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kubelmann Samba Member
Joined: April 13, 2003 Posts: 3266
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Posted: Tue Nov 21, 2017 6:57 pm Post subject: AA Performance Thing shroud with type 4 oil cooler |
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AA Performance products has some nice looking Thing cooling shrouds for some Thing in need.... I have no connections with AA other than using their good priced pistons and jugs with happy success.
https://aapistons.com/collections/sale-items/produ...oil-cooler |
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74 Thing Samba Member
Joined: September 02, 2004 Posts: 7370
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kubelmann Samba Member
Joined: April 13, 2003 Posts: 3266
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Posted: Tue Nov 21, 2017 10:21 pm Post subject: Re: AA Performance Thing shroud with type 4 oil cooler |
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I only ran into the AA site with the shrouds today. The shroud you listed is a lower price. The type 4 addition is an old offroad trick for larger motors with higher compression. In the path of building high compression 1915 motors, I have built/modified a number of Thing shrouds to hold a type 4 cooler. It is cool to see a modification that was previously hand built from two shoruds now available without clean air holes. A used stock 73 shroud has been $250 for a long time now. So, a new one made to the same speces is a nice deal especially for an owner without fabrication skills. It is cool that you listed a lower priced source... |
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EDragnDean Samba Member
Joined: July 13, 2005 Posts: 1148 Location: Vancouver, WA
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kubelmann Samba Member
Joined: April 13, 2003 Posts: 3266
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Glenn Mr. 010
Joined: December 25, 2001 Posts: 76760 Location: Sneaking up behind you
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Posted: Wed Nov 22, 2017 6:58 am Post subject: Re: AA Performance Thing shroud with type 4 oil cooler |
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No coil mount nutserts.
As for the T4 oil cooler.. i had one on my 1904 and didn't notice any improvement. My current 2180 has a Type 1 oil cooler (Genuine 73 Type 181 shroud) and it runs as cool as stock. _________________ Glenn
74 Beetle Specs | 74 Beetle Restoration | 2180cc Engine
"You may not get what you pay for, but you always pay for what you get"
Member #1009
#BlueSquare |
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74 Thing Samba Member
Joined: September 02, 2004 Posts: 7370
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Posted: Wed Nov 22, 2017 7:49 am Post subject: Re: AA Performance Thing shroud with type 4 oil cooler |
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I believe that the type IV cooler was due to the info in the Berg blue book.
If my memory serves me right Jake Raby did a test back in the day and indicated that it did not help since no more air is being diverted over the larger cooler when compared to a type 1 cooler. |
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kubelmann Samba Member
Joined: April 13, 2003 Posts: 3266
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Posted: Wed Nov 22, 2017 8:02 am Post subject: Re: AA Performance Thing shroud with type 4 oil cooler |
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The point of my original post was to let folks who had not seen it aware that there are some rare shrouds in ALL styles at a reasonable price and nice looking quality. They have all flavors from straight stock to modified. It was not a pitch for the t 4 oil cooler conversion... I did not notice the missing coil nuts ~~good eye Glenn... |
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Wildthings Samba Member
Joined: March 13, 2005 Posts: 50255
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Posted: Wed Nov 22, 2017 9:48 am Post subject: Re: AA Performance Thing shroud with type 4 oil cooler |
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It would be interesting to see if this setup had any positive effects on cooling with no down side. I have bought a late model Bug fan shroud with the factory velocity ring and will install it the next time my engine is out. Might do the T-4 cooler swap as well as I have multiple T-4 coolers available.
Have also thought about building a bulge in the body (the back shelf area on a Thing) to give a larger crossectional area for air flow in front of the fan inlet. The inlet area has just always seemed restrictive to me. Others thoughts on doing this? |
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Jake Raby Samba Member
Joined: August 23, 2003 Posts: 7433 Location: Aircooled Heaven USA
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Posted: Wed Nov 22, 2017 9:16 pm Post subject: Re: AA Performance Thing shroud with type 4 oil cooler |
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Never saw a benefit from this... Back to back the oil temps ran the same, or hotter, and the CHTs suffered on cylinder #1. _________________ Jake Raby
Raby Engine Development
www.rabyenginedevelopment.com
"I've never given anyone Hell, I just told them the truth and they thought it was Hell" |
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