Cold weather performance

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Oct 19, 2009 | 09:39 AM

skidder

Thread Starter

Seasoned HDF Member

Joined: Sep 2008

Posts: 12,566

Likes: 85

From: Calgary

Cold weather performance

Took my Fatbob for a ride Saturday. Temperature was about 50 degrees. As I was riding along it occured to me the bike was running crisper and the exhaust tone was louder, more bark to it. I have a stage 1 and V&H 2 into 1 pipes and was wondering do any of you notice the same thing in cooler weather.

Oct 19, 2009 | 10:15 AM

thedonthere

Outstanding HDF Member

Joined: Dec 2008

Posts: 2,419

Likes: 1

From: Ashland Ore.

internal combustion engines lose HP when they get hot. The cooler the weather the better they run.

Oct 19, 2009 | 10:31 AM

fjm3rd

Tourer

Joined: Jan 2009

Posts: 256

Likes: 0

From: Lehigh Valley, PA

Yea same thing here Louder and more crisper throttle 40 degrees here at night I love this kind of weather

Oct 19, 2009 | 10:35 AM

Cornhusker

Outstanding HDF Member

Joined: Dec 2006

Posts: 2,027

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From: Eastern NE

50° is still good riding weather here. I notice no difference. The engine still easily reaches Operating Temperature.

Oct 19, 2009 | 10:44 AM

red devil

Outstanding HDF Member

Joined: Sep 2008

Posts: 2,408

Likes: 1

From: pottsville,pa

Your bike will run that much better with the air temps in the 50's compared to temps in the 80's! Your pulling in that much more cooler denser air which equals more power! I usually put the same amount of miles on the bike in the fall/winter as I do the summer for this very reason.

Oct 19, 2009 | 11:20 AM

Mike Horrell

Road Master

Joined: Mar 2009

Posts: 1,232

Likes: 4

From: Albuquerque, New Mexico

Yep, denser air means more power..

Since neither my 09 SG or the 09 1200C I traded in on it have ever been BELOW
5500-6000 feet above sea level and are often ridden in the 9,000-12,000 foot range,
I doubt I have ever seen the performance levels most of you guys have but the
bikes still seemed fine to me.

Oct 19, 2009 | 11:45 AM

AdrianVall

Elite HDF Member

Joined: Oct 2007

Posts: 4,968

Likes: 34

From: West Palm Beach, Florida

Oh yeah! I definitely notice the same thing. Temps dropped here for a couple days and my bike has never ran better! Very crisp throttle response, the pipes bark ever so clearly, and the bike pulls much harder! I LOVE it!

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Oct 19, 2009 | 01:06 PM

2007fxdc

Elite HDF Member

Joined: Aug 2007

Posts: 4,722

Likes: 7

I notice such a thing in all my vehicles. Definitely the denser air making the difference. Why do you think "cold air intakes" are so popular in performance vehicles.