Originally Posted by
silver_beast98
somebody else should have a little more insight on this but im fairly sure they get them up to 200hp with the distributor setup and an egt guage for monitoring how the engine's running no problem... while we're on the subject of tuning and predetination, it is my understanding that since gst's have electronic ignition, they have a multidementional map for ignition and fuel. the way a safc works is by taping into the maf signal and tricking the ecu into seeing more or less air than what is actually being taken in... since the ecu see's less air, it adjusts fuel how it thinks is needed... byproduct is our allowance to richen or lean out the mixture... but, on the gst ecu, since ignition is also on the map, fooling with the maf signal much can cause predetination or retardation depending on wether you lean or richen (respectively) the mixture...
but if you are using stock injectors you should only have to use it for very fine tuning and i dont think it would mess up your timing too much... also i would suggest an adjustable fpr to help out...
so understanding the ways of an safc has made me very wary of any afc or even maftrans, but on our setups it should be no problem, as im fairly sure the ecu has no way to adjust spark timing...
lots of pros and cons to factor in...
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