Wheel discussion (From 818 Open House Pics Thread)

[Frank818]

MOD NOTE: This discussion was created from this 818 Pic Thread:
http://thefactoryfiveforum.com/showt...House-818-Pics

Completing the detailed suspension pix of I can't remember who, those pix are AWESOME!!!!! I needed that to check on a few details.

- What are the rims are the S and R?
- Those KONI adjustables, are they compression/rebound adjustable as well?

[metalmaker12]

S wedssport
R I think Rotas
S just height
R rebound/ compression too

[spaceywilly]

The S has Wedssport tc105n and the R has Work CR Kai

[Frank818]

Work Emotion CR-KAI
They are the best looking I've found so far for my taste. Less than 400 per rim.

There's also the Emotion CR Ultimate, which is same looking but lighter and stronger. Both in 17-18.

That means the R had 18x7.5 in the rear, unless it had 5x114.3. I am reading the Work specs on the wheels.
Quite a lot more choices in 5x114.3. How complex what that upgrade again (5x100 to 5x114.3)?

The CR Kai in 18x9.5 is about 22lbs and the Ultimate is apparently about 2lbs less per wheel.

Metalmaker, do you know if it's possible to have the R suspension in the S? Or the specs are really for track us and too stiff on the road, even though they are rebound/comp adjustable? That last feature is quite useful around my place, I currently have old Bilsteins PSS-9s and I had to use that adjustment to find a good compromise.

[metalmaker12]

Thanks Sti, do you have FFR confirmation of that wheel, I just want to be sure.

You can get the r's coil overs if you want, but it is an option. The rear rims were 18x9 or 18x9.5, I need a refresher lol.

[Frank818]

http://www.jegs.com/i/Trans-Dapt/969/3604/10002/-1

Now these are... 1.25" inch thick (and using 1.5" studs, not 1.25") if I can read correctly. That's... 31.25mm chopped off of the offset. Gee... Would need 53mm offset deep concave wheel and you'd be at 21.75mm as actual. I wonder if 255s would rub on the fenders with 22mm offset.

I think I'll have more trouble selling my moded car (to finance the 818 and save space in the garage) than converting to 114. Unless the 18x7.5 (in 5x100) in the rear can fit 255s.
But I really really like those CR Kai and CR Ultimate... in deep concave.

[metalmaker12]

Sti, from the pics it looks like I see the WORK raise lettering on the R's rims, that works for me lol, sorry I concur

[Samiam1017]

And pics of the rear down low to see the rear diffuser. It's hard to tell with the shadows in the pics.

[Frank818]

Thanks Sti, do you have FFR confirmation of that wheel, I just want to be sure.

You can get the r's coil overs if you want, but it is an option. The rear rims were 18x9 or 18x9.5, I need a refresher lol.

According to Work's website, 18x9 don't exist, so if it's 18x9.5, they are exclusively in 5x114.
Now if they are the CR Ultimate (same good looking), in 5x100 it's only 18x7.5 or 18x8.5.

[RM1SepEx]

They do look odd, but in terms of speed to road worthy, factory mirrors are best for now. I sold mine off (they were WRB anyways). I still want F430 mirrors, but it looks like they would take more work to mount.



It looksl ike they took of the factory mounting triangle and made a custom piece that attaches directly to the vertical axis hinge.

exactly what they did, I discussed this with Jim at the open house.

[metalmaker12]

According to Work's website, 18x9 don't exist, so if it's 18x9.5, they are exclusively in 5x114.
Now if they are the CR Ultimate (same good looking), in 5x100 it's only 18x7.5 or 18x8.5.

That's why I questioned STI, they are 5x100, I looked at spindles close

[Frank818]

That's why I questioned STI, they are 5x100, I looked at spindles close

Then they must be 18x8.5, 7.5 would be pretty small to fit 255/35/18 (assuming the size on the R).
Still, depending on the rims someone wants, maybe a 5x114 conversion would be an option, but I don't know the best approach.

[bnr32jason]

Work, as well as many Japanese wheel companies are known for making "one-off" size and offset wheels if you can get a few people together to do an order. When I wanted a set of Work XD9's for my R32 GT-R I wanted 18x10 but wanted slightly lower than the typical +18 setup they normally offer in that size. So myself and two other people went in on some custom 18x10 +8 XD9's and only paid only about 10,000 yen extra per set. Now we were in Japan and placed the order direct through a Work dealer, so that probably helped.

While there is not currently a 5x100 available in 18x9, I wouldn't doubt that Work made the CR-Kai in that size in 5x100 at some point.

[Frank818]

Currently not available in 18x9 in either bolt patterns, but it's good to know about the one-offs, though, tnx for the info.
I'll do all I can to get those wheels, I really love them. But I got time, a lot of time... I am not even on the 818 list yet! loll

[bnr32jason]

You could also go with 18x8.5 in 5x100. 255's will fit nicely on a 8.5" wheel. Then you don't have to bother with any custom order headaches.

http://www.frsport.com/index.php?tar...roduct_id=8219

[Jim Schenck]

Wheels on the R are Rota Torque, the rear are 18x9.5 with a 35mm offset and they do rub slightly with the 255 hoosiers although those tires have a section width more like a 275 than a 255.

