CVO Technical > Twin Cam

110 specs

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Kowboy:
A quick question here:
Is the stock CVO 110 considered stage one (50m throttle body, SE exhaust) or not??

HD Street Performance:
It is a large bore 103 with different, larger, heads and a fast lift rate short cam.

Smoketown:
Welcome from PA!

Well, they are supposed to be and then some ...

'Technically', using the simplest formula below. The 110 SE is a 'Stage 3' version of the 103 motor from the factory.

They are about a good as you can get 'stock' from the dealer (without going to a 'crate engine').

The CVO air cleaner is better than the stock one. (Wild claims are made for many aftermarket ones too!)

Add a complete exhaust system, not just slip-ons and a tuner and you will have gone about as far as you can for a Stage 1 (or factory Stage 3 with-out splitting the cases).


Stolen from 'The Herd'

Harley-Davidson Stage 1, 2, 3 & 4 Upgrade

02-10-2011, 11:02 AM

Stage 1

Free breathing air cleaner
Free breathing exhaust
Rejetted carburetor or remapped EFI
(If required) Upgraded ignition


Stage 2

Typically done after a Stage 1 which is the basis for the next modification

Cam upgrade


Stage 3

Upgrading heads
Big bore cylinders
Stroker kits


Stage 4

Turbos
Blowers
Nitrous
Billet motors

I also added a Google search.

https://www.google.com/search?q=harley-davidson+stage+1-2-3-4+explained&rlz=1C1JZAP_enUS842US842&oq=harley+stage+1%2C2+3%2C&aqs=chrome.1.69i57j35i39j0l6.10643j0j7&sourceid=chrome&ie=UTF-8

There are a lot of very knowledgable folk on this forum ...

Be patient, I'm sure there will be better answers coming!

Cheers,
Smoketown

PS
We like pictures!!

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