Quicker steering rack

Duffy3074 · 21-05-17, 08:11 AM

Morning!

Is there any sort of later steering rack that fits a B3 that's quicker than the original and a straight swap??

Whilst it's part of the character of the car, there's a lot of steering input required for not a lot of response at the front end.

I appreciate that there are other issues here (no rear ARB and it's still on winter tyres)

a1quattro · 21-05-17, 08:43 AM

I fitted steering rack from a soft top audi [s2 shape] bolts straight onto ur shape but pipe fitting differnet , so new pipes req . but much quicker rack , think its now 2 1/4 , but was 3 1/4

Duffy3074 · 21-05-17, 09:19 AM

Quote:

Originally Posted by a1quattro

I fitted steering rack from a soft top audi [s2 shape] bolts straight onto ur shape but pipe fitting differnet , so new pipes req . but much quicker rack , think its now 2 1/4 , but was 3 1/4

Thank you for that.
I'll look at that in some more detail as between doing that and fitting the sport steering wheel I've already got stashed away, that'd be a big step forward.

Duffy3074 · 22-05-17, 05:41 AM

Quote:

Originally Posted by a1quattro

I fitted steering rack from a soft top audi [s2 shape] bolts straight onto ur shape but pipe fitting differnet , so new pipes req . but much quicker rack , think its now 2 1/4 , but was 3 1/4

I spent ages last night going through steering rack parts numbers and trying to ID what you might have.
If practical, any chance of looking at what's on yours?

Mellis46 · 22-05-17, 10:55 AM

Aren't the sporty steering racks all fitted to cars with Central Hydraulics? (A Brake booster and steering all on same system?) The standard 90 doesnt come so equipped, only the 20v did, will this cause an issue?

Duffy3074 · 22-05-17, 12:27 PM

That'll be servotronic I assume?
They were easily spotted due to the extra connector at the bottom

mikes2 · 22-05-17, 03:07 PM

not related to servotronic.

All 20v, V6 and S2 cars which came with the quicker racks used a hydraulic servo

Duffy3074 · 22-05-17, 03:14 PM

How does that affect the the rack?
Different operating pressure?

mikes2 · 22-05-17, 04:22 PM

there is a pipe that goes from the rack to the bomb which you would need to block off.

msh · 22-05-17, 04:50 PM

I think there was discussion like this long time ago... Or maybe subdiscussion in some project thread... The difference between short and long rack wasn't THAT big - it was something like 4 turns for long one and 3 1/2 for short, or 3 1/2 for long and 3 for short, or something like that. Looking at the catalogue, it seems that RHD short rack could be 896422065BX , as it was used by late S2 and also by RS2, and apparently could be found in various other models as well http://www.oemepc.com/tvn_result/search/tvn/896422065BX

Quote:

Originally Posted by mikes2

not related to servotronic.

All 20v, V6 and S2 cars which came with the quicker racks used a hydraulic servo

So far I haven't heard about any V6 using anything but vacuum servo..

22-05-17, 10:55 AM	#5
Mellis46 Aero Advocate Classic Audi Club Member Join Date: Aug 2014 Location: Lancashire Posts: 1,448	Aren't the sporty steering racks all fitted to cars with Central Hydraulics? (A Brake booster and steering all on same system?) The standard 90 doesnt come so equipped, only the 20v did, will this cause an issue? __________________ -1987 90 2.2E / Sapphire Blue (Rest in Pieces) -1989 90 quattro with Sport Equipment / Satin Black -1997 A4 Avant quattro TDI 110 / Tropical Green (Sold)

22-05-17, 03:07 PM	#7
mikes2 4 ring whore! Classic Audi Club Member Join Date: Nov 2007 Location: Polmont Posts: 2,617	not related to servotronic. All 20v, V6 and S2 cars which came with the quicker racks used a hydraulic servo __________________ 1991 90 quattro 20v sport 1991 90 quattro

22-05-17, 04:22 PM	#9
mikes2 4 ring whore! Classic Audi Club Member Join Date: Nov 2007 Location: Polmont Posts: 2,617	there is a pipe that goes from the rack to the bomb which you would need to block off. __________________ 1991 90 quattro 20v sport 1991 90 quattro

21-05-17, 08:43 AM	#2
a1quattro Grown up member Classic Audi Club Member Join Date: Mar 2013 Posts: 251	I fitted steering rack from a soft top audi [s2 shape] bolts straight onto ur shape but pipe fitting differnet , so new pipes req . but much quicker rack , think its now 2 1/4 , but was 3 1/4

22-05-17, 12:27 PM	#6
Duffy3074 4 ring whore! Classic Audi Club Member Join Date: Aug 2015 Location: Dalgety Bay, Fife Posts: 2,078	That'll be servotronic I assume? They were easily spotted due to the extra connector at the bottom

22-05-17, 03:14 PM	#8
Duffy3074 4 ring whore! Classic Audi Club Member Join Date: Aug 2015 Location: Dalgety Bay, Fife Posts: 2,078	How does that affect the the rack? Different operating pressure?