Hose to 13 Row oil cooler

[RV7ForMe]

Hey, I have been doing some tinkering with Fusion360. I am still learning the ropes. Wanted to Give the transition from the Oil cooler to the 4inch Hose a shot.
If you have been down this road let me know if what you think.

My Plan was to print a mold and just lay fiberglas in it. Does the shape make a meaningful difference in airflow and cooling?

 

[bjdecker]

Yes! I think @hgerhardt measured a significant difference in w.c. translating into less pressure loss, higher mass flow, more efficiency.

 

[hgerhardt]

........ Wanted to Give the transition from the Oil cooler to the 4inch Hose a shot.
.........If you have been down this road let me know if what you think.

My Plan was to print a mold and just lay fiberglass in it. Does the shape make a meaningful difference in airflow and cooling?

Have you checked out this thread?: https://vansairforce.net/threads/ducts-matter.188113/ I attached several STEP files to that which you could use as-is or as templates to modify in Fusion360 to your liking.

If you make the parts via SLS or MJF in PA12 (nylon), you won't have to go the fiberglass route (unless you want practice in that craft as well).

 

[RV7ForMe]

Oh boy Looks like much smarter people than me have solved this problem. Thank you so much for sharing this. Anyone tried the aluminium printer (online service) ?
@hgerhardt did you incorporate any kind of door to control airflow? From what I read the 13 row is pretty large for cooler weather on the O360/370

 

[hgerhardt]

Oh boy Looks like much smarter people than me have solved this problem. Thank you so much for sharing this. Anyone tried the aluminium printer (online service) ?
@hgerhardt did you incorporate any kind of door to control airflow? From what I read the 13 row is pretty large for cooler weather on the O360/370

Yeah, "13-row" is pretty large for an O-360, especially if it doesn't have piston squirters. I do not have a door to control airflow, and with my smaller SW 10599R cooler, it isn't really necessary in my SoCal climate. You could just install a butterfly valve between my elbow and oil cooler adapter. Someone here makes am aluminum one. Better yet, go design one in Fusion360 and offer it here. Make it integral with my elbow.

You could make those duct parts in printed aluminum, but might be more $$ than you're willing to spend. PA12 nylon via MJF or SLS works well in this application and significantly cheaper.

 

[wirejock]

I have the RV10 13 row remote on the firewall. Cold weather in CO, I can almost run with the butterfly closed. Most of the time it's slightly open. I did it for hot flying in Texas Summer.
Nothing fancy. Just a butterfly in a 4" flange in the #4 baffle. 4" SCAT. RV10 mount.