Evo vs Twin Cam power ? - Harley Davidson Forums: Harley Davidson Motorcycle Forum

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post #1 of 14 (permalink) Old 02-03-2013, 09:39 PM Thread Starter
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Evo vs Twin Cam power ?

How does the stock EVO motor compare with the stocker 2013 Twin Cam motor in respects to horse power and torque?

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post #2 of 14 (permalink) Old 02-04-2013, 05:41 AM
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Evo vs Twin Cam power ?

It really depends upon what spark plug wires you run......


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post #3 of 14 (permalink) Old 02-04-2013, 06:04 AM
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The 2013 TC engine is 15-20 plus HP/torque over the Evo, stock, and responds just as well if not better with mods to gain higher HPs and torque. It's also a much larger displacement. (80 vs 96, 103, 110)

Cases is stronger, especially regarding cylinder studs and in the casting where the inner cam bearings sit, where the Evo cracks. Less rockerbox leaks in the TC due to better designed rockerbox, with less parts, vs Evo.

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post #4 of 14 (permalink) Old 02-04-2013, 06:19 AM Thread Starter
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Quote:
Originally Posted by Dave63 View Post
The 2013 TC engine is 15-20 plus HP/torque over the Evo, stock, and responds just as well if not better with mods to gain higher HPs and torque. It's also a much larger displacement. (80 vs 96, 103, 110)

Cases is stronger, especially regarding cylinder studs and in the casting where the inner cam bearings sit, where the Evo cracks. Less rockerbox leaks in the TC due to better designed rockerbox, with less parts, vs Evo.
I was looking for the numbers that could be found on dyno sheets for the EVO and TC motors.

I'm surprised that there is not more of a difference in the numbers (what ever they are) since the TC has nearly 30 cubic inches more displacement and 20+ years of development.

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post #5 of 14 (permalink) Old 02-04-2013, 07:02 AM
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as far as build motors,the EVO`s are easier to get more power at the same CID (88 evo to 88 TC,96 evo to 96 TC,ect)

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post #6 of 14 (permalink) Old 02-04-2013, 10:01 AM
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That is interesting. I thought there would be a huge difference. All I know is, I love my Evo motor.


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post #7 of 14 (permalink) Old 02-04-2013, 02:51 PM
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That is interesting. I thought there would be a huge difference. All I know is, I love my Evo motor.


-Rohan
so do I,127" 142/148

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post #8 of 14 (permalink) Old 02-04-2013, 02:58 PM
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Also the Blockheads are prettier than the Fatheads & the Shovelheads are almost as pretty as the Knuckleheads , but those Panheads are the nuts !

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post #9 of 14 (permalink) Old 02-04-2013, 03:42 PM
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We spooled off a totally bone stock Evo years ago.
44 hp, and 55 ft/lbs.
But, it is very straightforward to have those at 90/90 plus.
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post #10 of 14 (permalink) Old 02-04-2013, 04:31 PM
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What mods would you suggest to get to 90/90 or something in that range?
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