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Ekin
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Joined: August 16, 2015
Posts: 39
Location: Türkiye
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 Posted: Tue Jul 28, 2020 9:10 am Post subject: Engine Air Parts |
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Hi, i'm trying to make from this spare part, but having problems with the dimensions. Does anyone have a measure or a ready-drawn version? if i succeed, i will distribute it. free.
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sjbartnik
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Joined: September 01, 2011
Posts: 6041
Location: Brooklyn
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| Posted: Tue Jul 28, 2020 2:33 pm Post subject: Re: Engine Air Parts |
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Y tho
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Abscate 
Samba Member
Joined: October 05, 2014
Posts: 24021
Location: NYC/Upstate/ROW
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| Posted: Tue Jul 28, 2020 5:09 pm Post subject: Re: Engine Air Parts |
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That’s a great blue color
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Ekin
Samba Member
Joined: August 16, 2015
Posts: 39
Location: Türkiye
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| Posted: Thu Jul 30, 2020 11:19 am Post subject: Re: Engine Air Parts |
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is there anyone who can help?
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ToolBox
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Joined: January 27, 2004
Posts: 3439
Location: Detroit, where they don't jack parts off my ride in the parking lot of the 7-11
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| Posted: Thu Jul 30, 2020 11:32 am Post subject: Re: Engine Air Parts |
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| Ekin wrote: |
| is there anyone who can help? |
I think I saw them on one of the European bus parts vendor sites. |
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busdaddy
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Joined: February 12, 2004
Posts: 52876
Location: Surrey B.C. Canada, but thinking of Ukraine
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SGKent
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Joined: October 30, 2007
Posts: 42731
Location: at the beach
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| Posted: Thu Jul 30, 2020 12:31 pm Post subject: Re: Engine Air Parts |
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a scientific review of these would be beneficial if anyone uses them.I can see where in some aspects it might benefit the air flow, and in other ways it would hamper it. Same said for the ingestion of rain and bugs.
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aeromech
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Joined: January 24, 2006
Posts: 17660
Location: San Diego, California
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| Posted: Thu Jul 30, 2020 1:15 pm Post subject: Re: Engine Air Parts |
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I'm a jet engine mechanic. If you try to stuff too much air into the intake of a turbine engine it will cough. The point is that I assume that those VW engineers figured out just how big to make those air scoops based on the airflow through the engine carburetor and cooling fan. Too much might only create excessive drag but not hurt the engine like in a plane but I doubt there would be a benefit.
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jtauxe
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Joined: September 30, 2004
Posts: 5976
Location: Los Alamos, New Mexico, USA
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| Posted: Thu Jul 30, 2020 2:35 pm Post subject: Re: Engine Air Parts |
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I expect that these scoops are unnecessary, and are arguably detrimental.
Unnecessary, because I do not expect that the vents in the photo are the limiting factor in getting air across the engine -- probably more the fan in the engine compartment.
Detrimental because these will wear on that beautiful blue paint and cause bare spots that will turn into rust spots. Like a bra on the nose, it causes more problems than it ostensibly solves.
And that blue is a nice color -- looks a lot like Reef Blue to me, in that photo.
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JaimeH
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Joined: April 24, 2012
Posts: 266
Location: Canterbury, NH
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| Posted: Thu Jul 30, 2020 4:37 pm Post subject: Re: Engine Air Parts |
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| aeromech wrote: |
| I assume that those VW engineers figured out just how big to make those air scoops based on the airflow through the engine |
I agree.
Those extensions were made to sell not necessarily work. Without proper research in the design they could easily create a vortex or high pressure area that could limit the air intake.
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Wildthings
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Joined: March 13, 2005
Posts: 52441
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| Posted: Thu Jul 30, 2020 6:34 pm Post subject: Re: Engine Air Parts |
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| It is hard to know without testing which way the wind is moving along the side of the van at that point, let alone things that are more subtle. |
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TomWesty
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Joined: November 23, 2007
Posts: 3529
Location: Wyoming,USA
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| Posted: Fri Jul 31, 2020 2:34 pm Post subject: Re: Engine Air Parts |
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Anyone out there running CHT gauges that wants to do some testing? My bet is that it will help. If one didn’t want to buy them, they could at least make a cardboard mock-up. I may try a poor boy scientific test of engine compartment ambient temps. I have a cheap temp gauge that could live back there. Even remote meat thermo in water would do.
