Converting a updraft manifold to downdraft (Page 2 of 2)
| Interesting thing about repairing old cars it's better to leave a little bit of rough finish so the fix disappears, if it looks to nice it stands out as an obvious repair and on classic cars a lot of the castings are pretty rough as you can see on this example, when I've gone to pebble beach I can't stand engines that have been ground down to get rid of all casting marks and then a ton of filler and epoxy paint put on to get that smooth as glass look, it looks nice but you want it to look like it came out of the factory, and when they line up all the Hexs and screws it looks kinda retarded they don't do that at the factory |
Here's the elbows welded in to the top   as you can see the join deep inside is left slightly open so when I'm done I'll wipe a small amount of jb weld acros the joint to fill, properly applied jb weld stands up very well inside the manifold, I've seen it on many manifolds inside them on race manifolds
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For those interested, this is how you reach in real deep to weld in small spaces, also I'm using a preheat on manifold to about 200 degree then weld, then air cool to keep cracking down, ac, high freq. about 200 amp with argon and 4043 with a variable foot pedal,
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Also the 4043 seems to work better on the older aluminum than 5356, I think it's the silicon and magnesium help it to join the older cast aluminum
Now I'll drop the top on and weld the inside if the throats first and then finish with the outside bead and the blend, some of the casting is only .040 thick inside from the rot on orig. manifold 
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Originally Posted By Stutzmech:
Interesting thing about repairing old cars it's better to leave a little bit of rough finish so the fix disappears, if it looks to nice it stands out as an obvious repair and on classic cars a lot of the castings are pretty rough as you can see on this example, when I've gone to pebble beach I can't stand engines that have been ground down to get rid of all casting marks and then a ton of filler and epoxy paint put on to get that smooth as glass look, it looks nice but you want it to look like it came out of the factory, and when they line up all the Hexs and screws it looks kinda retarded they don't do that at the factory Folks were in awe at someone actually doing work on their own car at PB..... Yes - we were the poor cousins at the show that year 
Thanks for sharing your work! |
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Originally Posted By glocknick:
I think it's neat but you need more turbos.  @glocknick
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Originally Posted By Stutzmech:
Here's a interesting stutz dv-32 engine that bill ruger had Calloway engineering build for him, it's in a 28 stutz Blackhawk turbocharged, fuel injection, bill was into stutzs big time , we used some of the titanium rods that he had made at his plant in a couple of race motors we didhttps://www.AR15.Com/media/mediaFiles/498772/image-1205374.jpg@glocknick |
Welding the top on  
A lot of the cast in bubbles are coming out going to fill those in in a bit, the inside of the elbows are welded to the inside of the old top , I'll fill in some of the inside of top with a pot of liquid aluminum when I am done with the outside |
Melt about a 1 lb. of aluminum, and then dump it inside to give some strength to the elbows and back up the thin spots in the casting 
There is a bunch of rot inside the box and its paper thin in a lot of spots so the filler gives it solid structure so I can weld the pits out side without blowing out the thin spots |
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Originally Posted By TheSurvivalist:
Very cool. Awesome work and great pics. Here's a 23 dusy mod a custom duel  manifold I did years ago
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Originally Posted By Striker:
you must be on a first name basis with Wayne Carini by now.  about that, he came by with his camera man to "help" install a type 57 Bugatti engine last year
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Originally Posted By Stutzmech:
Yes I've worked on some of his stuff, lots of story's about that, he came by with his camera man to "help" install a type 57 Bugatti engine last year |
For fuck's sake. It is possessive. For the sake of fuck.
