More musings on pump capacity...

[eric schumacher]

No that is just the point the Bosch pump required that the inlet be bigger
than the outlet.   All you need to do actually is match the tubes on the
pump 3/8 in 5/16 out.  You are right bosch always puts the accumulator near
the pump sometimes along with a device called a muffler which is just a fat
spot in the line.  Actually I don't think there are many transients on the
demand side. The flow is typically pretty even but I don't have any
experience with a timed system.

Lotsa Luck Eric

At 08:49 PM 2/25/97 +0000, you wrote:
>
>> To shift off subject a bit I found in building a system based Bosch CIS
>> components and using the ubiquitous rotary pump that it was very sensitive
>> to the diameter of the inlet tubing as compared to the diameter of the
>> outlet tubing.  It didn't matter what the flow was as long as the goesinta
>> was bigger than the goesoutta all was ok.  
>
>Was are the symptoms of having 5/16" on either side? How do I know if 
>this setup will/is causing a problem?
>
>> I also note that Bosch systems
>> typically use an accumulator to take of those fast demand transients.
>
>The 280ZX has the accumulator just next to the fuel pump i.e. miles 
>of 5/16" until it gets to the filter. How effectively can it 
>supply transient demand if it is this far away? Does the location 
>matter, or is it just taking up the slack in the pressure?
>
>
>
>$$$ MAKE CAR FAST $$$
>bryantt at psc.fp.co.nz
>