Clutch tuning causes burning oil?

[SUPERTUNER]

Freddie, don't have that information in front of me right now. Air temp was 75*F, baro reading of 29.1 if that helps anything? Water temp in the engine was 180*F also.

75 degrees is a 1.01 CF. 29.12 inches of mercury is 1.0 CF, meaning the barometer would have not influenced the power up or down. If the humidity, was low this means that you would have about a 1.01 correction factor. This means that the engine actually made 140.0 HP and corrected to 141.5 at 10,000 RPM's.

The water temp in the engine was good. They always make more power on the second pull due to thermal efficiency.

See how peak torque is some 3000 RPM's behind peak power. This is where 2 stroke tuners are forgetting about clutching these sleds as 2 stroke engines make peak torque and peak power at about the same RPM or peak torque 100 to 200 RPM's behind peak power. This is why "driving through the clutch" is more apparent with the 4 stroke engines due to the fact that the torque climbs in quicker than a 2 stroke to whatever peak it makes. I could measure how much time it takes an engine to reach peak torque and/or peak HP on my dyno. The 4 strokes make peak torque a lot quicker than a 2 stroke of the same power level. This is because the 4 stroke makes it 300 RPM's lower than peak power.

Cool stuff Allen!

Freddie

 

[Srxspec]

Freddie, still interested in testing out those billet pieces yet also, just don't have any snow to cause much of a concern right now I'll keep in touch!

Allen