ECi O-340/IO-340

cjensen · Post by **cjensen** » Fri Sep 22, 2006 11:35 am

I've been watching for one of these to pop up in an RV, but haven't heard a thing about them yet. Anybody know anything? I have a bunch of literature at home about 'em, and the O-340 is supposed to put out 177hp without the complexity and weight of ECi's Injected system and return lines.

captain_john · Post by **captain_john** » Fri Sep 22, 2006 8:21 pm

Chad, Chad, Chad...

The O-360 is 180 hp... as you know.

It is cheaper.

It is more traditional.

It is more available.

It is potentially more relaible.

It has the weight where you need it.

It is proven.

Why do you want a 340?

CJ

cjensen · Post by **cjensen** » Fri Sep 22, 2006 10:46 pm

captain_john wrote:The O-360 is 180 hp... as you know.

I do know...

captain_john wrote:It is cheaper.

No it's not...

captain_john wrote:It is more traditional.

No it's not...

captain_john wrote:It is more available.

Not neccesarily...340's are gonna be built whenever somebody wants one...

captain_john wrote:It is potentially more relaible.

So is a Subaru...

captain_john wrote:It has the weight where you need it.

It's a little heavier than a -320, and those work fine for -7's...

captain_john wrote:It is proven.

True, but aren't you planning a -390?

captain_john wrote:Why do you want a 340?

Less weight, same power.

I like the idea of building a very light RV, and this is a possible route that would give me less weight (more like a -320) with the power of a -360. Sounds faster to me. I threw the Subaru comment in just to get a rise out of you guys...

You want a -390 and a CS prop because you WANT one. I don't know what engine I want yet, but if I decide on a -340, it'll be because I WANT one.

You gonna be around tomorrow (Saturday)?

captain_john · Post by **captain_john** » Sat Sep 23, 2006 7:28 am

If you were doing a -9, I would wholeheartedly agree.

The -7 can take the weight and power, and is happy doing it...

Yes, I will be on the phone Saturday going from airport to airport. Need to get the Chief out of annual and some other errands.

Gimme a call and we can talk more.

CJ

Wicked Stick · Post by **Wicked Stick** » Sat Sep 23, 2006 9:11 am

If I were putting a new engine on my RV-4, I'd definitely go with the 340 and a composite constant speed prop.

But looking at the C.G. of a 7, I'd opt for the IO-360 or 390.

cjensen · Post by **cjensen** » Sat Sep 23, 2006 1:18 pm

If a James cowl is used, there is a 4" extension required for the prop. This would certainly help CG issues. I'm NOT saying I'm using this engine. I'm more or less curious if there are any out there yet...

If a traditional engine is on my plate, my first choice right now is a Mattituck TMX IOF-360. Mmmmm FADEC...

dons · Post by **dons** » Sat Sep 23, 2006 2:56 pm

cjensen wrote:If a traditional engine is on my plate, my first choice right now is a Mattituck TMX IOF-360. Mmmmm FADEC...

Good choice! That's the one on the top of my list right now, but I have a long time to make up my mind.

captain_john · Post by **captain_john** » Sat Sep 23, 2006 3:31 pm

I am not a big fan of prop spacers.

I know there are many of them out there. The whole rotating mass out on an extension thing doesn't appeal to me.

It seems somehow problematic at best. With all the balancing stuff going on today I estimate that the closer the prop is to the engine, the better off things can be. That isn't saying that you can't get an engine to "feel smooth"with an extension on it. I just think that all things being equal, the extension doesn't help anything out in regards to smoothness.

Also... the James Cowl, according to a 7A builder around here has alot to be desired. He isn't thrilled with product quality and/or the fit of the plenum.

I am going stock Vans.

CJ

captain_john · Post by **captain_john** » Sat Sep 23, 2006 3:36 pm

OH!

When doing the James Cowl, I hear that a shorter (2" I think) spacer is needed with a CS prop.

This is in contrast to the 4" one required for the FP.

FOUR INCHES!!! That is too much potential for wobble in my book.

...but I am sure these things are well made and probably fine.

CJ

Post by **Spike** » Sat Sep 23, 2006 4:56 pm

All this whining about which engine, yadda yadda yadda. I just cant wait to see the looks on yer faces when I keep up with you all in my lowly 9A

captain_john · Post by **captain_john** » Sat Sep 23, 2006 8:28 pm

Oh... you SHOULD keep up in the -9A!

No bout a doubt it!

See you at FL 22!

CJ

Wicked Stick · Post by **Wicked Stick** » Sun Sep 24, 2006 8:57 am

Spike wrote:All this whining about which engine, yadda yadda yadda. I just cant wait to see the looks on yer faces when I keep up with you all in my lowly 9A

When we are all finished and all flying, I'll remember to bring that up at the first RB fly-in

Post by **Spike** » Sun Sep 24, 2006 9:33 am

Better that than ask about the proseal incident.

Wicked Stick · Post by **Wicked Stick** » Mon Sep 25, 2006 8:22 pm

Oh, I wouldn't trouble you Spike to find out about the Pro-Seal incident...
I'd go straight to Patti and ask her to show me all the photos of it instead.

Post by **Spike** » Tue Sep 26, 2006 6:42 am

There were no photos. Matter of fact Patti really didnt get to see the whole thing. Nice try though.