NOTURX8

iTrader: (-1)

I've read plenty of threads of people wanting to adjust their rear cambers for proper fitting due to the wide of aftermarket Rear rims on our cars.

I've seen the JIC adjustable kits for $700 each set + even more depending which arms you buy which is outrages, it's been almost 3 years since they were introduced to the market and it seems there isn't another competition to have an option or a choice of preference.

I'm currently running 10" on the rear , I don't experience too much noise, only when the car jumps exesively and that's about 15% of the time when I drive. I do know I hate it when it happens cause it sacrifices my tires.

So my main questions are:


1. Does anyone know where to buy besides JIC or has customized the RX8 adjustable rear cambers for the benefit of wider rims ( made by a machine shop ) etc.

2. Is there any other BRAND besides JIC that manufactures adjustable camber kits for the RX8.

3. If any of the questions above were answered with a yes, please submit comments of improvement, pros / cons etc.

tiltmode43

iTrader: (15)

You can adjust camber on the stock suspension, you know.

Grab a 19mm socket/wrench and that's all you need. Keep in mind this plays with toe settings and if you aren't careful you will regret this! It is, however, a good quick fix if need be.

The main question is, are your rear fenders rolled?

I don't think there is 1 person on the forum that has wheels aggressive enough that they have to run a specific amount of negative camber, just for the wheels to fit.

What are the wheel specs?

Megan makes camber arms similar to JIC's, for about half the price. I plan on going with those myself, if I end up keeping the car.

NOTURX8

iTrader: (-1)

Well I had Western Auto a few months ago to adjust the OEM cambers ( negative ) all the way and it's just not enought by 1/2 inch the tires stick out, I noticed I have about 2 1/2 of space to push the wheel more inside , but the OEM adjustable cambers wont go anymore.

I really want to make sure if I decide to go custom made by a machine shop, how would it affect in the suspension and possible other problems that may arrise by this option.

Wheel Specs - 114.3 x 5 ( GFG Staggered Wheels ) Model named "Tripoli"

Tires 245/35/20 - 8.5 front

Tires 275/30/20 - 10.5 rear

I've seen others with this set up , but it has cost them $$$$$$ to adjut the rear.... due to the camber options

I'm checkin on the Megan's as we speak to see their pros - cons etc.... I hope this thread really involves more people, cause $700 for just a 1 set of JIC really sucks if I were to buy all 3 rear sets like the toe, control and camber arms I'll spend like $2000 maybe more since each set is almost $700.... there has to be some other option in the market or somebody that has evolved this allready.

dezau

iTrader: (3)

^ ?.? wt's the offset?

I8U

iTrader: (1)

To the OP, you should have just wheels with the right offset and you would have been good to go from the start.

tiltmode43

iTrader: (15)

We need wheel offsets to know your problem.

What is your intention for the car? Show car?

Have your fenders been rolled yet even? If so, pulled out a bit? This is how to fit wheels, not with maximum camber (unless roll/pull has already happened).

You don't need any more than factory camber. Those tires are larger than OEM, as far as outer diameter goes, thats a problem. They're also wider than need be for an aggressive fitting setup.

Without offset information on the wheels (It will say the specs on an inner spoke of the wheels, offset is denoted by "et" IE and offset of +20 would be written et20) its hard to say whether or not these will fit.

I can say, however, you are using the wrong tires if you're having troubles with fitment. Mount the 245/35's on the 10's and get some 225/30's (or a bit skinnier if possible) for the fronts. You're tires are too wide to fit if you're needing that much camber to fit.

We'll figure this out for you, just get us those offsets and we'll set you up...

dannobre

iTrader: (3)

Correct ...its all about the offset

NOTURX8

iTrader: (-1)

Hey guys I found the offset, it's 35... I know, I know it's way too off our standard offset setting is 38 -50, but I know in this website people tend to defy of what people consider unrealistic.

MSD ignition kits, PTP or Esmeril Turbos, Mazdamaniac's AP, Ignition Kit, Fuel Pump etc...

So far I know there are many RX8 owners who wish to resolve this camber issue to have more options on the wheel fitments, so I tend to search for concrete answers on this special project to see what can be made.

I'm having the rims coated black as you see the ferrari with the GFG Tripoli 5 rims. I know this will defenitely make it more noticible and better looking.

I've rolled the rear fenders a bit to open some space but that didnt help, the main problem is that the tires stick out 1" 1/4 and confirming by pictures I still have 3" to push the wheel more inside to avoid all this hazzle.

I'm sure if this problem is solved, there will be more RX8 owner wanting to have this meaner and aggresive look on the car with staggered wheels.

As for the fronts 245/35/20 have a better handling than 225/30/20 I've experienced this and not that I'm some Autocross King or Drifter, it's the way the car handles the curves and responds.

As for the rears 275/30/20 the width is 10.5 with an offset of 35 I have yet to confirm the style and response to how they will feel when driving, please note each GFG rim weighs almost 15 lbs less than the ones I have allready installed. So with the benefit of almost 60 lbs lesser I can increase a bit more power and better handling.

Any suggestions ? ( NO COMMENTS ON SELLING THE RIMS PLEASE ) not that I'm stubborn, I just want to make this doubt solved, that many of us have with wider rims and the obligation to follow the standard offset of 38 - 50.

