Turbo exhaust housing size.

[jeff77indy]

This has been gone over a time or two I am sure but I can't find it.

Does the number cast into the housing correspond to the size? Is a housing with 14 cast into it a 14cm?



I have a complete turbo which by looking up the label plate data is from a 92 or 93 Dodge CTD but was supposed to have a 16cm housing put on it, it does have 14 cast into it.



If this is a 14 cm how would it work on my pretty much stock 1992 W350?



The housing is not waste gated.



Jeff

 

[NIsaacs]

There are others on this 1st gen. forum that know turbos better then I, maybe they will see this thread and give better input.



What I do know is the 89-91 used an 18, 91. 5-92 used a 21 and then the 92. 5-93 went back to the 18. I changed out the 21 on my 91. 5 to a 16 and like it very well. With my fueling I think I would like a 14 even better.



I think you will like the 14 on your truck with your mild mods. With the mods on my 91. 5 the 21 at WOT in neutral showed zero boost. With the 16 I get 5lbs. Under full power it runs 28 lbs. On a local dyno a few weeks ago it ran 263 hp and 708 tq. Considered mild but compared to factory it is fun.



Nick

 

[Midnite]

Jeff, that 14 should work great on your relatively stock truck. On my '92 I had mild injectors, some pump mods, and even with a load I had a hard time hitting 1300 degrees EGT.

Is that housing wastegated? Not that that would make much difference in your case--I doubt you'd have any EGT issues even if it didn't have a wastegate.

I bet you'll be very happy with it.

Mike

 

[jeff77indy]

Thanks for the input fellas.

It is not waste gated. I guess I will install it when I get to the engine. I am getting parts together to do the front end, king pins, steering knuckles ect.

Then gauges and onto the turbo and either a 24V air horn or coolertubz.



The IP was turned up slightly (10*????) by the previous owner ahich also installed slightly larger injectors. Not sure of the size (30hp???).



I have opened the stock air cleaner housing up and it has a 3" or 3 1/2" exhaust which I plan on going to a 4" when I start on the engine.



Thanks again.

Jeff