Hi,
I have a set of these baffles, They sure work great. I will try to get a picture and post sometime this week. The "Poor man" Solution is to use duct tape. ( I used it for years)Depending on temp , Two or three strips on each side and away you go. It does not hurt to put a strip over the oil cooler also if you temp is runnin' on the bottom peg. Another modification that is a must , move the cabin heater ducts to the front of the cowling, So when the baffles/duct tape is covering the front you have "ram air"for for the cabin. You will be able to see that in the pic also.
Regards,

My '05 7GCBC has a three position ground adjustable cowl located at the bottom rear of the bottom engine cover. We have modified others including an experimental aircraft with this cowl. Works great along with the oilcooler plate to bring the temps up in the cold wx. I will post a picture later.
HC

I have a little aluminum plate I out over the oil cooler in the winter months. I don't know how much it increases oil temps but it has to be doing something.
The flange at the front of the engine baffling & the scat to the heat muff providing both cabin heat & carb heat in pretty large on my airplane. I recently experimented with covering about 1/3 of the opening with alum tape, and it did seem to increase the available cabin heat. Less air flow = higher delta T (temperature differential)-- in other words, more heat picked up by the air going through the heat muff.

swixtt wrote:thanks guys... so great to get some responses on this.
on this 7ECA i have no oil cooler but i do have a 2" duct that takes air right from behind the cyclinders and blows cold air right on the oil filter.(i have the spin-on at the top of this 0-235) would that make enough of a difference if i blocked that off?
would like to see these pics whenever you can get them posted!

The C-170 has a couple blast tubes that bow air on the oil screen area. In the wintertime, I used to cover up the inlet to these at the rear engine baffling. Same thing as you're talking about.

Ditto on the duct tape (aka 'Dixie Chrome'). Depending on the temp, I would cover anywhere from 25% of the oil cooler at 32 deg. to 100% at minus -25 deg. I ran the '76 KCAB like that in the winter for the nearly 600 hours I owed the plane... never a problem.

I like the slotted attach holes for adjustable outlet size. Smart. Usually you see people covering the air inlet up front, as per the C170 "winterization kit" which covers part of the inlet grills on the 1948-52 models.

hotrod150 wrote:

swixtt wrote:thanks guys... so great to get some responses on this.
on this 7ECA i have no oil cooler but i do have a 2" duct that takes air right from behind the cyclinders and blows cold air right on the oil filter.(i have the spin-on at the top of this 0-235) would that make enough of a difference if i blocked that off?
would like to see these pics whenever you can get them posted!

The C-170 has a couple blast tubes that bow air on the oil screen area. In the wintertime, I used to cover up the inlet to these at the rear engine baffling. Same thing as you're talking about.

I made a plate that covers the air inlet that cools the oil pan on my old C-170.. I've seen the covers that partially cover the cylinder inlets