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madandy

UPgrading wheels on 328i sedan

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Anyone recognise this wheel model? Or offer an opinion about the look.

Quite like the look but unsure how they'd look on our Arctic Silver E36. The tyres are useless to us as we'd run the BMW recommended 235/40R17 tyres so would have to sell the tyres, as well as the factory wheels & tyres our car already has.

and then there's these

Not sure about using an 18" on an E36. If an M3 ran 17's who am I to go bigger on a 328i sedan?!

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I had a look at those M3 wheels but they're not my favourite M wheel - I think I like the wheels on the 3L better. They'd be best on a properly staggered set up and I've got the feeling I'd need some suspension mods to make that work properly too.

What do ya think of those wheels in my first post? Kinda on a budget here ;)

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Good spotting. They do look good. Not too flashy. I'm concerned about the profile - I mean 235/35R18 is what we'd have to run & is that sort of liquorice onna work well with the stock suspension? Have 265's on the 'R' and the price for the extra low sub 40 series tyres is scary! ( no Nankangs for this kid)

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After looking around at a fair few 18" rims and running tyre size calculators it looks like a 17" rim is goiung to be wise using a 235/40R17 tyre. The 18's rock but I either have to use 245's or 225's to get a good diameter match.

And words of wisdom re: staggered set up my on standard suspnsion?

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I use 18' wheels with 225/40/18. IMO I think thats ok but possibly too much grip for the car (auto). Should be ok for a manual.

Cheers.

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I've got the third pedal at least...

I don't wish to make any wholseale changes to the suspension or make significant power up mods to the engine (yeah right, maybe intake & exhaust) as I'm building a track car & have just about finished an RB26DETT re-build (ouch) so this 328 is really a cruiser with some sporting pedigree...if ya push hard ya slide around on the leather!

I'm struggling with tyre sizes though:

Specification..Sidewall..Radius..Diameter..Circumference..Revs/Mile..Difference

205/60-15........4.8in....12.3in....24.7in.........77.6in.............817.........0.0% - this is what we've got.

225/45-17........4.0in....12.5in....25.0in.........78.5in.............808.........1.2% - as suggested.

235/40-17........3.7in....12.2in....24.4in.........76.7in.............827........-1.1% - this is BMW size recommended

245/40-17........3.9in....12.4in....24.7in.........77.6in.............816.........0.1% - very close diameter but pretty fat.

225/35-18........3.1in....12.1in....24.2in.........76.0in.............833........-2.0% - bit small on diameter

225/40-18........3.5in....12.5in....25.1in.........78.8in.............804.........1.6% - bit big on diameter

235/40-18........3.7in....12.7in....25.4in.........79.8in.............794.........2.9% - ^^ +tyre shop recommended LOL.

235/35-18........3.2in....12.2in....24.5in.........76.9in.............814........-0.8% - not a bad match but don't exist!

245/35-18........3.4in....12.4in....24.8in.........77.8in.............815.........0.3% - good match on diameter

Edited by madandy

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I've got the third pedal at least...

I don't wish to make any wholseale changes to the suspension or make significant power up mods to the engine (yeah right, maybe intake & exhaust) as I'm building a track car & have just about finished an RB26DETT re-build (ouch) so this 328 is really a cruiser with some sporting pedigree...if ya push hard ya slide around on the leather!

I'm struggling with tyre sizes though:

Specification..Sidewall..Radius..Diameter..Circumference..Revs/Mile..Difference

205/60-15........4.8in....12.3in....24.7in.........77.6in.............817.........0.0% - this is what we've got.

235/40-17........3.7in....12.2in....24.4in.........76.7in.............827........-1.1% - this is BMW size recommended

245/40-17........3.9in....12.4in....24.7in.........77.6in.............816.........0.1% - very close diameter but pretty fat.

225/35-18........3.1in....12.1in....24.2in.........76.0in.............833........-2.0% - bit small on diameter

225/40-18........3.5in....12.5in....25.1in.........78.8in.............804.........1.6% - bit big on diameter

235/40-18........3.7in....12.7in....25.4in.........79.8in.............794.........2.9% - ^^ +tyre shop recommended LOL.

235/35-18........3.2in....12.2in....24.5in.........76.9in.............814........-0.8% - not a bad match but don't exist!

245/35-18........3.4in....12.4in....24.8in.........77.8in.............815.........0.3% - good match on diameter

You haven't got 225/45-17 which is also close but a bit over, this is the size I would go for as tyres are cheaper due to a large portion of the 17 tyre market uses this size (OE & Aftermarket), no fitment issues & suit most rims widths you will be looking at (7.5"-8.5").

Nothing fat about 245/40's I run them front & rear, a 8" wide rim is typically the narrowest they are spec'd for.

Tyre places recommend 235/40-18's because thats what they put on every other falcon & commodore, they would also try telling you 235/45-17's aren't much bigger than 40's LOL yeah right, with the later commanding a higher price than the same tyre in a 45 profile.

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I hadn't included the 225/45-17 because the 235/40-17 is a BMW recommended size on 17" rim.

Problem I have, and haven't explained is that Sharon my partner has taken a liking to a couple of 18" rim designs otherwise I'd be happy with a 17" Msport wheel wearing the 235/40-17 lol

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I hadn't included the 225/45-17 because the 235/40-17 is a BMW recommended size on 17" rim.

Problem I have, and haven't explained is that Sharon my partner has taken a liking to a couple of 18" rim designs otherwise I'd be happy with a 17" Msport wheel wearing the 235/40-17 lol

So is the 225/45-17 it is what comes on the front of the E36 M3 EVO's, and most E46's spec'd with 17" wheels.

In the 18" case its either the 225/40 or 245/35 then isn't it.

Both of which will work on a 8" wide rim (the typical aftermarket wheel width).

Wouldn't be my choice & doesn't sound like yours either LOL

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235/40R17's it is. Her indoors has found a 17" rim she likes thank the stars.

Good girl even had a chat to Julian at BMAutobahn about an exhaust alteration :)

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