Oil-cooled only turbos?

djmtsu · 06-30-2011, 12:45 PM

Funny you are posting this now, as I had the same question.

Since I am boosting the 12a, and I have to find a source/return for coolant I did some research on it.

The JDM 12aT had a very similar turbo as the S4/S5 FC's, a Hitcachi HT-18. They did not have coolant provisions, oil only.

So, after asking around to a few guys with 12a turbo set-ups, most do not run coolant on theirs.

I am taking a gamble, and am going to rum it oil only.

PS- Nate, I need that S4 manifold!!

06-30-2011, 12:45 PM	#2
djmtsu My minds tellin' me no... Join Date: Feb 2008 Location: Murfreesboro, TN Posts: 4,043 Rep Power: 22	Funny you are posting this now, as I had the same question. Since I am boosting the 12a, and I have to find a source/return for coolant I did some research on it. The JDM 12aT had a very similar turbo as the S4/S5 FC's, a Hitcachi HT-18. They did not have coolant provisions, oil only. So, after asking around to a few guys with 12a turbo set-ups, most do not run coolant on theirs. I am taking a gamble, and am going to rum it oil only. PS- Nate, I need that S4 manifold!! __________________ 1976 Mazda Cosmo RX-5 1976 Mazda Cosmo RX-5 2003 Toyota Tundra TRD 2015 Toyota 4Runner SR5