One crazy idea : reducing steering wheel reduction ratio

S

Shooter

Member
 Paris
OK, here's one crazy thought.
IMHO, the steering wheel reduction ratio is too great. This has nothing to do with the feeling of the power steering.
You have to give the steering wheel too much angle to turn. It's not particulary annoying in everyday drive, but on the track, i think it's a bit frustrating at times.
So, what would someone has to do in order to "reduce the reduction ratio" (or increase it, i don't really know exactly in what direcion you have to look... :p) ?
For example, now, i have to do 4 (or so...) complete circles to go from full left to full right, i would like to do only 3 circles (one and a half in each direction).
I am aware that this would probably lead to a greater effort on the power streeing...

Any thought ?
 
You'd need to change the ratio of the steering rack somehow, by fitting a new one presumably?

:idunno:
 
A smaller wheel wouldn't decrease the amount of turns (obviously), but would increase the speed somewhat...
 
135 has this "active steering"... Slower speeds, smaller ratio (less turns). I wonder how they do it.

Although MCoupes have smaller ratio than M Roadsters, I'd still like to have even smaller ratio. Let us know if you find a way!
 
How about fitting a steering knob - that'll make it turn quite fast?

Not a disabled style one, but maybe something a bit more stylish...
16258.jpg
 
mmm-five said:
How about fitting a steering knob - that'll make it turn quite fast?

Not a disabled style one, but maybe something a bit more stylish...
Click to expand...
Seriously steering knobs... :thumbsdown:
I'm all for if you're disabled, but not for decoration, they destroy the sexyness of the console on any car. Especially how plain the Z4 is, which imo is smooth. 8)
 
Just as Mike says you simply need to change the rack and pinion for one that works on a different ratio.

Typically non power steered cars were even worst as they used a real low ratio such that it was say 5 turns lock to lock to make it easier to turn, while powered set up dropped it to much less.
 
I don't know if you'd much notice the difference, but you could try an M Coupe rack. The ratio is 14.5:1, while the M Roadster and non-Ms are 15.4:1, iirc.
 
is that really true? why would the M coupe have different ratio to the M Roadster?
 
Andy said:
is that really true? why would the M coupe have different ratio to the M Roadster?
Click to expand...

Supposedly it was felt the coupe's stiffer chassis could handle sharper steering response. From Car Magazine's First Drives:
The tin roof adds 5kg, but the Coupé matches the Roadster's 5.0sec 0-62mph time. The stiffer shell has also enabled the M division's white coats to quicken the steering ratio, and the spring and damper settings are different. Basically it feels much sharper to drive.
Click to expand...

It's equally likely that we got them because they had a bunch sitting around after they stopped making E46 M3 CSLs. :roll:
 
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