97' fc350

Some pics

More pics

Pics of the piping

Couple more, I haven't worked on it for a couple months. All these photos are the latest, hoping to get back on it this next week. I have all the parts to finish just no time.

Very nice work on the piping/manifold. Looks really good. Nice work around the oil filter and A/C. I feel your pain.

Thanks! I'm getting excited to see how it all comes together.

Couple pics of how I mounted my the big charger. Still need to trim things up and add a brace from the flywheel housing to the engine mount so I can bolt the upright to.

Bottom turbo mount finished.

I'm getting ready to finish welding the exhaust manifold and hoping to get some input on how far I should shim the manifold away from the head flanges to anticipate the warp induced by welding, if that makes sense? I will have it decked flat on a mill but I'd like to get some good hot heat cycles through it first. I was thinking of putting two manifold gaskets in the 3 and 4 flanges and doing one in the 2 and 5 flanges and none in 1 and 6, bolting it down tight and then welding. I know the stainless ones I've seen warp about an 1/8". Thoughts?

Just about finished with the manifold. For those who may build their own one day, I used two exhaust manifold gaskets in the middle two flanges, then one in the next two out and none in the two ends. Then torqued all the bolts to 35ftlbs and welded. It looks like about .010" of gap in the two outside flanges.

Couple pics to keep the thread from closing.
I've got a video if I can get it to load.

I'll have to figure out You tube to post the video.

Video

https://www.youtube.com/watch?v=q3jeIaRsD-M&t=1s

awesome job

Just want to send a big shout out to Steed Dolan for the Banshee Controller, it's been interesting getting everything dialed in but it rips!! I forgot to hook up my boost reference to the AFC housing after sliding the plate forward and was a little bit disappointed in the performance. Had a couple daughters with me on the test drive and thought I'd get out to check it over and remembered I may have left the boost reference disconnected. Sure enough, hooked it back up and POW!! Scared the **** out of the girls when the boost came on and then POP!! I figured I'd blown something up but got lucky. Put a nice shiner in the charge pipe but it'll add a little character. Overall I think I have it dialed in pretty good for these injectors, It cleans right up with no haze. Drive to boost pressure is running 1:1 or less which is strange but I guess with the way I have turbo programed it could be expected. Little more tuning and I'll be able to get the drive pressure to match the boost to keep the pressure ratios so they are working the chargers right. Max boost I've seen was 54psi and about 1250 egt's . Should be able to push things a bit harder. Torque is amazing when the 480 kicks in, and the bottom end response is great with the VGT. I've got some DDP 4's I'll put install in the spring when I don't need the truck for winter. I don't know how long the factory head gasket will last with just a re-torque on the stock head bolts but it's held up to some good long pulls with 13k in tow over the Sisters.
I still need to hook a gauge to the pressure side of the modified DCEC Cummins lift pump so I can adjust the fuel pressure regulator, but I think it's doing great. Also need to put a accumulator in that side to help with the fuel lines hammering. I Might have to go with a 1/2" stainless hard return line to stop the wear on the rubber hose.

Head gasket finally started leaking, not bad for 240k.
Anybody seen the swirl like burn profile in the piston bowl? All the pistons had the same look and out of about 20 head gaskets that I've replaced on other trucks I haven't ever noticed it before.

Got it all back together and the refurbished head has a crack, was supposed to be magna fluxed but I guess it could have happened when I torqued the head so who knows. I don’t know the history of the head other than I got it from an engine that was in a truck fire.


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OBS Cummins

Looks like the truck turned out great.

Going through your pics, it looked like the single turbo cleared the heater box just fine. I'm getting ready to do an OBS Cummins myself.

Yes, the single cleared just fine. If you run into any questions hit me up, I got a lot of the info for the wiring and other stuff that I may not have post on here. Your 71' gets me excited to start the other one I have laying all over the yard and shop, 89' 1 ton chassis with a 79' cab and front clip.