FROM CARBS TO EFI
Thanks to the new Weber Retroject throttle body from Britainbased fuel system specialist, Webcon, converting your carburetted classic to electronic fuel injection has never been easier. Essentially, Retroject is a dual injector throttle body designed to directly replace the Weber 32/36 DGV and 38DGAS. The critical dimensions are identical (height 86mm and mounting stud hole centres of 93x46mm), including positioning of throttle lever and throttle rotation, meaning it will be quick and easy to remove a Weber twin-choke carburettor, bolt on the Retroject unit and connect the linkage, before adding an aftermarket ECU, loom and a highpressure fuel supply, such as the optional Webcon WFP600. All that’s needed thereafter is a rolling road session to map the ECU. In doing so, you will then have the power, drivability, torque and economy of a modern EFI system on your classic Porsche. It really is as simple as it sounds — no messing about with new throttle linkages, new air filters or new inlet manifolds. Retroject is supplied complete with two genuine Weber 480cc/m PICO fuel injectors, throttle position sensor, air temperature sensor, idle motor, 3bar fuel pressure regulator and two straight 8mm fuel unions (90° angled unions are also available). There is no vacuum take-off for distributor advance, but if this is required, a drilling is provided in the base of the unit for you to take advantage of. For further information, and to place an order, visit the Webcon website (webcon.co.uk) or your nearest authorised Webcon dealer. Ask or search for part number ATB400.