widest tyres/rims under stock e30 arches?

[Jhonno]

Whats the widest rims/tyres you can get under stock e30 arches? maybe with a little persuasion with an angle grinder/hammer..

[Jhonno]

forgot to mention.. its using m3 suspension/brake setup.

[bootyman]

The widest rims i've got on a normal E-30 was my Brock C1's. They were 16x9j running 225/40/16 or you could go 225/35/16. The widest rims i got on my M3 was 10x17 rears and 9x17 fronts. The fronts running 225/35/17 and the rears were 245/35/17 i think

[Jhonno]

cheers dude

I am looking at running 8/9x17's... i'll use some 215/45/17 tyres for now n see how much room i got after..

[bootyman]

45 profile is quiet high. Especially with 17" wheels. If you were running 16's, then i'd say "Yeah maybe" but i'm not sure now. Normally, the bigger your wheels, the lower profiles you will have to go on the tyres. Good luck anyway

[Jhonno]

45 profile is quiet high. Especially with 17" wheels. If you were running 16's, then i'd say "Yeah maybe" but i'm not sure now. Normally, the bigger your wheels, the lower profiles you will have to go on the tyres. Good luck anyway

i've got a wheel size calculator thingamy on my laptop

215/40's are slightly smaller than original diameter

215/45's are slightly bigger...

Im goin with the slightly bigger to get a slightly better ride - nothing in it for price

[bootyman]

Most of your ride quality will come from your suspension setting though and not your tyre profile. I'm running 275/35/18's on my rears at the mo and the quality of my ride is lovely because of my coil-over settings. I use to run 315/40/17's last years and you cant tell the difference

[Guest]

I am running 225/45-16zr Toyo T1r's on the back with huge clearance and dropped 35mm. I do have the wrong offset ie 40 and have posted a question about this-hope this helps , The wheels would suit the car better if I take them out but proper spacers are going to cost a fortune.

[Simon13]

the widest without spacers and mods in my mind would be 7.5 front and 8 rear in the correct offset

[Simon13]

the widest without spacers and mods in my mind would be 7.5 front and 8 rear in the correct offset

[Jhonno]

the widest without spacers and mods in my mind would be 7.5 front and 8 rear in the correct offset

what tyre size dude?

[Jos]

8" is 203mm so I would say 215-245 would be about the right size.

[gareth]

i'm running 7.5j17 bk 171's with odd offsets and am having scrubbing problems.
i have:
215/45/17's on ET20 (with a 3mm spacer) on the front. -60mm ish. scrubs the arches and the arch liner.
225/45/17's on ET38 on the rear. -40mm ish. scrubs the inner arches and arch lips even after modification.

that said, i think the offssets on my wheels are a little out of the ordinary!

hth

[Simon13]

proper size for 7.5 is 215 width and for 8 is 225 matey. any other they are lying!!!

[TOURINGDADDY]

couple months ago i fitted a set of 19" rims with 225/35/19 on em that e30 was lowerd by 40mm and nothing touched

[nikos]

Specification Sidewall Radius Diameter Circumference Revs/Mile Difference
205/55-15 4.4in 11.9in 23.9in 75.0in 845 0.0%
205/50-16 4.0in 12.0in 24.1in 75.6in 838 0.8%

Specification Sidewall Radius Diameter Circumference Revs/Mile Difference
205/55-15 4.4in 11.9in 23.9in 75.0in 845 0.0%
205/45-17 3.6in 12.1in 24.3in 76.2in 831 1.6%

Specification Sidewall Radius Diameter Circumference Revs/Mile Difference
205/55-15 4.4in 11.9in 23.9in 75.0in 845 0.0%
225/40-17 3.5in 12.0in 24.1in 75.7in 837 0.9%

Specification Sidewall Radius Diameter Circumference Revs/Mile Difference
205/50-16 4.0in 12.0in 24.1in 75.6in 838 0.0%
225/45-16 4.0in 12.0in 24.0in 75.3in 841 -0.4%

Specification Sidewall Radius Diameter Circumference Revs/Mile Difference
205/45-17 3.6in 12.1in 24.3in 76.2in 831 0.0%
225/40-17 3.5in 12.0in 24.1in 75.7in 837 -0.7%

Specification Sidewall Radius Diameter Circumference Revs/Mile Difference
205/45-17 3.6in 12.1in 24.3in 76.2in 831 0.0%
235/40-17 3.7in 12.2in 24.4in 76.7in 827 0.6%

Specification Sidewall Radius Diameter Circumference Revs/Mile Difference
205/55-15 4.4in 11.9in 23.9in 75.0in 845 0.0%
215/40-17 3.4in 11.9in 23.8in 74.7in 848 -0.4%

[Batch]

Here are pics of my mate's 325i with 215/40 on j9R16 rims. The suspention is also lowered 60mm





So far minimal problems - only a work for the angle grinder.
Looks like pure german style

[bimmer_adam69]

i love it wered you get the m tech 2 kit??

