D21 HX-50 turbo
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Forum Name: Pulling Forum
Forum Description: Forum dedicated to Tractor and Garden Pulling
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=101325
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Topic: D21 HX-50 turbo
Posted By: AC D21
Subject: D21 HX-50 turbo
Date Posted: 01 Feb 2015 at 5:24pm
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HX-50 turbo on a D21 turning around 3,000 rpm. What would need to be done to the fuel system and clutch? Is this possible without going inside the engine. It is a military genset engine.
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Replies:
Posted By: DrAllis
Date Posted: 01 Feb 2015 at 6:32pm
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The Cummins/Holset HX-50 needs to have the smallest exhaust housing, which I think is a #19. Your fuel system needs to be at 300 cc's or MORE. 3000 RPM is better than 2,900 RPM. Intercooler with cool or ice water flowing thru it would also be a benefit. Eventually you'll probably need to do something with the head gasket/fire rings. Mine used to run 45 lbs of boost with a DB450 pump @325 cc's fuel with 4 hole .020" injectors set at 2500-2800 psi. The basic engine was bone stock. Stock 4-pad clutch disc with six extra springs inside of six existing springs in the stock pressure plate.
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Posted By: AC D21
Date Posted: 03 Feb 2015 at 6:36am
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Thanks DrAllis I was also wondering about a better exhaust manifold. I heard about making spacers and using a dt414 manifold. But it's not a center exit for the turbo. Could spacers be made to use a Case 1170 manifold?
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Posted By: DrAllis
Date Posted: 03 Feb 2015 at 7:06am
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Don't have any idea about the J.I.Case manifold. I used the D-21 manifold with a 1 inch spacer plate and a welded in divider wall to keep the flows split....1-2-3 and 4-5-6.
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Posted By: injpumpEd
Date Posted: 03 Feb 2015 at 12:54pm
I have set up many fuel systems just like what you would need. At the point you're at, the stock center dump exhaust will be just fine.
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210 "too hot to farm" puller, part of the "insane pumpkin posse". Owner of Guenther Heritage Diesel, specializing in fuel injection systems on heritage era tractors. stock rebuilds to all out pullers!
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Posted By: Slade (TN)
Date Posted: 03 Feb 2015 at 7:21pm
I have a 426 intercooler if you're interested in adding one
Slade
615-542-6999
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Posted By: AC D21
Date Posted: 03 Feb 2015 at 8:41pm
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Injpumped I would like to talk to you about the fuel system. So I can find out how far I can go and what it will cost.
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Posted By: AC D21
Date Posted: 03 Feb 2015 at 8:42pm
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Can't run an intercooler with my rules.
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