In my opinion, a car that is designed with PAS should have PAS. I'm certain more castor will solve the feel issue, though Anton is the guinea pig on this one
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I would like to try reduced PAS assistance if some hydraulic pump expert can offer up advice... I know a fella thats an ex truck mechanic - he'd likely had a few beastly pumps fully stripped and rebuilt in his day.
As to castor - I do agree its worth playing with - but how is this achieved - with some funky adjustable top mount bracketry that can alter the castor geometry ?Paul Nugent
Webmaster http://S2central.net
Administrator http://S2forum.com
1994 S2 Coupe ABY - aka Project Lazarus
2001 A6 allroad 2.5TDi - family tank
2003 S4 Avant 4.2 V8 - daily burble
Purveyor of HomeFries and Exclusive agent for Samco hose kits (S2/RS2)
There are only 10 kinds of people that understand binary - those that do, and those that don't
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You'll need PAS on an S2? 1 ton on the front axle and 225+ tyres will make it impossible to use.
Don't forget that a smaller steering wheel reduces leverage. My 350mm Momo makes the steering heavier for sure.Cheers'en, AndyC
1994 ABY Coupe - Projekt Alpinweiss
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Let me say this again - I wonder if REDUCED PAS pressure will make steering a bit more weighty and pleasurable. Not wanting to try zero PAS pressure.
I think its nominally 140bar pressure out of the hydraulic pump... wonder how feasible it is to get something like 100bar with different valves or whatever...Paul Nugent
Webmaster http://S2central.net
Administrator http://S2forum.com
1994 S2 Coupe ABY - aka Project Lazarus
2001 A6 allroad 2.5TDi - family tank
2003 S4 Avant 4.2 V8 - daily burble
Purveyor of HomeFries and Exclusive agent for Samco hose kits (S2/RS2)
There are only 10 kinds of people that understand binary - those that do, and those that don't
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think i read somewhere that sticking a larger pulley on the pump actually causes safety issues so a valve or restrictor change might be the best option. As i have said before elsewhere, Pirtek will be able to advise on this stuff as they do not alot else other than hydraulics and remake the pipework. I had all the lines on my steering remade by them with change out of £140. I'm sure one of the lines off the pump has the restrictor in it so take advice on what to change it to to reduce assistance....sigpic
1992 3b S2 Coupe
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Now we are getting somewhere - thanks David...Paul Nugent
Webmaster http://S2central.net
Administrator http://S2forum.com
1994 S2 Coupe ABY - aka Project Lazarus
2001 A6 allroad 2.5TDi - family tank
2003 S4 Avant 4.2 V8 - daily burble
Purveyor of HomeFries and Exclusive agent for Samco hose kits (S2/RS2)
There are only 10 kinds of people that understand binary - those that do, and those that don't
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Originally posted by Mr.Crossfire View PostAudi S2 ABY: Have you checked your top mounts? Mine had stuck bearing, made the steering heavier but unpleasant. More castor would be nice. Poly bushes in the front subframe should make some difference also.
David, are you saying you have a restrictor on your car atm? did you notice more feel?
As for the caster issue, as Stiglet says i'm going for the offset subframe bushes, then in time i'll get the 2bennett adjustable top mounts, but at £300 a pair i'm going to hold off for while.
Ant91' Coupe quattro 20v - project
KW V2s and other goodies
now gone
03' BMW 330CI - Sold
08' A5 Coupe 3.0l tdi quattro - Sold
57' BMW 525d M Sport Touring
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Offset subframe bushes - thats an interesting idea too... Who is making those and what level of adjustment is in them ?
Struggling to think how you adjust them actually - is there some means of rotating them in situ whilst sitting on a wheel alignment jig ?Paul Nugent
Webmaster http://S2central.net
Administrator http://S2forum.com
1994 S2 Coupe ABY - aka Project Lazarus
2001 A6 allroad 2.5TDi - family tank
2003 S4 Avant 4.2 V8 - daily burble
Purveyor of HomeFries and Exclusive agent for Samco hose kits (S2/RS2)
There are only 10 kinds of people that understand binary - those that do, and those that don't
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Originally posted by S2central.net View PostOffset subframe bushes - thats an interesting idea too... Who is making those and what level of adjustment is in them ?
Struggling to think how you adjust them actually - is there some means of rotating them in situ whilst sitting on a wheel alignment jig ?
pictures worth a thousand words and all that.....
only issues are the gearbox mounts moving so apparently the maximum offset "will require more modification" lol but i'm changing to an 01E box at the same time and removing the spacer so hopefully they will cancel out, otherwise its just the issue of the wheel moving forward in the arch. apparently one of the setting (not sure which, prob the higher offset) will get aprox 2.5 deg caster
also link would help......034Motorsport - offset subframe bushes
sorry for the Hijack, it is half relevent tho
Ant91' Coupe quattro 20v - project
KW V2s and other goodies
now gone
03' BMW 330CI - Sold
08' A5 Coupe 3.0l tdi quattro - Sold
57' BMW 525d M Sport Touring
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Originally posted by anton View Posti dont think this is the issue we are talking about as this is a problem on all our cars.
David, are you saying you have a restrictor on your car atm? did you notice more feel?
As for the caster issue, as Stiglet says i'm going for the offset subframe bushes, then in time i'll get the 2bennett adjustable top mounts, but at £300 a pair i'm going to hold off for while.
Antsigpic
1992 3b S2 Coupe
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Originally posted by s2driveruk View PostYes, you have one from stock on the power steering, its on one of the lines from the pump to the rack. Although they are sleeved you can feel it half way along the pipe....see if i can find a picture somewher, might even be in my old project thread somewhere, cant remember
how mard would it be for someone to fit an adjustable restricor to the lines? if a reduced pressure helps, its even more reason for me to convert to an MR2 pump, as i understand it then run at a slightly lower preassure.
i think someone needs to volunteer to be the guinee pig for the preassure research
Ant91' Coupe quattro 20v - project
KW V2s and other goodies
now gone
03' BMW 330CI - Sold
08' A5 Coupe 3.0l tdi quattro - Sold
57' BMW 525d M Sport Touring
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