General question

thomas walter x5955 walter at roadster.sps.mot.com
Fri Dec 22 15:23:00 GMT 1995


Orin,

On a MGB witha  5 port head, biggest problem with fuel injection
is timing the injection cycle. Since the intake ports a siamesed
the injector needs to be on ONLY during the time when the intake
valve is opened... the sysem would have to be a sequential mode,
preferably timed to the closing of the intake valve.  To have the
injector big enough for WOT throttle may result in a poor idle.

David Vizard went to great lenghts to get a Weber to deliver 
proper flow in his book on "How to modify your Mini". Book is
long since OOP (out of Print), but highly recommended reading.

Hmm... Peter Wales has been quiet, but hopefully can add some
thoughts. (Most of the list is V8 people, who a 5 port head
seems a little "different" ;-)

Cheers,
Tom Walter
'67 Datsun 2000  '68 Datsun 2000  '71 & '72 Datsun 510's
[hate this line edit mode... not on his Workstation]



More information about the Diy_efi mailing list