vt brakes. direct bolt on?
does anyone know if u can bolt vt brakes straight onto a vr with vt brackets?
No idea,
But if it was me and I could get a set of VT front hubs, that's what i'd be doing. Then you know it'd be a direct fit. I know a stock VS needs to the dust cover that sits at the back of the wheel hub to be modified or cut. I've been told it's easier to remove the hub and then use a permanent marker to mark out where it all needs to be cut away and then grind off to shaped. I'll take my hubs off shortly, as i'll do the wheel bearings the same time as I do the VT disc brake conversion.
I've also heard it's not real good to use the standard VR/VS rotors for the VT calipers. They apparently don't get enough contact patch to be worth mentioning. Sounds like it'd pay to replace the discs to VT spec ones.
Real cars are steel cars.
VT front hubs won't work if you run a VS with ABS and live axle. Tone wheel count is different.
If I told you I was a compulsive liar, would you believe me?
Using VR/VS (or VN-VP 290mm) discs with the VT- calipers is not an option at all. In addition to the mismatch between the pad location in the radial direction and disc diameter the new thickness of the VN-VS disc is thinner than the wear limit for the VT- disc. Trying to use the VN-VS disc with the VT- caliper would mean the pads and pistons will sit too far out of the caliper bracket/caliper = dangerous - the difference is 6mm new, 8mm at the VN-VS disc wear limit.Originally Posted by slayer208
The VT- calipers will bolt straight up to the VN-VS brackets on the strut or hub carrier whichever is applicable but there is more to the conversion than that, some recently discussed (= search).
Real cars are steel cars.
+1 to above.
If I told you I was a compulsive liar, would you believe me?
thnks for the replys evryone. i hav no abs, and was planing on useing vt dba slotted rotors. so it looks like the main modification will be to the dust/backing plate rite? o and the hubs.
Yeah, that's for a start!. I'm currently working on the conversion myself, and finding it a little hard to get the relevant info to do the conversion on my VS. It seems that a whole load of people have personally done this mod, but there's little mention on adaptors and spacers that will be required. You will be in the same boat as me, basically needing the same parts. I've found that just installing the VT calipers with the rotors alone, won't be good enough for the conversion, and if that's all that is to be done there will be no real gains in braking performance. Most are saying run a VT master on the VS booster, but to do that you also need an adaptor shim between the two. Don't know how you'd go with the VR. But just adding the VT master won't give you the best of everything. SO running the VT master cylinder and booster is what is preferred, but to do that you need an adaptor block to space up the back of booster unit. This is done, as the VT booster unit has a longer pushrod that connects to the back of the brake pedal. The reading i've done has mixed views on the size of this spacer. Some are saying 3-4mm and others are saying around 1cm. I've also heard that you can cut the pushrod down by that much and drill a new hole for the locking pin, but certainly wouldn't recommend it.
So to start doing the basic conversion, you'll need the VT calipers and either VT rotors "DB040" or conversion rotors "DB040B", or the spacers with standard VT rotors. You will preferably need the wheel hub removed so you can accurately cut the dust cover, as the VT calipers are way bigger than the VR/VS ones. Also for the brake fluid lines, you may be able to use stock VT ones, but I won't know untill I get the rest of the gear I need before I start my conversion. This is just for the calipers, and once that's done you've gotta decide how to go about modding the booster/master. Either that or layout around $600 on one that's already modded.
I found that race brakes sydney will be able to supply you with some basic gear that you need!.
Cheers!
Once all my bits come in and I do the conversion, i'll take photos and write up a detailed thread so everyone knows what needs to be done in more detail!
You will need adapter shims to take up the 1.5mm extra you need to accurately locate the vt discs on the vr hubs or buy the purpose made discs from dba for the conversion as said in the post above.You can then bolt up the stock vt calipers to your struts after modifying the backing plates to clear the new calipers(just use a angle grinder to take most of it and do the finicky parts with a file or die grinder or dremel type tool. You will need longer flexible brake hoses for the calipers.It will all work with your original master booster but with the extra pistons on each caliper it adds travel to the brake pedal. The vt master booster upgrade is recommended...but you will have to make up a bracket to suit your firewall by welding your old booster bracket to a piece of plate steel to suit the new boosters boltup face.You then weld up the old hole and redrill the pedal hole in the pushrod about 12-13 mm forward to get the pedal height the same.The new hole is drilled in fresh steel on the pushrod so theres no problem with strength ...has worked for me for over 4 years with no dramas at all and I give it to it as the brakes are so good.
This is my vr that I rebuilt ....CLICK HERE to see my vr on Cardomain
......if you want to check it out......Anyway make sure you rubbish a ford daily ....I am a 4DH8RZ Club lifetime member .................new members joining everyday
Donating Member
there is currently a how-to in the how-to section, vscalaisii did the write up. He used the modified rotors which are made/machined with the vs hub and vt sized rotor. which fits perfectly.
as markovr said, generally the booster is needed, but some have gotten away without it.
------------------------------------------------------------------------------------------------------------
Wanted: VR/VS Standard Rear Bumper Bar - Can be damaged - PM me if you have one
Thanks fellas,
I've got the shimms for the wheel hubs, Slotted VT rotors, new brake pads and VX Calipers. Got a VT master and Booster also. I'm considering doing the mod for the VT booster unit, either that or run the VT Master cylinder of the VS booster. To do that i've found that you either need to remove the adjustment bolt in the booster which sits at the back of the master cylinder or you can buy a spacer from race brakes sydney. Just deciding which way to go.
