I am currently the owner of a VW 1966 Karmann Ghia with a 12V and 75A alternator upgrade. I am running a full set of '71 Porsche 914 gauges, but would like to replace them with a newer set. I have bought a used instrument cluster from a 1999 Porsche 986 Boxter and am trying to figure out how to install it. I have a wiring diagram for the porsche, and am wondering what sort of sending units I should use to make the panel work. My main concern is of course the Tach and speedometer inputs. The old speedo was cable-driven, and so am having a bit of trouble finding documentation on the calibration of the gauges. I'm wondering if I can install 986 sending units in my type 1 VW aircooled engine; it's an air-cooled 4 cyl with a classic Bosch 009 distributor and a HP Mallory promaster ignition coil. I figure I can hard-wire the lights themselves, but I'd really like to get the gauges working. Is there any way to bypass the ECU to also wire the Tach and speedo?
I am not too interested in making every single panel light work, just the main gauges and a few of the indicator lights such as the fuel, turn signal, high beam, and possibly oil pressure lights. I would greatly appreciate any input you may have at your end, knowing what you do about these matters. Thank You for your time
Eureka Springs, AR
Saturday, February 4th, 2006 AT 7:42 AM