Thanks

NOTURX8

iTrader: (-1)

Okay it's a bit hard to ask for details with internet pictures jejeje .... so here is my Rx8 with the GFG wheels mounted.

Now the front offset is fine and no problems experienced on cornerning, what exactly I want to do is adjust the rear wheel inside at least 1" 1/2.

I've thought of reducing the "bolt pattern faceplate" of the rim at least 1/2" but it will reduce the gripping of the rim at least less than 3/4 " which is to dangerous originally it's 3/4 and that measure is safe, plan to keep it that way also :o.

My best solution since these rims are forged 3 pieces, I can take them apart easyly, I have drawn and consulted with the machine shop making a custom spacer to add more offset to the rims and increase the offset from 35 to maybe 40. But the aluminium or steel material is way too expensive, $400 for 2 plane aluminium plates or $600 for 2 steel plates either option with dimensions of 24"x24"

Does anyone know of a very , very extreme light metal ( BUT DURABLE AS STEEL ) than can be used for this kind of project, I want it to be able to hold enough torque.... someone refered me to Starboard ( it's used on boats lol... but I know cause of the heat built I might experience a dis-balance on the wheels in the future.....

I know I will have to balance both rims for perfect alignment depending on what material I use to make the spacers.

I've also come up with drawings to custom make some control, toe, camber arms, but the specs of the suspension is what I'm worried about.

BTW fenders were rolled by 3/4, I wanted to go more but I decided to see what options I have without sacrificing the body too much. ( A wide Body Kit will also be the best solutions jajajaja but that'll have to wait since I'm almost done paying the bank ( 5 months left for the title ) woohhoooo....

dannobre

iTrader: (3)

Don't take this the wrong way...but the wheels are THE problem ..

Why screw up the suspension geometry, or try to machine expensive spacers that are a huge compromise......

When what you need to do is get different wheels that fit...

NOTURX8

iTrader: (-1)

I haven't started anything yet exept mounting the wheels onto the car to see where I stand, with all the options and best solution my only way is to increase the offset of the wheels.

It's hard to look for other wheels, eventually I will have to sell these rims to someone with a 350z, 370z, Mustang or Infinity etc... I got a great deal for $2000 with tires on these wheels, in the market they value close to $5000 without the shipping. So figured just to brainstorm the fitting in the rear would be challenging and experience something diferent than the rest.

No ofense, but I have also thought of your suggestions for weeks, and simply wanted to experience this small project without affecting the suspension geometry as you indicate.

It's the reason why the custom arms are a no solution.

However having the wheels offset adjusted just a bit might be the solution for what I'm looking for. If I decide in the future to sell these rims I can sell them to another Rx8 user or even to the cars mentioned above.

Honestly my car is mostly just for shows, I don't do any hard driving nor autocross.

tiltmode43

iTrader: (15)

When I made tire recommendations earlier, I thought it was a 10" rear, not 10.5.

You can fit these, your tires are too big though. I guess you aren't having problems with the fronts? I'd still get a bit skinnier tire to fit the look more.

You say its more of a show-car than go-car, true, this is why you went with 20's.

Go with these tire sizes:
Front 235/30/20
Rear 265/30/20


Don't take the wheels apart or do anything ridiculous like that, just buy different sized tires! The wheels can easily fit, you just need the proper size of rubber and a bit of tire stretch, due to minimal fender work. The tires will be stretched, you won't have the rubber protecting the lip of the ring, its actually quite trendy for show cars. The wheels will look good but you will need a major drop, I really hope some coilovers are next on the list...

TeamRX8

iTrader: (25)

not that I usually go out of my way to help people too dumb to use the proper wheel offset, let alone even dumber wheel diameters:

https://www.rx8club.com/rx-8-racing-25/new-rx-8-suspension-race-parts-mazdaspeedmotorsports-157592/

tiltmode43

iTrader: (15)

You've gotten soft!!!

NOTURX8

iTrader: (-1)

Thanks Team RX8, I'll look into the adjustable heim joint arms

tiltmode43

iTrader: (15)

This seems like a waste, just get the right size tires. Cambering out to that degree will just kill your tire life as well as hurt performance. Anyways, by this point I've said my shpeal, you seem set on doing it this way so go for it.

Endless Rotaries

iTrader: (6)

1. Running the amount of negative camber you require will COMPLETELY RUIN THE ENJOYMENT OF DRIVING THAT CAR.

2. The only way to fix this problem is have GFG install new outer barrels, make them thinner thereby reducing your wheel width and increasing your offset.

3. Alternatively if you wanted to keep them that wide in the rear then you will have to change both the inner and outter barrels. Decrease the outter barrel width while increasing the inner barrel so it's still 10.5". I'm not sure if this will be possible from the calculations i've done.

My recommendation is to just get a half inch thinner outter barrel for the rear wheels. Make the wheels 10" wide and you should be fine. This might be the most legitimate and cost effective way to acheive what you want.

Were you planning to lower the vehicle some more?

Rishie

Ross_Dawg

iTrader: (2)

Hmm... wonder why the OP got banned?