I have a em-3 system w/ 2 sets of coil packs. also I am using 6 550cc injectors. 2 for the primary and 4 secondary. My engine I believe is a 88 or 89 turboII that is streetported. turbo is a turbonetics to4 60-1. I wanted to compare my ignition curve and fuel maps with somebody running a similar set up. also wanted to know how to adjust trailing spark timing, or is it not ajustable on the sds unit. also adjustment for the secondary injectors? when do they come on?
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first,the 6 injector setup will not work ok.sds came to work in 4 or 8 inj. only.in rotary i run a sds coil pack for leading and a crane dis with retard option for the trailing so you can split the timing.i run at 20 degree at rpms and retard at boost,at 15psi boost will drop total timing to 15degrees leading and 5 in the trailing,at 18psi it produce 452hp with mufflers and a 62-1 turbo.i will keep this timing all the way to 20psi if a/f ratio is around low 11's more than 20psi add race gas.personally i like 4 1600cc injectors.pretty hard to tune but i can share you some numbers.
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thank u for the info so far. a couple of more questions if u dont mind? how do u split the timing. do u have a schematic that i can follow? and also about the injectors... i was running 8 550cc injectors, but it was too rich, so i just unpluged two of the primary injectors. do u think that u can help me out with some numbers for running 8 injectors, or maybe just 4 of the 1600cc injectors. and also if u can please e-mail me any schematic, fuel, and timing maps. thank u. chako213@sbcglobal.net
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