Roots Blower Sizing
10-24-2014 | 08:20 PM
#51
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Joined: Oct 2007
Posts: 8,439
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From: yorkville,il
sb,that is correct.a lot of people dont know but the 71 series used the blower to suck the exhaust out,not to force air in.
10-24-2014 | 09:57 PM
#54
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From: Vancouver BC
[ATTACH=CONFIG]531496[/ATTACH]
10-24-2014 | 10:36 PM
#55
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From: taxachusetts
this should help us get up to speed on the detriot diesels.
http://en.wikipedia.org/wiki/Detroit_Diesel_Series_71
http://www.dieselduck.info/historica.../#.VEsa3vnF98E
http://en.wikipedia.org/wiki/Detroit_Diesel_Series_71
http://www.dieselduck.info/historica.../#.VEsa3vnF98E
10-24-2014 | 11:17 PM
#56
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From: yorkville,il
I'm willing to learn something new every day, but I've been building and working on diesel engines, big and small, for longer then I've been into high performance stuff, and I've never seen a Detroit diesel run exhaust through the blower. They only have exhaust valves and need the blower to force air into the cylinders through slots in the side. It does help push the exhaust out, but never sucks it out. This might not work properly because it's from my phone, but this is the idea. This photo is actually a little GM EMD 2 stroke. 16 cylinders, 567ci each hole. 1800hp at 800 rpm
[ATTACH=CONFIG]531496[/ATTACH]
[ATTACH=CONFIG]531496[/ATTACH]
10-24-2014 | 11:21 PM
#57
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From: chicago
Maybe mount some 177s inline with each exhaust pipe to help those exhaust ports out a little
Last edited by MILD THUNDER; 10-24-2014 at 11:24 PM.
10-25-2014 | 04:16 AM
#58
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Joined: Aug 2011
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From: bel air, md
Hey take it easy on them iron heads. Compared to the other manufactures Chevy was King.
10-25-2014 | 04:22 AM
#59
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Joined: Aug 2011
Posts: 2,733
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From: bel air, md
I'm willing to learn something new every day, but I've been building and working on diesel engines, big and small, for longer then I've been into high performance stuff, and I've never seen a Detroit diesel run exhaust through the blower. They only have exhaust valves and need the blower to force air into the cylinders through slots in the side. It does help push the exhaust out, but never sucks it out. This might not work properly because it's from my phone, but this is the idea. This photo is actually a little GM EMD 2 stroke. 16 cylinders, 567ci each hole. 1800hp at 800 rpm
[ATTACH=CONFIG]531496[/ATTACH]
[ATTACH=CONFIG]531496[/ATTACH]
10-25-2014 | 08:53 AM
#60
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Joined: Mar 2008
Posts: 1,181
Likes: 2
From: Vancouver BC
Yes. A bit of a hijack, but kind of related because it's where our blowers came from. The 2 stroke detroit's are incredibly durable engines, and very well engineered. They were built to be universal, the front can be the back, anything from one side will fit on the other, you can join them together, throughout the same engine series almost every part is interchangeable. Compound supercharging was common practice (turbos feeding roots blowers). They were never intended to be a long term use engine, but were so well built they just wouldn't die, and gathered a very strong following, only phased out many years later by more efficient, environmentally friendly engines. Speaking of engineering, modern performance gas engines have nothing on 1950's diesel tech. Overhead cams, shaft mounted roller rockers, piston oilers, bushed solid roller lifters, turbos, etc. Sounds Familiar huh?
