vp brake upgrade

[commy92]

Just wondering what the simplest and easiests and whats involved for a brake upgrade to a vp.. Im constantly seeing vr upgrades and stuff but nothing for vn/vp well very little anyway.

Also can someone tell me the diffrence between the v6 and the v8 brake setup?

Thanks in advance

Michael

[1991_Vn2nV]

V8's have a larger master cylinder... 1" compared to 15/16"

They also have larger front discs... Rear is the same.

[Fu Manchu]

Get a V8 brake booster and master cylinder. Use V8 brake discs and calipers.

Changing the brake lines to briaded ones will improve things on their own!

I use slotted discs and Bendix Ultimate pads. They do make a lot of dust and they really stop hard once they heat up a bit.

Contact Hoppers Stoppers in Melbourne. They do a conversion kit for the VP so you can use VT twin spot calipers. It comes with an adapter hub. If you use braided lines and upgrade the booster and master to a 1" cylinder it will be a big improvement. The brakes will be spongey and have a lot of travel unless you bleed the new master cylinder seperately first then bleed the brake lines as you normally would. PBR do a kit too.

[immortality]

as said above, go the route ofthe VT twin spot upgrade.

[greenfoam]

I have the strong belief that the VL turbo/VN/P V8 and FE2 type brakes are a very strong setup. If you have a series 2 VP you will allready have this, it's the brakes with the cooling fins on them. The standard VP brakes are the same as the stock VN ones and they suck

[commy92]

yeah i have the stock vp ones. The reason i ask is im doing a turbo conversion and i want it mod plates. So a brake upgrade is a must. Greeny know of anything else of the top of your head that is a must?

[greenfoam]

You wont need a brake upgrade to pass a turbo conversion since the weight of the car relaly hasn't changed and you are only allowed to go 100 so it makes no difference, unless you want to impress the engineer?

[1991_Vn2nV]

More power often means bigger brakes?

Alot of engine conversions require larger brakes, e.g. a 5L into my VN would require 5L brakes to get engineered.

In fact Transport SA said its likely i'll need upgraded brakes to get my 19's engineered, and that braking is something that is tested when engineering larger wheels. But Transport SA are full of bullshit so you never know.

[greenfoam]

Why do you need more brakes for more power, think about it , you are still stoping from the same speed. The 5 liter only has bigger brakes because it was a more expensive car and mostly because if it didn't it, being heavier it would stop worse than the V6 and you can't pay more and have a craper car.

[1991_Vn2nV]

Why do you need more brakes for more power, think about it , you are still stoping from the same speed. The 5 liter only has bigger brakes because it was a more expensive car and mostly because if it didn't it, being heavier it would stop worse than the V6 and you can't pay more and have a craper car.

Im not arguing with your logic But Transport SA say this:

Under the Road Traffic (Miscellaneous) Regulations 1999 the fitting of an engine of greater capacity than an engine available as an option for the vehicle, so as to exceed the efficient functioning capacity of the braking system provided at the time of manufacture of the vehicle, is not permitted unless a Certificate of Exemption is issued by Transport SA.

Several factors are taken into account when considering an application to increase the engine capacity of a vehicle. Consideration is given to the weight of the engine, the power and torque output in relation to braking, strength of the vehicle, effect on steering/suspension components, and the effect on vehicle handling characteristics.

[v6vn/vpwagon]

Your not changing the engine though, your adding a supercharger. Therefore you don't need to change the brakes. But upgrading to the 1 inch master makes a hugh difference in braking and i would strongly recommend it. I did it to my vn berlina and they work a treat without changing the calipers or disks.

[1991_Vn2nV]

Yeah but the main point there is "the power and torque output in relation to braking"... Which I would think would be considered if you fitted the car with a supercharger or turbo.

[Full Spectrum]

The VT upgrades are good with twin pistons and 298mm front rotors i believe.
And go the V8 master and booster.

[Fu Manchu]

But bleed the master cylinder seperately before bleeding the whole line to prevent the things people give bad feed back aroound the traps on the twin spot brake conversions.

[commy92]

yes i also believed to pass an engineers report you would need bigger brakes as power increases and what not. Plus now i have 19 inch wheels i need something to fill in the gaps.. lol. But i think i might just put some slotted and cross drilled rotors on and upgrade the calipers to series 2 (i think i have a set on my parts car) decent pads and then later on find a 1 inch master. The only other thing. Is i thought that with a larger master cylinder you got worse breaking as you have to move more fluid to push the same size piston. Trying to remember back to my tafe days... hmmm ahhhh...

[immortality]

yes i also believed to pass an engineers report you would need bigger brakes as power increases and what not. Plus now i have 19 inch wheels i need something to fill in the gaps.. lol. But i think i might just put some slotted and cross drilled rotors on and upgrade the calipers to series 2 (i think i have a set on my parts car) decent pads and then later on find a 1 inch master. The only other thing. Is i thought that with a larger master cylinder you got worse breaking as you have to move more fluid to push the same size piston. Trying to remember back to my tafe days... hmmm ahhhh...

other way around, it's all to do with the ratio between the master cylinder and the cylinder it's pushing the fluid into. a bigger master cylinder would push more fluid for the same travel, therefor would require less travel to move the caliper piston the same amount

[Furious_8]

After putting a Turbo onto a VP and VN i would upgrade the brakes just from giving it a bit up the street to about 70kms if someone pulls out in front the thing just wont stop. Its like filling the system full of water.

I will be doing a VT upgrade, braided lines, slotteds, Ultimates and 1" master. I also run Nissan GTR 4 pots on my VC and they also work great with the same combo but need to spend the cash.

[Fu Manchu]

Why would people bother argueing the merits of needing better brakes? No matter the make or model or power, if you can do it then all the better for your life and ride. If most accidents come down to stopping distance then do what ever your budget allows to make that shorter

[Full Spectrum]

I think the VT upgrade is good because if anyone has noticed there current stock VN-VP brakes i have also seen this on the V8 models they dont cover the full disc the calliper and brake pad, But a upgrade does.