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      06-02-2016, 01:33 PM   #76
quenotte
Private First Class
France
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Drives: F87N M2 Competition
Join Date: Oct 2014
Location: France

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Quote:
Originally Posted by Pparana View Post
Glad you got them in,

I ended up putting in larger spacers, I used 1/2 on the inside and a 1/4" on the outside with a 1" od, 1/2 ID. Summit had them, they also have them in 1.5 OD, but were out of stock, I will prob. order those next time from them.

I also noticed on mine, it pushed the wheel further out, so The track width is more in line with a m3/m4.

I am now running 15mil spacers in the rear and 7 mil in the front.
Before I ran 12 mil in the front. That gives me a track width difference of .9 inches. 62.4 in the rear, 61.5 in the front. That is on oem wheels.
This is it quite confusing for me...

To sum-up, and complete BP post, for the F8X TS upgrade:

Let's talk in milimeters since car is designed in metric.

Material - Stainless Steel, Aluminium?
OD - 1.5": 38.1mm ?
ID - to suit M12: 1/2": 12.7mm ?
Length:
- Front/Outside:
- Pparana 4mm
- rwalker 1/4": 6.35mm
- Rear/Inside:
- Pparana 15mm
- rwalker 1/2": 12.7mm

Total Length (Front/Outside + Rear/Inside)
- Pparana 4mm + 15mm = 19mm
- rwalker 1/4": 6.35mm + 1/2": 12.7mm = 3/4" = 19.05mm

rwalker reduced 1/2" spacer by half a millimeter: 12.7-0.5 = 12.2mm
6.35+12.2 => 18.55mm length

But then Pparana, you talk about 15mm (rear/inside) + 7mm (front/outside), that lead to a length of 22mm, 3mm more than previous setup!

So what are the right values in mm to match F8x geometry, more correct wheel placement and less bushing wear, ?

Many thanks in advance!

Last edited by quenotte; 06-02-2016 at 06:46 PM.. Reason: Bogus calculus... Thanks BP!
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