AHHHHH, the power of obsevation! Look what I found in my carb
#17
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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.
#18
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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?
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?
Last edited by Turbojack; 10-08-2002 at 08:26 AM.
#19
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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?
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?