Awesome thread!

 

Great write up

Hows it feel after the cam/I/C?

 

I'm hoping this will find it's way into the sticky?

 

it did.

hahahahh

 

absolutely a great read. one suggestion from 40 years of this kind of work. i would never install new camshaft without new lifters. only in an extreme emergency.

 

Thanks for the kind words folks. I'm hoping many will find it useful.

Understand that when I removed the front of the truck and all getting to the cam, I kept eyeballing the early Banks IC knowing that I'd planned on going bigger there. Further, when I installed that Banks IC, I hacked the radiator support and that surrounding to make the IC fit like I wanted.
While cypher'in cutting the center brace to pass the cam, I got frustrated knowing I was gonna be in there again later, . . . . . AH!! DAGGUMIT!!

I went ahead and did it all. Rebuilt the radiator support, installed the custom BHIC, Up-sized all the IC plumbing to 3", replaced the cam, upgraded the lifters and snuck in some chromoly push rods.

And changed the oil.

-> My primary goal in all this particular mess was to clean up the heavy smoke once the conservative twins were spooled with my now running the 6x.016" EDMs [knowing the power would go up with now burning more of that smoke (wasted fuel)].

At this point,
- WOT, full boost RPMs up to defueling smoke is greatly reduced to a heavy black haze.
- EGT's are a maximum 1500*F (at the top of a WOT 1/4 mile run).
- Boost is down from <65psig to 55psig (as measured at the engine's intake log).
- The primary turbo now starts singing good at about 1300rpms with a part throttle and a mild load.
- A 1/4 mile ET is down a solid <.2 second.

I've still got to bomb the 12mm VE. With it maxed and starting to defuel at 3400rpms, the regulated fuel supply from the Walbro 392 drops from 18psig to 16psig (measured at the regulator's outlet, going to the IP / with 6x0.016" Shied EDMs). I think I could find some more in there.


I agree completely. I've always thought: If you're gonna replace a chain (bicycle, motorcycle, camshaft drive, etc), replace the sprockets.

But, in this case, with my having seen 1st hand the wear of my mess's lifters, I could easily see that with very minor grinding, the faces could be renewed and the results would not mean weird valve-train angles and such.

 

sticky this


by the way were did you get the dual intake?????????

 

EXCELLENT write up, thanks for the INFO...