Can you run 1600cc injectors on a pfs (purple) ecu?

 

does anyone know?

 

Yes ,,but you must put in bigger primary injectors to keep the 39 percent ratio drop . For more info ,ask if no one else chimes in.

 

The purple box itself has no additional injector control....

 

no not additional injectors I mean just secondary 1600cc injectors. and please explain more why I would need to get bigger primarie's?

 

because you need to keep the .39 ratio ...

 

because there is no injector size settings...so if you drop 1600cc in there, how is it going to know? keep the same ratio of injectors and lean the fawk out of the maps (not literally...but I would guess the maps would be in the negatives to achieve 11.7 A:F) you could possibly get it tuned correctly.

I've never heard or spoke to anyone that did this...only idea's have been passed around, that I know of. For 1600cc's you would need something around 1035cc's for primaries. Maybe if you use 1300cc's you could use the 850cc's secondaries for the primaries.

 

Carlos (aka spicracer) put in large secondary injectors, but also changed the primaries to keep close to the .39 ratio. Don't know if he is still running the PFS PMC now. This was 4 years or so ago.

 

I was wondering a similiar thing for my Pettit Unlimited ECU. I was thinking 1300's in the secondarys.
Learn me more about the 39% ratio.. Im assuming its from the Primary sized to the Secondary.