i have a sc-14 suck thru carbie setup on my torana. ive noticed the inside of the pipe off the charger has a thin black film of oil over it. i did a search and its got somthing do do with the "breather" hoses on the blower ventilating it. thats my next question, the blower has i think 4 of these hose fittings. what are they for? at the moment i have them pluged up as they were leaning out the fuel mixture. is this ok to block up?
i checked the oil, it was abit low, about 120mls came out. what non-genuine oil can i use to replace it? i have some castrol 10w40 gear oil that is quite thin. ive heard the mobile 1 5w/40 is the go. will this castrol 10w/40 be ok?
thanks
btw, its been overdriven to about 78%, approx 10psi
Location: Toronto, Downtown
Registered: September 2004
Re: SC14 - what oil? and other questions
Mon, 19 September 2005 06:17
any reasonably thin synthetic oil will do really i use fuchs 0w-20 but alot of people use mobil one which is no problem at all as for the rest of it i have nfi
From the factory, the breather tubes are set up in some way through VSVs to minimise the pressure across the SC end seals. This means that less oil is sucked through while the manifold is at vacuum. I'm not sure exactly how they control it or where the VSV is connected, though a good Google may shed some light (I remember reading up on it once).
However you can just bridge all the breathers together. I've run an SC12 like that for about 2 years without problem.