Just got back from a lake in southern Wis. where I put about 20-25 miles on my sled for the 1st time with the RK Tek head. My sled now has about 150 miles on it. I will tell you what I saw on my first weekend riding it stock and then what I saw today with the head installed.
First weekend rode approx. 125 miles in southwest Michigan south of Grand Rapids. Snow on ground was about 16 inches of lake effect snow (sugar) and the temps were in the mid to low 20''s. Elevation about 800 feet above sea level for all riding. Sled would tach around 7800 wide open on clicker 3 (stock position). After about 100 miles I tried opening it up on a road and it went to 90 mph real quick and then tapered off and started to creep higher. I had to shut down before getting much higher. After that weekend (about 2 weeks ago) I put the sled back in the garage until today.
Today''s run was with new 500 mains installed, the RK Tek head and 96 Woody''s 1.325 studs. Otherwise bone stock. Sled had 130 miles on the odometer when I hit the lake. Temp was between 16 and 20 degrees F. About 2 inches of slightly packed snow on the ice which packed down to about 1/2 inch. I warmed up the sled and then hit it a couple of times for about 1/8 mile and then checked the plugs. Perfect cocoa brown color. Then I ran her for about 1/4 mile and out of the hole it would hit 8000 and then drop to 7800 or so and then climb rather quickly back up to 8000 and then creeped to almost 8100 rpms on top. Sled did 105 in about 2000 feet. I dropped clickers to 2 from the stock no. 3 setting and the rpms would drop to 7600 and then climb to 7800 and slowly creep to almost 7900 but not quite. This time I taped it for 1/2 mile and saw 108 mph on the speedo. Sidenote - When I got off the packed snow and into the loose snow the tach would hang around 7600.
This info is for you to decide. How much did the head do? How much did the 500 mains do? How much did the lake do in comparison to the trail and road riding in Michigan? My sled now has 150 miles. The chip is not burned in yet so my timing is still retarded and the motor is still tight. I am not adding any weight to the clutch at this time and I have gone down one clicker from stock but in my opinion it is just pulling that clicker position. I have a new Dynoport pipe and can to install next after is comes back from Jet Hot Coatings. I will post what I see with the pipe installed when I get it.
First weekend rode approx. 125 miles in southwest Michigan south of Grand Rapids. Snow on ground was about 16 inches of lake effect snow (sugar) and the temps were in the mid to low 20''s. Elevation about 800 feet above sea level for all riding. Sled would tach around 7800 wide open on clicker 3 (stock position). After about 100 miles I tried opening it up on a road and it went to 90 mph real quick and then tapered off and started to creep higher. I had to shut down before getting much higher. After that weekend (about 2 weeks ago) I put the sled back in the garage until today.
Today''s run was with new 500 mains installed, the RK Tek head and 96 Woody''s 1.325 studs. Otherwise bone stock. Sled had 130 miles on the odometer when I hit the lake. Temp was between 16 and 20 degrees F. About 2 inches of slightly packed snow on the ice which packed down to about 1/2 inch. I warmed up the sled and then hit it a couple of times for about 1/8 mile and then checked the plugs. Perfect cocoa brown color. Then I ran her for about 1/4 mile and out of the hole it would hit 8000 and then drop to 7800 or so and then climb rather quickly back up to 8000 and then creeped to almost 8100 rpms on top. Sled did 105 in about 2000 feet. I dropped clickers to 2 from the stock no. 3 setting and the rpms would drop to 7600 and then climb to 7800 and slowly creep to almost 7900 but not quite. This time I taped it for 1/2 mile and saw 108 mph on the speedo. Sidenote - When I got off the packed snow and into the loose snow the tach would hang around 7600.
This info is for you to decide. How much did the head do? How much did the 500 mains do? How much did the lake do in comparison to the trail and road riding in Michigan? My sled now has 150 miles. The chip is not burned in yet so my timing is still retarded and the motor is still tight. I am not adding any weight to the clutch at this time and I have gone down one clicker from stock but in my opinion it is just pulling that clicker position. I have a new Dynoport pipe and can to install next after is comes back from Jet Hot Coatings. I will post what I see with the pipe installed when I get it.
