265/35 or 25/35 on 9" up front

[daniel]

Hi,

I am getting some new tyres for my 9" all around setup and am not sure whether to go with 255/35 or 265/35. I am running -2.5" degrees of camber and with the ET26 offset of the 18" wheel I think the 265 might just be a bit too wide, but then again the diameter of the 255/35 is a lot smaller than standard than I want to go. Any advice?

Thanks

[mattCSLnut]

Originally Posted by sunnybono

Hi,

I am getting some new tyres for my 9" all around setup and am not sure whether to go with 255/35 or 265/35. I am running -2.5" degrees of camber and with the ET26 offset of the 18" wheel I think the 265 might just be a bit too wide, but then again the diameter of the 255/35 is a lot smaller than standard than I want to go. Any advice?

Thanks

I run 265/35/18 ET26 9Js all round for TD work only, on standard -1.5" cumber & suspension set up and have no problems (no rubbing) so far, after 55 laps @ the Ring and one UK TD Front end grip levels are phenomenal

[daniel]

Originally Posted by mattCSLnut

Front end grip levels are phenomenal

Yes, I remember!

I am a bit lower which is why I was worried about rubbing the arch lip. I guess with -2.5" I should be OK. What tyres did you have again? I am thinking about federal 595rs.

[shimmy]

i run now 265/35x18 up front on et34 with -2 camber and it works fine BUT when i ran my 265/30x19 on et27 with -2 deg it did touch the arches, but ok -3 (so -2.5 who knows)

[daniel]

Originally Posted by shimmy

i run now 265/35x18 up front on et34 with -2 camber and it works fine BUT when i ran my 265/30x19 on et27 with -2 deg it did touch the arches, but ok -3 (so -2.5 who knows)

Thanks. Did it touch the lip or in the inner arch? How low are you?

[mattCSLnut]

Originally Posted by sunnybono

Yes, I remember!

I am a bit lower which is why I was worried about rubbing the arch lip. I guess with -2.5" I should be OK. What tyres did you have again? I am thinking about federal 595rs.

I have Dunlop DZ02g semi slicks. Superb tyres, no questions there but the NEW DZ03g are MEGA bucks (something like £300 each + delivery) I know CamSkills are doing offers on the Federal but I know nothing about them however I have heard good things about the KHUMO V70 semi slicks and I think Craig is running these on his 328i Track Slag

[shimmy]

Originally Posted by sunnybono

Thanks. Did it touch the lip or in the inner arch? How low are you?

both - on full lock they just touch the front inner arch (but not a problem) but at -2 they also just rubbed the lip of the arch, front ride height is 643mm

[DuncanR]

Originally Posted by shimmy

i run now 265/35x18 up front on et34 with -2 camber and it works fine BUT when i ran my 265/30x19 on et27 with -2 deg it did touch the arches, but ok -3 (so -2.5 who knows)

Is that with spacers mate?, when and IF i get my Team Dynamics wheels !!! Nath ?, they are ET30, AND WAS THINKING THAT i WOULD NEED SPACERS BUT IF YOU ARENT RUNNING THEM AT et34 THEN i SHOULDNT NEED THEM AT et 30 ... SHOULD I? .... AARGHH BOLLOCKS , LOOK AT THAT LOT I TYPED

[daniel]

You should have bought my 9" e26 wheels. You can borrow a set for your trip if you want.

[alexk]

Matt,

I have a very specific question for you mate.
When you put the 9x18 E46 M3 wheels in the front, is there more clearance between caliper + wheel spokes compared to the 8.5x19 standard CSL wheels ?

Can you please check for me.
I want to know whether I will need the spacers for my new track wheels (9x18 E46 M3).
I need spacers for the CSL wheels because my calipers are HUGE (I have the CP5555 caliper).

Thank you please.