[Mechie3]

Rub inside, or rub outside?

EDIT: Looked up Hoosier Tire info.

255/40/18 has a tread width of 9.8" and a section width of 10.6".

255/35/18 has a tread witth of 10.3" and a section width of 10.8".

10.6" is 269mm
10.8" is 274mm

[Frank818]

You could also go with 18x8.5 in 5x100. 255's will fit nicely on a 8.5" wheel. Then you don't have to bother with any custom order headaches.

http://www.frsport.com/index.php?tar...roduct_id=8219

The CR Kai yes in 18x8.5. Except it's not the look I want, they are flat face. The Semi and Deep concave require 5x114.
Then I want to pay a premium for lighter and stronger wheels, the Ultimate is the choice. 18x8.5 in Semid concave 5x100 is available, but not the Deep concave.
I got time to think about that and see my options. Maybe another brand/model looks similar.

[Frank818]

Wheels on the R are Rota Torque, the rear are 18x9.5 with a 35mm offset and they do rub slightly with the 255 hoosiers although those tires have a section width more like a 275 than a 255.

Ha, that looks the same as the Work CR Kai. lolll
Yeah, I'll keep those on my list as well! They are not expensive! Like 800-1200 a SET OF 4, depending on the option.
True 255s would probably fit if the Hoosiers are more like 275s.
tnx for the info!

[metalmaker12]

See I knew they were Rotas, jim or Dave had mentioned it to me way back, but I was thinking maybe they did change them. They do look like the work wheels since rota basically makes look alike wheels. Another example to only post when you got confirmation. Since the car is so lite I would think the Rotas would be a decent rim to use. There on my potential list too. Jim has told me a normal 265- 275 should fit, I concur. Boy it's hot out

[Canadian818]

Ha, that looks the same as the Work CR Kai. lolll
Yeah, I'll keep those on my list as well! They are not expensive! Like 800-1200 a SET OF 4, depending on the option.
True 255s would probably fit if the Hoosiers are more like 275s.
tnx for the info!

Or perhaps 275's will fit with the perfect offset.

[Frank818]

See I knew they were Rotas, jim or Dave had mentioned it to me way back, but I was thinking maybe they did change them. They do look like the work wheels since rota basically makes look alike wheels. Another example to only post when you got confirmation. Since the car is so lite I would think the Rotas would be a decent rim to use. There on my potential list too. Jim has told me a normal 265- 275 should fit, I concur. Boy it's hot out

I reckon there isn't much you don't know. loll

They are actually 22lbs in 18x9.5 +20. According to someone who weighed them on another forum. 22lbs, that's the same as the Work, or maybe 2lbs more but hey, that is nothing for street driving.

So the rears are 18x9.5 +35.
The fronts, I think I've seen the specs written somewhere else.

Looking on the famous Tirerack.com for my prefered tire (Yoko's Advan Neova AD08), both 265/35 and 265/40 are 10.7" section width.

255/35 and 255/40 are respectively 10.1" and 10.3", so these 2 will fit no issue.

Now I have no idea of the driving differences between 35 and 40 heights. That's another story.

[longislandwrx]

Wheels on the R are Rota Torque, the rear are 18x9.5 with a 35mm offset and they do rub slightly with the 255 hoosiers although those tires have a section width more like a 275 than a 255.

at the open house the drivers side tire stuck out about an inch and the right side was flush. Either the body wasn't mounted straight, the frame was tweaked, or the flares/cuts were just uneven on the preproduction body. The left side would definitely rubbed on a bump.


there is no room for any more tire on the outside rear. very little on the inside.

in the front there is a about a fingers width left inside and outside but that's about it.

[07FIREBLADE]

If your willing to paint you could always do fender flares. Which model of rota wheels were on the 818r?

[Frank818]

If your willing to paint you could always do fender flares. Which model of rota wheels were on the 818r?

Torque.

[Jim Schenck]

The tires rubbed on the outside, but there were two other factors that kind of cancle each other out a little. The R sits about an inch lower which hurts clearance but we ran more static camber which helps it. A slightly narrower tire like the 255 Toyo, and 5mm more offset is what we have on the white car and it is a nice fit. Maybe a 275 could be made to fit with some specific brand and just the right offset but I think it would probably require a bit more camber than you would usually run on the street, so we are saying 255 is max for what we know will work without problems.

[spaceywilly]

hm... sorry I didn't think they would put Rotas on there. I had Rotas on my WRX thinking I got a great deal and then they bent pretty easily. I wouldn't use them again. They are just cheap versions of nicer wheels. Personally I'm going to get a set of the Weds for my BRZ and then carry them over to my 818 once I get one. At 14.7lbs each they are one of the lightest 17in rims out there.

[Frank818]

The tires rubbed on the outside, but there were two other factors that kind of cancle each other out a little. The R sits about an inch lower which hurts clearance but we ran more static camber which helps it. A slightly narrower tire like the 255 Toyo, and 5mm more offset is what we have on the white car and it is a nice fit. Maybe a 275 could be made to fit with some specific brand and just the right offset but I think it would probably require a bit more camber than you would usually run on the street, so we are saying 255 is max for what we know will work without problems.

