VT brake booster in VS

[Immortality]

I'll be honest, I was never a fan of that idea. I had a go but binned the idea, my OCD brain just could never fit something like that. With the bracket I used it fixed the offset issue so all you had to do was drill the hole out in the end of the pushrod and bolt it in.

 

[stick3]

the one racebrakes sydney sell have the push rod threaded to make it easy to adjust the length its a lot dearer to buy

Race Brakes Sydney | Brakes

Race Brakes Sydney use and recommend many types of brands and compounds as no two drivers or vehicles are the same. We offer brake pads for street, track and full race.

www.racebrakessydney.com.au

 

[Immortality]

This is the bracket I have, push rod length doesn't need adjustment, just drilling out.

It pushes the booster out slightly further into the engine bay.

 

[Fu Manchu]

i know the hole the brake pedal pin goes through is welded up and drilled and markovr use do them here is his thread

http://[URL]https://forums.justcomm...d-booster-to-fit-previous-models.37495/page-4

[/URL]

Was about to post that. @markovr helped me with quite a few things on my VP. Bloody legend. An innovator.

 

[Fu Manchu]

A VS booster with VE callipers on the VT mounting kit would be the best go.

I have a VE booster in the shed which when thinking about it, is similar to a VS booster for size and depth.

 

[stick3]

this thread has the vt modified booster measurements in post 8

https://forums.justcommodores.com.au/threads/help-please-vt-brake-conversion-issues.34267/

 

[Fu Manchu]

Nearly 20 years that thread has been helping people. Even the photos have remained which is great considering so many have been lost over the years.

 

[Immortality]

Nearly 20 years that thread has been helping people. Even the photos have remained which is great considering so many have been lost over the years.

Definitely, it's much better to post the photos on the forum rather than host them on a 3rd party website and then linking them here.

 

[Lacksballs]

I did this same job just before x-mas to my 1994 VR (ABS model), very simple! VT rotors & calipers direct bolt on, the backing plates just need a small trim. New front brake hoses, VT booster & master cylinder using the same bracket as mentioned above, again all bolt on (only issue the stud thread on the new bracket was M8 x 1 & the O/e are M8 x 1.25). Mine is an ABS model so had to blank off 1 of the front ports in the VT master cylinder, I could simply “bend” the front & rear pipes to fit straight into the VT master cylinder (no joiners/adopters). Once I bleed the brakes I had a very hard/high pedal & had to adjust the push rod between the master cyl and booster in couple of mm (to obtain a bit of free-play on the pedal). My original support bracket didn’t fit either so made up a new one. The VT front brakes are just as poor as std brakes if the VT fast fill master cylinder isn’t done at the same time. But once upgraded, 100% improvement over the std set up.

 

[markovr]

A VS booster with VE callipers on the VT mounting kit would be the best go.

I have a VE booster in the shed which when thinking about it, is similar to a VS booster for size and depth.

I have a vz with ve calipers on 330 discs but you need an adapter bracket to space it out …I knocked it up from 12mm plate and a 4mm spacer to put the caliper in the middle of the disc .The plate was a dogbone arrangement with 2 sets of 2 12mm holes with 18mm between their centrelines …been like that for over 10 years. I’ve seen a ve booster/master done as an upgrade on earlier cars but never tried it ….pedal would be good using one but the size of the flare nut for the front is bigger than the earlier cars so you would need an adapter to drop it down in size but totally do able.