Covert carb motor to DFI

shallowsport

Cadet
Joined
Aug 6, 2008
Messages
7
I have a 1996 Evinrude 150. Good running motor, but burns way too much gas. Is there a way to convert/update this motor to DFI for better mpg?
 

tashasdaddy

Honorary Moderator Emeritus
Joined
Nov 11, 2005
Messages
51,019
Re: Covert carb motor to DFI

buy an Etec. your motor at wot, is going to burn 15 gallons per hour.
 

kenmyfam

Supreme Mariner
Joined
Aug 10, 2006
Messages
14,392
Re: Covert carb motor to DFI

I have a 1996 Evinrude 150. Good running motor, but burns way too much gas. Is there a way to convert/update this motor to DFI for better mpg?

It does not burn way too much gas, it burns what it needs. Smaller motor will burn less but give less performance.
I would certainly not consider changing from carb's
 

reeldutch

Lieutenant
Joined
Feb 2, 2004
Messages
1,340
Re: Covert carb motor to DFI

the reason its burning so much gas is that you have an intake port and an exhaust port open for some duration at the same time. Waist of gas.

the DI models Ficht and E-tec inject fuel directly into the combustion chamber when the ports are closed.piston closes the ports than it will inject fuel.
so no waist of fuel.


you cannot convert it to an DI engine that will be fuel efficiant.
you will need to oil the bearings and crank,instal new pistons, cylinder heads, injectors sensors different stator 55v a lot of stuff that make it not worth it.


there are 2 stroke outboards that have fuel injection in the intake part of the engine.
same thing as the carbed engines just they have injectors instead of carbs.
ports are still open at the same time to transfer the fuel/exaust.

it will take a hack of a lot to convert to this system with your carbed engine.
you wil have to install a engine speed censor,trothle position sensor, control unit, electronic fuel pump, wiring plumming, injectors,presure regulator and a lot more.
i wouldnt recomend doing that.
 
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