Non-Vented Nozzles In Hat

Can a person run non-vented nozzles in a supercharger hat? Any real problems with doing this? Trying to cut down the minimum idle air leakage rate and figured eliminating the total nozzle vent area might help.

Thanks.

 

nozzles

non vented in hat will try to suck fuel and keep running

 

nonvented

I went to non vented so that fuel wouldn't spray on windshield in the shut down area. Saw no change

 

I've always run non vented nozzles up top. It always shuts off when I pull the fuel shutoff.

 

nozzles

You can use them anyway you want but they are made for a reason-go to page 79 kinsler catalog

 

You can put a couple on nozzle checks to help get your idle where you want it and then set them to open just above idle. Don't get too carried away because not enough fuel in the hat WILL stick the rotors to the case.

 

Vented nozzle bodies were designed to improve atomization of fuel through the nozzle by drawing air in through the orifice. Originally designed for mechanical gasoline fuel injection systems where this is important and beneficial. On supercharged methanol engines this in fact not necessary. latent diffusion of heat is better utilized with a wet rotor (using the heat energy of the rotor) and atomization is achieved as the rotor displaces its volume through the discharge port.

We rarely (if ever) use a vented body in anything blown alcohol we build or sell at DMPE..

Good luck

 

Agreed.......thanks.