Word to the wise: There are two different types of seals in turbochargers: dynamic (aka piston) and carbon (aka positive). The carbon seal is suitable for either blow-through or draw-through applications. Dynamic seals are suitable for blow-through only! I repeat, you cannot use a dynamic seal on a draw-through turbo system. This is important. Ideally, you would select a turbocharger that came with a carbon seal already in it, and save youself a lot of headaches later. Unfortunately, carbon seal turbos are a rarity, because the newer dynamic seal is more efficient, and well suitable to the fuel injected engines that are used these days. So, the moral of the story is if you want a draw-through setup, either a) find a turbo with a carbon seal, or b) rebuild your turbo and convert it to carbon seal.
im sure my chinese 150$ turbo is a dynamic seal unit but i was thinking about getting it rebuilt with good bearings and carbon seal to make it more reliable, but the turbo is working fine for now and the seals arent leaking and its not like the car gets a lot of miles put on it. it idles for 5 minutes then gets ran for about a minute, i would like to buy a garret t3 t4 hybrid with the carbon seal already installed but i dont have the 700 for one so ill probably just dump 250 into my cheap one and never worry about it again.
Nice!
