2018+ Softail Models Breakout

Engine comparison

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Old Oct 26, 2021 | 01:19 PM
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Question Engine comparison

Looking for engine smoothness comparison between twin cam and m8 at cruising and upper rpms Thanks in advance
 
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Old Oct 26, 2021 | 09:39 PM
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M8 is a much smoother engine at idle and on Hwy.
 
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Old Oct 26, 2021 | 10:22 PM
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Definitely notice much less vibration on M8.
 
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Old Oct 26, 2021 | 10:26 PM
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Depends what model you are comparing.....If you are comparing a twin cam touring to a M8 softail, then the twinkie is smoother.
 
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Old Oct 27, 2021 | 06:09 AM
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My bad sorry I am comparing twin cam heritage to a m8 heritage
 
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Old Oct 27, 2021 | 06:16 AM
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The M8 is a much much better package and the engine is way better too.
 
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Old Oct 27, 2021 | 11:27 AM
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Originally Posted by Agoober
The M8 is a much much better package and the engine is way better too.
Agree. The M8 Heritage has a great suspension and motor upgrade. Works very well for 1-up riding and touring. Not so great for 2-up, however. The rigid mount engine gives more vibration at higher RPMs than a touring model. My BIL (40-year HD rider) loves his M8 Street Glide (compared to his Twin Cam) and I find that it's smoother at highway speeds than my '18 Heritage.
 
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