The Evo is back - long live the Evo!
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Club Member
Joined: Jun 2007
Posts: 45,429
Likes: 2,898
From: Bedford UK
The Evo is back - long live the Evo!
Harley has just announced their 'new' single cam engine for touring models, with the added bonus of 4-valves per cylinder. Deep joy - we were right all along - single cams rule! 
It is a curious thing, why they went back to a single cam. Hard to understand that one.
Oh well.
IMHO, the Evo remains the last authentic HD engine. Everything since is an EPA mandated hack trying to simulate what an HD engine is supposed to be.
Oh well.
IMHO, the Evo remains the last authentic HD engine. Everything since is an EPA mandated hack trying to simulate what an HD engine is supposed to be.
Seasoned HDF Member
Joined: Jul 2014
Posts: 8,603
Likes: 3,374
From: Cental, MI
^^ The EPA had it's fingers in the EVO as well...
Hell.... they are who Ruined the Shovel...Doomed because it couldn't pass EPA "standards"
4 valve heads May improve efficiency to the point that the poor thing won't take a performance "Hit"..
Hell.... they are who Ruined the Shovel...Doomed because it couldn't pass EPA "standards"
4 valve heads May improve efficiency to the point that the poor thing won't take a performance "Hit"..
Seasoned HDF Member
Joined: Aug 2011
Posts: 11,814
Likes: 5,120
From: SW Ohio
Up next; HD bell bottoms
Club Member
Joined: Aug 2008
Posts: 22,861
Likes: 17,917
From: Lafayette, Louisiana
The new engine idles at 850 rpm. Peak torque occurs at a lower rpm than it does with a twin cam. In other words, it is looking like the Milwaukee 8 is more of the successor to the Evo than the TC was.
Stock normal Milwaukee 8 is 107". They sell a bolt on kit for $1,995 that increases displacement to 114" and provides a 39% increase in power over stock while remaining 50 state legal and EPA compliant. It increases compression to 11:1 whooohoooo
Winner winner chicken dinner!
Stock normal Milwaukee 8 is 107". They sell a bolt on kit for $1,995 that increases displacement to 114" and provides a 39% increase in power over stock while remaining 50 state legal and EPA compliant. It increases compression to 11:1 whooohoooo
Winner winner chicken dinner!
Seasoned HDF Member
Joined: Jul 2014
Posts: 8,603
Likes: 3,374
From: Cental, MI
2k for 7 Cubes????
I would take my chances...Done it before...
Think about it... Who knows what the limits of an 883 are???
Not many...But some do.
I would take my chances...Done it before...
Think about it... Who knows what the limits of an 883 are???
Not many...But some do.
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Club Member
Joined: Aug 2008
Posts: 22,861
Likes: 17,917
From: Lafayette, Louisiana
On any other engine, how much money would it take to reliably increase power by 39%, let alone being able to do it while remaining 50 state EPA compliant.
No case boring required either. Just a bolt on kit.
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