Well I got a buddy with the 66. Spool is a little slow. But he is only running 100 HP sticks.

You will have almost no acceleration low down. I would advice against it, or get some 200hp + sticks.

Advice taken, once i get it all hooked up and see how it runs. what do yall suggest on injector size???

Ok 150 HP injectors installed... Talk About A Wake Up!!! And A BIG Jump In MPG!!! So the More I think about it the More I want A smaller Turbo.

I have a Free Mind and its Open for suggestions....:humm: Just to sale or Trade This 66/74/14 non-gated turbo:c:

Maybe it needs a s475 feeding air into it, Compound it! I'll never run a single again after having my compounds.

So Now you Got My Mind going!!! could I use my HY35 For Feeding the 66???

Negative, you always want a bigger turbo feeding a smaller one. Maybe your 66 feeding an HY, could be similar to BD's Tow "Twins". I wouldn't use an HY though, especially for how cheap a HX can be picked up.

well i was just looking at what i've got.

Understandable by all means. It might work with the 66 feeding the HY.

What year is your buddies truck? That turbo will spool uber slow, be hot and smokey, with not alot of boost. And dont plan on trying to tow with it as a single. If you did a 35 over the 66 like Ryan said it should act similar to the bd diesel super b compounds. It wouldnt be a powerhouse but it should spool quickly