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View Full Version : Wheel sizing/offset discussion (not flush/fitment)



Giannino
24th October 2014, 08:37 PM
When I first got my hachi, I had aboslutely no idea what kind of new rims I'd need. Asked a guy at a local tyrepower and his wheel sizing chart and it turned up (from him) to be my nice 15 inch rim X 6.5 +40. Now +40 you must be thinking im smoking something to put +40's on a hachi, but honestly at the time, going off his book and him inspecting my car and its current rims I had no reason to doubt.

Now my new 550 dollar a rim set of 5 watanabes (yes I got the spare too...) arrived and BAM instant problem. Already needed a spacer for the rears to fit but even after removing the front stock suspension and putting vastly more space efficient D2 coils on it, front have zero chance of fitting. Ive seen the wheels thread and its basically full of fitment and negative offset stuff. No help there from what I saw.

So does anyone have good sizing estimates for a 15x7 rim WITHOUT ROLLING THE GUARDS OUT OR SCRUBBING. Ive been looking really hard and I've found so far people suggest 15x7+20 offset for good inner clearance of the suspension and ample enough clearance to the guard without scrubbing in turns. Good Idea?

Also I guess looking to sell a set of Brand Freaking Spanking new Watanabe 15x6.5+40 Rims lol... So if anyone happens to have a Miata, or some FWD car that could use a set of new watanabes here I'm ur man XD

Edit: Though people telling me also that just 15x7 zero offset will still be inside the stock fenders with a reasonable degree. I thinking +10 maybe for practicality's sake and give some much needed high speed pothole suspension travel (roads here a shithouse).

Big T
24th October 2014, 11:45 PM
15x7 +15 for zero guard work. I have a set in 16s and they still clear everywhere.


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bazz84
25th October 2014, 12:02 AM
15x7 zero are within standard guards even without camber. Look up tsuchiya ae86 on google images. he runs 15x7 -2 from memory

Konakid
25th October 2014, 10:37 AM
15 7 zero is good size. Run 195/50/15

Giannino
27th October 2014, 06:56 PM
Thanks for the reply people :) I might just go a bit on the conservative side and get +15s as suggested prior. Local supplier suggested it as well.

Konakid
27th October 2014, 10:29 PM
get zero's trust me

Jimmee1990
27th October 2014, 10:35 PM
15x7 +15 will be well within the guards, closer to 0 offset looks a lot better and a little extra track always helps as well. Even 15x8 0 offset fits fine in standard guards with a small roll.

Javal
28th October 2014, 06:53 AM
Consider that MA61 wheels are 14 x 7 +8 and are a fairly good fit, still sitting comfortably in the guards, I would be looking at anything between a 15 x 7 +/- 0 as mentioned before and up to +8. +15 or higher is likely going to start looking poxy in a 7" rim.

15 x 8 +/-0's, some people say 'they will fit with minimal effort', but minimal effort means different things to different people. For your situation, again between a 15 x 7 +8 and a 15 x 7 +/- 0.

dove grey 64
28th October 2014, 03:19 PM
7" Zero with a 185/60 and dead stock arch lips will still touch on full compression in the rear, front with about 1.75 neg camber is fine.
I've got 14x7 + 7 with a 5mm slip on. 185/60/14.
I'd personally say get zero and see how you go with suspension, if it touches a little you would only need to roll your inner lips a fraction, like 30 degrees and you'd be fine. You wont get looks from the cops or win stance awards but the extra track is worth it

-zenki-
31st October 2014, 01:30 AM
My winter wheels are 15x7 et3 with 195/55/15. On the front the inner lips are rolled flat but even unrolled they would still fit with rubbing.

Summer wheels are 15x8 et0 195/50/15 with a bit of camber and those barely rub. And i've been driving both setups on absolute shitty roads. But then again it's lowered but not slammed that might explain why it doesn't rub much.

And the tyreguy seriously dun goofed, even the original wheels didn't have an offset that high. That's an expensive mistake.

speed_humper
9th November 2014, 01:01 AM
This is what Ive got, stock kouki suspension, no guard work:


Rears: 15x7 - 0
Front: 15x7 - +13 (could probably go zero offset at the front if you want but it would look weird)

195/50/15 all round. No rubbing issues whatsoever.

-zenki-
11th November 2014, 03:55 AM
(could probably go zero offset at the front if you want but it would look weird)


Why would 0 offset look weird?

speed_humper
12th November 2014, 02:50 PM
Why would 0 offset look weird?

I personally like to run a staggered offset. When I went 15x7 0 at the front, the rear track on 15x7 zero looked narrower to me. If I went 15x7 zero at the front, id want 15x8 0 at the rear, or 15x7.5 -5.

You could probably run both of those with minimal guard rolling on stock suspension.