FC3S_nataku

iTrader: (3)

What if I get coil overs? How wide can I go then? Or with shines wide front fenders? Thanks for the quick reply blue

Jager

iTrader: (10)

275/40/17 Nitto 555R on a FN01R-C 17x9 + 35.

Will this fit onto the back of a stock FC?

BLUE TII

iTrader: (9)

What if I get coil overs? How wide can I go then? Or with shines wide front fenders? Thanks for the quick reply blue

Some coilovers provide a little room and some take up more room than the stock spring (at the bottom perch).

The camber plate that is on a coilover will allow you to dial in more negative camber to tuck the top of the tire in the fender and keep from wearing the outside of the tread off when driving hard.

I run 255/40-17 on 17x8.5 +30 on stock front fenders with the lip rolled under and max negative camber (2.75 deg) on JIC FLT-TARs. Still wears the outside of the NT01 when racing.

Modified Shine fenders would allow a 275 wide tire up front if you had the PERFECT offset, but all the 275s are too tall and would rub everything turning and over bumps (not available with short enough sidewall aspect ratio).

BLUE TII

iTrader: (9)

275/40/17 Nitto 555R on a FN01R-C 17x9 + 35.

Will this fit onto the back of a stock FC?

It will "fit" and probably work on the street, but the tire sidewall will rub the inner fender lip on hard bumps or if driving hard.

I run a 275/40-17 on a 17x9.5 +40 (5mm more clearance to fender than the +35 you mention) and it was fine on the street but for racing I had to roll the rear fender lip up out of the way in a few places to prevent rubbing.

But, +35 offset and a rear fender roll is probably better for racing anyways as some wider 275 tires will fit as well as narrower 275s without rubbing the trailing arm.

BTW, might as well go with the 17x10 +35 on the FN as it is the offset placing the tire right right between the fender and trailing arm that is critical- there is plenty of room for more rim, just not tire...

Creasy

Hi, I have been reading all the pages and am pretty sure this setup will fit but need confirmation, concerned over the front widths with 8.5j.

Front: 18x8.5j with 235/40/18 +25 offset

Rear: 18x9.5j with 265/35/18 +25 offset

My car is a Standard bodied, 89 FC Convertible T11.

Thanks

Jager

iTrader: (10)

First off, thank you for taking the time to answer my inquiry. I appreciate you sharing your information with me. Btw, I love the color of your car .

So the cliff notes are (I just try to be extra clear for my understanding), I can fit the 275/40/17 if I utilize a fender lip roll? If so, I'll roll them by the time I mount the Nitto's.

I already purchased the 17x9 +35's. I tried to use a size that I could switch between a 255/40/17 to a 275/40/17 if needed, tried to have multiple options. After I got them I looked into a few extra options (molded in Corksport overfenders), sometimes I think I'm better off waiting, but I wanted to keep a stock body. Anyhow.

So would you still recommend going to the 17x10 + 35? It would fit fine with a stock style suspesion (Eibach and AGX most likely, nothing against coilovers, but for the driving I do, I wouldn't beleive it would be logical to have).

Sorry I have so many questions but I would like to do it right once, if that makes sense?

Thanks again for the help,
Chris

Josh18_2k

iTrader: (3)

^ FYI corksport fenders are really wide. if you're only running 255's in front, i'd recommend Shine's fenders. i roll 285's under my corksports, and theres room for a little more.

Jager

iTrader: (10)

This car has Mariah front fenders, Corksport overfenders:

http://s183.photobucket.com/albums/x142/LS1FC/

NyToy if you remember from the V8RX7Forum.

Josh18_2k

iTrader: (3)

mariah and shine seem to be really similar in design/width. shine is cheaper tho

BLUE TII

iTrader: (9)

I can fit the 275/40/17 if I utilize a fender lip roll? If so, I'll roll them by the time I mount the Nitto's.

yep, in the rear.

I already purchased the 17x9 +35's. I tried to use a size that I could switch between a 255/40/17 to a 275/40/17 if needed, tried to have multiple options.

You are good to go then.

17x9 is probably better if you want to be able to do 255 and 275 in the rear. I had been running 255 on 8.5" +30 offset rim front and 275 on 9.5" +40 offset rim rear and with the bumpsteer eliminator kit I was amazed that the car drove perfectly straight over bumps, seams and patches in the road even when the DOT R NT01 wore down to the slick carcass.

Then I "stretched" the 255 over the 9.5" in the rear and kept the front the same and it all of a sudden had horrible bump steer from the rear- WTF? The NT01 don't like the stretch I guess?

So would you still recommend going to the 17x10 + 35? It would fit fine with a stock style suspesion (Eibach and AGX most likely, nothing against coilovers, but for the driving I do, I wouldn't beleive it would be logical to have).

17x10 +35 would be great if running 275/40-17 and will clear stock rear suspension and leave the tire in the same spot relative to the fender as a 17x9 +35.

Based on my limited experience of 255/40-17 on 17x9.5 and bumpsteer I would not do a 255/40-17 and 17x10 on my own car unless I was able to drive someones car set up with that size rim and exact tire I was going to run so I could verify that combo didn't have bumpsteer.

