goronimal

I have a 16cm and the 12cm housing for a hx-35 turbo.I was wondering if anyone had any input on witch one was better to use. I have a `93 ram 350 auto tranny,3.5 to 4in open exhaust,plannin on fuel pin and 3200 spring in the near future.Thanks for any input.

NoSparkplugs

With the auto tranny in your truck I'd stick with the 16cm housing. Not much of a difference with the 12cm and 16cm on an auto truck in terms of spool up. Although if the 12cm is wastegated, it is a nice feature to have IMO.

Before I forget, do you have gauges? I wouldn't recommend tinkering with the fueling and turbo setup until you do.

Lucas

MJDiesel

I am actually in the process of making the same decision as you are. From the information that I have obtained from this forum, as well as other knowledgable people, I decided to go with the 12 cm housing. The general consensus is that it is the best for an engine with stock injectors and mild pump mods. One small problem to take into consideration is that a wastegated housing requires that the downpipe be moved back about an inch.

TexasHardcore

Get some injectors, gov spring, and fuel pin, run the 16cm2 housing, and try to find a good HX-35 cold side to use as well and you'll be pushing about ~340/~840 at the wheels

Here's my old '92 with a similar setup...

flyingd

So where does one find a good used hx-35

NoSparkplugs

Check the 2nd gen classifieds on here. Its where I got mine, came off of a 98' 12v

Micaiahfied

unless it all in the injectors i don't see a truck with those mods making 340/840 especially not an auto truck it just wouldn't make it to the ground. i ran 370/840 with pods, gov spring, fuel pin, HTT stage 3 (slightly larger than 35 wheel), AND water meth... i was at 310/725ish without water meth.

goronimal

Thanks for the info,I`m gong to run the 16cm housing.Does anyone know how mutch up and down play a hx-35 is allowed to have.And what do I hook up the wastegate to.

G1625S

As long as the fan blades don't touch the housing, you're good to go. There is no wastegate on a 16cm housing.

okiesmartguy

Im running an 18.5 on mine and i just put an hx35 on my truck, it spools a bit slower but the new turbo cooled the blistering exhaust temps.

goronimal

So is it better to run the 12cm wg or the 18cm non wg.

dpuckett

It depends on your intended use and desires. If you tow a lot with enhanced fuelling, and can live with a little lag, go for the 18. If you run aroudn empty, and/ or tow ight (under 10K), the 12 will be just fine. Run one of each for a month and make note of temps, boosts, etc, and stick with the one you like.

Daniel