EVO All Evo Model Discussion

Evo is quiet?

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Old Aug 15, 2022 | 12:03 PM
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Default Evo is quiet?

I have a 97 evo with a big sucker intake and samson fishtails with no baffles, stock motor. It is a lot quieter than my 2001 road king that has a built motor and straight fishtails.

I assume cam, heads, pistons would be what would make a difference on the evo? I had planned a cam upgrade.

Thanks guys
 
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Old Aug 16, 2022 | 06:28 AM
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I am hoping you get some good answers. I picked up a 89 touring bike, all stock, and it is the quietest bike I have ever owned...
 
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Old Aug 16, 2022 | 08:03 AM
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In my opinion the Evo is the nicest sounding engine but I like a smooth quieter sound.

The Shovel is just the coolest. Twin Cam whirs around making me wonder if that's right.

If you want a loud badass sound from an Evo you can go with some shitty drag pipes or Rineharts.
 
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Old Aug 16, 2022 | 07:24 PM
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I have V&H long shots on my 94. Not quiet at all. Its compression that makes the noise. Stock FLH evo was lame. but that CR up to 10.5 to 1 and its a totally different sound / bike.
 
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Old Aug 16, 2022 | 08:41 PM
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Thanks guys. I'm thinking when I do the cam upgrade, maybe do the higher compression wiseco pistons then as well.
 
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Old Aug 17, 2022 | 08:41 AM
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Engine size plays into things too...the evo is 1340/80 inches....and the newer High Compression ones are 1500 and up....more fuel, more air....bigger bang! But pipe choice and tuning of the mufflers does help develop a particular sound.
 
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Old Aug 17, 2022 | 08:01 PM
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Thanks.

If I get wiseco pistons, and leave my heads stock, is that just a regular bolt on install, no machining etc?
 
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Old Aug 17, 2022 | 08:05 PM
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Originally Posted by bulldog1776
Thanks.

If I get wiseco pistons, and leave my heads stock, is that just a regular bolt on install, no machining etc?
if they are comparable to stock, yes just put them in. If they are for higher compression ratio or different stroke then of course you need the mods that enable that fitment.
 
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Old Aug 17, 2022 | 08:42 PM
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Definitely worth getting the cylinders honed to ensure a good seal for the rings. Torque plate hone is better. Simulates head bolt distortion of the jug. Usually no more than $150 for the work but your in for a gasket set as well. All very worth it imo.
 
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Old Aug 18, 2022 | 11:09 AM
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Originally Posted by jonnycando
if they are comparable to stock, yes just put them in. If they are for higher compression ratio or different stroke then of course you need the mods that enable that fitment.
Ok, so for example if I get the 10:1 wiseco pistons, some machining work has to be done as well?

Thanks
 
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