Thermostat

[jhillam]

Heavy wet January thaw brought out the heat in the axys and what I hoped was an infallible cooling system. Has anyone ran one with thermostat out? What map adjustments are made at 80-100 degree temps vs the 120-160 degree temps typical with the thermostat in?

 

[Prayn4snow]

Were running two new Axys RMK 155" 2.6's. One is stock and gets hot and needs the scratchers down whenever were run down even a short trail to get to the next hill. The 2nd sled I have a BMP billet head, and it seems to run 120 all the time and I haven't put the scratchers down yet. I bought it for the performance gains, however its a bonus that it is running more consistent temps.

 

[jhillam]

Were running two new Axys RMK 155" 2.6's. One is stock and gets hot and needs the scratchers down whenever were run down even a short trail to get to the next hill. The 2nd sled I have a BMP billet head, and it seems to run 120 all the time and I haven't put the scratchers down yet. I bought it for the performance gains, however its a bonus that it is running more consistent temps.

I am sorry but I believe lower coolant temps with an aftermarket head is a bad thing. Lower coolant temp from a different head of equal compression means the water flow design is not transferring as much heat from the engine.