E30 Zone

Hey guys, i was thinkin?

what size tires do u have on yours 17'' wheels (Alpina)

and what is the best in 60/40 mm lowering on E30




Are 215/45/17 ok?

Sorry off topic, Is that you in the avatar?

Yes mate, its me here in iceland

i have 205/40s on mine mate, as its 60/60

ahh ok thats pretty low

do you think 215/45 is to high

i put 225x45x17on mine by mistake and they were far to high,looked rediculous in my opinion, changed back to 205x40x17 next day, yours would be in between but still a bit high.id go for the 205x40

ok thx mate

215/45 are to big, I've got em with a 35/40mm?? H&R drop and they rub like mad.. stuck my 15"s back on and their staying

My reps on fitted with 215/45 + h & r cup kit but retaining the standard 325 sport springs on the rear, gives a totally level appearance not the usual tyre disapearing behind the bodywork look, absolutly no rubbing issues.

If your interested let me know and i'll try to get some Photo's.

Sorry, but are your figures for tyre sizes changing the outside diameter? Surely this has to be the same for all e30's for gearing, speedo etc etc? (im probably missing something here but dnt know much about tyres )
Sory i know this is a bit off subject.
Paul

When you guys say too big, do you mean too high in profile or too wide for the drop?

Depends what you want really, I have 205/40 but I reckon 215/40 would be much better IMO.

I have 215 X 40 on mine

205/40x17 on mine speedo is a little out so when i need new tyres will prob go for 215/40x17 ,should bring speedo reading into line then i hope

205/40x17 on mine speedo is a little out so when i need new tyres will prob go for 215/40x17 ,should bring speedo reading into line then i hope

if you go from a 205 to a 215 tyre it will have no impact whatsoever on your speedo. you would need to change the height of the tyre ie from 40 to 45 to alter the speedo.

mrlee the 40 or 45 or whatever is the profile not the height...e.g. in a 215/40/17 tyre (which, incidentally, is the *correct* tyre size for normal-width 17s on an e30, to keep the speedo accurate) the height of the sidewall is 40% of 215mm, i.e. 86mm.

So yes increasing the profile will increase the sidewall height, but so will increasing the width but keeping the same profile.

http://www.e30zone.co.uk/modules.php?na ... link&cid=8

Bottom link gives you an excel document to work out wheel sizes and speed, it won't tell you if it's goin a rub but usefull all the same

Aron that is some cool car controll in your advatar ;)

I just had to put 205/40/17 tyres instead of 215 profile. My 215/40/17 were rubbing just on the front at full lock and the rears were rubbing in the arches whenever i accelerated hard or had passengers. I am running 35mm lowering springs all round on standard shocks so maybe with harder shocks you'd be ok. I have no rubbing problems now with my 205/40/17 on alpina reps and i reckon the fraction i have lost off the side wall by going to a 205 looks a lot better too

TINSNIPS wrote:205/40x17 on mine speedo is a little out so when i need new tyres will prob go for 215/40x17 ,should bring speedo reading into line then i hope

a whopping 1.8% difference over standard m8.
when speedo reads 60 ur doing 59. (plus whatever normal e30 speedo is out by)