twin spot calliper question

[Jordo2]

gday, jus t wondering if vx twin spot callipers will fit onto a vn? if so, wot is required to make it fit? cheers.

[immortality]

this is normally reffered to as the VT upgrade as they are basically all the same calipers from VT to VZ with the VE getting new calipers

[Jordo2]

this is normally reffered to as the VT upgrade as they are basically all the same calipers from VT to VZ with the VE getting new calipers

i c, so do they simply bolt up, or will i require more than just wot came off the vx?

[Not_An_Abba_Fan]

Fitting the VT calipers will usually require upgrading the master cylinder to the V8 1" bore as the VT twin pots displace more fluid. A lot of people have done the conversion, but the better conversion is the VE upgrade as you don't need to change the master cylinder due to them having smaller pistons and less displacement. They come in 289mm and 322mm versions, slotted or plain rotors.

I do the 289mm slotted kit for $695. They come with calipers, braided lines, pads, fluid and slotted rotors and mounting hardware.

[daves_279]

ive got 330mm VN group A rotors and VE calipers plus the different mouting bracket, stock 1" bore master cylider, best thing ive ever done,

[LAP004]

Hey mate i got a Vp sedan with the vt twin spot. The brakes them selves bolt on to the mounts with no mods. Mine has the front wheel bearing and rotor assambly off a vt put on instead of the Vp setup. Dont think my master cyclender has been upgraded.

[immortality]

Hey mate i got a Vp sedan with the vt twin spot. The brakes them selves bolt on to the mounts with no mods. Mine has the front wheel bearing and rotor assambly off a vt put on instead of the Vp setup. Dont think my master cyclender has been upgraded.

i think what you mean is that you have the custom bearing hub to suit VN/VP (actually all commodores from VB ) and the standard VT rotor because the standard VT hub/strut is a different setup to the VP hub/strut setup

[LAP004]

Thats wat it would be mine was done before i bought thecar. My mate put the same brakes on his vl but be just used the stand wheel bearing and disk rotor. Not sure how good it worked on his. But he recons that it was a lot better then standard set up.

[VN Wagz]

My wagon has the 296mm front upgrade- red anodised calipers and slotted and drilled discs, and really good pads, and the kit is supplied with the billet adaptors to suit.

Found that if you run this with the stock (non V8) booster then you have about half pedal travel then bugger all actual stopping power. Really dangerous...

Hence, i ended up getting the VT booster (with modified mount bracket for VN firewall) as well. All of it was from Racebrakes in sydney, whole lot owed me about 1300ish once fitted up.

All i can say is, thank god for bigger brakes- i wouldnt pull up now with the turbo setup if the stockies were in palce.

[Not_An_Abba_Fan]

The master cylinder and booster does not need changing if using the VE upgrade.

[Jordo2]

thanks to all, will prob go with the ve bits.

[pow3rslave]

hey Not_An_Abba_Fan, don't suppose you know the size and whatever about the screws that tap the brake lines into the MC on v8 1" setups?

[1trkmnd]

The master cylinder and booster does not need changing if using the VE upgrade.

Got a 330 mm ve front and 315 ve rear kit on my car and still have a brand new 1 inch master sitting in the shed, didn't have to fit as the pedal is great.... With the Standard master the pedals way better than it was with single pistons...VT Calipers will need a bigger master if you dont like your brake pedal touching the floor sometimes..

[Commydoor]

you do brake kits not-an-abba-fan?...do you do the VE fr and rr kits?

[Alloytec]

My wagon has the 296mm front upgrade- red anodised calipers and slotted and drilled discs, and really good pads, and the kit is supplied with the billet adaptors to suit.

Found that if you run this with the stock (non V8) booster then you have about half pedal travel then bugger all actual stopping power. Really dangerous...

Hence, i ended up getting the VT booster (with modified mount bracket for VN firewall) as well. All of it was from Racebrakes in sydney, whole lot owed me about 1300ish once fitted up.

All i can say is, thank god for bigger brakes- i wouldnt pull up now with the turbo setup if the stockies were in palce.

this would explain why i had really shit pedal when i put my vt upgrade brakes on.. returned to stock and fine..

so without using the vt booster what changes do i need to make with parts that will fit

ie - braided lines ? to suit a vt ?

[Not_An_Abba_Fan]

hey Not_An_Abba_Fan, don't suppose you know the size and whatever about the screws that tap the brake lines into the MC on v8 1" setups?

No I don't sorry. I thought they were all the same. Just the VT calipers had a different fitting than the earlier ones.

you do brake kits not-an-abba-fan?...do you do the VE fr and rr kits?

The VE upgrade only comes as a front kit. You could source VE rear brakes if you wanted, but the stock rear brakes are fine. You can get the rotors slotted the same to match the fronts. Unless you just wanted to go bigger.

this would explain why i had really shit pedal when i put my vt upgrade brakes on.. returned to stock and fine..

so without using the vt booster what changes do i need to make with parts that will fit

ie - braided lines ? to suit a vt ?

You don't need the booster, I'm pretty sure you just need a 1" master cylinder. You won't get a good pedal using VT calipers unless you put a 1" m/cyl on.

[victtor]

HI i want to put vt twin pot upgrade on me vp ss will i need to upgrade master cylinder or will it be ok, will i need longer lines thanks
victtor

[Not_An_Abba_Fan]

The VP V8 already has a 1" master cylinder so it would work, but the VT "fast fill" is even better.

Using the VE kit, you can retain the stock m/cylinder.