Also heard I need conversion lines for the calipers. As mine are VX ones do they run the longer lines? and will this bolt straight on to the vs?
Cheers!, and thanks for your input fellas!
Real cars are steel cars.
VS has the line mount welded to the body and is not part of the line.
VT has the line mount bolted to the body and is part of the line.
I removed the VS mounts from the body and bolted the VT ones to the body. This way it is a standard VT line should I need to replace them.
If I told you I was a compulsive liar, would you believe me?
Hey RX25SE,
I got those brackets with the lines with these VX calipers. Will this be a direct bolt on for the VS or will I still need conversion lines?
Cheers!
The vx flexible brake hose is too short to simply bolt up to your vs brake lines...the ends are ok just the rubber hose needs to be 50 to 60 mm longer at full steering lock you will put strain on the ends and they will fail.
I used a early vt rubber hoses (which are a bit longer) on my vr and it just has enough length and full lock ............but to do it properly you need the longer hoses...and if the new ones you buy are braided that is a improvement over just rubber ones anyway.
Heres mine as you can see at full lock it just has enough length[IMG][/IMG]
Last edited by markovr; 23-06-2010 at 08:12 AM.
Thanks Markovr,
That's the answer that i was looking for. I now know what I need to do to get this conversion on the road.
Cheers!
Real cars are steel cars.
markovr has a point. His pics clearly show the hose is too short.
I used th hoses that came with my calipers and fitted them as per a previous post. I checked the hoses at full extension (on a hoist) as I fitted them and found no issues. My hoses look different to the ones in the above pic.
If I told you I was a compulsive liar, would you believe me?
Hey Markovr, your hoses look to be the same as mine.
I could probably measure these up against the original setup in the car, but I do know that i'm supposed to use the conversion lines.
The Wagon on Wheels..
As above with markovr(he knows his stuff when it comes to this conversion). This is a ver worthwhile conversion, I found especially with a v8 wagon. Its amazing the difference in breaking between a stocko v6 commo to a v8 wagon lump. This conversion made my car much safer to drive, which was the important part for me.
As above, can tell you you will need the hub (egg ring) spacers for the Vt/x/y/z rotors or buy the adaptor rotors (i personally went stock vx rotors with the adaptors so in the future if the conversion rotors go out of production i can simply use cheap standard rotors as replacements)
You also need the longer lines. I just went to the local brake shop and asked for the appropriate conversion lines. Which are basically Vt caliper end with a vr brake line end, and about 70-100mm longer then stock vr lines.
The Vt/x/y/z booster master conversion is realitvely simple if you have acces to a welder and grinder and a small peice of 4mm plate. Basically you use and old vn/r booster bracket and modify the booster end to suit the vt booster plus redrill the hole on the pushrod about 13mm back and weld up the old hole and cut the rod a bit shorter for good looks.. Theres a half sideway shot of it in the vt booster conversion in a link in the "click here for wagon" link in my sig. I ran for about a week on the old vr booster with vt brakes, I found it shit and dangerous and went straight away for the vt booster/master conversion the next weekend. The vt booster is also more highly powered then the vs one and i would recomend just going the whole hog.
Besides that The calipers are a straight bolt on(besides removing the thin steel dust cover). The brake lines need bending to the vt master, i didnt find this too difficult in the vr with abs(as per my how-to) but not sure on other senarios.
Last edited by VrWagz1; 28-06-2010 at 11:16 PM.
It's cheap and half arsed - perfect fit for a Commodore
Reaper
VIP Member
I'm in the process of doing the entire conversion....I've got the VT Booster/MC, the VT Calipers, VT 296mm Slotted RDA Rotors with matching pads....Standard VT Brake lines, and waiting on my 'Egg Ring' Hub spacers from Sydney.
Probably just going to give it to my mechanic to fit it all up...He loves doing modifications, good family friend....might as well let him do it and support his new business.
Driving my Dad's VT wagon and comparing it's brakes to my VS....the conversion was essential. VS Single Piston Calipers are terrible...Absolute shocking brake system....
My car uses very early vt front brake hoses which has right angle brackets pressed on the end where the solid line goes on...later models ones (like in slayers picture) had their brackets at about 45 ish degrees and their actual hose was shorter again so the later ones cant be used at all unless you move/bend your original solid brake lines to fit which is a bit dodgy
I always was goin to replace with the right length braided ones but I never got around to it.
You should probably get those conversion hoses HamaTime. You can get the plain-jane rubber ones, but i'd prefer to pay a couple of bucks extra and get the braided ones and these hoses will balloon out under pressure, and having the braided hoses reduced the amount that the hoses can balloon out making your braking a little more direct.
Cheers!
For those with VR/VS Theadaptor rotor mentioned in this thread is the dba one.
part number 040B (so you can order them at your local parts shop)
If you are going to use another brand of rotor you will be most likely using a proper VT rotor and therefore need the small shim that seats the VT rotor correctly on the VR/VS hub. There is an ever so slight difference.
Last edited by Fu Manchu; 18-07-2010 at 11:27 AM.
Ive modified 3 brackets to fit a vt/x/y booster to fit a vr/s...... 60 bucks a piece if anyone is interested
Interested Markov, I've sent you a pm before reading this thread. pm me back and well fix up the details
Cheers
Posting Permissions
LinkBack URL
About LinkBacks
Reply With Quote
