Installed Ohlins coilovers - need advice for wheel clearance/rubbing

[thetyrant]

Originally Posted by HP Autosport

I think your best bet is to run a shorter 7" front spring so that lower spring perch can be moved up as far as possible. That will eliminate the need to use any wheels spacers. If I recall, nearly all 1 series that came through our shop had aftermarket wheels with wider tires so none use the Ohlins 8" springs.

Maybe someone with a similar setup can chime in?

Thanks, I was hoping as your selling the kits you would of had the info for fitment on stock setup so people buying know if its going to fit, guess problem is as you say most coming in have other non-standard parts

Hopefully someone who has tried it with stock wheels/topmounts etc will pop along soon , ive ordered the kit so I guess we will see soon if I need to fit spacers or shorter spring etc and will update this thread for others wondering, reading Fe1rx's long thread again it looks like I will need wheels spacers on supplied springs but will get details once I have it all on car.

Ian

[HP Autosport]

Originally Posted by thetyrant

Thanks, I was hoping as your selling the kits you would of had the info for fitment on stock setup so people buying know if its going to fit, guess problem is as you say most coming in have other non-standard parts

Hopefully someone who has tried it with stock wheels/topmounts etc will pop along soon , ive ordered the kit so I guess we will see soon if I need to fit spacers or shorter spring etc and will update this thread for others wondering, reading Fe1rx's long thread again it looks like I will need wheels spacers on supplied springs but will get details once I have it all on car.

Ian

If you have OEM wheels with OEM tire(I think the front is a 215 from the factory), there is not a problem. Since not every tire has the same sectional width even though it's the same size tire, I can't say for sure your 225/40 will clear.

[thetyrant]

Originally Posted by HP Autosport

If you have OEM wheels with OEM tire(I think the front is a 215 from the factory), there is not a problem. Since not every tire has the same sectional width even though it's the same size tire, I can't say for sure your 225/40 will clear.

From what ive seen 215 or 225 on oem wheels it wont clear due to the wheel offset, I have oem wheels with both size tyres so will be able to see for sure once kit arrives and can let you know so you can advise customers asking.

Ian

[HP Autosport]

Originally Posted by thetyrant

From what ive seen 215 or 225 on oem wheels it wont clear due to the wheel offset, I have oem wheels with both size tyres so will be able to see for sure once kit arrives and can let you know so you can advise customers asking.

Ian

Yes, that would be great to know for those running OEM wheels and tires.

[thetyrant]

Ok will my Ohlins kit has just arrived so i should be able to answer my question over the weekend

Ian

[thetyrant]

Quick update for those searching.

Fitted the Ohlins kit with new stock top mounts onto my 2010 n55 135i, set the spring collars as per Ohlins instruction as start point (3mm preload) and bolted it all on.

Tried my wheels for clearance and I can confirm that with my 225/40-18 Uniroyal Rainsport3 tyres on stock 261m wheels the tyre JUST rubs on the spring collars!... used a 3mm slip on spacer and this gave clearance so ideal for these wheels tyres, I suspect with stock 215/40 tyres you "might" get away without the spacers, but will depend on brand of tyres as some are chunkier/squarer than others, see below.

I dug out spare stock fitment wheels which I thought had stock 215/40 tyres on but they are 225/40-18 as well and this time Federal 595RSR which are a bit chunkier, they wont go on with the 3mm spacers so I will need to dig out my 12mm hubcentric spacers to run those, I suspect I may get some arch/bumper contact with those wheels as I that's why I removed the 12mm spacers previously after fitting the M3 lower control arms which pushes wheel out as well.

Also ride height was a little low for me on stock collar position (approx. 330mm wheel centre to arch) so I wound the collars up a little to raise it 5mm which improves the tyre/collar clearance as well.

Short story for those looking, stock 215/40 rubber on stock wheels and top mounts etc should clear without spacers, if chunky/wide section tyres then spacers maybe required.

Hope this helps anyone looking.

Ian

[Gangplank]

So if I'm running this set up currently:
*Stock BMW 264 wheels with
*225/40 & 255/35 Michelin Pilot Super Sport
*BMW top hats
*M3 control arms

The MPSS 225/40/18's run a bit wider similar to the Fedral 595RSRs (internet shows they both have 9.1" section width. I order the 7" front springs and it clears.

[Gangplank]

Originally Posted by HP Autosport

Yes, that would be great to know for those running OEM wheels and tires.

Harold I'll give you a call later today.

[HP Autosport]

Originally Posted by Gangplank

Harold I'll give you a call later today. It sounds like I need to add some parts here to the kit I ordered. I'm looking to get this figured out before I do the install - Do it once, do it right.

We just spoke on the phone.

Let me know if you have other questions.