited choices I'd take O2.
In reply to Stampie :
The one company that sells a real 5x105 15x8 that has the spec I need to clear the caliper wants $400 each for the wheel parts and custom shop service for the bolt circle costing $250, for $2600 total. I asked and they would love to take an order immediately. Delivery would be 6 months out.
Other choices and ideas are welcome, and lord knows I do not know every wheel source.
I initially looked into using Verano hubs (5x115mm from a shared chassis mate) or redrilling the Cruze hubs. Spline on the CV shaft of the Verano hub is larger (30 vs 33 spline). The hubs themselves on the 5x105 are not capable of being drilled, although I could plug and weld them and drill a larger diameter in the same pad area as the 5x105 stud.im concerned more about strength on that modification.
In reply to QuasiMofo (John Brown) :
Hey Numbnuts (that's a term of endearment).....I thought you were going to use the 16" RE71RS Bridgestones I've got? Or , did you forget? Or, change your mind?
Option 1 won't work....BTDT....the inner diameter of the rims is smaller than standard 15" steel wheel and bigger than 14s.
Option 2 has been done before, but I believe with flat plate (IIRC it was the Vorshlag E30). If you add a spacer behind to create offset it should work with long studs.
Option 3 would work, but good luck finding four wheels the same offset. Those circle track guys will sell wheels cheap, but they use different offsets at every corner. They're shocks are the same way,too. Again BTDT.
Edit: I found a picture of the aluminum plated W5 wheels on the Condor Speed Shop E30...not the Vorshlag one.
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My concern with O2 is strength under side load. I'm assuming you would put wheel studs through the aluminum and no just thread the aluminum adapter for bolts.
Why not just band a set of steel wheels that fit the car?
I'm pretty sure you can get aveo or sonic wheels in 15 x 6 that should bolt up. 2 inch band. Boom done.
Wait, I just looked at what a wide 5 to 5x 4.5 adapter looks like. It's just 5 studs and 5 plain holes.
This is something that you could just cut out of like 3/8 plate steel and drill out yourself.
Or, if you know someone with a water jet or plasma jet table should bang these out SUPER easy.
If you give me the inside bore diameter and what studs you want to run, I can draw it easy peasy.
This is what the commercially available ones look like:
https://www.speedwaymotors.com/Speedway-Wide-5-Wheel-Adapter-5-on-4-3-4-Inch,29179.html?utm_medium=CSEGoogle&utm_source=CSE&utm_campaign=CSEGOOGLE&gad_source=1&gclid=CjwKCAjw1K-zBhBIEiwAWeCOF8F1uPw-tEm3DvLYpPmwFcZxubHeGs73nREiRm5ecqMqxIT1F4Wf_hoCLIgQAvD_BwE
I've talked to this a bunch with gimpy for his CP Camaro. I've also done wheel centers for my fmod. The fewer bolted interfaces you have largely the better. I wouldn't want to stack too many. O2 is the most likely thing that I would see. You could probably do that fairly easily if you have precision things to lay it out. Of course that does depend on brake clearance and what you have to do there.
Wvumtnbkr is probably on to the correct thing for you to chase.
For funsies here's a picture of a wide five setup on a car from an event I was at recently. It was using wide five hubs so not necessarily much help to you. That was coming at it from the angle of trying to fit 17"s on wide five.
The other "stunt" I had considered for my Challenge car was machining a 5-spoke wheel to be the adapter. I would think it might work if the stock aluminum wheels have a solid spoke, but not with a hollow one. Just keep the center and put new studs in the ends of the spokes.
Yes.....it's sketchy....
wvumtnbkr said:
Wait, I just looked at what a wide 5 to 5x 4.5 adapter looks like. It's just 5 studs and 5 plain holes.
This is something that you could just cut out of like 3/8 plate steel and drill out yourself.
Or, if you know someone with a water jet or plasma jet table should bang these out SUPER easy.
If you give me the inside bore diameter and what studs you want to run, I can draw it easy peasy.
This is what the commercially available ones look like:
https://www.speedwaymotors.com/Speedway-Wide-5-Wheel-Adapter-5-on-4-3-4-Inch,29179.html?utm_medium=CSEGoogle&utm_source=CSE&utm_campaign=CSEGOOGLE&gad_source=1&gclid=CjwKCAjw1K-zBhBIEiwAWeCOF8F1uPw-tEm3DvLYpPmwFcZxubHeGs73nREiRm5ecqMqxIT1F4Wf_hoCLIgQAvD_BwE
Took the words and link outta my mouth
I know you could make them easy. At $54 each (I assume) pull the trigger and buy those!!!
Warren: Listen Tendernuggets, the plan was to buy the skinny sixteens for rears on the drag race and as transport tires and if Plan A falls through as competition tires.
Rob and company: I have a set of 5x105mm adapters and a set of 3/8" hub plates like the ones you have shown for the test fit. IF they fit the front brakes and struts I will work out duplicating the assembly as a single alloy piece. I think that's best.
I may be one of those people with a water jet.
I just put some wide 5 on my RX-7 using the Speedway steel adapters...
275/60-15 radials on 12" wide...
Grant
So for test fitting and getting it all sorted I ordered a set of of the 5x4.5 to wide 5 Speedway adapters that will bolt to the 5x105 to 5x4.5 adapters. If the test fit is right then my CNC lead will help me cut a set of alloy one piece adapters.
Grip plan in place.