^ FYI corksport fenders are really wide. if you're only running 255's in front, i'd recommend Shine's fenders. i roll 285's under my corksports, and theres room for a little more.

Ooooh, thanks for that info and pic. Cut up to rivet to stock front fenders (CSP rules requirement) while flexed out you *may* get a 315 to fit eh? I am thinking of the best way to get 315 front 335 rear V710 on a CSP build.

Jager

iTrader: (10)

I believe Josh has the Corksport front fenders, not the overfenders (hence the vent, plus he runs massive tires!).

There seems to be a few overfender options that people have used:

The Corksport ones (I just want to use the rears to fit a 275 comfortably, too bad Corksport doesn't seem to know the limit). I'd link those photos, but they don't show up here. But take a look at that Photobucket album I posted earlier. Those are Corksport rear overfenders. I'm contemplating giving them a try.

Then there are:
[img]https://farm4.static.flickr.com/3521/4006777934_2b8dfec0f9.jpg[img]




I believe they are off a 280ZX? I can find the information if you're interested.

Btw, he's sporting a 315 on the rear in the first of those pictures .

Josh probably can fill in as much or more information.

rotarybeat1287

iTrader: (16)

Work Equips just came in!



17x8 +35mm fronts
17x9 +35mm rear

Wondering what tire sizes I should run. I don't want it to look like a front wheel drive car nor do I want it being stretched nor ballooned looking. I have Bilstein Coilovers and rolled my fenders in the front while nothing on the rears.

I've heard so many combinations I've lost track. About the only thing I see most common of is that on an:

8" wide wheel = 225, 235?
9" wide wheel = 255

I'm not sure on sidewall to make it even. I don't care if they are the same series like 2 40's or so I just don't want a drag car nor do I want the fronts taller than the rears.

Any recommendations...

Josh18_2k

iTrader: (3)

Jager - you wont need overfenders in the rear with 275 on a +35 wheel. just roll the fender. any wider, and yah you'll have to do something.

rotarybeat- run 235/40 and 255/40.

the end

Jager

iTrader: (10)

I figured.

Thanks Josh!

Btw, I like the new paint job!

BLUE TII

iTrader: (9)

I believe Josh has the Corksport front fenders, not the overfenders (hence the vent, plus he runs massive tires!).

Oh I know Jager.

It is just for Street Prepared catagory you must use a "bolt on" flare on a stock fender and are not allowed to replace the whole fender. Though you are allowed to modify the body for tire fitment from the wheel mounting hub face outward...

So for the front I was proposing taking the wide vented Corksport fenders and cutting off the mounting surfaces (so it looks like a mold in rear quarter overfender).

Then riviting that to a stock fender with everything but the bit needed to mount the overfender cut out.

You could flex the front fender out like you would a rear overfender and maybe get room for a 315 wide tire and stay within the Street Prepared rules.

BLUE TII

iTrader: (9)

Unfortunately, those bolt on 240Z fender flares will not work well for racing as you actually need full suspension stroke and they would look retarded with 4 inches of wheel gap to make that happen.

Easy_E1

iTrader: (3)

OK , Noob to the RX7b worlld as in soon to be owner of a '91 TII. Have owned RX8's for 4 years. And rotaries as far back as 1976.
So I was wondering if a 18x8.5 with a 35 off set would fit this car? With a 265/35 tire.
Flame the hell out of me if you want. But I'm gonna ask the question anyway.

BLUE TII

iTrader: (9)

Easy,

Rear is good fit with up to 255 wide tire, 265 wide probably fine.

Front may need a 5-10mm spacer depending on tire width. 205 to 225 wide in the front with no other mods.

Jager

iTrader: (10)

You educate me on every post.

Easy_E1

iTrader: (3)

Thanks for the info. I'm a noob when it comes to FC's. But not for long if I have my way.

BLUE TII

iTrader: (9)

You educate me on every post.

LOL, I need to re-educate myself.

It is just for Street Prepared catagory you must use a "bolt on" flare on a stock fender and are not allowed to replace the whole fender

I should have written that "add on" flare as it is not specified how it shall be attached in any manner.

So you could create a metal widebody kit using modified stock pieces and add (weld) it onto the stock fenders.

The intent of the rule is to not allow a weight reducing panel to be substituted for a stock one. I wish there was an addendum allowing bolt on replacements if the weight is equal to or greater than stock like what they have done with radiators now- our front fenders are light.

Josh18_2k

iTrader: (3)

you could probably run pretty far with that "stock fender" rule. ie, cut so much material out of it, that the only metal parts are the mounting surfaces lol

Project86

im going to run work vs-xx. w coilovers.... any advice?

K!NCH

iTrader: (2)

Depends on the size.

Longhaul

This thread is ridiculously long!

Has anyone put together a chart that shows wheel size tire size combos for front and rear that have been tried and work? That could reduce this thread to one post with a whole bunch of links to pictures of the solutions.

My head is about to explode!

All I want is 17" rims with 255/40/17 tires on the back and 225/45/17 on the front for my 89 convertible. I've spent two days on this thread and I'm still not sure what width the rims need to be (9.5 for the rear? 8 for the front?) and what range of offset will work.

I guess it's the engineer in me that wants to see a chart...