top speed of 96 mph

[teerex]

107mph on radar. snow packed lake. Turbo'd of course and geared. Skies off the the ground all the way.

What was your gearing?

 

[TURBOFX]

23/39 srx gears

 

[teerex]

Does the phazer clutch have overdrive ?

According to this calculator your top speed is actually 107 mph if no overdrive clutch @ 12100 rpm, or @ 10900 rpm with overdrive clutch.

http://www.snowmobileworld.com/tools/index.php

Phazer gear reduction is 1.43 right ?
If overdrive clutch, your top speed is 119 mph @ 12100 rpm, or 113 mph @ 11500 rpm.
My top speed will then be 98.50 mph @ 12100 rpm with my 20/41 gearing.. That's OK with me
Change to 40t sprocket and I should see true 100 mph, if needed.

 

[sniperviper]

The dreamometer on my fx is wrong calibrated. I saw 130km/ and when I switched to mph it showed 90mph on the same distance (topspeed) Its a difference in 14km/h (aprox 9mph). Gps reading was 76mph.

The dreamometer is dreamodreamometer if you have it set to mph. Switch to kmh and the real speed is much closer to reading than if you have it on mph.

Btw, the conditions today could have been better for topspeed measurement and I have the 1,5" freeride track on my sled. I belive that this track reduce the topspeed compared to one with a stock track.

 

[SharkAttak]

i did the speed-o mod, with the grinding of the speed-o teeth on opposite sides and saw 78 m.p.h. flat out and that mod is pretty accurate