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Ninjasean2005

Brake Upgrade

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Hi everyone I am thinking of up grading my front brake calipers on my 1991 G60. Are Girling 60's a suitable upgrade? As I have a set sitting in my garage, What are the pro's and con's of fitting them?

 

Thanks

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Personally I would not bother upgrading to multi-pistons on a sliding caliper design. I'd go to 4 piston fixed caliper, but not a 2 piston sliding caliper.

 

Cons

1/ You may need to change to a different brake master cylinder as the Girling 60 calipers have 2 pistons so they require a greater volume of brake fluid.

2/ If the calipers are not brand new then you risk uneven braking as with 2 pistons each side instead of the usual 1 there is "more to go wrong".

3/ You may cause the brake bias to move too far forward and you will then need to adjust the rear brake proportioning valve.

 

Pros

1/ 2 smaller pistons will give increased effective disc diameter and you can use larger pads.

2/ Even pad wear as the pad is better supported over its entire length resulting in more even pressure.

Edited by DriverVR6

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Mine is non ABS, does that mean my master cylinder isn't big enough to power the girling 60's?? :( I know they are fairly meaty, but the stopping power I think they could be worth the gamble.

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I'm sure the non abs m/c can be changed to a bigger bore,which will help with multi piston calipers !

Google should help

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Thanks for all of you help and advice guys, but I have decided to stick to original with the exception of braided brake lines and all new pipe with refurbed brake calipers

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I ran the 22mm MC with Brembo 4 pots from a, cough!, renault. The renault runs a 22mm as standard so they worked well.

 

If you need a slightly larger MC, you could go for a 23mm from a seat or a ford, they only need a small spacer to fit and are commonly sold on ebay.

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