steering racks which are the same?

[Welleh]

hi, was wondering if the steering racks of the 7a coupe`s or the v6 coupe`s are the same as a std s2 coupe!
anyone know! last owner put atf in it and its forked now!

[mcandmar]

Yes they are different, this is what i managed to find on the net, S2 is an ABY as most 3B's had the servotronic steering. I have an ABY rack for mine but havent had a chance to check the difference in ratio etc.

7A CQ 20v

Turns (lock-to-lock): 3.2
Turning circle (curb-to-curb): 36.4'/11.1m
Ratio: 16.8:1

S2 ABY

Turns (lock-to-lock): ??
Turning circle (curb-to-curb): 36.4'/11.1m
Ratio: 14.5:1

Any S2 owners fancy checking how many turns lock to lock you have?

[Welleh]

does anyone know about the rack out of the v6? ive currently got a 3b s2 and the rack is minced! will it be better putting the v6 rack in?

[Welleh]

does anyone know about a rack off a 2.2/2.3 10v?
cheers
steveo

[Keeper of The Kitten]

Yes they are different, this is what i managed to find on the net, S2 is an ABY as most 3B's had the servotronic steering. I have an ABY rack for mine but havent had a chance to check the difference in ratio etc.

7A CQ 20v

Turns (lock-to-lock): 3.2
Turning circle (curb-to-curb): 36.4'/11.1m
Ratio: 16.8:1

S2 ABY

Turns (lock-to-lock): ??
Turning circle (curb-to-curb): 36.4'/11.1m
Ratio: 14.5:1

Any S2 owners fancy checking how many turns lock to lock you have?

Given the information you already have (same turning circle and the known ratios), I would calculate that the S2 ABY gives 2.76 turns lock-to-lock.

Look at it like this:

Same turning circle quoted = same lock angle = same rack travel

(Assuming the steering arms are the same length on the struts)

Known ratios of 16.8:1 and 14.5:1

14.5 / 16.8 = 0.863

Known turns lock-to-lock for 16.8:1 rack = 3.2

So:

3.2 x 0.863 = 2.76

__MDC__