E30 Zone

Hi Guys.

I am wondering what brake booster gives the best clearance and requires least cutting to the airbox to fit.

From what I understand there is no brake booster that will clear the airbox out there, without having to move it to the right.

I am looking for a brake booster that will install onto the factory location without cutting the E30 Chassis as I plan to make it reversible, but one which will require the least cutting to airbox to fit, and that can accept the original E30 master cylinder if it will clear the intake elbow on the Airbox.

Which Servo would be best suited in my situation? As I understand otherwise only option is to go the E32 Hydrualic assisted setup

I don't think there is one. I tried the smallest servo I could find (Mk1 Golf non GTi servo at 7" diameter) and that still wouldn't fit without cutting the S50 plenum and the assistance was shite! I soon changed to a 9" servo. I wouldn't go smaller than the Clio servo.

Even using the E32 hydraulic setup, the plenum may still need modding as the E30 master cylinder sits right where the inlet elbow needs to be. You might get around this by using a shorter master cylinder from an Audi but I'm not 100% sure.

AFAIK the only way you can get any servo to fit without cutting the plenum is to use the smaller Clio and move it over. The chassis won't need cutting and if its done well, it will look as factory as having an S50 under the bonnet

+1 the clio servo only needs to be moved a small bit, to the point where you wont see any holes etc when its installed

Any info on how to fit the Clio one without cutting the chassis? I always imagined if your moving the booster over you need to drill extra holes for the bolts, and cut the hole open to allow it to fit.

Which Master cyl and reservoir to use with Clio booster?

Does the rod mechanism inside the dash need modifying?

The chassis won't need cutting but you will need to drill some new holes in the bulkhead.
I think there are some pictures on here of the mods required to move the servo and the search function should help you find them.
Below is a quick written explanation...

Brianmoooore wrote: AFAIK, I was the first on here to move the standard servo over instead, when I did my first M50 conversion some twelve years ago. This was done by cutting a new hole in the bulkhead, closer to the wing, fitting a blanking/reinforcing plate to cover the old hole and strengthen the new, extending the bracing for the bell crank off of the transmission tunnel, and using a cut down E34 pull rod to go across to the pedals.

Brian was talking about moving the standard servo for his M50 conversion, but it will be the same for the Clio servo.

Mk3 polo servo fits with no modifying needed, it not the best tho!! I would use a Clio servo and move it over

massive Lee now has booster delete product that works on RHD cars, you can do remote M/C res to

http://www.r3vlimited.com/board/showthread.php?t=368382