I am very happy with my PT76 on my 408. I think anything bigger would be too big for a street driven truck.

 

I think the Garrett GTS-76 or Turbonetics TC-76 is what I will be going with since the truck will be run 80% street 20% track.

As for the cam I have no idea what the numbers mean but they are in the first post. It is supposed to be a turbo cam.

Now I need to start a post for some fuel system help.



Edit: What A/R should I go with if using the 76 in rear mount form?

 

I love how my truck drives on the street. It is mild as can be when crusing, but once I step on it its lights out and the tires are up in smoke. I guess it is all in what you are looking for.

 

That's exactly how I would describe mine. I guess I'd have to go for a ride in yours before I could judge.

 

A 76 should spool up real quick on a 408, but with anything other than low boost you'll work out of the turbo's efficiency range pretty quick.

 

A TC76 would be the quickest spooling of the bunch and still support pretty big power. Above that then you might want to think about the ST series units instead of making a jump to the full on S-series unit.

 

I think the S85 would be great if it were a front mount but a 76 would work better being that it will be a remote/rear mount.

 

What about an S78?

 

You could always do an ST78 or ST80. They are T4 flange units and will spool quicker then the larger turbined S-series and SX-series.

 

Yeah, but would an S78 have much spool time issue on a 6.7L? Just asking, not knocking what you're saying. You're Jose' correct?