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Napier Turbo

Just for you guys who think big turbos make BIG power - strap on this one. K27 sized wheel to right.

Old 10-12-2011, 10:39 AM
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Yowza! So which jet engine is this one off of...producing how many zillions of pounds of thrust?
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Old 10-12-2011, 01:27 PM
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I'm wagering it is off of a diesel freight train engine...
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Old 10-12-2011, 01:45 PM
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My guess is a gas turbine for a power plant?
Old 10-12-2011, 01:52 PM
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Nice wheel any more info on it?
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Lincoln Phillip
87 930 Motec EFI M600 G50/50 TurboKrafted Hell Hound.
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"the 930 is THE CAR that started my PORSCHE love affair..." Magnus Walker
Old 10-12-2011, 02:41 PM
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Napier makes me think it was from a WW1-WW2 aeroplane engine.

Napier Lion - Wikipedia, the free encyclopedia
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Old 10-12-2011, 03:39 PM
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Yes, this is a true turbocharger and they are used on very large diesel engines. Ours are painted yellow. Wheel is fully machined from forged AL blank.

The Napier name can be recognized for exotic engines (Napier Sabre) back in The War years (WWII).

The Napier Nomad is possibly the last of these extreme engineered masterpieces. It lost out to the rise of gas turbines. Fascinating reading:

Napier Nomad - Wikipedia, the free encyclopedia

Check out the maximum manifold pressure - 89PSI

Last edited by copbait73; 10-12-2011 at 05:15 PM..
Old 10-12-2011, 05:13 PM
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Requires Euro fuel head?
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Old 10-12-2011, 06:17 PM
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For sure and larger fuel lines too
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Lincoln Phillip
87 930 Motec EFI M600 G50/50 TurboKrafted Hell Hound.
Jeep, Chrysler, Dodge, Ram, SRT & AEV Dealer pm me for your Mopar needs.
"the 930 is THE CAR that started my PORSCHE love affair..." Magnus Walker
Old 10-13-2011, 05:50 AM
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Shot with K27 sized turbo for reference:

Old 10-13-2011, 07:25 AM
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I could put that in a trailer behind my 930
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Lincoln Phillip
87 930 Motec EFI M600 G50/50 TurboKrafted Hell Hound.
Jeep, Chrysler, Dodge, Ram, SRT & AEV Dealer pm me for your Mopar needs.
"the 930 is THE CAR that started my PORSCHE love affair..." Magnus Walker
Old 10-13-2011, 07:30 AM
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That whole thing is a pretty stupid idea except when you realize they did not have back then the materials to make good turbine (hot side) blades that would not melt of stretch. Thus, jet engines were not very efficient at making power and were unreliable. They did not have bypass air, either.

Otherwise, it is madness to see they had such a complex system. Axial compressor into a centrifugal compressor into a combustion chamber* then into the turbine, with an extra ignition chamber for more boost. Then the whole mess drives counter-rotating propellers and there is some thrust from the exhaust out the back.

Anyone can see that as you get to a big turbo charger or turbo compounder, it is just a logical extension to get rid of the heavy, complex reciprocating engine and make a nice smooth, light, simple, axial flow turbine.

* combustion chamber = 12 cylinder diesel engine
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Old 10-13-2011, 08:39 AM
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