Date: 12 May 2002 15:29:40 GMT From: frankgrunnopsamcom (FrankGRUN) Subject: Turbo Boost Pressure Distributor Retard
I'm working with the 1986 16V 2.0L SAAB 900T engine. I'm trying to replace the ignition coil with a Crane HI-6S ignition amplifier and coil. This unit has the optional ability to electronically retard the timing with increasing manifold pressure (using a MAP sensor). This is the same function mechanically accomplished by the diaphram on the side of the distributor. Can anyone tell me how many degrees the ignition is retarded for each psi of boost? I can't find the specification anywhere. Of course, I will be keeping the full APC system in place with the exception of blocking off the port to the retard diaphram. Thanks