Grimlock

i need some help from you rim/tire experts. im getting some rims soon and would like to know whats the widest i can go on my 88TII.

it has stock suspension. i was thinking on going

17 by 8 in front--235/40/17, is 235 pushin it?
18 by 9 in rear--265/35/18

is this set up ok for an 88TII w/stock suspension, i plan on getting coilovers later.

thanks!

ARD T2

iTrader: (22)

You need to run a 225/45 and 255/35. This is the same setup I have and this is what works best. Make sure you indicate the offset of the wheels to us as well.


Rishie

gnx7

iTrader: (10)

It is some more coin.... but Mariah Motorsports makes front fender flares that allow 255/17's all the way around. They are $500 for the pair and follow the stock body lines.

I believe you have to run coil overs to run the 255's up front with this kit.

Why not just save up and do it all at once. K2RD.com has coilovers with AGX (KYB) shocks and rear camber link and front camber plates for $950.

You can spend more.... but why?

-GNX7

dvls-7

235s could work but u will have to make sure the offset is correct....i can't recall the exact number of the offset but i know that to find a rim with it is the needle in the haystack....so stick with 225s up front and u can go 245-265 in rear.....with a 9" wide rim u r better off with the 255s......I have 18s on mine with 225/40 fr and 245rr....works and looks nice......

Grimlock

so im going with

225/45/17 up front on a 17x8 rim--what offset is best????

255/35/18 in the rear on a 18x9 rim--what offset is best???


rishie what offset you runnin front/rear?
i was looking at RETed's site and he says to go with

25-30 offset with an 8in. rim (front)
30-35 offset with a 9in. rim (back)

i know reted knows his **** but do you guys agree?

thanks again guys

87GTR

iTrader: (61)

yeah im in the same boat need to know about offset for 8 front and 9 rear

ARD T2

iTrader: (22)

My reccommendations for offset on the wheels are as such:

8" with standard springs: +37 - +40
9" : +35 - + 38

Now if you use the GC's and die grind the lower spring perch off the shock body you can run a slightly higher offset and possibly sneak a 235 in there. By simple interpolation and math we should be able to arrive at a good offset.

4" spring to a 2.5" spring, let's say 3" to be safe. THat means a half inch on either side. That equals about 12mm. I'd go with 5 - 7 mils of more positive to allow for the section width of the tire. I'd say you can run a +45 and do the 235/40. These are just approximations so please don't take my word for it.

I know that I pull on my fender with 17,8 +37's with a 225/45/17 on hard cornering. If you roll the fenders you should not have any problems.

Thanks, Rishie

87GTR

iTrader: (61)

Rishie,

great you are alive!!!!!
these are what I got and if I have to change offsets I have to let them know by monday.


Enkei RP-F1
front:17X8 +35offset/114.3-5 & ADVAN A048 225/45-17(M) 2pcs
rear:17X9 +35offset rear/114.3-5 & ADVAN A048 255/40-17(M) 2pcs

ARD T2

iTrader: (22)

If you can get a higher offset for the front that would be good. What kind of springs are you running? The standard type?

If you give me the offsets offered I'll pick the best one for your suspension setup. The rear offset sounds just beautiful to me. That one will work great. Definitely run a higher offset in the front, up to a +38 or +40 if possible. The +35's you'll have to really roll the fender, which may just get pulled back down if not done properly. Beware of cracking the paint, please use a heat gun and be patient.

Man, I'm somewhat jealous, but not at the same time cause these must be costing you a grip.

Good luck I'll check back manana.

Thanks, Rishie

Still alive just working on a bunch of project cars for the show season and track seasons.

87GTR

iTrader: (61)

I have the ground control coil over with takiko 5 ways.
and caster/camber plates

the Enkei RP-F1 offset for 17"
7.5 +48
8 +35
8.5 +30 +40
9 +22 +35

if I only need a small spacer in the front that fine. I also have no problem in cutting on the GC perch to make it fit.

