I had an idea, tell me that it cant be done.

Ok the way the flapper door works is by opening and closing to measure air in the given space. So when the door is open all the way the computer has no clue how much air is getting in on a modified engine, only on stock.

So how about running a second airfilter and a pipe to bypass the AFM and join up with the intake pipe upstream of it. It would have a butterfly in it and a solenoid. The solenoid would open up whenever the AFM read full open.

Of course this would probably be only beneficial to those with TII or with plenty of mods where the afm is the restriction but with lots of fuel it should work.

 

anyone to say it cant work? im sure i overlooked something!

 

If you do this, the engine will suck more air at high rpm/high speed than it knows it is... it wont be able to match enough fuel to the air coming in because you are fooling it into thinkting its pulling say 5 m^3 a second instead of say 8 m^3 a second. This is going to give ya a lean situation which=roasty toasty apex seals. If you've got so many mods, why not include a haltech in your list? From what i understand they eliminate the afm, that way, 0 restriction. Your mechanism for operating this thing is pretty cool, but would be hard(i think) to implement. Just my thoughts..


~Jesse

 

I was thinking it might work since the computer doesnt know how much air is going in when the AFM is wide open when the car is anything but stock. Im sure a stock car can open the AFM all the way so the comp sees no diff between that and a car with full exhaust and intake (NA).

 

I suppose this might work if you had an S-AFC so you could tune the fuel ratio's when the second filter opened up.