Brake servo delete and bias pedal box installation

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KW355
E30 Zone Regular
E30 Zone Regular
Posts: 266
Joined: Sat Mar 29, 2014 11:00 pm
Location: Birmingham

Post Sun May 10, 2015 4:58 pm

I have decided to fit a Wilwood servo delete kit to my car, I brought the complete kit from Garagistic in the USA. it cost about £500 with shipping and import duties.

The bracket is only suitable for lhd cars, I don't know if anyone makes a rhd one.

This is what you get;

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There is a 'how to' guide on the Garagistic website but basically you remove the old pedals and bolt on the black bracket to the car then fit the bias pedal box and remote reservoirs.
There is not enough room inside the car to mount the reservoirs directly to the master cylinders like this;

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The kit just gives you both mounting options.


The conversion is quite awkward to do, even more so in my car because the engine ecu wiring and heater pipes run in that area.
The abs had already been deleted on my car so I just had to run new brake pipes, there is one brake master cylinder for the front and one for the back.

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I fitted the two brake reservoirs where the clutch reservoir and the c101 plug was, I removed the c101 and made the connections for this plug inside the fuse box as only 3 wires were still being used.

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The clutch reservoir went on the other side where the old servo was mounted.

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A view of the pedal's underside,

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looks like a grenade has gone off inside
:D

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The master cylinder sizes are changeable to suit the relevant clutch / brake setup, my car has e46 M3 front brakes, I have gone with the default sizes and put a bit of front bias on the adjustment. I need to take it to a garage and put it on the brake rollers, I may need to fit an adjustable rear bypass valve, I removed the standard one which I think was not working properly.