Compatible Turbo Components

djmtsu · 07-08-2008, 07:13 PM

Get an S5 hotside and exducer wheel. Should work out well for you. Or, since you have the hybrid parts, but a blown T4 and rebuild it using some of the parts from the hybrod turbo and go full T04 (since you are making a custom manifold anyway).

RETed · 07-08-2008, 09:14 PM

Mating the turbine wheel to the turbine housing is crucial...
Too much space, and the exhaust gases just bypass the wheel.
Too little space, and you get contact.
The Hitachi HT-18 turbine wheel is not a standard Garrett wheel trim.
Basically, it's not going to work if you're trying to stuff a Garrett turbine housing onto the stock Hitachi CHRA.

Dude, I dunno why you're so stubborn on doing it this way...
Good, used S4 turbos (i.e.turbine housings) are almost a dime a dozen.
Getting a better replacement turbine housing is easy and cheap.

If you insist on a T4 turbine flange, why not just upgrade to a full T4 turbo?
Deals can be found on good, used T4 turbos all over the place.

I agree...I don't get it either.

-Ted

07-08-2008, 07:13 PM	#1
djmtsu My minds tellin' me no... Join Date: Feb 2008 Location: Murfreesboro, TN Posts: 4,043 Rep Power: 22	Get an S5 hotside and exducer wheel. Should work out well for you. Or, since you have the hybrid parts, but a blown T4 and rebuild it using some of the parts from the hybrod turbo and go full T04 (since you are making a custom manifold anyway). __________________ 1976 Mazda Cosmo RX-5 1976 Mazda Cosmo RX-5 2003 Toyota Tundra TRD 2015 Toyota 4Runner SR5