Quote:
Originally Posted by MartinClan
The brakes on that were equal to any modern car. That's why I suspect the combination of Metro Servo and BMW linings.
Robin
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Robin
I am with you on the Metro servo - it only offers 2:1 boost. My A4 has, I beleive, over 4:1 boost, so the effort in the Marlin will be twice that of my A4. I have tried to locate a servo with a bigger boost, but am restricted by the diameter (as I guess the Sportster is)
During my searches I have been told some modern cars are running a pump off the engine to generate a vacuum (I guess to do away with the inlet manifold vacuum and help control emissions better?)
It therefore struck me that if the servo can not change in diameter, perhaps the vacuum pressure could be increased if there is a pump to contol it?
Is anyone aware of a car with its own vacuum pump? - and if so what pressure does it run at? - and could it be increased to offer a greater boost from the same sized servo?
Mike
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