Marelli twin plug distributor for Porsche 911 RS RSR S ST

Description: Raceservice4u Twin plug systems; Twin plug systems were used on many flat 6 Porsche race engines. Examples are 917, RSR 2.8 and 3.0, 914/6, 935 etc. Experts recommend installing a twin-plug ignition system if the compression ratio is higher than 10:1. 911 engines need a high dome piston to get this high compression ratio. The combustion chamber will then almost be split in 2. It will take too long for the ignition flame front to propagate across the combustion chamber. For a high performance engine you need a twin plug system. Most Historic race regulations will not allow you to use contact less, a modern ignition system or a 964 dual distributor. If you must use contact points; raceservice4u has the reasonably priced solution. Specifications; Reproduction of the Marelli twin plug distributor based on a 911 distributor Extra bearing for the rotor.Reproduced distribution capUS-made rotorMaximum advance angel can be changed rather easy. The design is tested on hard race conditionsAll units will be tested on an Allen syncrograph before delivery.Delivered with data sheet. Available Twin plug systems; Twin plug distributor turning clockwise for 911 2.0L and 2.2L with points and shaft 27mm Twin plug distributor turning clockwise for 911 2.4 and 2.7L with points and shaft 30mmTwin plug distributor turning anticlockwise for 911 3.0L. with points.Twin plug distributor turning anticlockwise for 911 3.0L. contactless SC/Turbo system. The prices are from 1450,- Euros. See the RSR Shop. You can also have the exact copy off the Marelli rotor and cap. The quality is better than the originals. Have a look www.raceservice4u.com