[Andy325i]

cheers dude

I am looking at running 8/9x17's... i'll use some 215/45/17 tyres for now n see how much room i got after..

On my E30 (lowered 30mm) I could run 215/40/17" no problem
tried 205/45/17" and these rubbed like a bitch lol

[TW166Y]

im dropping my 325i sport on tuesday 60mm with a spax package top adjustables, do you think ill be ok with 215/40/17's? sorry to jump in on the post but nobody had really helped up to yet, nice motors by the way (all ov the above)

[nikos]

from my research the conclusion is that allthough two tyres have the same dimension lets say 205/55-15, the two dimensions 55 and 15 on all brands is the same but the third can differ from brand to brand. Thats why a certain tyre can be fitted and the other not. Anyway I heard noboby complain with the 215/40-17 dimension, problem should arise with the 205 /45-17, other tyres will fit and other not. My car is still in the garage so I have not changed tyres yet, but have a look on the lenso eagle rim which is 16'' and has the correct ET

[e30_Turbo]

I'm running 215/40/17's on 7.5 x 17 Azevs with no probs at all. Car is lowered by 40mm. Having had 205/40/17's before, I will stick with the 215's from now.
Thankgod for all the negative camber at the rear tho, if the wheels were straight I doubt they'd go under the rear arches at all.
Will be dropping the front to by 60mm soon, but I have no worries that will work, plenty of space up front

[kieron]

hey thought i would tag this on to the above thread as it is kind of similar. Just thinking of getting some borbet a's and was wondering if the 16x9 fit on the back with out any mods? I was planning on having the 16x7.5's on the front and so i assume that these need no mods?

thanks
kieron

[e30_Turbo]

I now run 7x16's front and 9x16's rear, so yes they will fit, just get the right offset!

Fronts are 205/45/16 and rears 215/45/16.

HTH, Mark.

[Gunni]

255/40-17 is about the biggest in the back

[DaveD]

I have 225 50 15 on the back and they rub ..just

[oze30]

17x8 with 215 40 17 and 17x9 with 225 40 17 will fit with a bit of moderate beating.
I'm running 17x9.5 with 235 40 17's and they do rub, but only if you drop it on the ass.

You still want 17x8/9's?

[Gunni]

for 255/40-17 on "17x10 you will need proper rolling and little flaring maybe, as well as stiff suspension and proper offsett.
something in the region of ET15 will work.

[kam325itouring]

im gonna be putting 7.5s on the front and 8.5s on the back (e36 328 sport rims) tyres will be 215/40/17 front and 225/35/17 on the back and hope they go on!!!!!! oh on a touring hopefully they will be done for the summer, i dont know to go for white centres or anthracite???? on a white car.

[oze30]

What 5 stud are you running

[kieron]

hey just to go back to the borbets for a sec

is et20 for the 7.5s and et15 for the 9s the right ones?

how much are the tyres for these? Ive just found some for sale near to me without tyres

cheers kieron

[kieron]

also do you need to widen the rear arches at all?

thanks again
kieron

[oze30]

Depends on what tyres you want mate. offset should be et15 front, 20 rear. you might need to roll your arches, but it depends on your drop, your bushes, driving style, lip/dish
etc etc etc.

[kam325itouring]

i found a guy up north who can make custom adaptors!!!! he makes them for drift cars, does them for 200 for the set delivered. the e36 rims are 41et gonna get 22mm adaptors made which will bring the et down to 19 which should be ok!

[rkettner]

my 17x8.5" with 245/40 rubbers rub like hell on the wheel well in the back. on the sindei and the outside. when i use 225 rubber on a 7.5 inch rim they don't rub.

that is with a 1.9l z3 suspension setup for 5 bolt.