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Search: Posts Made By: seagull
Forum: RV-12/RV-12iS 10-15-2022, 02:13 AM
Replies: 37
Views: 5,392
Posted By seagull
There is more information on the additional oil...

There is more information on the additional oil cooler mod here;
http://waltsrv12.com/engine/adding-second-oil-cooler
take a look around at some of the other things I have done.
Forum: RV-12/RV-12iS 10-07-2022, 12:32 AM
Replies: 37
Views: 5,392
Posted By seagull
I am creating a blog of modifications I have made...

I am creating a blog of modifications I have made to the -12. The additional oil cooler will be first up. I can get into more detail, add pics and descriptions on a blog better than I can do here....
Forum: RV-12/RV-12iS 10-02-2022, 07:38 PM
Replies: 37
Views: 5,392
Posted By seagull
Success!

I have added a second oil cooler and the the first test flights were today. Starting at 1570í I climbed to 7500í continuous at 600fpm, oil temp never exceeded 220f. OAT 85f.
The same flight was done...
Forum: RV-12/RV-12iS 08-18-2022, 01:53 PM
Replies: 37
Views: 5,392
Posted By seagull
I started this thread to ask about oil cooler...

I started this thread to ask about oil cooler options, it morphed into discussion about ways to cool the engine and now comparing ULS to IS.

At no time was my intent to dispute Vanís research, I...
Forum: RV-12/RV-12iS 08-18-2022, 12:32 PM
Replies: 37
Views: 5,392
Posted By seagull
I do not agree the 912is produces that much more...

I do not agree the 912is produces that much more heat than the ULS, especially enough requiring 3X more airflow. Maybe the voltage regulator produces a bit more but it has a dedicated NACA scoop to...
Forum: RV-12/RV-12iS 08-18-2022, 10:41 AM
Replies: 37
Views: 5,392
Posted By seagull
The increase in airflow volume going through the...

The increase in airflow volume going through the cowl looks to be an increase of 300% over the legacy cowl. There is the additional opening for the coolant radiator also 3 additional NACA scoops and...
Forum: RV-12/RV-12iS 08-14-2022, 03:03 PM
Replies: 37
Views: 5,392
Posted By seagull
When I added it, (the thermostasis) the ambient...

When I added it, (the thermostasis) the ambient was in the 80ís, I saw a 3-4 degree rise but that is very subjective. The oil temp rises fast on takeoff but then virtually stops rising while the...
Forum: RV-12/RV-12iS 08-14-2022, 11:41 AM
Replies: 37
Views: 5,392
Posted By seagull
I will add that to my list of things to try. I...

I will add that to my list of things to try.
I did make spacers and longer screws for the bottom 4 cowl screws where the air exits. I lowered it 5/8Ē creating a bigger exit but didnít see a change...
Forum: RV-12/RV-12iS 08-14-2022, 11:00 AM
Replies: 37
Views: 5,392
Posted By seagull
I DO HAVE the cooler moved forward, also HAVE the...

I DO HAVE the cooler moved forward, also HAVE the Aircraft Specialty Flightlines hoses and thermostatis installed. I have also added a IR reflective shield between the muffler and cooler.
Forum: RV-12/RV-12iS 08-14-2022, 08:29 AM
Replies: 37
Views: 5,392
Posted By seagull
I have considered the same thing but am not sure...

I have considered the same thing but am not sure the current oil cooler can do much more. Yesterday I added a temporary baffle in the plenum to direct more air to the oil cooler and less to the water...
Forum: RV-12/RV-12iS 08-12-2022, 11:54 AM
Replies: 37
Views: 5,392
Posted By seagull
The 912is has a completely different cowl. Both...

The 912is has a completely different cowl. Both radiators are up front, there are NACA scoops on both sides. A lot more area to let air in for cooling.
How much difference is made in oil temp having...
Forum: RV-12/RV-12iS 08-12-2022, 10:16 AM
Replies: 37
Views: 5,392
Posted By seagull
I back off RPM at 240f, on a 100 degree day that...

I back off RPM at 240f, on a 100 degree day that will usually get me 2000', if I stay at full power it will keep climbing in temp. I have checked the calibration on the sending unit / Dynon with...
Forum: RV-12/RV-12iS 08-11-2022, 01:00 PM
Replies: 37
Views: 5,392
Posted By seagull
BIGGER oil cooler, anyone tried it?

For those of us that live and fly in the HOT south west. Keeping oil temps reasonable on full power climb outs requires step climbing, or power reduction. It seems if we could get 20% more efficiency...
Showing results 1 to 13 of 13

 
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