The Colder It Gets The Faster It Goes?

BAM

Member
Local time
2:41 AM
Joined
May 26, 2009
Messages
70
Location
omer mich
:cool:do 2cyles like cold air mine sure does last couple of rides in the 50s my bike is just flying along top speed normaly 27 28 now with cold weather iam at 30 31 iam waiting for something to come flying out its a 69cc stock 44tooth 1000miles give or take a few just wanted to know if anyone else had same experance
 
:cool:do 2cyles like cold air mine sure does last couple of rides in the 50s my bike is just flying along top speed normaly 27 28 now with cold weather iam at 30 31 iam waiting for something to come flying out its a 69cc stock 44tooth 1000miles give or take a few just wanted to know if anyone else had same experance

Any engine should act the same....colder air is denser....kind of like putting a small turbocharger on the engine. It probably helps if your engine is slightly rich to begin with. Sadly, in my case, I will probably never know....can't get the friggin thing started below about 20. :cry:
 
I knew somthing was up cold air good for bike not so good for me gloves hat scarf carharts
 
yes that's right. any time you can lower the temp of the intake charge (fuel / air) you will make more power. cold air is denser than warm air, so in effect you are getting more air into the engine. This is why you need to choke the carb. on cold start up. by choking it, you are reducing the amount of air that is getting sucked into the engine so it will start. once the engine is warmed up, it will suck in the cold air and make more power. This is why they invented ram air and cowl induction on muscle cars. these hoods and intake systems only suck outside air into the carb. which is colder than the air that's under the hood. even if it's 80 degrees outside, the 80 degree outside air is colder than the 300 + degree air that's under the hood. every engine will make more power when it gets cold air sucked into it.
Nitrous oxide will actually freeze because it gets so cold. when you inject nitrous oxide into an engine, you drastically reduce the temp of the intake charge. (plus the nitrous helps the gas burn a lot faster).
on drag cars, we used to run what is called a "cool can". a cool can is escentially an insulated can, with metal fuel line tightly coiled up inside of it. you would fill the can with dry ice, and the fuel would run through it, cooling it down which made more power.
any time you add cold fuel or air to a warm engine...you will make more power.
 
From my time running extremely sensitive nitro r/c engines, I've learned that cold air leans out the mixture. Many motorbikes [including mine] run rich, so any small amount of leaning helps a good bit.
 
Every 2 stroke I have had, loves the cold. Sound, runs, faster better. Was surprised to find when I bought a Honda that she prefers the hot.
 
Air cooled engines like cool air. COOOOOOOLLLLLDDDDDD DD D D DD air is another story.

Have you guys tried fuel additives like IsoHeet or Lucas Gas Treatment?

Yeah, fall is the best time to ride. Our "fall" runs into december, then we get winter into March. hahaha.

with a motor bike now I can ride all year. I hate riding in winter for my lungs burning and getting hot and cold. Now I can just be cold hahahhaa. And the vibration tickles my legs.
 
re: carharts

Are you talking about the duck-hunting overalls made of heavy canvass with insulated linings? I love those! Since you don't have to pedal much, it wouldn't bind you up to cause any worry.

I knew somthing was up cold air good for bike not so good for me gloves hat scarf carharts
 
Back
Top