9 replies to this topic

[BudgieCake]

Hello Gents, I have a predicament. Im switch over to a wilwood pedal box and the bore sizes I can choose from are 5/8, 3/4 & 7/10.

 

I am running the later rear cylinders which is 3/4 I believe? and up front I will be fitting the KAD 4 pot brakes (7.75s) 

 

In my basket I have bought 3 master cylinders. One for the clutch, rear brakes and front brakes. Sizes are that follows

• Front brakes - 3/4 bore
• Rear brakes - 3/4 bore
• Clutch -  7/10 bore

Does all this look up to scratch before I do some wight saving wallet business? 

 

Cheers, and dont worry what im up to lads 

[nicklouse]

Nope.

 

5/8 front

7/8 or 1” rear

 

depends on the rear weight. 
 

clutch same as standard. 

[BudgieCake]

Nope.

 

5/8 front

7/8 or 1” rear

 

depends on the rear weight. 
 

clutch same as standard. 

Mr Louse, my hero, you are

[nicklouse]

Just taken from the KAD info that comes with their brakes.

 

if you want I can give you the sizes I have on mine. Later on after I have slept.

[Spider]

What's the Pedal Ratio on these ?

Might want to take that and total Pedal Travel in to account as well.

[BudgieCake]

I'd appreciate that Nick!

MokeSpider, gosh don't throw another variable into the mix! It's the adjustable 6.25 box. I would be afraid of drilling the pedal if needs be to change about the pivot and throw of it. Glad you pointed it out!

[Spider]

I'd appreciate that Nick!

MokeSpider, gosh don't throw another variable into the mix! It's the adjustable 6.25 box. I would be afraid of drilling the pedal if needs be to change about the pivot and throw of it. Glad you pointed it out!

 

Hehehehe,,,,,,

 

No need to change the Pedal Ratio, but it really needs to be taken in to account when working out M/C Bore sizes.

[BudgieCake]

 

I'd appreciate that Nick!

MokeSpider, gosh don't throw another variable into the mix! It's the adjustable 6.25 box. I would be afraid of drilling the pedal if needs be to change about the pivot and throw of it. Glad you pointed it out!

 

Hehehehe,,,,,,

 

No need to change the Pedal Ratio, but it really needs to be taken in to account when working out M/C Bore sizes.

 

Ill have to have a little poke about on google

[nicklouse]

Ok I got the KAD bias box with the AP RACING MCs one is 0.875 and the other is 0.625

[BudgieCake]

Ok I got the KAD bias box with the AP RACING MCs one is 0.875 and the other is 0.625

Perfect, right Ill get them ordered! Appreciate that lads. I read somewhere that manual braking ratio is usually 6:1 where as servo assisted is 4:1, how true that is im not sure but I think I will just send it, when the car goes arse over tit Ill let you know that the pivot point is wrong! Haha,

 

Cheers, Tom