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Injecting fuel AFTER the blower?

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Old 11-07-2007, 07:26 AM
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Default Injecting fuel AFTER the blower?

Any opinions? Will the blower live running dry or will it require fuel passing thru the blower to keep it alive?
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Old 11-07-2007, 08:58 AM
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Roots style needs fuel through it...if thats the type your asking about.
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Old 11-07-2007, 09:21 AM
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did they have fuel running thru them when they were conceived as a detroit diesel? That's where they came from, 6-71 DD.
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Old 11-07-2007, 12:07 PM
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I know a friend of mine did it he used a small injector that only provided fuel under 2000 rpms just to cool the blower works quite well....
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Old 11-07-2007, 01:16 PM
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The new blower motors merc have the injectors in the intake.I was told that this is more fuel effeciant.I would think it would have more throttle response also.It will make the intake a little taller.

Also was told that with fuel running thru the blower,it cools it,makes it tighter[ie more boost],will cool the innercooler better.

Even the Merc 850s can burn a hole in the piston

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Old 11-07-2007, 05:04 PM
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My question arises from wanting more even fuel distribution. I want to put the exact same amount of gas in every cylinder all the time, every time. Its better for the motor and my cat really sits bow high and I fear raw fuel at lower speeds and when coming on plane heading to the rear cylinders and starving the fronts just as the boost comes on. Besides, I hate changing plugs on hot motor.

I just need to know if the blower can live set up that way.
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Old 11-08-2007, 07:34 AM
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They only way that will ever happen is with direct cylinder injection, most systems cannot be timed just to fire on cylinder intake degrees. Like at intake at precisely 60 degrees.
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Old 11-08-2007, 12:08 PM
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Gravity and boat motion will have no effect on the concentration of fuel/air vapor being pushed into the cylinders. The only time this would be a concern is on a carbd setup due to the float bowls. The fuel sloshes and could theoretically starve a motor when the level changes location.

Not to worry if your carb is setup right...

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