Supercharger info

Chris Morriss crsm at oroboros.demon.co.uk
Wed Aug 12 18:56:22 GMT 1998


In message <3.0.5.32.19980812114033.008a36b0 at southern.co.nz>, Mike
Morrin <mikem at southern.co.nz> writes
>>Chris Morriss wrote:
>>>  Imagine that the engine is
>>> loaded such that it requires the same amount of fuel per revolution at
>>> 6000 rpm as it does at 2000 rpm.  The MAF at 6000 rpm is going to be
>>> roughly 3 times as much as at 2000, 
>
>Are you saying that the air/fuel ratio is varying in proportion to RPM?
>smells fishy to me...
>
>regards,
>
>Mike Morrin
>
>
No I was saying just the opposite.  If you fired the injectors once per
engine rev, with the pulse duration directly related to MAF, then you
would get a varying A/F ratio.

Have a look at the books that explain how L-jet works.  You'll see that
there is a rather crude multivibrator division circuit to get it all
correct.
-- 
Chris Morriss



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