[V8] sanity check, what, from a V8Q owner?

[urq]

No.  On a given engine you would expect little to any mileage benefit from a
sequential EFI system over a batch system ... the number of injectors firing
simultaneously really doesn't have any significant impact on fuel economy.
If all cylinders were the same and the intake charge was identical then all
cylinders would need the exact same amount of fuel and there would be
nothing to be gained in terms of fuel economy.  The fuel injected by the
injectors all ends up getting sucked into the cylinder and burned, it can't
go anywhere else.  Where a sequential system shines is that it can meter
fuel to each cylinder based on the operating parameters of that cylinder ...
modern ECUs and OXS' have the bandwidth to validate the exhaust from each
cylinder and make compensation on a cylinder basis.  That said, I bet that
many sequential systems don't even try to match the valve timing ... 

... minor point ... the V8 engine is a 4-stroke motor, so it actually takes
two times around for all 8 to get a power stroke ... 

Steve B
San José, CA (USA)

-----Original Message-----

If only 2 injectors are firing, surely we'd get better gas mileage??  
The 944 batch fires 4 cylinders twice a revolution and still manages 
around 25-30 mpg.  The V8q fires... yup.. 8 times a revolution.  Two per 
90º, so yeah, bad gas mileage. 

I think someone out there has done stand-alone engine management?  
Anyone worked up sequential?  I know guys in the 944 world have.  
Sequential gas mileage would (in theory) double mpg?