R/C Tech Forums - View Single Post - difference between 4 cycle and 2 cycle engine?
Old 08-09-2004 | 10:28 PM
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mxwrench
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Default Dyno test 4stroke vs. 2stroke

Here are the results of the 2 stroke vs. 4 stroke dyno tests.
The blue lines are the OS FS26S-C 4 stroke and the green lines are the AE ThunderTiger .15 sport engine. Both are completly std. No modifications.

Note: The four stroke came with no exhaust so currently I am using a short headpipe and FS26 silencer I picked up today.

Results clearly show the 4strokes superior torque in lower rpm's.
Almost 50% more than the .15 2 stroke. However the 4stroke is definitely limited in the rpm dept. Powerband is very narrow compared to the 2 stroke.

Later I will show more tests as I make progress in testing.

BK
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