I will be getting back to work on my '88 331 turbo true street car soon and wanting to see if anybody has experience with the new AEM Infinity computer. I thought I would run strictly E85 for fuel using my current AEM box. I realized that the distance between E85 stations around me is too far to rely on 100%. I really need a flex fuel option. Is the Infinity a better choice than trying to adapting a flex fuel sensor to my existing AEM box? I still plan on setting this up with cam and crank sensors and LS coil packs.
I've used the infinity on 2 different mod motors, both configured with flex fuel and I must say they are fun to play with, if you have a stick the traction system and limiter options are awesome. Used factory cam, crank sensors and coils.
283ci 4v with AEM flex fuel 72.5% using GM flex fuel sensor
optimised boost vs heat 4th gear run(blue), AG 1-5 (red), 15lbs flat 3500-8000 (green) 68MM turbo 9.4:1 Very conservative tune using individual cylinder knock detection.
If you have a series 2 there should be a software update to include flex fuel calculations. If you have a series 1, go to the infinity and you will be more than satisfied if not ecstatic about what you can do with it and how smoothly your engine will run.
Still haven't decided what to do. The high impedance 160lb E85 compatible injectors that I was waiting on are not going to be produced. Injector Dynamics has some new E85 130 lb injectors that i could probably make due with, but they are beyond expensive. Might have to change my mind again about the E85 and flex fuel. Dumping close to $4,500 for injectors , a flex fuel sensor and new computer is starting to seem like a bad idea.
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