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Author Subject: rear big brake conversion
owain

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Post #26
anth wrote:
A hydralic handbrake isnt road legal- f**k knows why.


Because the whole point of a handbrake is to offer a secondary braking system - if your brakes fail you have a mechanical handbrake to slow down with. Also without a mech brake, if your hydraulics failed, your car would roll off down a hill and kill people. Far safer to have a simple, mechanical device than relying on the hydraulic system.

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Posted 10th Sep 2012 at 18:16
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owain

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Post #27
ballardpaul wrote:
What due to a hydraulic handbrake? I just mean APs on the rear, couldn't I keep the standard handbrake?


If the calipers are from the front of a car they won't have the handbrake mech. If they're rears, they may do but would need a bit of work to get them to work with the Pug cables.

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Posted 10th Sep 2012 at 18:17
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ballardpaul

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Post #28
I see, tbh I'd never buy them anyway too much money. Anythings safer than a pug handbrake LOL

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Posted 10th Sep 2012 at 18:23
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owain

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Post #29
Anyone who trusts a pug handbrake deserves to find their car at the bottom of a hill when they return Yes

Leaving cars in gear FTW, for many reasons.

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Posted 10th Sep 2012 at 18:24
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anth

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Post #30
I was about to edit that when i realised the obvious, you have highighted the error now.

However the cables could snap i admit im clutching at straws now...
Posted 10th Sep 2012 at 18:27
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owain

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Post #31
Which is why you leave your car in gear, handbrake on (unless your discs are hot, like on a trackday), with your front wheels pointing towards the kerb, so that if all else fails your car will roll back and stop when it hits the kerb rather than rolling out into the road.

That's the theory anyway Wink

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Posted 10th Sep 2012 at 18:29
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fatlapit

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Post #32
Im only looking to use the standard calipers. and making a bracket then machining a bell to get the correct offset then bolt a disc on.

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Posted 10th Sep 2012 at 18:35
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owain

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Post #33
fatlapit wrote:
Im only looking to use the standard calipers. and making a bracket then machining a bell to get the correct offset then bolt a disc on.


Genuine question - why? What are you seeking to gain? The current rear discs are light, don't overheat, have more than enough stopping power and cost £16 a piece. What more can you ask than that?

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Posted 10th Sep 2012 at 18:36
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fatlapit

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Post #34
To match the fronts tbh plus it wont cost much to do mate also i am fitting a bias valve to try and dial them in.

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Posted 10th Sep 2012 at 18:46
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owain

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Post #35
To match what aspect of the fronts? You just mean appearance-wise? I'll warn you even with a bias valve you'll struggle, in the wet I can still lock up in the wet with the valve on minimum.

If you've removed the ABS you'll just spend the whole time with the rears locked if you're not careful.

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Posted 10th Sep 2012 at 18:47
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anth

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Post #36
Larger discs will give more leverage will it not, which would make locking up even eaiser?

Posted 10th Sep 2012 at 18:50
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owain

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Post #37
Not if he's planning on running the same size pads, only advantage will be that more material means a lower running temperature. However running bells generally means less material again, so I don't think there'll be any net gain except for in cost.

The problem with having "better" brakes is you'll have no control over them - they'll be nothing at all, or a lockup. The fact that standard brakes are so s**t is actually an advantage when the back of your car is so light.

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Posted 10th Sep 2012 at 18:52
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fatlapit

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Post #38
Correct anth however certain bias valves will operate different ranges of force. tbh i must admit its more for looks an if i run 90-10 i think it will be safe if its still bad i will turn the rears off.

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Posted 10th Sep 2012 at 18:55
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owain

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Post #39
fatlapit wrote:
tbh i must admit its more for looks


Now that's a reason I can't possibly argue with, that's fair enough Thumbs up

You're right, take a look about and find a valve that goes from 0-100%, as you'll need to pretty much turn them off under certain circumstances, my valve doesn't go to 0%.

Just be very careful where the lever is as well, I know someone who used to have one of the level valves just inside the door, so every time someone got it they'd knock it to full rear, then s**t their pants as the rears screeched still as soon as you touched the brake Doh

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Posted 10th Sep 2012 at 18:57
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fatlapit

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Post #40
Lmfao mate i'm gonna try and dash mount it if i dont like it next to the handbrake.

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Posted 10th Sep 2012 at 19:05
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fatlapit

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Post #41
Tilton lever does 0-60

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Posted 10th Sep 2012 at 19:06
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welshpug!

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Post #42
probably better off using a twin mc pedal box.

there are handbrake calipers that are two pot out there, from wilwood iirc.

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Posted 10th Sep 2012 at 19:15
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fatlapit

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Post #43
Yeah welshpug thats an option. i just like to have confidence braking i need to know that they are gonna work .

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Posted 10th Sep 2012 at 19:20
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T400 PUG Banned!

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Post #44
most people need brakes that work Thumbs up best setup i reckon is a 310 renault sport monoblock setup. light and can still use 16s.
Posted 10th Sep 2012 at 21:31
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ballardpaul

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Post #45
Nope definatly a 315mm ap racing setup.

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Posted 10th Sep 2012 at 21:58
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fatlapit

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Post #46
I got 17s so i think 330 is a better option

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Posted 11th Sep 2012 at 03:29
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T400 PUG Banned!

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Post #47
ballardpaul wrote:
Nope definatly a 315mm ap racing setup.


fair enough. Love
Posted 11th Sep 2012 at 08:15
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ballardpaul

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Post #48
330 must look uber big. Dont think I've seen a kit on a 6 yet in the flesh.

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Posted 11th Sep 2012 at 09:59
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pete_rallye

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Post #49
My btcc car has standard discs with small 2 pot ap calipers on the back. My old grp a car had standard calipers with a hydraulic handbrake (with cables still attached) and it was ace, handbrake worked superbly. Although it did have a bias bar and a bias valve to the rear, so if you set the bar to max to rear, and then set the lever to min to rear, you had no brakes, which was fun! My old track car had the load compensator removed and locked the back brakes far too easily. So I fitted an AP lever brake bias adjuster to take some braking force away from the rear, which worked nicely.

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Posted 11th Sep 2012 at 10:29
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fatlapit

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Post #50
ballardpaul wrote:
330 must look uber big. Dont think I've seen a kit on a 6 yet.


its a ksport kit one of my german mates on facebook runs them and they look the tits Smile

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Posted 11th Sep 2012 at 12:20
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