HOHN

OK, just a disclaimer here: I'm broke and won't have any way to twins for a couple months at the earliest-- maybe next summer if I'm lucky. So for now I have to settle for being "all hat and no cattle."

Anyway, looking at the Garret catalog, the GT4202 is a turbo that's perfect as a primary for my fuel-limited HO. It will spool very quickly for a bigger charger (some guys use them as singles!). It will support 650hp with only 3:1 PR, but it also can handle as little as 45lb/min (about 360hp) at 3:1 PR without surging.

So now we get to the actual install, choosing turbine housings, etc. Because I'm trying maximize early spoolup and have this turbo making 3:1 PR no later than 2000rpm, I need a smallish turbine housing. Garrett has a 1.01 and 1.15, either if which would work well.

But check out this 1.0 A/R Tial cast Stainless housing:




The V-band inlet makes adapting this thing to a hotpipe a lot easier. The Stainless holds more heat and this thing should spool like nuts!

Not to mention the Stainless housing is much lighter than the cast iron, and smaller and stronger. This thing can drop 20# off the weight of your twins.

Unfortunately, I think you'd have to have your lower turbo braced pretty well to use this housing, but maybe not. Can you hang the weight of a turbo from a V-band?? I've been told the V-bands are actually quite strong and they shouldn't be underestimated-- but that if you tighten it enough to support all the weight if the turbo without leaking, then you might crack or bend the turbine inlet.

Anyway, I thought this Tial housing was really cool. Those pics are of a GT4202, so that's the EXACT turbo I'd want to run as a primary.


Justin

GFB

That's the first turbine housing I've seen like that. Looks tasty.

2500superram

first time i've seen that exhaust housing too.that turbo support's some good number's on a gasser

95ram

Looks pretty and $$$$$$$$$$$$$$$$4