Winter is here - performance increase in the cold

[thehollowmen]

Noticed a performance increase?

My little bike runs so much better in the rain and I can keep it idling happily away at 55km/h in fifth (in town). In the dry it can't do that because it will shudder like crazy.

A lot of the performance car boys and girls find they can get more out of the cars on cold days. The air is cooler, denser and contains more of the precious oxygen. A workmate gets 1 bar of boost on his car in the winter but can never do it in summer.

I would have thought the water droplets would catch in the oil on the air filter, causing the filter to clog up a bit.

So, have you noticed a performance increase or decrease in the cold and wet?

[StoneChucker]

No, but it makes sense.
Cold temp = higher pressure air (Better for combustion)

[ZorsT]

In my very limited life, i have definatly noticed an increase in peformance in the cold. Mums car will do 110 normally but last night, i got it up to a whole 130... it was cold, but not wet. The boy racers have trouble in the wet because their bald tyres don't grip nearly as much, funny that

EDIT: maybe the fact mums car is diesel gives a difference that is noticable

[Coyote]

I've noticed a significant increase in performance. The engine is running and I have no brakes

[James Deuce]

Noticed a performance increase?

My little bike runs so much better in the rain and I can keep it idling happily away at 55km/h in fifth (in town). In the dry it can't do that because it will shudder like crazy.

A lot of the performance car boys and girls find they can get more out of the cars on cold days. The air is cooler, denser and contains more of the precious oxygen. A workmate gets 1 bar of boost on his car in the winter but can never do it in summer.

I would have thought the water droplets would catch in the oil on the air filter, causing the filter to clog up a bit.

So, have you noticed a performance increase or decrease in the cold and wet?

In the cold yes the air is denser, but in the wet the air is actually less dense. If your bike is running better in the rain then it may be running a bit rich on the air side of the mixture in the dry.

[thehollowmen]

In the cold yes the air is denser, but in the wet the air is actually less dense. If your bike is running better in the rain then it may be running a bit rich on the air side of the mixture in the dry.

Now there is an interesting thought.
If it runs better like this I might try and tweak everything a lil richer.. since it is so much better.

[riffer]

Yes one of life's little ironies isn't it?

The very time you can't take advantage of an extra 5 hp, nature decides to give it to you...

[Motu]

Bikes run much better in the cold - more noticable on the older bikes with no airbox and the carb out there in rear air.In the good old CNG days you made sure you filled your tank on a cold morning if possible,you got more fuel in the tank.

[HDTboy]

I've found my cars have all run better in the cold weather, have'nt taken any notice of the bike though. The problem is that you get this free power when it's hardest to keep the tryes warm

[thehollowmen]

Yes one of life's little ironies isn't it?

The very time you can't take advantage of an extra 5 hp, nature decides to give it to you...

If I got 5 more horsepower... OMG ...
hold on a minute have to change my pants... that would nearly double the horsepower rating of my bike (j/k)

[Sniper]

Noticed a performance increase?

My little bike runs so much better in the rain and I can keep it idling happily away at 55km/h in fifth (in town). In the dry it can't do that because it will shudder like crazy.

A lot of the performance car boys and girls find they can get more out of the cars on cold days. The air is cooler, denser and contains more of the precious oxygen. A workmate gets 1 bar of boost on his car in the winter but can never do it in summer.

I would have thought the water droplets would catch in the oil on the air filter, causing the filter to clog up a bit.

So, have you noticed a performance increase or decrease in the cold and wet?

Have noticed the back wheel doing what it shouldnt yes

[zadok]

Definite increase in performance.

[Ixion]

Tis why bikes always run nicer at night - other things being equal.

That observation has been around for 40 years to my personal knowledge. Probably a lot longer than that

[Hitcher]

I've noticed the cold air phenomenum more with diesel engines, like tractors and combined harvesters than I have with cars. They always seem to run better and night.

[GNR]

yer, engines will run better in the cold,
watch out for carb ice tho!!, dunno if bikes get that, or what system do they have to prevent it??

also, for anyone who leaves there bike outside, keep the tanks full, and emty tank will get condesation. and water n fuel don't mix like peas and carrots