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How to adapt the VT Master Cylinder to early model Commodores

Started by RB30-POWER · 13 Apr 2008 · 339 replies

Preserved from CalaisTurbo (partial recovery). Original authors and dates are shown; archived members are not current Holdcom accounts.

MxPx VLArchived member
You might want to check out this http://www.lowefabrications.com.au/s...inder-bracket/ (http://www.lowefabrications.com.au/shop/vb-vs-2/brake-master-cylinder-bracket/)
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Bro_SpeedArchived member
Quote: Originally Posted by MxPx VL [View Post] You might want to check out this http://www.lowefabrications.com.au/s...inder-bracket/ (http://www.lowefabrications.com.au/shop/vb-vs-2/brake-master-cylinder-bracket/) That looks like a bling replacement for the factory item. Im talking about one specifically designed to fit VL's with the VT booster and master cylinder modification. Ill have the drawings finished soon.
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zoomingArchived member
i wouldbe intereested in one if it looks good
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xAsh-Archived member
Would it not be easy to work off the factory one and change the dimensions to suit the new setup? Then scribe it out on a sheet of alloy or steel and cut it out?
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zoomingArchived member
Hey has anyone who has done this mod had any troubles with leaking out brake fluid from the adaptors????????????????????????????
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jbonezArchived member
Did you use washers?
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zoomingArchived member
mmmmm ok there are three adaptors only one washer which went onto the rear brake line. the two front line bottomed out on the thread before it could on the face I would need two washers for the front ones but they never came with the adaptors NOT HAPPY. I want to take it for a drive and now i cant spewing I bought them from race brakes sysndey . I might send them a message to call me :_(
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VL-EXECArchived member
Has anyone had any issues when respraying the vs boosted being plastic... want to color code it, any tips? ---------- Post added 29-11-12 at 16:45 ---------- also any tech articles or threads regarding the actual brake/disc upgrade
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OBT100Archived member
I just finished bolting in the vt booster/master setup. I modded the booster similar to the pictures on page 3. Same plate steel template(10mm thick) Except I did not weld it to the booster, I cut notches out of the vl mounting bracket(for the studs on the back of the booster) and welded the template to the vl mounting bracket. I then bolted this setup to the booster. This allows me to unbolt the adapter should a booster fail. The pedal height lines up with the clutch pedal perfectly. The strut tower mounting bracket(factory turbo 1'' master)bolts up to the vt master. Very happy with the install. Some original photos have not been recovered yet.
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PSI086Archived member
Made a start on my set up. Using the booster and master cylinder from a VU SS I wrecked. I've made my own bracket for the firewall modeled on the factory one. Fits up perfectly with the factory turbo strut tower bracket. Thinking I'll try and adapt the brake lines from a VS instead of buying the fittings. Can the VS reservoir be from any series or does it need to be from a specific year? Some original photos have not been recovered yet.
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86SLVLTArchived member
where did u buy the big grommet where the braid is poking through from crum?
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PSI086Archived member
Its the factory one from an auto car
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StainsArchived member
Hows it guys, read this article and decided to give these mods a go. Has anyone had problems with bleeding? i have a VY booster with VT master, VT front calipers and VL rears. I bled it all up and its nice and firm with the car off but when its running the pedal goes to the floor and im getting about 1/2 the braking capacity. ive never bled brakes before so chances are ive F***ed it up somehow.
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Stu165Archived member
Quote: Originally Posted by zooming [View Post] mmmmm ok there are three adaptors only one washer which went onto the rear brake line. the two front line bottomed out on the thread before it could on the face I would need two washers for the front ones but they never came with the adaptors NOT HAPPY. I want to take it for a drive and now i cant spewing I bought them from race brakes sysndey . I might send them a message to call me :_( Have you had developments concerning this? I just installed the adapters the other day, and the two front ones also bottom out before sealing on the washers. I am yet to fill back up with brake fluid yet so I don't know if it leaks or not.
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mr_vl86Archived member
They arnt meant to go all the way in (gas type thread) not sure what else to call it ... Thats why only the back line comes with washer
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5LEEPRArchived member
G'day, Just a question regarding the use of VT front hub adaptors on a vl. If I use the VT hub adaptors, 296mm VT discs and VT callipers, will I still be able to use my standard 15 inch stickies? So in short, i just need to know is everything will fit? Also, has anyone done this? and is it worth it? Cheers, Steve
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5spdvlArchived member
About 10,000,000,000 have done this. And if they don't fit, just get new wheels? Stockies are worth nothing.
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5LEEPRArchived member
That's fair enough, but I would rather keep my turbo hubcaps. Anyone else know??
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5spdvlArchived member
Well, the disc is 296mm, wheel is 400mm. Unless the calipers are 10cm thick when bolted up, it'll fit. And VT calipers are not very thick.
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5LEEPRArchived member
Thanks for the info mate, Appreciate it.
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