Thread: Checking in

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Originally Posted by rspears

Did you get into the E85 or E100 EFI business?

Originally Posted by Dave Severson

Yup, We're starting to get a hand on it, with a lot of help from a tech at FAST and a lot of trial and error! Injector sizing is a "challenge", not too bad with the 85, but the 100 needs a size no one makes!!!!!!

E100 - maybe two smaller injectors per cylinder (maybe not the same size?) with half of them only coming in at WOT so you can still get enough turn down for a good F/A ratio in the idle to mid-range? Just "thinking out loud", and likely a crazy thought. Good to have you back.

Originally Posted by rspears

E100 - maybe two smaller injectors per cylinder (maybe not the same size?) with half of them only coming in at WOT so you can still get enough turn down for a good F/A ratio in the idle to mid-range? Just "thinking out loud", and likely a crazy thought. Good to have you back.

Well, that was part of the scheming early on.... sort of like an old recip aircraft fuel enrichment circuit. I still think it's a doable thing, but if we add the second set of nozzles it might as well be the dual inlet style, with the second one spraying a bit of nitrous.... Rog's daughter's dragster is now a 4.6 with a kenne Belle supercharger and a second pump to add fuel volume at WOT. Amazingly simple system, very tuneable, and added a bunch of horsepressure on the big end! Now, if I had as much money as I have spare time and crazy ideas, we could really go fast!!!!