I dug out my August 2003 Sport Aviation Magazine that has a good article on engine cooling. It's the one I read that convinced me to add tunnels in the first...
That's the spreadsheet I used to do my cooling system design, although I'm not sure I could do a good job of explaining it. You basically plug in the numbers...
OK, I didn't read it cover to cover. But I did find some interesting info. One of the conclusions from this research is listed as: "Current design practices...
Mike, Think back to 407L - Lancair's factory ES Why does it cool so effectively and none of our plane will??? Same engine, no Dolly's - just big ugly exit...
I believe this is all resolved with a good airtight plenum. I am going to build one for my TSIO550. It probably wouldn't be too hard to adapt it to the...
I think 407L has the IO550G instead of the IO550N model that we have. I recall a conversation years back with someone from TCM about the difference. The G...
Interesting, the guy at my field, Bud Wasserot, has a G that he cranked up to 2700 RPM. He's running cool too. This could be something to check into. Mike...
TCM lists the same oil cooler for both models. I'm pretty sure the G model was developed for the Mooney Ovation, to limit HP for certification. Mike...
Nice work Dan and Mike. It looks like these engines are very similar. The only slight difference is the brake horsepower at "Rated Maximum Continuous...
Guys, TCM shows the "G" engine: http://www.tcmlink.com/EngSpecSheetDocs/IO550G.doc and the "N" http://www.tcmlink.com/EngSpecSheetDocs/IO550N.doc Very similar....
Drew, I went back through a series of photos from N407L right after it had a new rebuilt engine installed in April of '03. I took these at SNF. Mark Mahnke ...
The heat has the 1 1/2 tubing instead of the 2" that is one difference. Ron Raby ... From: mikeeasley@... To: Lancair_ES@yahoogroups.com Sent: Tuesday,...
Ron, I looked through some other photos. It's set up the same way as mine, 2" from the baffle to the first muff, 2" from the first to the second muff, 1.5" ...
Nice comparisons Mike, My exit holes were larger than 407L - Same width - but mine extended to the front more - I measured them when we were in Redmond. I did...
Tim will need to look at it for us. It looked the same, but I did not pull the info off of the cooler. Drew ... From: Ron Raby To: Lancair_ES@yahoogroups.com ...
Mike, I agree, it is a different cooler. I agree - there appears to be 2 differences. The distance is less on 407L. Also, the bottom of the vernatherm is...
Here's a photo of my cooler, IO-550N13B, bought summer of '03, factory reman. It looks like the IO-550N photo from the earlier e-mail. This appears to be ...
Mike, The vernatherm in the figure 18-3 looks very similar to mine on my TSIO0550. My oil temp sensor is located approximately where the text "Oil out to...
Tom - Is the lip on the inside or outside of the lower cowl? Would you have a picture? I've seen Lon and Pam's ES several times but can't recall focusing on...
There have been some additions and corrections made to the ES Excel Database. Attached is the most recent. Bryan "Only The <http://www.mwheli.com/> Best With...
Hey guys, I hope I'm not beating a dead horse but I was looking for something else and ran across the following in an old Lancair Network News, Apr/May '01....
Hey Guys, If anyone's beating a dead horse, it's me! I talked to Tom Lawson yesterday. Apparently he's been looking at Lon and Pam Kelly's airplane. They...
Tammy has sold about everything and is calling it done.. She wanted to thank everyone that enquired on what she hand and wanted to thank everyone for taking...
N407L has a different oil cooler, TCM# 654580. The IO-550N is shipped with TCM #654585. I think the rest of us have 654585 coolers; different coolers and...
For what it's worth. Rostra Vernatherm makes the vernatherms. Here's a diagram from their brochure. The text refers to the two designs as "square" and "cap"...
The vernatherm for the IO-550N is #656085 according to TCMLink.com for my engine. I'll try to contact TCM and Rostra and get some specs. I still think it's...
