Milwaukee Eight (M8) 2017 and up M8 Air and Liquid Cooled discussion
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Old Jan 18, 2019 | 06:26 PM
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Default 107 or 114

What's the difference between the two I can't seem to find an answer Want to know because I'm looking at two different rgs 2018 and a 19 What's the difference. Is it worth the money for the 114
 
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Old Jan 18, 2019 | 06:33 PM
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Seriously...the difference is 7 Cu/In. Nothing really mind blowing, when you're buying a "cruiser."
 
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Old Jan 18, 2019 | 06:35 PM
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About $214 per cubic inch.
 
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Old Jan 18, 2019 | 06:47 PM
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Dyno numbers are always to be taken with a grain of salt, because they depend on the dyno, when it was last calibrated, the skill or objective of the operator, the air temp, the humidity, etc., etc., etc..

A stock 107 makes around 75-ish hp at the rear wheel, a 114 around 80-ish.

Only you know if that's going to make a meaningful difference in an 800-950 pound motorcycle.
 
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Old Jan 18, 2019 | 07:06 PM
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Depends on the difference, on the numbers they are giving u.
 
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Old Jan 18, 2019 | 07:48 PM
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The difference is the 107 has a 4 3/8" stroke and the 114 has a 4 1/2" stroke...i realize that may not be mind blowing to some but some people will look at future mods and the potential for a larger displacement by going with 114 from the start. Stock they're pretty close but start changing out a few parts and the measly 7 cubic inches seems to be worth it...if that's your thing...if not buy either one and you'll be happy.
 
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Old Jan 18, 2019 | 08:11 PM
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It's about 10 lb ft of torque difference, which is pretty noticeable and to me feels right for the weight of the bike. I had the dealer upgrade mine to a 114 as it was not available in 17. When you could order the 114 in 18, it was cheaper from the factory. It cost me about $3,000 with an intake but I got a winter sale/deal.
 
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Old Jan 18, 2019 | 08:25 PM
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Saved enough $ on a leftover 18 RGS to add the the stage 3 kit. I did not ride the 114 so I can't comment. After owning a 17 107 and an 18 wth the stage 3 kit, there is big difference. No regrets
 
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Old Jan 18, 2019 | 08:36 PM
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If you are a "leave it stock" person get the extra cubes. If you are going to modify it right away get the 107 and use the extra dough to make it fast.

I got the 114 then modified and probably should have got the 107 then spent the several grand and still had a quick bike.
 

Last edited by fairlydangerous1; Jan 18, 2019 at 08:37 PM.
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Old Jan 18, 2019 | 09:12 PM
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The 114 runs at 10.5/1 compression which is half a point higher than the 107 and should respond better to cam swaps.
 
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