[urq] 85 - Brake conversion questions

[Buchholz, Steven]

Given the fact that bomb failures are a well known issue for all turbo'ed Audis it  is difficult to make any claim about the improved safety of the hydraulic assist.  I suppose the vacuum servos fail too, but I don't hear very much of them.  The concern is that there will not be sufficient assist vacuum built up in the reservoir because the engine is on boost ... a buddy of mine had a Toyota Supra Turbo ... on that car there was an auxiliary electric vacuum pump that ensured there was ample reserve ... certainly a similar scheme could be fitted to an Audi should the owner be worried about a loss of assist.  

I've got an idea ... use a spare pneumatic lock bi-pressure pump!  (joking of course!)

Steve B
San José, CA (USA)
> 
> I wouldn't worry about having vacuum assist instead of the hydraulic system.
> Audi apparently isn't, as all the new VW/Audi turbo cars use vacuum assisted
> brakes.  While I have heard of a couple of vacuum booster failures, noone has
> complained of losing brake control.
>