N. J, Davies

Good idea Andy. Using the Metering Unit as the reservoir would be ideal and make it all look nearer to original, but how available are redundant MUs? Does anyone know what thread is used on the injectors themselves? Regards, Nick.

Thanks for all replies. There definitely seem to be too many variables and unknowns for the reservoir approach to be viable. So back to the fuel rail - i.e. the tried and tested. Somewhere I read that Bosch EV14 type electronic injectors fit straight into the throttle bodies without the need for any machining. Is this true of wishful thinking? Nick.

Thank you all for the response. Using the Lucas metering unit and driving it electronically from an ECU would be difficult to achieve - me thinks and personally I've dismissed the idea. Fabricating bracketry to retain the injectors would need some deep thought and as would how to attach the fuel lines fuel lines - not insurmountable. EFI systems need a return to the tank that is larger than that required by the Lucas metering unit so that is necessary mod with any EFI system. Would there be an appreciable pressure drop between the 'reservoir' and the injectors. If so, it doesn't seem to be problem with the Lucas system. The advantage of the 'reservoir' approach is that the only mod to the throttle bodies would be the fitting of a throttle position sensor to only 1 of the bodies - this has been achieved on other installations. All the other fittings/plumbing would remain as original. Anyway, just my ramblings. Thanks again. Regards, Nick.

Hi, I've a query regarding electronic fuel injection. It seems that most if not all systems have the fuel rail mounted directly on to the injector itself. Is there any reason why the fuel could not be provided from a remote reservoir and transferred to the injectors via separate lines? The injectors would driven from an ECU. I have a TR6 so I'm thinking that the metering unit could be replaced by the reservoir and the original nylon fuel lines used from there to the injectors. Does this make sense or are there any foreseeable problems. Views would be most welcome. Regards, Nick.