BigBully

The Fummins is one fun truck but I need More Power. Do I need to Upgrade to a Bigger Turbo housing first? The one there is What, a 3 inch? and I need a 4 inch? Correct? I havent Ground the Foot yet or done the fuel pin but I have been running 50/50 Meth/water and its a Kick in the butt. In That video I was just running Windshield wiper Fluid and its not much of a kick.

wannadiesel

You can replace the hybrid turbo with an HX-40 or an HTB2, that will get you a 4" outlet. If you can't control the EGT with the hybrid, you need a bigger turbo before you add more fuel.

BigBully

Its not too bad with the Water but still hits 1400 fairly easy

wannadiesel

Oh, is that all?

You could grind the AFC lever, but doesn't Colorado make you do a smog test? A truck with a ground lever doesn't have a prayer of passing. Go over to the Diesel Central board and get in touch with KTACummins. He has had a few 14mm pump heads made up, he may still have some left. He's well over 500 HP on straight #2.

BigBully

Some of Colorado But not where I live. Shoot 1400 is great considering it used to Peg the pyro

BigBully

can someone give me details on Grinding the Pin? I was gonna buy the BullyDog pin but if I can do it myself (safely) I would rather save the cash.

wannadiesel

As long as you don't grind the stock pin so much that it breaks, you can't hurt anything. Just make the deep part as deep as you think you can without weakening the pin too much. Leave the big end alone. A ground stock pin will not cause a leak.

BigBully

ok I think I under stand but is it just like the last 1/8 inch of travel that I am after? Does it need to be Polished so it wont wear?

wannadiesel

Yeah, you just want to make the deepest part as deep as you can, but keep a smooth curve going down into it. You want a nice finish like what's there now when you are done.

BigBully

So how do i make the Finnish Smooth like that. If I get my Grinder out that thing will look like a dog chewed on it

kcprecision

A dremual tool and some emery cloth and start polishing. Maybe use a 120 grit to start and move to 300 grit. As I have never done what you are wanting to do what I am suggesting may not work in your case.

wannadiesel

Yup. Gonna have to polish it.

Bushy

I actually had really good luck using my dremel tool as well...when the "grind" was done, I used one of the included "felt" polishing wheels and some polishing compound....darn thing came out looking like buffed chrome....worked real good...go for it...

bob...