That's pretty good.

Let's see, R888s in 255/35/18 have a section width of 10.2", mounted on +25 offset.
That give us an idea of how it fits.

hm... sorry I didn't think they would put Rotas on there. I had Rotas on my WRX thinking I got a great deal and then they bent pretty easily. I wouldn't use them again. They are just cheap versions of nicer wheels. Personally I'm going to get a set of the Weds for my BRZ and then carry them over to my 818 once I get one. At 14.7lbs each they are one of the lightest 17in rims out there.

Well it's nice to hear stories, will make some of us think twice.
What size tires you had?

[spaceywilly]

Well it's nice to hear stories, will make some of us think twice.
What size tires you had?

225/45R17 on Rota Tarmac 2 17x7.5. I hit a pretty decent pothole that blew out the tire and also bent the rim, but I have hit bigger potholes (and rallied) on my other set of wheels (Prodrive P1 with snow tires) and those held up fine. End of the day the Rotas will probably be fine, I am just turned off the brand now. If you google you'll find plenty of opinions on them.

[Frank818]

Jim,

May I ask what space left was there on the outside on the S?
Cuz if I find wheels with 40mm offset, using the same tires, I won't know if it will fit. If you say 35mm with these R888 255/35/18 there was 1-2mm left on the outside, then I'd know that 40mm offset wheels would be out of my list.

tnx

[Frank818]

225/45R17 on Rota Tarmac 2 17x7.5. I hit a pretty decent pothole that blew out the tire and also bent the rim, but I have hit bigger potholes (and rallied) on my other set of wheels (Prodrive P1 with snow tires) and those held up fine. End of the day the Rotas will probably be fine, I am just turned off the brand now. If you google you'll find plenty of opinions on them.

Ok, you still had to have a bad luck in a pothole and needed to blow your tire out. I thought the tire was fine and the rim was bent, on normal bumps your find on the roads. That'd be pretty bad. But still, worth consideration, especially that the Work aren't that expensive, just a matter of finding the right size, offset and face, or custom made. Plenty of options anyways.

[Mechie3]

I've had rotas on my WRX since 2007. They were even the ones on my car when it wrecked and now on my 02. It might be the style of rota you get. I had the SDR (prodrive knockoffs). They've survived quite nicely.

[StatGSR]

I have had Rota Grids on my integra since 2004, they have seen many miles on some of the crappiest roads in MN as well as about 10 track days. I would absolutely buy them again. for every 1 horror story which is typically over exaggerated or had absolutely nothing to to with the wheels strength (car was crashed or tire was damaged), there has got to be at least 500-1000 happy rota wheel owners.

[Frank818]

I am just thinking about that, do we need to have same diameter tires front and rear?
Or can the front tires be smaller (in height) than the rear? Cuz 215/45/17 are smaller in height/diameter than 255/35-40/18.

[Mechie3]

You need the same size left to right, but not front to back since it's not AWD.

[Frank818]

You need the same size left to right, but not front to back since it's not AWD.

Yeah left to right I'd imagine.

So it's not bad when the front tires roll faster than the rear?
I hope RaceLogic traction control isn't using the front wheel as the reference, otherwise it will always think the rear wheels are under spinning.

[Samiam1017]

Yeah left to right I'd imagine.

So it's not bad when the front tires roll faster than the rear?
I hope RaceLogic traction control isn't using the front wheel as the reference, otherwise it will always think the rear wheels are under spinning.

It would be measuring at the hub which would be spinning at the same speed front and rear. As there the same size. It's only the out edge of the tire that's spinning faster but at the same rpm as the center! If that makes sense! Lol

[wleehendrick]

Yeah left to right I'd imagine.

So it's not bad when the front tires roll faster than the rear?
I hope RaceLogic traction control isn't using the front wheel as the reference, otherwise it will always think the rear wheels are under spinning.

Of course the front wheels are the reference, otherwise how does the traction control system differentiate between wheel spin and acceleration? It compares the speed between wheels, that's all the info it has to go on. (Stability control systems add accelerometers, but in general traction control is based only on wheel speed)

Tire diameter mismatch can be an issue with factory traction control systems. For example, on my Z, the rear tires have a larger diameter than the fronts (275/35-19 vs 245/35-19). If the proper size is not installed, the rear wheels turn faster than intended and the traction control kicks in thinking the rears are slipping; this is a problem when some people have ignorantly installed the same diameter front and rear. I would expect a quality aftermarket system, like RaceLogic, would allow the front/rear tire diameter to be individually specified.

[wleehendrick]

It would be measuring at the hub which would be spinning at the same speed front and rear.

No it wouldn't! If the rears tires have a larger diameter, the hub spins slower. (for the same linear vehicle velocity with no slippage)

[Samiam1017]

No it wouldn't! If the rears tires have a larger diameter, the hub spins slower. (for the same linear vehicle velocity with no slippage)

You sir are 100 percent correct. Thanks for correcting that. I read and thought to quick and my mind went to one axel in stead of comparing front to rear.