RCV displacement ratio vs. 2-cycles  
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All Forums >> Glow Engines, Gas Engines, Fuel & Mfg Support Forums >> Engine Manufacturers Direct Support Forum >> RCV Engines Support >> RCV displacement ratio vs. 2-cycles
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RCV displacement ratio vs. 2-cycles - 10/5/2007 5:17:57 PM   
ttolliver


 

Posts: 9
Joined: 3/7/2005
From: Carver, MN, USA
Status: offline 		Good morning,

Do the RCV CD line of engines follow the old rule of thumb about about 4C displacement x 70% matching recommended 2C displacements? Specifically, would the RCV58-CD continue to rate equivalent to a standard .40? Or has the newer technology edged the comparision a bit more favorably...perhaps closer to a .46? I guess that would be 80%.

I know these are difficult comparisons to make between 4C and 2C, so really just looking for the general perception rather than empirical BHP comparisions, etc.

As a side note, I'm returning to the hobby after a dozen years away. I have an RCV58-CD in a Sig LT-40 nearing completion, and will pick up another for the Sig Kavalier just underway. I anticipate transitioning out of the trainer pretty quick and my eye has been caught by a 40-sized kit that calls for a high performance 40 or standard 46. I'd like to bounce the first 58-CD into the third project and keep 2 planes in the air that way. Of course, that doesn't count the 60-sized Tiger Moth kit I have that's screaming for a 91-CD

Thanks,
Tom
       Post #: 1

RE: RCV displacement ratio vs. 2-cycles - 10/8/2007 2:01:57 PM   
RCV Engines


 

Posts: 509
Joined: 4/11/2002
From: WimborneDorset, UNITED KINGDOM
Status: offline 		Hi Tom

Thank you for your posting. I can tell you that our RCV58-CD 4 stroke engine is the equivalent to a .40 2 stroke engine, with a displacement of 0.58 cu inch / 9.5 cc. Our RCV91-CD 4 stroke is the equivalent to a 0.60 2 stroke, with a displacement of 0.91 cu inch / 15cc.

I hope this answers your question and have fun with all your new projects.

Many thanks

Stephanie


_____________________________

Technical Support
RCV Engines - UK

(in reply to ttolliver)
       Post #: 2

RE: RCV displacement ratio vs. 2-cycles - 10/9/2007 12:34:08 AM   
ttolliver


 

Posts: 9
Joined: 3/7/2005
From: Carver, MN, USA
Status: offline 		Thanks for the info Stephanie!

(in reply to ttolliver)
       Post #: 3

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All Forums >> Glow Engines, Gas Engines, Fuel & Mfg Support Forums >> Engine Manufacturers Direct Support Forum >> RCV Engines Support >> RCV displacement ratio vs. 2-cycles
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