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Wildthings
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Joined: March 13, 2005
Posts: 52441
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| Posted: Fri Jul 31, 2020 2:38 pm Post subject: Re: Engine Air Parts |
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| TomWesty wrote: |
| Anyone out there running CHT gauges that wants to do some testing? My bet is that it will help. If one didn’t want to buy them, they could at least make a cardboard mock-up. I may try a poor boy scientific test of engine compartment ambient temps. I have a cheap temp gauge that could live back there. Even remote meat thermo in water would do. |
Somewhere I have a pressure differential gauge that IIRC reads to 0.1" of water. |
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aeromech
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Joined: January 24, 2006
Posts: 17660
Location: San Diego, California
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| Posted: Fri Jul 31, 2020 9:17 pm Post subject: Re: Engine Air Parts |
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I’ve got better things to spend my time doing. This does however seem to be much like a Jake Raby project. Maybe he’s already done the testing considering all the other air flow testing he’s done
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BAe146
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TomWesty
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Joined: November 23, 2007
Posts: 3529
Location: Wyoming,USA
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| Posted: Fri Jul 31, 2020 9:47 pm Post subject: Re: Engine Air Parts |
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| aeromech wrote: |
| I’ve got better things to spend my time doing. This does however seem to be much like a Jake Raby project. Maybe he’s already done the testing considering all the other air flow testing he’s done |
Same here on the time thing. Jake was the first person I thought of. There’s a guy on YouTube building a plane that has a conventional engine. His oil cooler is in the tail area and if I recall, he has a scoop that can be varied in order to change the flow of air past his oil cooler. This guy is a stickler for doing the math. The thing I wonder about on a bus is how much air can exit? At a certain point that will limit any gains by scoops. Anyway, keeping mine warm enough is more of an issue than cooling it. 
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SGKent
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Joined: October 30, 2007
Posts: 42731
Location: at the beach
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| Posted: Fri Jul 31, 2020 9:56 pm Post subject: Re: Engine Air Parts |
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| TomWesty wrote: |
| aeromech wrote: |
| I’ve got better things to spend my time doing. This does however seem to be much like a Jake Raby project. Maybe he’s already done the testing considering all the other air flow testing he’s done |
Same here on the time thing. Jake was the first person I thought of. There’s a guy on YouTube building a plane that has a conventional engine. His oil cooler is in the tail area and if I recall, he has a scoop that can be varied in order to change the flow of air past his oil cooler. This guy is a stickler for doing the math. The thing I wonder about on a bus is how much air can exit? At a certain point that will limit any gains by scoops. Anyway, keeping mine warm enough is more of an issue than cooling it. |
VW makes block heaters and vent covers for really cold weather. As for the interior have you considered Bison robes and beaver or hats made from local varmit? It worked for Jeremiah Johnson.
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Abscate
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Joined: October 05, 2014
Posts: 24021
Location: NYC/Upstate/ROW
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| Posted: Sat Aug 01, 2020 4:30 am Post subject: Re: Engine Air Parts |
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| aeromech wrote: |
| I'm a jet engine mechanic. If you try to stuff too much air into the intake of a turbine engine it will cough. The point is that I assume that those VW engineers figured out just how big to make those air scoops based on the airflow through the engine carburetor and cooling fan. Too much might only create excessive drag but not hurt the engine like in a plane but I doubt there would be a benefit. |
I think complete testing will also require frozen chicken engine ingestion
Thanks for signing up, Aeromech
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HoboBus
Samba Member
Joined: December 29, 2016
Posts: 350
Location: Not Key West, unfortunately.
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| Posted: Sat Aug 01, 2020 5:47 am Post subject: Re: Engine Air Parts |
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| SGKent wrote: |
It worked for Jeremiah Johnson.
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What a great movie.
"He says you fish poorly."
"Elk don't know how many legs a horse has!"
Will Geer had the best deadpan delivery.
I think trying to force a frozen chicken through the motor would cause excessive drag.
Relative to that, I doubt the plastic scoops would hurt any.
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cmonSTART
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Joined: July 15, 2014
Posts: 1915
Location: NH
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| Posted: Sat Aug 01, 2020 7:02 am Post subject: Re: Engine Air Parts |
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| Abscate wrote: |
| aeromech wrote: |
| I'm a jet engine mechanic. If you try to stuff too much air into the intake of a turbine engine it will cough. The point is that I assume that those VW engineers figured out just how big to make those air scoops based on the airflow through the engine carburetor and cooling fan. Too much might only create excessive drag but not hurt the engine like in a plane but I doubt there would be a benefit. |
I think complete testing will also require frozen chicken engine ingestion
Thanks for signing up, Aeromech |
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Ekin
Samba Member
Joined: August 16, 2015
Posts: 39
Location: Türkiye
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| Posted: Tue Aug 04, 2020 1:10 pm Post subject: Re: Engine Air Parts |
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would appreciate if u help with its dimensions  i'll test it with a heat meter and write
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