et30 square setup on F32?

fortythirtyfive · 06-02-2021, 06:59 PM

I don't seem to be getting anywhere with working out my offsets so apologise if this is seen as spam..

I'm wanting to run the following setup:

235/35/20 8.5 et30 front
255/30/20 8.5 et30 rear

Does anyone see any issue with this setup? I plan on getting Eibach pro kit springs in a few months too so a slight drop will be happening.

DLag30 · 06-05-2021, 12:26 AM

I think you'll be fine with those spec. I've seen people run 9" wide with et30 and were ok.

fortythirtyfive · 06-06-2021, 10:54 AM

Quote:

Originally Posted by DLag30

I think you'll be fine with those spec. I've seen people run 9" wide with et30 and were ok.

thank you - I'm going to bite the bullet and just order the new setup, HRE don't recommend it but I'm going to put it down to them not having the chance to trying it

alohasurftoad · 06-06-2021, 11:24 AM

with staggered tire sizes, have you considered staggered rim widths?

i'd go 235/35/20 & 265/30/20(or 275/30/20) on 20x8.5 ET30 & 20x9.5(or10") ET42ish.

here is a thread with 20"...https://f30.bimmerpost.com/forums/sh....php?t=1047084

FYI HRE 20x8.5 ET30 will be flat face and no concavity, but if you don't care or that's what you prefer and you've already ordered it, post pics after you get them.
.

Logicoeur · 06-06-2021, 11:27 AM

Not sure I understand the purpose of going staggered if the et is the same. You can't tell the wheels are wider than the from from the rear. And there's no concavity with this setup. Seems to just be a headache as you can't rotate tires correctly. Are you big turbo looking for grip?

fortythirtyfive · 06-07-2021, 08:14 AM

Quote:

Originally Posted by Logicoeur

Not sure I understand the purpose of going staggered if the et is the same. You can't tell the wheels are wider than the from from the rear. And there's no concavity with this setup. Seems to just be a headache as you can't rotate tires correctly. Are you big turbo looking for grip?

It's more so that I can keep the existing tyres as I shelled out £890 around 2 months ago 😩

Stock turbo

alohasurftoad · 06-07-2021, 10:35 AM

Quote:

Originally Posted by fortythirtyfive

It's more so that I can keep the existing tyres as I shelled out £890 around 2 months ago ��

Id get 9.5" ET42(or 10" ET40) rears and use the 255, it'll be stretched out of spec on 10", though. Or get 265/30/20(or 275/30/20) and sell the 255 to recoup some cost.

But if you're happy with four fronts(no concave), i'm happy.
.

06-02-2021, 06:59 PM	#1
fortythirtyfive Major 640 Rep 1,381 Posts Drives: 435i MS Join Date: Sep 2016 Location: North iTrader: (0)	et30 square setup on F32? I don't seem to be getting anywhere with working out my offsets so apologise if this is seen as spam.. I'm wanting to run the following setup: 235/35/20 8.5 et30 front 255/30/20 8.5 et30 rear Does anyone see any issue with this setup? I plan on getting Eibach pro kit springs in a few months too so a slight drop will be happening. __________________ 2015 435i - 401whp Scorpion catless dp, VRSF 6.5" HD FMIC, MST V2 inlet, NGK 97506, MHD Stage 2+ 102, xHP Stage 3, M Performance Exhaust (modified for valved straight thru)
	Appreciate 0 Tweet Quote

06-05-2021, 12:26 AM	#2
DLag30 Second Lieutenant 104 Rep 246 Posts Drives: F80M3 & F36 Join Date: Aug 2013 Location: 94080 iTrader: (2)	I think you'll be fine with those spec. I've seen people run 9" wide with et30 and were ok.
	Appreciate 1 fortythirtyfive639.50 Quote

06-06-2021, 11:24 AM	#4
alohasurftoad Brigadier General 3077 Rep 4,322 Posts Drives: 440i gran coupe w/mppsk Join Date: Apr 2015 Location: hawaii iTrader: (0)	with staggered tire sizes, have you considered staggered rim widths? i'd go 235/35/20 & 265/30/20(or 275/30/20) on 20x8.5 ET30 & 20x9.5(or10") ET42ish. here is a thread with 20"...https://f30.bimmerpost.com/forums/sh....php?t=1047084 FYI HRE 20x8.5 ET30 will be flat face and no concavity, but if you don't care or that's what you prefer and you've already ordered it, post pics after you get them. . Last edited by alohasurftoad; 06-06-2021 at 11:47 AM..
	Appreciate 0 Quote

06-06-2021, 11:27 AM	#5
Logicoeur Lieutenant Colonel 990 Rep 1,934 Posts Drives: F30 335i xDrive Join Date: Feb 2018 Location: Boston iTrader: (0)	Not sure I understand the purpose of going staggered if the et is the same. You can't tell the wheels are wider than the from from the rear. And there's no concavity with this setup. Seems to just be a headache as you can't rotate tires correctly. Are you big turbo looking for grip? __________________ F30 335iX \| Remus Axleback \| Fabspeed Catted DP \| VRSF Comp IC \| 18X9 ET35 19lb MT1 \| 255/40/18 ECS \| Ohlins RT Millway Street \| Millway Control Arm Bushings \| Turner Endlinks \| TMH 75mm 14x1.5 Studs \| BMW MPerf LSD \| XDelete \| Pipercross Filter \| MHD Stg2 93
	Appreciate 1 alohasurftoad3076.50 Quote