[DeTomaso] Booster talk

[MikeLDrew at aol.com]

In a message dated 7/17/09 23 33 47, Thomas.Tornblom at Hax.SE writes:


> It will still require a fair amount of pressure before it starts 
> reducing the pressure.
> 
>>>What makes you say that?   I was under the impression that a 
proportioning valve does just that--convert X amount of inlet pressure into Y amount of 
outlet pressure.


>  It will have too much pressure on the fronts 
> until that happens. I want well balanced brakes throughout the entire 
> range.
> 
>>>Which is exactly what you should get.   You wouldn't want a non-linear 
system where you got equal pressure until some threshold is reached and then 
the pressure reduces from there.   You'd want the reduction to be constant.
> 
> Come to think of it, having the prop valve in the front cirquit is a 
> stupid idea. During hard braking you get weight shift to the front, 
> and what you need then is to reduce the force on the now lighter 
> loaded rears to avoid having them lock up. 
> 
>>>The weight transfer is so instantaneous that you wouldn't gain anything 
by having increased pressure to the rears initially, then dropping down to 
'proper' balance.   You'd want them to be proper all the time.


> With the improperly 
> balanced brakes of at least my car the fronts will have locked up 
> before you get to this point.
> >
> >>>And you should be able to dial them in so that they lock up just a bit 
later than they do now (which is to say, the rear brakes would contribute 
more to the total stopping cause).

Mike




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