So I'm building a jet engine....
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So I'm building a jet engine....
So, like the title says, I'm building a jet engine. About an hour ago I bought a used turbo from a 2000 F450, they said it was from a 7.4, but I'm pretty sure from the research I've already done it's a 7.3 
Anyways, I just had a couple questions about the turbo that google hasn't been able to help me with yet.
1st: I'm sure I'll be able to answer this in a few days, but does anyone know off the top of their head what the compressor inducer diameter of this turbo is? It'll just help with calculations so I can get the project going fast. I go to school in New York, and I'll be home in FL for a month, and that's where I'm doing the project, so the faster I can get moving, the bettter.
2nd: is it only oil cooled? Or is it water cooled as well? And where's a place I can get the oil and/or water fittings for cheap?
Thanks in advance for the help. I'll be sure to post videos or pictures of my progress.
By the way, I'm Mikey. I drive a 97 BMW M3, but anything that has a turbo is cool to me. Maybe the M3 will one day
Anyways, I just had a couple questions about the turbo that google hasn't been able to help me with yet.
1st: I'm sure I'll be able to answer this in a few days, but does anyone know off the top of their head what the compressor inducer diameter of this turbo is? It'll just help with calculations so I can get the project going fast. I go to school in New York, and I'll be home in FL for a month, and that's where I'm doing the project, so the faster I can get moving, the bettter.
2nd: is it only oil cooled? Or is it water cooled as well? And where's a place I can get the oil and/or water fittings for cheap?
Thanks in advance for the help. I'll be sure to post videos or pictures of my progress.
By the way, I'm Mikey. I drive a 97 BMW M3, but anything that has a turbo is cool to me. Maybe the M3 will one day
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From: Central Florida
Check out Bank's website, they have upgraded compressor wheels deep down in their site, and I am pretty sure it had specs that you could calculate for stock with.
The fittings are going to NPT, if you don't want to spend money on AN lines like Russel, Earls, or Mr Gasket, you can go to your local hardware store. The brass section should have everything you need.
The fittings are going to NPT, if you don't want to spend money on AN lines like Russel, Earls, or Mr Gasket, you can go to your local hardware store. The brass section should have everything you need.
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Originally Posted by weekendwarriorfsw32
Wait let me get this straight your building a Real jet engine
Nick
Nick
http://f1.grp.yahoofs.com/v1/QK5gRxU...02%20forum.TIF
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Not a triditional jet engine but yes you can turn a turbo into a jet engine like hhspunter describes. They did it on an episode of the TV show "Junkyard Wars" ("Scrapheap Challange" in the U.K.)
hhspunter: You have to mount the engine on something. Just lighting it up strapped to a rock in your backyard is not enough or a test. I'm sure you can find a kid in your neiborhood that wants an engine on their bicycle.
hhspunter: You have to mount the engine on something. Just lighting it up strapped to a rock in your backyard is not enough or a test. I'm sure you can find a kid in your neiborhood that wants an engine on their bicycle.
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From: Dallas-Ft. Worth
Originally Posted by hhspunter
Yup. I don't think I'm going to put it on anything, at least not yet... maybe one day. It's not really going to look like a jet engine, but it sure will sound like one. Basically you connect the compressor outlet with the turbine inlet, add fuel between the two, and an ignition source. But to keep it self-sustaining you need the right geometry of combustion chamber, and a way to keep the flame from blowing itself out. So you put a flame tube in the combustion chamber. A picture will explain better than I can:
http://f1.grp.yahoofs.com/v1/QK5gRxUIzEquEe2I1Ef39Mdi-Q6X1_3YNyTQACTaIbbQsDkpc2GUqRnLWdJQoXKjSLMUPoiePpQ uMB4hgbuQ9OsIaUu3Gaw/4_Designs%20and%20Ideas/Adams%20Plans%20%26%20Ideas/how%20it%20works%202%20forum.TIF
http://f1.grp.yahoofs.com/v1/QK5gRxUIzEquEe2I1Ef39Mdi-Q6X1_3YNyTQACTaIbbQsDkpc2GUqRnLWdJQoXKjSLMUPoiePpQ uMB4hgbuQ9OsIaUu3Gaw/4_Designs%20and%20Ideas/Adams%20Plans%20%26%20Ideas/how%20it%20works%202%20forum.TIF
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Basically, you have a flametube, just a pipe inside the combustion chamber, which also happens to be a pipe in most cases. It would possibly work without the flametube, but the flame would most likely blow out if you just injected fuel into the combustion chamber and burnt it. Also, the flametube helps keep EGT down, to prevent the turbine from being damaged. It only allows a small amount of air to enter the combustion area, ensuring the AFR is close to optimum. Most of the air circulates around the outside of the flametube initially, eventually spilling in through the holes further down the flametube. This cool air helps keep the EGT down. Now, as it exits the turbine, only about 30% of the oxygen has been consumed. So what do you do with all the leftover oxygen? Afterburner
You connect another combustion chamber to the turbine outlet and allow the gas to expand a little, add fuel and a flame, and something to keep the flame from being extinguished, and you have your afterburner. Here's a site with some cool videos:
http://www.powerlabs.org/turbine.htm
You connect another combustion chamber to the turbine outlet and allow the gas to expand a little, add fuel and a flame, and something to keep the flame from being extinguished, and you have your afterburner. Here's a site with some cool videos:
http://www.powerlabs.org/turbine.htm