hot frame
Senior Member
1st Gear Member
Joined: Mar 2006
Posts: 4,242
From: Keller (DFW), Texas
1st Gear Member
RE: hot frame
What do you mean by trigger temp? NS, you're sick.
[/quote]
By trigger temp, I mean at what temperature does the thermostat open up to let coolant into the engine? I know that my car's trigger temp was originally 215 degrees, which was done by the factory to help lower emissions. A common performance mod was to replace it with a 180 degree thermostat. The cooler engine ran better and had a longer overall engine life.
What I would like to know is if the same theory can be applied to my '06 636, allowing it to run cooler in traffic, and possibly improving performance. Thanks.
[/quote]
It's kind of a give & take when running the cooler thermostat. On the Iron head cars it's an advantage but on the Aluminum heads like our bikes it becomes a disadvantage. You have to keep the combustion chamber hotter for a good burn because Aluminum dissipates heat much better than Iron heads. However, there is a power advantage of getting a cooler intake charge. I don't know what temperature the thermostat opens at but will find out. Most newer cars are 195 degrees F. My bike runs on the average of about 180- 190 on cold days, so it's probably a 185 or ?.
[/quote]
By trigger temp, I mean at what temperature does the thermostat open up to let coolant into the engine? I know that my car's trigger temp was originally 215 degrees, which was done by the factory to help lower emissions. A common performance mod was to replace it with a 180 degree thermostat. The cooler engine ran better and had a longer overall engine life.
What I would like to know is if the same theory can be applied to my '06 636, allowing it to run cooler in traffic, and possibly improving performance. Thanks.
[/quote]
It's kind of a give & take when running the cooler thermostat. On the Iron head cars it's an advantage but on the Aluminum heads like our bikes it becomes a disadvantage. You have to keep the combustion chamber hotter for a good burn because Aluminum dissipates heat much better than Iron heads. However, there is a power advantage of getting a cooler intake charge. I don't know what temperature the thermostat opens at but will find out. Most newer cars are 195 degrees F. My bike runs on the average of about 180- 190 on cold days, so it's probably a 185 or ?.
Senior Member
1st Gear Member
Joined: Jun 2006
Posts: 5,762
From:
RE: hot frame
Speedracer is absolutely right on the aluminum/iron head temps. There isn't much of a need to buy a lower temp thermostat unless you did some heavy mods to your engine. Keep your temp within the manufacturers specs. Your engine parts were meant to run most efficiently from thermal expansion at a certain temp range. For instance, if your engine always runs cool from an aftermarket T-stat, the pistons and rings may not expand enough to properly seal against the cylinder walls, raising oil consumption and blow-by.
Knee Dragging Pimp
1st Gear Member
Joined: Jan 2006
Posts: 11,885
From: mufukin Long Beach.
RE: hot frame
ORIGINAL: gsims
Lemme know when that LA ride goes down.
DAMN, that IS a hot frame!!!
Lemme know when that LA ride goes down.
DAMN, that IS a hot frame!!!
you got it man.
ns, i can totally do that, i just dont want to get in trouble.
