Come to think of it, maybe this subject was on banned. Can't recall, now. Ought to confuse the hell out of the Striplin MB list, then. _____________ Here's the answer to the question about 914 injection over it's production years. The source is Porsche Panorama's Tech Editor. He was formerly the 914 info source, and later the mid-911 expert on the National Tech Committee. _________________
Hi Roger, Gee, what a fun question to answer. As I discovered at both Tech Tactics and Cimarron Tech, it is about as hard to get anyone interested in 914s as it is in 997s. Anyhow, unlike Europe, all US 914-4s were fuel-injected. In the US, we got three 914-4 fuel injection systems: 1. 1.7 liter engines (1970-1973):D Jetronic (or MPC, manifold pressure control). Distributor trigger points are used to time the injector pulses. 2. 2.0 liter engines (1973-1976). Also D Jetronic or MPC fuel injection. Two liter ignition distributors with trigger points now cost over $1,000 in the Performance Products Catalog. 3. 1.8 liter engines (1974-1976): L Jetronic (or AFC, airflow control) injection. The 1.8 was an "upgrade" (and replacement for) of the 1.7 engine. The AFC system was essentially an analog version of the later DME used on the ‘84/'89 911 and 944. With the AFC, the CPU uses spark impulses as a basis for injection pulses, so no trigger points are needed in the distributor. So, the answer to your question is that distributor trigger points were used on all US 1.7 and 2.0 914-4s; ‘70-'73 on the 1.7s and ‘73-'76 on the 2.0s. Also note there were another 2000 1976 US 912Es made with 2.0 914 engines that had been updated to the AFC injection so they did not use the trigger point type distributor. ___________ RLE
