Brake Dust On Rear Wheels, Not On Fronts - Gti6 Front Setup

[wildejon 7]

So, since I did my gti6 brake conversion up front I have noticed that the rears seem to be kicking out a lot more dust than usual and certainly more than the fronts.

Did I need to do anything to the compensator during this swap? It is a 1.6 setup as far as the servo, m/c and brake lines go, only diff is the 1.9 rear calipers and the gti6 fronts.

[Anthony 1,003]

Sure it's not just down to the pads that you've got on the front calipers not being as "dusty" as whatever is on the back?

 

In my opinion, you need *more* brake force to the rear when using the likes of GTi-6 brakes on the front, which would mean more dust, not less.

[jimbean 0]

So, since I did my gti6 brake conversion up front I have noticed that the rears seem to be kicking out a lot more dust than usual and certainly more than the fronts.

Did I need to do anything to the compensator during this swap? It is a 1.6 setup as far as the servo, m/c and brake lines go, only diff is the 1.9 rear calipers and the gti6 fronts.

 

 

The 1.6 set up is designed for drums and does not have any restrictors to drop the pressure to the rear

 

It also has 3 outlets from the master (one per side.. front) and the third splits at the rear axle to get the rears working

 

The !.9 / rear disk.... use restrictors on the rear brake lines to lessen the pressure to the callipers....but it also uses a 4 outlet master cylinder"i think"

 

If you have more braking to the rear it may try and overtake the front which could be bad

 

An easy way to check is to take it to a mot testing bay and ask them to check the brake set up

 

Watch the dials when they do the test.... the rear should have slightly less stopping affect than the front....

 

If yours does... it will be fine

 

If not... just fit the 1.9 resrictors to the rear lines

[Tom Fenton 1,585]

The 1.6 set up is designed for drums and does not have any restrictors to drop the pressure to the rear

 

Not strictly true, the 1600 has a compensator mounted on the NS chassis rail.

[jimbean 0]

Not strictly true, the 1600 has a compensator mounted on the NS chassis rail.

 

 

is that the on at the front??

 

that is a compesator but does not controll the pressure very well

 

it is a ball bearing in a tube on a slope

 

when the stopping affect/ gravity move the ball up the slope it cuts the pressure the the rear

 

i like to have controlled braking to the rear and use the restricters/ brake bais

Edited July 23, 2009 by jimbean

[Anthony 1,003]

Have you actually ever run disks on the rear of a 1.6 compensator setup, or are your just theorising?

 

I have for over 30k miles, and it works very well, both on the road and on track, in sun, rain, or snow, and it's perfectly reliable unlike the 1.9 compensators. I've done quite a few disk conversions on 1.6's for others, and all of them have been happy as well.

[jimbean 0]

Have you actually ever run disks on the rear of a 1.6 compensator setup, or are your just theorising?

 

I have for over 30k miles, and it works very well, both on the road and on track, in sun, rain, or snow, and it's perfectly reliable unlike the 1.9 compensators. I've done quite a few disk conversions on 1.6's for others, and all of them have been happy as well.

 

 

i also am using a similar set up on my gti 6

 

all i am thinking is if there is an amount of brake of brake dust at the rear it "may" be braking too hard.....

 

And been a tester i use the brake machine an a daily basis

 

if you know how much power/bhp you have.. would it not be benaficial to know also the brake figures?

 

i like to check out the braking of the vehicles as i do them to find a good powerfull brake

 

the standard 205 /306/106 rear disc brakes give out very poor readings on the foot pedal.... (standard pads/discs)

 

but the drums are usually very efficient

 

the later disc set up 307/308 207... seem to have a lot better rear brakes both on foot and parking

 

on a good hard braking car i like to see a very good pressure at the front and 3/4 and least 1/2 of that at the rear

 

 

 

so the 1.6 setup on rear discs may be perfectly good....

 

all i am saying is i want mine to be s*it hot.... so playing with m/c/.... amount of brake lines.... resrictors/bias

 

but i always check them on the rollers

[wildejon 7]

Wow, thanks for the response. I think I'll get it on the rollers and go from there.