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Engine choice

 
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mjpienaar(at)shaw.ca
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PostPosted: Mon Jul 26, 2010 1:13 am    Post subject: Engine choice Reply with quote

Hi all,

Would appreciate your comments and advise. I'm building a TR4 and want to confirm my engine choice will work.

I bought a factory remanufactured LOM M332CE 170 HP aircraft engine with a LOM V541 constant speed propeller. This is a supercharged motor with the ability to engage and disengage the supercharger. The engine weight is +/- 250 lbs and fuel consumption is 7.6 GPH. The 170 HP is developed at 3000 rpm
When I bought the motor I spoke to a Mr E David at Moravia who were then the distributors and he confirmed that he had discussions with KIS and the motor would be suitable.

The only specs I can find on the web is at:
http://members.fortunecity.com/xenviro/Sites/CarterEngines/LOMPraha4.htm
but my engine is not included here.

At the time I bought the motor I was living at an altitude of 5000 feet and thought the supercharger and low weight combined with the constant speed prop would not put me at any disadvantage compared to a normally aspirated 0-360 Lycoming with fixed prop.

I am about to have the engine mount made and want to make sure I'm OK with this installation or should I switch over to a Lycoming?

Thanks for your help

Mike


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jpetrie(at)sonicfactory.c
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PostPosted: Mon Jul 26, 2010 5:38 am    Post subject: Engine choice Reply with quote

Hi Mike,

I’m sure you know my feelings!

Change to the Lycoming. I have had 550 hours of trouble free, peace of mind flying since I did.

John
ZU-BKK


From: Mike Pienaar <[url=mjpienaar(at)shaw.ca]mjpienaar(at)shaw.ca[/url]>
Reply-To: <[url=kis-list(at)matronics.com]kis-list(at)matronics.com[/url]>
Date: Mon, 26 Jul 2010 02:12:55 -0700
To: KISBUILDERS <[url=kis-list(at)matronics.com]kis-list(at)matronics.com[/url]>
Subject: Engine choice

Hi all,

Would appreciate your comments and advise. I'm building a TR4 and want to confirm my engine choice will work.

I bought a factory remanufactured LOM M332CE 170 HP aircraft engine with a LOM V541 constant speed propeller. This is a supercharged motor with the ability to engage and disengage the supercharger. The engine weight is +/- 250 lbs and fuel consumption is 7.6 GPH. The 170 HP is developed at 3000 rpm
When I bought the motor I spoke to a Mr E David at Moravia who were then the distributors and he confirmed that he had discussions with KIS and the motor would be suitable.

The only specs I can find on the web is at:
http://members.fortunecity.com/xenviro/Sites/CarterEngines/LOMPraha4.htm
but my engine is not included here.

At the time I bought the motor I was living at an altitude of 5000 feet and thought the supercharger and low weight combined with the constant speed prop would not put me at any disadvantage compared to a normally aspirated 0-360 Lycoming with fixed prop.

I am about to have the engine mount made and want to make sure I'm OK with this installation or should I switch over to a Lycoming?

Thanks for your help

Mike




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mantafs(at)earthlink.net
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PostPosted: Mon Jul 26, 2010 5:38 am    Post subject: Engine choice Reply with quote

Hi Mike,

I can not tell from the web page but I do not think the engine power is altitude normalized. In other words it looses power with altitude just like a non super charged engine. But the constant speed prop should help so I would guess it will have about the same takeoff and climb thrust as a 180 hp Lycoming at any altitude.

Of course lighter is better. But I assume you are keeping the same gross weight.

There has been at least one TR4 with a 160 hp O-320 Lycoming and fixed pitch prop, so your 170 hp LOM (if it really has 170 hp) should work fine.

Mark

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richard_trickel(at)yahoo.
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PostPosted: Mon Jul 26, 2010 7:11 am    Post subject: Engine choice Reply with quote

Mike
Correct me if I am wrong but I think your engine is a six cylinder inline. I looked at this engine and felt that there numbers were a little off in both weight and horsepower. Would it work? Probably. and it is an aircraft engine so it is in the right direction. Would I put it in is another question. since you already have it I would get a real all up weight of the engine/prop and find out where the engine CG is. Don´t forget the speciel baffling it needs. From that point run the number on a weight and balance. I would bet the cg is well forward as compared to the Lyc. This doesn`t mean it wont work. What do you have to do to make it work.
The super charger will give you more horsepower for takeoff and aI think its manual so you can turn it on and off. Things to think about.
Rich

--- On Mon, 7/26/10, Mike Pienaar <mjpienaar(at)shaw.ca> wrote:

Quote:

From: Mike Pienaar <mjpienaar(at)shaw.ca>
Subject: Engine choice
To: "KISBUILDERS" <kis-list(at)matronics.com>
Date: Monday, July 26, 2010, 9:12 AM

Hi all,

Would appreciate your comments and advise. I'm building a TR4 and want to confirm my engine choice will work.

I bought a factory remanufactured LOM M332CE 170 HP aircraft engine with a LOM V541 constant speed propeller. This is a supercharged motor with the ability to engage and disengage the supercharger. The engine weight is +/- 250 lbs and fuel consumption is 7.6 GPH. The 170 HP is developed at 3000 rpm
When I bought the motor I spoke to a Mr E David at Moravia who were then the distributors and he confirmed that he had discussions with KIS and the motor would be suitable.

The only specs I can find on the web is at:
http://members.fortunecity.com/xenviro/Sites/CarterEngines/LOMPraha4.htm
but my engine is not included here.

At the time I bought the motor I was living at an altitude of 5000 feet and thought the supercharger and  low weight combined with the constant speed prop would not put me at any disadvantage compared to a normally aspirated 0-360 Lycoming with fixed prop.

I am about to have the engine mount made and want to make sure I'm OK with this installation or should I switch over to a Lycoming?

Thanks for your help

Mike


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mjpienaar(at)shaw.ca
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PostPosted: Mon Jul 26, 2010 6:18 pm    Post subject: Engine choice Reply with quote

Hi Rich and others,

Thanks for the input.

Rich, this is the 4 cylinder version so I did not think that weight would be an issue

Thanks for all the help

Mike
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sstearns2(at)yahoo.com
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PostPosted: Mon Jul 26, 2010 6:51 pm    Post subject: Engine choice Reply with quote

Hi Mike,

Is the prop intended for use at 3000 rpm? The M/T has a limit of 2800 rpm I think. I couldn't find anything on your prop.

I found this list if you haven't seen it yet...

http://www.matronics.com/archive/archive-get.cgi?Lom-Archive.digest.vol-aa

Scott



--- On Mon, 7/26/10, Mike Pienaar <mjpienaar(at)shaw.ca> wrote:

[quote]
From: Mike Pienaar <mjpienaar(at)shaw.ca>
Subject: Re: Engine choice
To: kis-list(at)matronics.com
Date: Monday, July 26, 2010, 7:15 PM

Hi Rich and others,

Thanks for the input.

Rich, this is the 4 cylinder version so I did not think that weight would be an issue

Thanks for all the help

Mike
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mjpienaar(at)shaw.ca
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PostPosted: Tue Jul 27, 2010 8:34 am    Post subject: Engine choice Reply with quote

Thanks

I'll check it out

Mike
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