what brake servo/pedal box setup on a e30 m3 - s50 engine

Post Tue Aug 16, 2011 9:35 pm

putting an S50 into a E30 m3 and want to know which servo unit people are using so not to modify the standard inlet manifold

Also have you had to alter the brake pedal or not?

Post Tue Aug 16, 2011 10:24 pm

I had a Polo one.. Not going to be using it anymore. Was a straight fit on a RHD e30..

Post Wed Aug 17, 2011 12:35 pm

More worried about the left hand drive car with the pedal and servo that would have line with the standard engine and now due to the E36 inlet manifold will have to be moved

ie not inline!

Post Wed Aug 17, 2011 12:58 pm

Bit confused..

My servo cleared everything without modding or moving..

Post Wed Aug 17, 2011 1:50 pm

Servo position is in the same place LHD or RHD

Post Wed Aug 17, 2011 5:41 pm

Polo servo will fit both left and right hand drive with no modification at all, Clio servo will need moving over about 40-45mm. I have no idea how you could achieve that on a LHD

Post Sun Aug 21, 2011 9:33 pm

Sorry to hi-jack the thread a bit - what year / model VW Polo Servo is a straight swap?

Cheers,

Mike

Post Sat Aug 27, 2011 9:30 pm

penton08 wrote:Polo servo will fit both left and right hand drive with no modification at all, Clio servo will need moving over about 40-45mm. I have no idea how you could achieve that on a LHD

are you running a polo servo??

Post Sat Aug 27, 2011 10:10 pm

He is..

Post Sun Aug 28, 2011 3:49 pm

crossie wrote: are you running a polo servo??

Yes, I am. Mine is from a mk3 polo G40 but I believe any polo of similar age will fit. However it is very small, While i like the assistance it gives others might not.

Post Mon Aug 29, 2011 5:09 pm

penton08 wrote:
crossie wrote: are you running a polo servo??
Yes, I am. Mine is from a mk3 polo G40 but I believe any polo of similar age will fit. However it is very small, While i like the assistance it gives others might not.

With the s50 Conversion do you still run s50 gear linkages or do shorter linkages have to be fitted??

Post Mon Aug 29, 2011 5:15 pm

crossie wrote:
With the s50 Conversion do you still run s50 gear linkages or do shorter linkages have to be fitted??

With the zf 5 speed box standard e36 m3 stuff fits fine, not sure about the 6 speeder though.

Post Sun Sep 04, 2011 10:28 am

You could always fit a remote servo?

http://www.ebay.co.uk/itm/NEW-LOCKHEED- ... _851wt_922

Andrew

Post Sun Sep 04, 2011 5:06 pm

Demlotcrew wrote:You could always fit a remote servo?

http://www.ebay.co.uk/itm/NEW-LOCKHEED- ... _851wt_922

Andrew

That particular item is only for a single circuit though. I had one similar in my old MK1 Escort.

Not sure if they do a twin circuit version.

Ian.

Post Sun Sep 04, 2011 5:09 pm

It is you're right Ian, but having driven a car with this fitted to the front brake circuit only it felt really nice, obviously you would need to fit two for front and rear, but these are a great option for pedal boxes.

Post Tue Sep 06, 2011 9:27 pm

cheers for the info guys

Looks like I ll be getting a polo servo - Just got to decide on the size of master cyinder

Post Thu Dec 29, 2011 10:34 am

I guess the Polo one is the same as the golf 2 one: 7 inch diameter

According to some pics I found on the net it's not a direct fit but needs to be moved 55mm to get it to fit:

This picture was taken after it was moved.

In some time I can tell you first hand if it's true since I've modified my pedal box to move it 55 mm. Btw: the picture was taken on a RHD. I've modified my LHD.

Post Fri Dec 30, 2011 12:26 pm

I found a servo which fits without modification.. Early Polo servo. I and Penton08 both run/ran this setup. I will be going manual next time, so have a servo up for grabs.

Post Fri Dec 30, 2011 5:21 pm

Can you be more specific? Year of Polo? And does the E30 Master Cyl. fit to it? But would be interested in your servo if it means i dont have to fart about moving/cutting/lengthening etc...

Cheers!

Post Fri Dec 30, 2011 6:23 pm

Jhonno wrote:I found a servo which fits without modification.. Early Polo servo. I and Penton08 both run/ran this setup. I will be going manual next time, so have a servo up for grabs.

Price and delivery to York area.

Post Wed Jan 04, 2012 10:09 am

Jhonno wrote:I found a servo which fits without modification.. Early Polo servo. I and Penton08 both run/ran this setup. I will be going manual next time, so have a servo up for grabs.

Pictures? Based on the posted picture above it would be nearly impossible to mount one without moving it. I've never done this so I'm not speaking from first experience but I'm trying to prepare as best as I can.

I've a golf 2 servo which is 7 inch in diameter and I've modded a pedal assembly to move it 55mm. I'll fit this on the car before I even attempt to put the S50 in.

So Jhonno please post me some pictures it might save me a lot of work!

Post Wed Jan 04, 2012 4:50 pm

The picture is of a golf servo, A polo servo is smaller hence it fits and a golf one wont!! The polo servo does not give as much assistance as the golf one, and a clio servo gives more than both. In a ideal world you would fit a clio servo moved over.

Post Wed Jan 04, 2012 6:36 pm

How large is a polo one? I've had both the 10 inch golf GTi one and switched voer to the golf 2 7 inch one. I believe the 10 inch golf one will hit the fuse box if you move it over.

(Ain't preparing fun: pretending to know what you're talking about without actually having done it

)

Post Wed Jan 04, 2012 6:53 pm

penton08 wrote:a clio servo gives more than both. In a ideal world you would fit a clio servo moved over.

This is all that needs to be posted in respect to RHD cars really...

Post Wed Jan 04, 2012 7:59 pm

Yeah LHD cars is a whole different ball game!

Post Thu Jan 05, 2012 7:22 am

Jhonno wrote:Yeah LHD cars is a whole different ball game!

That's where I am playing.

Post Thu Jan 05, 2012 9:53 am

Olop servo would still work.

Post Thu Jan 05, 2012 10:34 am

Jhonno wrote:Olop servo would still work.

Sorry to bother you again but how large is the polo one? got pictures?

Post Thu Jan 05, 2012 10:36 am

Smaller than a Golf one. Not sure I have any pics of it.

Post Thu Jan 05, 2012 10:57 am

Ok thanks. I'll post pics when I have it mounted to clarify things for future users.

Post Sun Jan 15, 2012 8:27 pm

6.5 inch wide polo servo

Do people use larger master cyclinders as this servo only came with a 19mm - my old saxo had a 23mm as standard.

Post Sun Jan 15, 2012 8:48 pm

What calipers/brakes will you be running? Smaller m/c will give more travel but less effort to counter the smller servo. I'd try 23mm to begin with.. I ran a 25mm but had bigger e36 M3 calipers.

Post Sun Jan 15, 2012 8:50 pm

think Uwe had 540 caliper?
you might know more than me!

Post Sun Jan 15, 2012 9:17 pm

735i.. Didn't realised you'd got the brakes aswell. Can't recall the piston dia. Think Uwe was running the standard M3 m/c.

Post Sun Jan 15, 2012 9:19 pm

You will need a 25mm master for 540 calipers too, unless you are changing the calipers then keep your standard E30 master cylinder