Brake upgrade

[DA 94 VR]

Hi guys

Ive recently upgraded me brakes on my 94 VR exective V6 to VT twin piston calipers on the front with bigger disc and there slotted and the rear have ive left the standed calipers but upgraded the disc to slotted rotors. At first the beake pedal was **** house and i was told id have to put a double diapham booster and a 1' master cyclinder to get my pedal back. Ive done the booster and it did improve the pedal a fair bit but im still not happy with it. I was wondering if anyone had a 1' master cyclinder laying around that would fit my VR.
Thanks

Adam

 

[Immortality]

goto your local repco etc and get the 1" master cylinder from the V8 model. it'll bolt straight on

 

[knowledge_is_power]

If you can give me a vechile description with a 1" cylinder that will fit or JB number I can get you a new one at a good price.

 

[DA 94 VR]

Im not to sure ive been told the VR SS master cyclinder is a 15/16 bore but thats because of the ABS. I Think the VN SS doesnt have ABS and would have the 1' bore im after, but then im not sure if it would bolt straigh on thats the only problem.
Thanks
Adam

 

[knowledge_is_power]

ACTUATION Brake M/Cyl - Suit: 07/1993 - 12/1994 25.40mm SEDAN STATION WAGON NON-ABS V8 P10354
ACTUATION Brake M/Cyl - Suit: 07/1993 - 11/1994 25.40 mm POLICE TAXIS NON-ABS V6 FE2 SUSPENSION P10354

RRP $325

Should be able to get it for less then that though.

 

[DA 94 VR]

Really? Thanks mate. It a 94 VR exective non IRS sedan. Its got an LSD. apart from that she is just stock.

 

[TheForgotten]

have a chat to mark about these VT master/booster. straight bolt on

 

[dale-jcf]

I know it sounds strange, but have you replaced the rear pads?

I swapped my VS brakes to VT calipers and then took it to a place (a brake "specialist"!) to have them bleed the system. They insisted that the calipers wouldn't work, and assured me that it can't work, despite having friends that have done the same conversion. I got them to put the standard front calipers back on, and there was still poor pedal pressure.

I had them replace the rear pads, and guess what, good pedal pressure. I'm not sure if this will help you, but if you haven't already, it might be a good time to change them.

 

[petezor]

get that vt upgrade kit, comes with rotors, hubs, discs, pads, calipers, lines, and its 400-550 odd. all new

 

[DA 94 VR]

Yes i have replaced the rear pads. I did them when i did the upgrade. I got in the kit front and rear rotors, fornt VT calipers, front braided lines, hub adapders for the front. The pads i put in are a police type pad ( well the same compound as then ). I was told they would have to have a bed in space on about 500km. Its now been about 5000km and the pedal is still a little soft.