Im planning on getting the car painted again so maybe I will have the body shop do the rolling before it gets painted.

right now the fenders are rolled a little becuase of the FD wheels and 225/50/16 tires in the front.
it only hits under extream turns

V8s_are_slow

okay i'm curious about the different wheel sizes. i'm wanting to do the 17inch in front and 18's in the rear as well. but just wanna make sure i don't have any handling problems or anything. WOULD that be a problem? i don't auto-x. just drag and street use incase that helps. here's the rims i'm getting but not sure as to what offset would be good either if i'm wanting a lip like this rim has (would the lip change anything as far as offset goes?). http://www.victoriatire.com/wheels.h...del%5D&size=17

also too, i'm getting some coilovers and gonna drop it a good amount to hopefully look something like this but on my fc.
http://www.issanniracing.com/site_co.../P1010024.html

now as for the tire sizes mentioned above, are those pretty low profile tires? cause i WANT low profile tires. thanks for any additional info. hope ya'll don't mind me butting in on the topic.
scott

hawk 7

iTrader: (2)

[hope ya'll don't mind me butting in on the topic.
scott [/B][/QUOTE]

I don't think anyone will mind seeing as this is over a year old.

V8s_are_slow

oops, double post...

V8s_are_slow

you do a post and no one answers or you do a "search" to keep people from whining and add to an old post.....ya just can't win..... damned if you do, damned if ya don't....ya know?
scott

hawk 7

iTrader: (2)

I hope you could tell I was just joking. I know how frustrating it can be. Why don't you try and either PM Rishie directly or post in his personal subforum https://www.rx7club.com/forum/forumd...s=&forumid=115

V8s_are_slow

oh heck, sorry man. i hear people bitch so much it drives me nuts. yeah, i already e-mailed rishie. no reply back yet from him. so i dunno. i even posted about this issue on another thread with no real answers. mainly just the usual,"why don't ya search," answer with no real help. oh well....what can ya do? i guess post on a thread that's 10 years old or something and hope no one minds or guess if i wanna know something i'll just have to try it on my on and cross my fingers apparently...... but thanks for your support laters!
scott

RETed

The term "offset" is pretty arbitrary when it comes to rim dimesions.&nbsp A more repeatable spec is "backspacing", but only domestic (i.e. USA) rim manufacturers like to use backspacing specs; most Japan rims use offset values.&nbsp Due to differences on rim dimensions, the rims could be more than 1/4" difference in dimensions due to differing dimesions due to rim *lip*.

On top of everything else, tire manufacturers have different sidewall profiles.&nbsp The popular "curb protector" design bulges the sidewalls slightly to prevent "curb rash".&nbsp

With that in mind, you can run into wildly differing clearances in tire/wheel combinations.&nbsp Unless someone is running the exact rim and tire model/size, it's all a guess at this point.&nbsp The offset numbers I have on my website are very conservative in terms of inner suspension clearance - I will guarantee you they will clear all forms of aftermarket suspension components on top of the stock suspension stuff.&nbsp This also means the tires will usually tend to be spaced more outward, which could contact the fender lip.&nbsp Rolling fenders is usually a pretty easy affair; any of your local tire/wheel shops should be able to help you out if you have no clue what you're doing.&nbsp Tire Rack used to (still does?) rents out a really nice German fender roller that allows even newbies to get really nice rolled fenders.

I am by no means bashing Rishie.&nbsp Rishie runs a tight shop and has a lot of experience with tire/wheel combos...more so that I do, personally.&nbsp I respect his experience and his input on the matter...



-Ted

ARD T2

iTrader: (22)

Totally agree with Ted. Tires will have varying section widths and so forth. Different rims with same offsets have different backspacing. They are related but not constant.

I saw some errors in tire sizing. I ran a 225/40/17 and 255/35/18 on my RP01s, but that front tire size limits you to one or two tire brands. Although aesthetically it works very well since the sidewall heights are the same and the car has been raked, lowered more in the front.

Rishie

ARD T2

iTrader: (22)

This is why you should just contact an experienced tire and wheel person with all your specifics and they will be able to confirm or deny it's fitment.

Rishie

We can do some good approximations based on the data collected.

V8s_are_slow

hey rishie, i've contacted ya twice now. once by e-mail. once by pm....like you told me to. you not getting them?
scott