Re: Master Cylinder for Ur-Q G60 Conversion

[JustaxPHX@aol.com]

> I hear that from time to time, and I guess it makes sense, but the old
>  81-83 5kt's had vacuum assist brakes and the one I drove for 6 years
>  never ran out of assist.  Of course I wasn't racing or anything...

You don't have to be racing; left-foot braking is enough to cause a loss of 
assist after a few turns.  At least that's what happened in the '83 5k turbo 
I test-drove a few months ago (almost bought it as a daily-driver for my 
girlfriend, too, but we decided instead to look for a '70s vintage Mercedes 
... no luck as yet).

>  The vacuum does get stored, and anytime you take your foot off the gas
>  it makes more... guess that's the issue, repeated braking with the loud
>  pedal kept activated!

Duane Hale's 4kq had the 2Bennet turbo-conversion in it and they used a 
gigantic vacuum reservoir to store the extra vacuum.  For any kind of 
performance driving, the teeny-weeny OEM vacuum reservoir (it looks like 
three tennis balls glued together and hides behind the driver-side front 
fender) simply isn't big enough...

JG