[Diy_efi] EFI system data

William Shurvinton shurvinton at orange.net
Thu Jul 25 12:12:52 GMT 2002


Please define better. I think you will find that the turn-off time is more
related to how the flyback clamping circuit works. I have a scope on my car
at the moment and can compare traces with a P&H drive and a resistor. I
doubt that I will see any difference without an accelerometer on the unit,
and even then there is fuel at 35PSI trying to push that pintle/disc back
onto its seat.

Bruce B has been playing around with homebrew EFi for over a decade now.
Have a read of his stuff. Might save you a few heartaches.

Bill
----- Original Message -----
From: Kent Martin <kentmartin at froggy.com.au>
To: <diy_efi at diy-efi.org>
Sent: Thursday, July 25, 2002 5:32 AM
Subject: Re: [Diy_efi] EFI system data


> Yes turn on time may be neglible, but I believe that they
> will take longer to close due to the extra energy stored in the
> coil compared to a p&H type where less energy is stored in the
> coil during the hold time and will close faster. I know you can do it
fewer
> timers
> with the ballast resistor type I have done it before, this time
> I want it better.
> Kent.



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