| [ Total Views: 631 | Total Replies: 4 | Thread Id: 53037 ] |
|
|
 urban_myth
A.k.a.: Jason
Officially Full-On Dubber
Posts: 354
Threads: 60
Registered: January 6th, 2005
Member Is Offline
Location: Sydney
Theme: UltimaBB Pro Blue ( Default )
|
| posted on June 7th, 2006 at 11:40 AM |
|
|
Master cylinder sizes
Me and my dad are sussing out the braking system on the floorpan we are building up for my beetle. We need some info regarding the piston sizes of the
various master cylinders that volkswagen used on the beetle and the kombi.
Just FYI, we are using VS commodore brakes all round and we wont be using a booster. We are looking to make the pedal feel as soft as it possibly can
be without a booster but minimise pedal travel before braking occurs.
|
|
|
1303Steve
A.k.a.: Steve Carter
Scirocco Rare
Posts: 8650
Threads: 564
Registered: August 27th, 2002
Member Is Offline
Location: Sydney, NSW
Theme: UltimaBB Pro Blue ( Default )
Mood: Parrot Heading
|
| posted on June 7th, 2006 at 04:38 PM |
|
|
Hi
Early bugs used single circuit 17 mm later ones used 19 mm, in both single dual circuit. I think Kombis were 21 mm. I was using a stock 19 mm MC with
4 spot Brembos all round, they worked fine.
Steve
|
|
|
urban_myth
A.k.a.: Jason
Officially Full-On Dubber
Posts: 354
Threads: 60
Registered: January 6th, 2005
Member Is Offline
Location: Sydney
Theme: UltimaBB Pro Blue ( Default )
|
| posted on June 7th, 2006 at 11:10 PM |
|
|
Thanks for that Steve. We spoke to a brake specialist and they recommended a 21mm master, any bigger and the pedal would be very hard. So whats the
pedal travel in yours like?
|
|
|
1303Steve
A.k.a.: Steve Carter
Scirocco Rare
Posts: 8650
Threads: 564
Registered: August 27th, 2002
Member Is Offline
Location: Sydney, NSW
Theme: UltimaBB Pro Blue ( Default )
Mood: Parrot Heading
|
| posted on June 7th, 2006 at 11:23 PM |
|
|
Hi
It was like a stock Beetle, just needed a tiny bit more effort. This was on my old yellow bug, I plan to use the same stuff on my new one.
Steve
|
|
|
1303Steve
A.k.a.: Steve Carter
Scirocco Rare
Posts: 8650
Threads: 564
Registered: August 27th, 2002
Member Is Offline
Location: Sydney, NSW
Theme: UltimaBB Pro Blue ( Default )
Mood: Parrot Heading
|
| posted on June 8th, 2006 at 12:00 PM |
|
|
Hi
These piston areas may help you.
Pistons in my front Brembos 37.5 mm & 26 mm
37.5 x 2 = 18.75 x 18.75 = 351.5625 x 3.1416 = 1104.46875
26 x 2 = 13 x 13 = 169 x 3.1416 = 530.9304
so total area for 1 caliper is 3270.7983
Late Type 3/4 calipers are 50 mm, this is what I used previously, now Jak is using them on his WRX bug.
50 x 2 = 25 x 25 = 625 x 3.1416 = 1963.5 total for 1 caliper is 3927
Stock Beetle calipers 40 mm
40 x 2 = 20 x 20 = 400 x 3.1416 = 1256.64 total is 2513.28
Steve
|
|
|
