Brake Specs For Engineering

[Dan355]

Hey
Just wondering if any know the caliper to rotor surface area for the standard brakes on the vn ss and the PBR Twin Piston Calipers with 330mm rotors? I also need to know the piston diametre for the twin piston calipers to. I need these specs to get my brake upgrade engineered. Any info would be great.
Cheers

[xcop5l]

i didnt think you needed an engineer to sign off on a brake upgrade.
the pistons are the same size as vt ones. as far as i know

[Dan355]

Any brake upgrade needs to be engineered here in SA even the vt brake upgrades. Im doing it coz i have to pass the inspection to get my defect cleared
Not too sure if they are the same as the vt calipers. Anyone>?

[AirStrike]

They are the same as the HSV option found from VT onwards. Good luck finding what your after, not something that is common knowledge.

[1991_Vn2nV]

For xcop51:

BRAKES
Brakes must not be altered in any way that would reduce the braking efficiency. This includes the fitting of smaller drums or discs and machining drums or discs beyond those limits set by the manufacturer. If brakes are upgraded eg. front brakes changed from drum to disc, it is essential that:
(a) The correct master cylinder is fitted;
(b) There is an adequate reservoir (disc brake systems usually require a larger reservoir);
(c) Front to rear brake balance is compatible and does not result in excessive wheel lockup on one axle
during moderate braking.
(d) That all components of the braking system are compatible.
Transport SA approval is required before any alterations are carried out to the braking system of a passenger vehicle manufactured on or after 1 July 1977 (ADR 31) or a passenger car derivative manufactured on or after 1 January 1979 (ADR 35).The fitting of alternative brakes may also alter wheel track dimensions, which in itself may not be illegal, however, it may cause confusion for enforcement bodies unless Transport SA has issued some formal acceptance of the modification.

SA laws are gay

Have you checked with Transport SA re: approval? Because with a common upgrade like the VT hub conversion on earlier commodores, they may have a set approval?

[AirStrike]

For xcop51:

BRAKES
Brakes must not be altered in any way that would reduce the braking efficiency. This includes the fitting of smaller drums or discs and machining drums or discs beyond those limits set by the manufacturer. If brakes are upgraded eg. front brakes changed from drum to disc, it is essential that:
(a) The correct master cylinder is fitted;
(b) There is an adequate reservoir (disc brake systems usually require a larger reservoir);
(c) Front to rear brake balance is compatible and does not result in excessive wheel lockup on one axle
during moderate braking.
(d) That all components of the braking system are compatible.
Transport SA approval is required before any alterations are carried out to the braking system of a passenger vehicle manufactured on or after 1 July 1977 (ADR 31) or a passenger car derivative manufactured on or after 1 January 1979 (ADR 35).The fitting of alternative brakes may also alter wheel track dimensions, which in itself may not be illegal, however, it may cause confusion for enforcement bodies unless Transport SA has issued some formal acceptance of the modification.

SA laws are gay

Have you checked with Transport SA re: approval? Because with a common upgrade like the VT hub conversion on earlier commodores, they may have a set approval?

In VIC if its from the same manufacturer you don't need em engineered

[Dan355]

Atm iv just been talking to my engineer he hasnt said anything about a set approval from transport sa. I should check with them on monday. I wish i was in VIC life seems alot easier up there.

[xcop5l]

yeah down here in vic were slack we do one rwc when we buy the car and thats basicly it. we can also modfy our cars to a certen extent with out getting it engineered. we dont even have emissions tests here. (if we do ive never heard of it and i do rwc's at work)

[Dan355]

Thats the next thing i need to get done too.