engine range info required

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engine range info required

Postby BRIAN PEART » Fri Jun 29, 2012 5:37 pm

info now not required
Last edited by BRIAN PEART on Fri Jul 06, 2012 5:18 am, edited 1 time in total.
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Postby SteveM » Fri Jun 29, 2012 5:43 pm

A great source of info is the American Modeler Association. A quick search on their web pages turned up the following;

VINTAGE—(GAS)
A. Engine displacement to 0.20 cubic inches.
B. Engine displacement from 0.20 to 0.30 cubic inches.
C. Engine displacement from 0.30 to 0.65 cubic inches.
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Postby SteveM » Sun Jul 01, 2012 7:21 am

http://rcvehicles.about.com/od/nitroeng ... cement.htm

Typical RC Engine Displacements

Common RC engine displacements range from about .12 to .46 and larger. These numbers that begin with a decimal point are the displacement in cubic inches. Sometimes the abbreviation ci is appended to the measurement. But just remember that a .18 engine is actually .18ci or .18 cubic inches of displacement.

That same .12 to .46 range, expressed in cubic centimeters would be approximately 1.97cc to 7.5cc of displacement. You can use an online conversion tool to quickly convert from cc to ci or ci to cc. Here's a small reference list (cc is rounded) to give you an idea of how cubic inches compare to cubic centimeters:

.12ci - 2.0cc
.15ci - 2.5cc
.18ci - 3.0cc
.21ci - 3.5cc
.25ci - 4.1cc
.27ci - 4.4cc
.32ci - 5.2cc
.36ci - 5.9cc
.46ci - 7.5cc

Determining Size by Numbers in a Name

Studying the manufacturers specifications is the best way to determine engine size, but manufacturers will often include a number in the name of the vehicle or the name of the engine that represents the displacement. For example, the HPI Firestorm 10T is described as having a G3.0 engine. The 3.0 refers to the displacement of 3.0cc. That 3.0cc is the equivalent of a .18 engine.

The Supertigre G-27CS engine, found in the DuraTrax Warhead EVO is a .27 big block engine. It has a 4.4cc displacement. Traxxas often puts the engine size right in the name of the vehicle, to differentiate an earlier model with a different engine size. The Jato 3.3, the T-Maxx 3.3, and the 4-TEC 3.3 all feature the TRX3.3 engine. That's 3.3cc, which translates to something like a .19 engine when expressed in cubic inches.
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