Originally Posted by
tabetha
The std DHLA dellorto is not suitable, for blow through turbo.
You can get specific DHLA's that are though, the main difference is not so much the seal it is the float, this being made of brass rather than plastic which could crush under pressure, though the seal is a different sort too.
Most carbs can be used easy enough with suck through though, depending on what you want to do, and this has several advantages over blow through, the fuel helps to cool the charge air temp, and the impeller breaks up the fuel droplets so it mixes better.
tabetha
i read into the suck through method too, david vizards power tuning the ford SOHC engine is a great book, i spoke to a bloke who worked as a tester at garrets for years and for a suck through system you need a spring loaded ceramic seal on the turbo shaft to stop fuel going through, what would be the issues with using a normal turbo with suck through carb turbo?