The recent discussion of TR6 cylinder heads brings up a subject for which I
anticipate to come up next year.
A friend and myself both have TR6's and my friend has family in Australia. A
recent visit from one of the Australians (he is a car guy) brought up the
subject of Lucas PI systems as used on the six cylinder TR engines. Our
Australian friend is going to check on getting two complete PI systems shipped
back to us for possible installation on our TR6's. They are basically throw
away items in Australia at this point so we probably will have more in the
shipping cost than in the actual components.
The web site www.lucasinjection.com has been somewhat helpful but I'd love to
hear from someone with first hand experience with converting a carburated 2.5
Triumph engine to Lucas PI.
What cylinder head is needed for use with the Lucas PI system? My car has the
later (wide port spacing) cylinder head. My friend's car has the earlier
(narrow port spacing) cylinder head. Rimmer Brothers shows two injection
systems early (to commission # CP5000) and late (from commission # CP50001).
Is the differences for spacing of the cylinder head ports?
Are the ignition distributors different?
I realize they are more modern alternatives for fuel injection (Rick Patton's
electronic injection, etc) and from a purely performance/reliability
standpoint the modern electronic system is probably a better choice. I'm
trying to gather some input to try to determine which way to go. I'm actually
leaning toward the modern system electronic system but my friend wants to go
the Lucas PI route.
Terry Geiger
'74 Triumph TR6 | '63 Triumph Herald | '70 MGBGT | '84 Mercedes 300D Diesel
http://www.shoalsbritishcars.org/
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