impco 425 for blow through 3

[lcturblow]

hi i was wondering if anyone has used the impco 425 as a blow through. i have a 4.2 landcruiser with supercharger
and each time i put the hat on it suck's the diaphragm
open and stall's engine any help would be welcomed

 

[IceStationZebra]

I don't know anything about the impco carb, but on gasoline carbs one successful method for blow-through is to put the whole carb in a pressurized box so you still maintain the necessary pressure differentials. This would work if your diaphram is referencing atmospheric pressure.

ISZ

I have included these links for the pictures.

http://www.paxtonauto.com/systems_1001845.html

http://www.superchevy.com/tech/0309_sc_vortech_f_body_centrifugal_supercharger/

 

[vibbetje]

Hello,there is a balance plug on the carb. You need to put a line from this hole and connect it to te pressure side above de valve so de pressure is the same above and onder the valve. I hope this solves your problem. greets from The Netherlands.

http://www.rocketolds.nl

 

[lcturblow]

thank you vibbetje this sounds like the answer i have been looking for very helpful.thank you lcturblow