Steering Ratio?

vwrefugee · 04-14-2011, 05:03 PM

Anyone know how many turns lock-to-lock the 1er has? The 1M is said to have a quick steering ratio with 2.2 turns and I wonder if a swap may be possible?

UsualSuspect · 06-21-2011, 09:39 PM

Quote:

Originally Posted by vwrefugee

Anyone know how many turns lock-to-lock the 1er has? The 1M is said to have a quick steering ratio with 2.2 turns and I wonder if a swap may be possible?

I was just wondering the same thing. I found it...Turns lock-to-lock 2.9.

Focusedintntions · 06-21-2011, 09:41 PM

you'd need to swap the steering rack...and maybe the pump too.

Tom K. · 06-22-2011, 10:49 AM

Quote:

Originally Posted by Focusedintntions

you'd need to swap the steering rack...and maybe the pump too.

The variable ratio Active Steering in my 328i wagon feels like about a 15% quicker ratio at very slow speeds (aids parking and slow corners) and perhaps 10~15% slower at 75 mph - making the car very stable on the interstate.

All other things being equal, I'd think that the 25% ratio reduction contemplated by the OP would make the car pretty twitchy at highway speeds - especially in a crosswind!

Tom

GeeRam · 06-22-2011, 02:54 PM

Quote:

Originally Posted by UsualSuspect

I was just wondering the same thing. I found it...Turns lock-to-lock 2.9.

I've seen data quoting 2.7 lock to lock for the 135i as well.....??

Cuz5150 · 06-22-2011, 06:10 PM

Hmm...135i-2.7 /2.9 vs 2.2-1M. If this is the case, this is very minimal. I would have to drive a 1M and see first hand. "If" its THAT much better..........then i would hit the salvage yards and pick one up from an M3 for $100.(im guessing its the same rack)

UsualSuspect · 06-22-2011, 07:05 PM

Quote:

Originally Posted by GeeRam

I've seen data quoting 2.7 lock to lock for the 135i as well.....??

Well I'm not sure...here's what motortrend has listed: http://www.motortrend.com/roadtests/...fications.html

GeeRam · 06-23-2011, 03:26 PM

Quote:

Originally Posted by UsualSuspect

Well I'm not sure...here's what motortrend has listed: http://www.motortrend.com/roadtests/...fications.html

Nor am I

Car and Driver lists it as 2.7 on this data sheet.

http://www.caranddriver.com/var/ezfl...ca2d716237.pdf

GotM · 06-23-2011, 07:31 PM

I put mine lock to lock and I thought it appeared 2.75.

04-14-2011, 05:03 PM	#1
vwrefugee Private First Class 17 Rep 126 Posts Drives: 2011 BMW 135i 6MT Join Date: Jul 2010 Location: Canada iTrader: (0)	Steering Ratio? Anyone know how many turns lock-to-lock the 1er has? The 1M is said to have a quick steering ratio with 2.2 turns and I wonder if a swap may be possible?
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06-21-2011, 09:41 PM	#3
Focusedintntions Colonel 105 Rep 2,696 Posts Drives: 2011 135i M-Sport :D Join Date: Nov 2010 Location: NoVA iTrader: (1)	you'd need to swap the steering rack...and maybe the pump too. __________________ Faster, faster, faster, until the thrill of speed overcomes the fear of death… – Hunter Thompson
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06-22-2011, 06:10 PM	#6
Cuz5150 Major 215 Rep 1,489 Posts Drives: 06-M3ZHP/04-M3 Vert/02Duc998 Join Date: May 2008 Location: NJ iTrader: (0)	Hmm...135i-2.7 /2.9 vs 2.2-1M. If this is the case, this is very minimal. I would have to drive a 1M and see first hand. "If" its THAT much better..........then i would hit the salvage yards and pick one up from an M3 for $100.(im guessing its the same rack) __________________ -Diplomacy is saying, "nice doggie while trying to find a rock"- 07-Z4 coupe-Black/Black/6MT/sport/premium/X 04-M3 vert-Black/Imolla/6MT/Cold/Xenon/HK/ 06-M3 Coupe-Mystic/Black/6MT/ZCP/Xenon/HK/ 09-135i- AW/Bk-Lette/6MT/M-pac/Nav/Hi-Fi/Usb-Ipod/SOLD
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06-23-2011, 07:31 PM	#9
GotM Second Lieutenant 7 Rep 232 Posts Drives: 2013 Subaru BRZ 6MT Join Date: Oct 2009 Location: Chandler, AZ iTrader: (0)	I put mine lock to lock and I thought it appeared 2.75. __________________ 13 Subaru BRZ, WR Blue, 6M 09 BMW135i, Alpine White, Sport, 6M - sold 99 BMW M roadster, Estoril Blue - sold
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