Max spacer size for stock bolts and 18" wheels?

M3to335 · 02-05-2008, 08:56 PM

I have access to a watejet and wanted to cut some small spacers to push the stockers out a bit on track day. After rolling the fenders, it just looks retarded.

Just by looking, it seems like there isnt a lot of room "thread wise" to put out the stock wheels. Does anyone have first hand experience putting spacers in the front or rear on stock 18s with stock bolts.

I was guessing 5mm in the rear and 2~3 in the front.

Thanks

MWcoupe · 02-05-2008, 08:59 PM

go for the rouge 15mm. i have them on my stock 162.

M3to335 · 02-05-2008, 09:05 PM

Quote:

Originally Posted by alpine330

go for the rouge 15mm. i have them on my stock 162.

Sorry, I guess I need to re-write my question. Im not buying anything. I only have 3 days to make this happen.

Im going to waterjet (make my own) "small" spacers for the rear and hopefully front as well. I want to use the stock bolts on the stock wheels. Obviously my limitation is the amount of adequate thread that goes into the hub.

Using the calipers the rears have about 12.6mm of thread engagement standard. Id assume I could add about 5mm and still hold proper torque and not overstress the hardware. For the fronts, its a little shady. They appear to have a little less engagement to begin with, so I may not mess with them.

M3to335 · 02-06-2008, 11:57 AM

Bump?

HRC · 02-06-2008, 12:34 PM

If you use any type of spacer, I would NOT use the OEM bolts. They are only designed for that particular offset. If you use a 5mm spacer, get bolts that are 5mm longer than OEM.

Danny

M3to335 · 02-06-2008, 03:22 PM

Typically I would agree with you. What sparked this idea (and what throws me off) is the fact that the front wheel bolts are making much less engagement then the rears. In other words, the rear bolts catch more thread. I was hoping I could put the rears out at the same amount of thread engagement as the fronts.

I guess I will pass on this for now. Where can I pick up longer bolts (and what size/type are the bolts currently?

Thanks

BMW F22 · 02-06-2008, 03:49 PM

The stock bolts are 120mm long. You can try Ebay or your local tire shop. The longer lug bolts are usually an option when you buy spacers though.

M3to335 · 02-06-2008, 07:30 PM

Cool, thanks.

Is that 14x1.25 @ 120mm long?

nagge · 02-07-2008, 03:36 AM

Quote:

Originally Posted by M3to335

Cool, thanks.

Is that 14x1.25 @ 120mm long?

No, M12x1,5. Thread is 25mm long and the bolt all together is 50mm long. Thats the info I got from a BMW-tech anyways.

M3to335 · 02-07-2008, 06:04 AM

Hehe, I was just being an ass about the 120 long thing.

Thanks guys.

02-05-2008, 08:56 PM	#1
M3to335 Whats that smell? 145 Rep 1,790 Posts Drives: Bimmers, duh Join Date: Nov 2006 Location: NC iTrader: (6)	Max spacer size for stock bolts and 18" wheels? I have access to a watejet and wanted to cut some small spacers to push the stockers out a bit on track day. After rolling the fenders, it just looks retarded. Just by looking, it seems like there isnt a lot of room "thread wise" to put out the stock wheels. Does anyone have first hand experience putting spacers in the front or rear on stock 18s with stock bolts. I was guessing 5mm in the rear and 2~3 in the front. Thanks
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02-05-2008, 08:59 PM	#2
MWcoupe 24k GOLD 148 Rep 1,453 Posts Drives: Mineral White M4 Join Date: Jul 2006 Location: BROOKLYN NY iTrader: (0)	go for the rouge 15mm. i have them on my stock 162.
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02-06-2008, 11:57 AM	#4
M3to335 Whats that smell? 145 Rep 1,790 Posts Drives: Bimmers, duh Join Date: Nov 2006 Location: NC iTrader: (6)	Bump?
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02-06-2008, 12:34 PM	#5
HRC MAUI BUILT 485 Rep 7,781 Posts Drives: 2006 330i MT Join Date: Jun 2005 Location: NORCAL iTrader: (10) Garage List 2002 E46 325i [0.00] 2012 E70 35i [0.00]	If you use any type of spacer, I would NOT use the OEM bolts. They are only designed for that particular offset. If you use a 5mm spacer, get bolts that are 5mm longer than OEM. Danny __________________ Arctic/Blk Leather/Alum.Trim/MT/ZSP/Sunshades/Blk Lines/M3 Illuminated Knob/Alcantara Performance Wheel/M-E-Brake Handle/Euro Fog Switch/Koni Yellows/H&R Sport Springs/19" VMR V718's w/PS2 Tires/M-Tech Body Kit/Carbon Fiber Spoiler/Bimmian Interior Bulbs/OEM Eye Glass Tray/SSK/Alcantara Boot/Split Armrest/OEM Dual Rear Power Outlets/Rear Ashtray Delete/OEM Alum. Pedals/Osram 6000K/Brex Rings/LED Side Markers/BMS Power Box
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02-06-2008, 03:22 PM	#6
M3to335 Whats that smell? 145 Rep 1,790 Posts Drives: Bimmers, duh Join Date: Nov 2006 Location: NC iTrader: (6)	Typically I would agree with you. What sparked this idea (and what throws me off) is the fact that the front wheel bolts are making much less engagement then the rears. In other words, the rear bolts catch more thread. I was hoping I could put the rears out at the same amount of thread engagement as the fronts. I guess I will pass on this for now. Where can I pick up longer bolts (and what size/type are the bolts currently? Thanks
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02-06-2008, 03:49 PM	#7
BMW F22 Major General 3566 Rep 9,788 Posts Drives: ///M235i Join Date: Nov 2005 Location: Bay Area iTrader: (8)	The stock bolts are 120mm long. You can try Ebay or your local tire shop. The longer lug bolts are usually an option when you buy spacers though.
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02-06-2008, 07:30 PM	#8
M3to335 Whats that smell? 145 Rep 1,790 Posts Drives: Bimmers, duh Join Date: Nov 2006 Location: NC iTrader: (6)	Cool, thanks. Is that 14x1.25 @ 120mm long?
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02-07-2008, 06:04 AM	#10
M3to335 Whats that smell? 145 Rep 1,790 Posts Drives: Bimmers, duh Join Date: Nov 2006 Location: NC iTrader: (6)	Hehe, I was just being an ass about the 120 long thing. Thanks guys.
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