72 k20 project

[mosesburb]

Originally Posted by 6lcummins

We will see, think Lil Brother may learn on yours...

Did he make it home ok??

[6lcummins]

Originally Posted by mosesburb

Did he make it home ok??

Yes sir, few snow storms, a blizzard, and a stop in the middle of BFE, but he made it home a couple minutes before I did last night. Was nice to see the Ford sitting in the driveway.

[ryanroo]

so, barring any unforseens or a blast of pure genius, this is roughly where the turbos will live. it looks like the secondary will hit the hood in the current position. to cure this, i think i will do what i do best. mercilessly cut stuff apart. if the flange on the industrial manifold(thanks Ryan) were to exit in 45 it would lower the turbo and make it so i could clear the hood with no issue. i do think i may end up running an external gate, since it looks like the actuator has no place to go. more contemplating is certainly in order but at least i can get the primary in there. it does clear the evap housing, and the mount bracket for the big boy looks like it should be relatively simple to make.

[1985-GMC]

Awesome!
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[ryanroo]

BFE? it wasnt that bad! i offered beer and let him wash his hands!

[ryanroo]

made a few extra.

[6lcummins]

I was going off his words, but he did get a great view of the backroads over the mountains in the snow lol

That's probably the first time I have ever heard of him rejecting free beer btw.

Originally Posted by ryanroo

made a few extra.

T3 for the hx35? or that butterfly for the HX55? BTW if u need a gasket let me know, I know where there are a few...

[ryanroo]

Originally Posted by 6lcummins

I was going off his words, but he did get a great view of the backroads over the mountains in the snow lol

That's probably the first time I have ever heard of him rejecting free beer btw.



T3 for the hx35? or that butterfly for the HX55? BTW if u need a gasket let me know, I know where there are a few...

Oh we are in almost BFE, but real BFE is the rez that he drove through for 6 hours before he got here. skinwalkers everywhere....

those are all T3. i have a plan for the Hx55. hopefully i can make it work. and ill need a gasket or two eventually.

[6lcummins]

He did say the res was definitely BFE. I'll have to grab you a couple gaskets then.

[ryanroo]

'preciate it

[Dieselwrencher]

Nice work Ryan. Sorry bout that rusty manifold. I know you hate that color.

[jbclassix]

Originally Posted by Dieselwrencher

Nice work Ryan. Sorry bout that rusty manifold. I know you hate that color.

Isn't that known as Iowa Varnish?

[ryanroo]

Originally Posted by Dieselwrencher

Nice work Ryan. Sorry bout that rusty manifold. I know you hate that color.

yeah, it is a little depressing, but hey, i got to cut it into pieces and that always makes me happy!

[ryanroo]

had to give the new/old manifold i got from Ryan the ol' ryanroo special. seems i have an issue with stock items and need deep in my being to mutilate them. so i hacked the stock outlet off and welded on my own.



for those interested, i used Lincold electric 55Ni rod. preheat to probably 200-250 degrees (the entire manifold and the flange- pretack) tacked it on and welded. pause for a short peening session after each weld. then i wrapped the whole thing in a blanket and left it be over night. i have faith it will work fine, but the first true test will be the initial heat cycle on the engine with the weight of the turbo(s) on it. the fact that my test and the manifold did not crack right away are good. and ive always had luck with the 55ni rod.

yes, i know its ugly. cast makes the puddle a little squirmy, and its not something i do every day

on the head



turbo position



the primary will be up little from here. it is just sitting on the frame right now.

[jbclassix]

Couple things, don't you need force and rapid temp change to crack cast? I think your welds will be fine. You went all the way around, it's not like you were repairing a crack that could branch off. Did you just do a single pass?

[ryanroo]

single pass mostly. I did a few on the sides where it was a pain to reach. mostly just to make sure I sealed it. cast by itself generally needs a temperature shock or impact to crack. when you weld mild to cast you have two dissimilar metals with different expansion/contraction rates. the mild likes to expand and contract more than the cast and at different rates. that is where the issue with cracking out occurs. that is also why I am not to worried after the initial cool off, but I will be totally convinced after the engine heat cycles a few times
it also is an issue with repairing cracks in cast because the filler has different characteristics than the parent.
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[Dieselwrencher]

It'll be fine. I've made several pieces in the last 5 years that are a mixture of cast and mild welded together with a mig welder. I pre heat the cast red hot, and then burn it in. I haven't had one of the parts crack or break yet. The exhaust manifold I did has been over 2000* several times with no issues.

[6lcummins]

The manifold on my 96 has atleast 8-10 hooks of a constant 1750* for over 300 feet with a real sled behind it. No leaks yet....

[Mattman2010]

Looking good Ryan! That will be a sweet setup.
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[ryanroo]

Ive done a bunch of stuff with a mig, and er70s2 is pretty decent filler for mild to cast too. i am always skeptical until i prove myself. still never had any parts come back cracked. i still prefer to use the heliarc if i dont use the nickel rod for a little better heat input and control. but i think these manifolds are pretty good castings, and that also helps.

[ryanroo]

Nothing real exciting lately.

i decided to pull the backing plates off the dana 70 and put them on the 80. the 80 only had backing plates, nothing else when i bought it.

yanked the whole set up off, hauled it to the carwash and gave it a good washing. then painted the outsides black



new seals!



got to the other side and found that the bearings felt a little icky. decided to run a different hub i had laying around because this one was ugly. not real sure it would have mattered but hey, whats the use of spare parts anyhow.



back together. ill have to pull the wheel cylinders but i havent ordered them yet. hopefully i can do it without totally disassembling everything. i also need to order some new drums



today i crossed over.

[jbclassix]

Oh man! Now you're ready for colored transparent speaker wires, wire nuts, and a twisted ground wire under a sheet metal screw!!
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[woodwright]

I just caught up on your thread, looks awesome. I have a question about cast welding though. On my 6.5TD, the turbo manifold has a straight section about 4" long near the inlet.

If I can cut that section out, then my turbo downpipe will fit past it. My plan is to put a good bevel on the cut, preheat the manifold in the barbeque, and tig weld it with nickle rod. Hows that sound? What about using the cut out cast metal as filler?

[ryanroo]

Originally Posted by woodwright

If I can cut that section out, then my turbo downpipe will fit past it. My plan is to put a good bevel on the cut, preheat the manifold in the barbeque, and tig weld it with nickle rod. Hows that sound? What about using the cut out cast metal as filler?

that will work well. let it all come up to temp. only needs to be 200 or so. weld it and put it back in the barbeque. cool it slowly. do not attempt to use the cast material as filler. it wont work worth a ****.

[jbclassix]

Ryan, Did you make that dash bling? If so, how about some pictures.