SO I found that I have a wh1c easy to do a HTT stage III cuompressor but I'll need a 14cm hsg. So I'm on HTT's site they got the 14cm gated hsg for $385 then they got the 14cm non gated hsg for $155. Well you know which one I'm lookin at the $155 non gated, but how do I keep boost #'s in check? If you say an external gate then I might as well get the gated hsg. What gives????? I usually drive the truck empty but do load it and when I do it's heavy, which one to get

 

The wastegated one i would think will cost less than trying to put a external wastegate on. I talked to shane at industrial injection in slc , he said the 14cm wastegated housing was on backorder. Maybe one of the sponsers have a deal on one.

Steve

 

I think that's probably the way to go with a gated hsg that is. Otherwise I see no other way to control the boost. Of course I'm in the 12cm frame of mind and have no 1st hand experience with a 14cm so maybe boosting out of control might not be a problem as I've experienced with a 12cm, until I gated all 6 cyls with a hsg mod.

 

With your HP I think you will want the WG version. Can always add a MBC to up it if you want but I don't think there will be a need.
Don't want to spend money and still have over 35 psi!
In my expirience, going from 12 to 14 cm2 is not a hugh difference.

RJ

 

With the wastegate disabled on my 14cm I was able to peg a 60psi boost gauge.
Hooked the wastegate back up and adjusted it to 35psi.
You can get away with no wastegate on a 16cm but not a 14.

 

The housing size on these things isn't that crucial once you get into the bigger units, because the turbine is so restrictive that a 40cm nongated housing wouldn't be much laggier than a 21cm one, I'd imagine. But a 12 is small, and a 14 isn't that big, either.

16cm is probably about the point where the housing and the turbine wheel pose similar restrictions. Bigger than that, and the housing flows more than the wheel. Smaller than that, and the housing is more restrictive (and thus you need a WG even more so).

That said, having a wg IS crucial-- for optimum efficiency, and for the safety of your turbo.

Just my opinion as an amateur 24V guy

 

I myself wish i had a gated housing. I have a H1C turbo with 18 housing evenwith the housing i used to be able to build 55 lbs of boost with the stage III kit form HTT. THat is way to much so i advanced the timing a lot and got 40lbs thats as low as i can get. I was going to get the 14 gated housing but i am just getting a nother turbo now. Its a lot of money i but i think that it is worth it.

 

Is 14cm gated divided scrolls or open? If it's divided I might possibly run into the same problem as I did with the 12cm, without gating all 6 cyls it was easy to overboost plus I had no wastegate control. So I had to do this which worked great:
but I wouldn't be so inclined to do this to a $385 14cm gated hsg

 

The 14 is divided. I drilled mine before I even put it on.

 

The wastegated housing is my favorite for moderate HP trucks. You still get fast spooling and reduce the backpressure to control EGT's and reduce max pressure. This is a costly housing but well worth it, it is about the only thing that Banks and I agree on.
Bruce

 

I picked up a used Banks 14w housing on my truck right now. On the banks actuator it says 43psi max. We have similar mods and WFO through the gears I never see more than 40-42psi on my boost gauge. Which is still probably a bit much for HX35 but its much better than the 50psi I was seeing under the same conditions using a 12w with the divider drilled out. Havent drilled out the 14w yet.

 

with a bleed orifice (needle valve) and a reducer in the orifice I got the valve open one turn and seein 34 psi. If opened 1/2 turn further I get 37 psi (it can be opened 5 or so turns) have no need for the old big head now its sittng at my desk collecting dust anyone want to trade a bare 14cm w/gated hsg for a Banks big head, straight across don't even need the turbine outlet just the hsg and a free working waste gate

 

I thought the Banks 14cm housings came with the divider drilled out.

 

I thought so to so the only way I can explain it is that its only a 14 housing with the banks "big head" actuator on it or since its a few years old the drilled divider is a newer thing banks does. Dunno.