Correct Shift Point

Adger Smith · 05-03-2010, 10:41 AM

Very good points by everyone & Phillip's...
Start at about 5% over the peak HP. & move up & down till it slows down is a good way. How the engine carries the hp & torque curve above peak can effect how far over you need to carry the RPM. If it drops like a rock after the peak you don't need to go there. If you have a dyno sheet study the curves around the peaks.
Once you find a nice single RPM for both shift points then work to find out if it wants low to second sooner and second to high streched out a little longer.
Some 3 speed combinations will run quicker with different shift points.
I wouldn't worry about what the other owner says. I would find out what it wants by testing. Then there is nothing left on the table orany unanswered questions. Besides... Thats the fun part of this sport! :~)

05-03-2010, 10:41 AM	#8
Adger Smith VIP Member Join Date: Dec 2001 Location: Texarkana Ark/TX Posts: 2,446 Likes: 575 Liked 880 Times in 311 Posts	Re: Correct Shift Point Very good points by everyone & Phillip's... Start at about 5% over the peak HP. & move up & down till it slows down is a good way. How the engine carries the hp & torque curve above peak can effect how far over you need to carry the RPM. If it drops like a rock after the peak you don't need to go there. If you have a dyno sheet study the curves around the peaks. Once you find a nice single RPM for both shift points then work to find out if it wants low to second sooner and second to high streched out a little longer. Some 3 speed combinations will run quicker with different shift points. I wouldn't worry about what the other owner says. I would find out what it wants by testing. Then there is nothing left on the table orany unanswered questions. Besides... Thats the fun part of this sport! :~) __________________ Adger Smith (Former SS)