hey guys, just wondering what everyone has done for their balance line scoop and what size hose they used to the balance line. im using twin converters and will be after 350rwkw on 15-17psi

From memory the female threaded fitting into the top of the Impco B2 convertor is 1/8NPT, so I would just get a 1/8NPT hose tail and use some 10mm hose, It's really only there to supply pressure to the secondary diaphram rather than flowing a large amount of air with a large diameter hose.

i understand its purpose, but getting the scoop correct can be a make or brake matter for some setups.

it really depends on the setup. the pickup size and angle and location determine how it functions under boost, I haven't found a one size fits all outcome. Generally a -6 line, with a piece of 45* end cut 1/2 pipe just after the turbo discharge works well.

Can't u just run the balance line from the plenum to the converters, with mine I've just run 2x 8mm hose 1 to each converter with a y peice and 12mm hose to the plenum

Quote: Originally Posted by boosted_wagon [View Post] Can't u just run the balance line from the plenum to the converters, with mine I've just run 2x 8mm hose 1 to each converter with a y peice and 12mm hose to the plenum you can, but remember the whole point of feeding boost to the converter is to allow the flow of gas to raise appropriately under boost conditions. If you are taking your feed from the plenum you are subject to any pressure loss through the cooler and piping. You may get away with it, just means that if you did need that extra 'headroom' of boost going into the converter, you likely can't get it by taking the ref from the plenum. From just near the cooler outlet is considered the best starting point as you get all the boost available (ie none is lost through the cooler etc). This is where I have mine - an dash 8 hose to near the converters then split into 2 dash 8 hoses, one for each