Forum

Hi there,

Please excuse me for writing in English, I have added a google translated version below.

I need some help with wheels on my 1996 M3 Evo. I have bought some BMW contours from a E34 M5.



These are:

Front - 17 x 8.5 ET18* 225/45
Rear - 17 x 10 ET18* 245/45

The wheels have had 3mm taken off the inside edge of all wheels, therefore TRUE offset is ET15 + 3mm, ET18

Qu:

1) If I fit these wheels as they are, how much roughly will I need to pull the fenders? I was thinking 40mm on the rear 20mm on the front? Please note I have stock rear bumper.


2) If this is too extreme/wide, instead I could do the following:

Front - 17 x 8.5 ET41 225/45 (stock rear Evo contours)
Rear - 17 x 8.5 ET18 245/45 (front E34 M5 contours)

Although now the rears have a 23mm different offset to the fronts, they stick out 23mm more. Obviously now the fronts are the same width as the rears (8.5) where as the stock set up is staggered (7.5 front & 8.5 rear).

With the above in mind, am I best to use a spacer on the front (20mm?) to bring the offset close to the rears therefore a more balanced setup? Or I am best to leave it as is bearing in mind the front is now 1 inch wider.

.....................

I do want it to look good but I also don't want to ruin what BMW's scientists perfected with the staggered setup. I do a lot of high speed runs so stability is very important.

If anyone could advise me on what to do I would really appreciate it.

Kindest Regards,

Monky


TRANSLATED



Hi there,

Bitte entschuldigen Sie mich für das Schreiben in Deutsch, Englisch, Ich habe eine Google-Übersetzung aus.

Ich benötige Hilfe mit Rädern auf meinem 1996 M3 Evo. Ich habe einige Konturen von einem BMW E34 M5. Diese sind:

Front - 17 x 8,5 ET18 * 225/45
Hinten - 17 x 10 ET18 * 245/45

Die Räder haben 3mm genommen den inneren Rand der alle Räder, also TRUE Offset ET15 + 3mm, ET18

Qu:

1) Wenn ich passen diese Räder, wie sie sind, wie viel muss ich etwa um den Kotflügel? Ich dachte 40mm auf der Rückseite 20 mm auf der Vorderseite?


2) Wenn dies zu extremen / Breite, sondern kann ich die folgenden:

Front - 17 x 8,5 ET41 225/45 (Lager hinten Evo Konturen)
Hinten - 17 x 8,5 ET18 245/45 (vorne E34 M5 Konturen)

Obwohl nun die erzieht eine 23mm Ausgleich der verschiedenen Fronten, sie sich aus 23mm mehr. Natürlich sind jetzt die Fronten die gleiche Breite wie die erzieht (8,5), wo die Lager errichtet ist gestaffelt (7,5 vorne und 8,5 hinten).

Mit dem Vor diesem Hintergrund bin ich am besten für die Verwendung eines spacer auf der Vorderseite (20mm?), Um den Ausgleich der Nähe des erzieht daher eine ausgewogene Setup? Oder bin ich am besten, es ist unter Berücksichtigung der Front ist jetzt 1 Zoll breiter.

.....................

Ich will sie gut aussehen, aber ich auch nicht wollen, dass in den Ruin, was BMW mit dem Wissenschaftler perfektioniert gestaffelte Setup. Ich habe eine Menge hoher Geschwindigkeit läuft so Stabilität ist sehr wichtig.

Wenn jemand mir sagen könnte, was zu tun, würde ich wirklich schätzen.

Mit freundlichen Grüßen,

Monky


Bearbeitet von - Monky am 03.03.2009 04:16:10

Bearbeitet von - Monky am 03.03.2009 04:20:27

Bearbeitet von - Monky am 03.03.2009 04:21:11

You drive a coupé right? I drive a hatchback (compact).
There is a little difference in the space for wheels
but since I have had nearly the same wheel-dimension
I had to widen the fenders about 2cm (front) and 3cm
(rear) just as you proposed.

This will look like this (rear)...

Likely the same in the front, more pics in my fotostory.

BUT for the 8.5x17 rim I took a 215/40 tire and for
the 10x17 rim I took a 245/35. Therefore I got a
little bit more space in the upper area because the
tire stretches more. But maybe this will lead to a
deviation of the speedometer because the rolling
circumference of the whole wheel (rim + tire) gets
smaller.

Many thanks for the reply :)

I actually have a Evo Saloon, hence I love the contours so much!

I'm thinking I am going to need an even bigger pull if I want to run the 245/40's on the rear, maybe I need to follow you and go down to 245/35 which like you say will allow more room.

If I was to use the orignal rear contours on the front (17 x 8.5 ET41) and then use the M5 front contours on the rear (17 x 9.5 ET13), would it be best to try and match the offsets? Therefore using a spacer on the front to bring the offeset nearer the rears? Would this create more stability do you think.

Really appreicate your help though many thanks.

Regards,

Monky

I would say, using spacer to match the offsets is
a good idea and will lead to a better directional
stability. I mean, otherwise your car will drive
in an asymmetrical line. Hope you understand what
I'm trying to say. :/

Yes sure do, I'll get a 20mm spacer as some longer bolts :)

Many thanks, I'll post up some pictures when done. This is what the front M5 wheel looked like on the rear, excuse the colours this was done by the previous owner I plan to go silver with polished lips!

No problem. :)
Let's see some pics when it's done or when
you work on the fenders. Those pics with
custumized and unpainted parts are the most
interesting ones...

Bearbeitet von - Nicore am 06.03.2009 09:50:40