Rv-10 oil cooler size

[bryanflood]

Hello all,

I have heard some people having high oil temps on the eve-10 with the 20006a oil cooler. It appears that this oil cooler has about 5" x 5" of cooling area, looks like 12 rows. If I look on the airflow systems webpage the 20009a model appears to have about 5" x 7.5" of cooling area, 17 rows I think. This oil cooler is just about 2.5 inches longer and should offer a bit more cooling capacity. The mounting under the cowl would certainly need to be different.

Has anyone tried using this larger oil cooler to get their temps down? I was thinking about this to be a little easier on the expensive engine.

Thanks,

Bryan

[Kyle Boatright]

Originally Posted by bryanflood

Hello all,

I have heard some people having high oil temps on the eve-10 with the 20006a oil cooler. It appears that this oil cooler has about 5" x 5" of cooling area, looks like 12 rows. If I look on the airflow systems webpage the 20009a model appears to have about 5" x 7.5" of cooling area, 17 rows I think. This oil cooler is just about 2.5 inches longer and should offer a bit more cooling capacity. The mounting under the cowl would certainly need to be different.

Has anyone tried using this larger oil cooler to get their temps down? I was thinking about this to be a little easier on the expensive engine.

Thanks,

Bryan

No actual flight experience on the -10, but based on living in the South (I do) and wanting to eliminate oil cooling as a potential issue for my soon-to-be RV-10, I substituted a 8001649-NE cooler from Pacific Oil Cooler Service as a higher efficiency, drop-in replacement.

[DRMA]

I've been talking with Bill of Airflow Systems and his recommendation for the RV-10 with IO-540 engine is their AS-2007X cooler. He even has a set of plans that show how to mount it to the standard Van's RV-10 oil cooler box so that it fits without modification of the cowl or other FWF equipment. The 2007X is only 1" taller than the stock RV-10 cooler.

[Carl Froehlich]

I'm running the AirFlow 2006X on a stock IO-540 from Van's. Never had an oil temp problem. I did however mount the cooler horizontally on the firewall instead of using the Van's oil cooler mount. The Van's mount just looked like too many airflow directional changes to me. I do have a 4" butterfly valve on the air inlet to the cooler as without it oil temps are too low anytime other than summer.

Carl.

[rocketman1988]

I opted for a compromise.

I went with the 2007X, which is a 15 row cooler. It was a very minor mod to the original mount, and should provide additional cooling over the 13 row model. Total mod time was only an hour or so.

I looked at the 2008X for a very long time before I made my decision. I think it would fit but not on the original mount without significant modification.

I think the best way would be to mount the cooler perpendicular to the firewall and use one of Airflow Systems Plenum ducts to supply air to the cooler. This would require removing (or not installing) the VA-186 oil cooler mount on the firewall. The perpendicular mount wouldn't really be a problem, and I think routing the 4" scat from the plenum could be done. I think that setup would give a much better result than the stock mount.

My decision was based on the fact that the VA-186 was already mounted, as well as the engine mount and engine. Let us know which way you go...

[Dorfie]

I installed the 2007X. It is an easy install with minimal changes to the Vans oil cooler mount. I did install an airflow controller in the duct to the oil cooler. Have not used it yet. Oil temps steady at 196F.
I know the guys in South Africa install the 2008X, mounts in the same Vans oil cooler mount. The oil hose attachment orientation is are 90 degrees to standard (Vertical vs horizontal). It was done in response to excessively high oil temps. Jannekom (Jan Hanekom) on VAF has detailed pictures on the 2008X installation.
Cheers.
Johan

[Auburntsts]

I've got the stock cooler with stock mounting and typically see oil temps in the high 180's to mid 190's in cruise with Sea Level temps in the mid 90s. It will spike on climb outs on hot days to as much as 210-215, but cools off quickly once I level off.

[WrightsRV7]

I fly in some of the hottest weather in the country, gateway to death valley...need I say more. I depart with ground temps at 110 and have no issue with oil temp whatsoever using the stock cooler and Vans baffling. Cylinder temps in climb take much more attention with adjustment in climb speed. Second nature in my world. In the climb, yes it will get above 200 in the hottest weather, think once it hit 205, but look at the Lycoming NORMAL operation numbers, this is nothing. When I fly tow-planes we continually have the needle resting on 240 mark.... Just one very stock system/data point (RV-10) that is operating in a very temp-hostile place.

[woxofswa]

Living in AZ, I opted for the Airflow Systems 07 sized cooler. Very easy mod for the standard bracket, just remove some frame material to make the opening larger and mount some angle stock atop to affix the nut plates for the larger footprint. I also have the AFS sharkgills in the side of the cowl and abeam the cooler on that side. They came with the AFS A/C kit. Not only have I never had hot oil temps, even in 110 degree weather, but I was having difficulty staying in the green in the winter time. I ended up adding the butterfly valve to be able to precisely control the temps in all conditions. It works very well.
I like the erring on the cool (conservative) side and the flexibility of the valve, and would build the exact same way again. However, barring extreme situations, I think that the standard setup is adequate.

[rjarrell]

Has anyone installed the "ASIK-03: 90-degree bracket" and repositioned their oil cooler for this bracket. I have the parts but it looks awful tight, just hoping someone has done it and could share some pics. BTW RV-10 with Aero Sport power I0-540 SPL engine. Using upgraded cooler Airflow 2006X on the standard 45 degree Vans cooler mounted to firewall. Thanks