I believe your thinking of Imjection Research Specialists, they owned all the patents on the early EFI for two-strokes sled motors.Originally posted by cat-sass
[br]Doesn't Polaris make a Performance sled with fuel injection?
Or were you thinking of something else?
Early 90's, a company called Independent Research Specialtys (IRS)
had some programmable fuel injection units available (limited supply)for the AC Wildcats and El Tigres.
required a lap-top computer to tune. Kind of primative, compared to todays Boondocker Boxes, etc.
You have to look at the weather reports and the elevation that you will be riding at.Originally posted by anzak
[br]My sled is an 06 600 Fuse, I have already installed a tempa-flow. I just hate carbs they are never tuned to the conditions (nature of the beast).