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AHHHHH, the power of obsevation! Look what I found in my carb

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Old 10-06-2002, 10:20 PM
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I am why were the carbs in a box ???
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Old 10-07-2002, 12:56 AM
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super charger would be my guess
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Old 10-07-2002, 07:06 PM
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Yes they are supercharged. sorry.
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Old 10-07-2002, 07:21 PM
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Hey Ken, glad to hear it was something simple this time, I know that boat has given you some tough times in the past
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Old 10-07-2002, 08:05 PM
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H2X, yeah, it has been a tough season. Now the boat is running great! Just in time to put her away for the winter
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Old 10-07-2002, 09:39 PM
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Now I'm curious. What kind of supercharged setup?
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Old 10-08-2002, 06:33 AM
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Tomcat, they are prochargers. Somehow the vacuum line cap came loose, the one at the rear, bottom of the carb. It must have bounced around and followed the air flow and ended up where it did.
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Old 10-08-2002, 06:52 AM
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Tomcat- In all of your flow testing have you done any testing with & without flame arrestors?

Ken- did you try your system with the flame arrrestor & did you see a difference in performance? Did motor backfire & that blow the vacuum cap off?

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Old 10-08-2002, 09:14 AM
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Turbojack

When I did my flow testing in the spring the results @ 28" H2O were as follows:

Carb - 985 CFM

Carb with small flame arrester - 860 CFM

Carb with flame arrester inside
carb box, tubing and intercooler - 594 CFM

The flame arrester was only 6" dia and 3" tall because that's what fit inside the box. I understand that the flame arrester is used because it helps settle down the turbulence. eg. 1000 CFM inside a 3.5" dia tube is going 170 mph. I don't think carbs meter fuel properly under these conditions.

Ken

What Procharger system do you have, what size intercooler?
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Old 10-08-2002, 09:27 AM
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TC- I guess that this would be a good reason for EFI
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