Correct Shift Point

Henry S · 05-03-2010, 02:00 PM

I have heard of a theoritical way to determine correct shift point. You would need to know what the rpm's drop on each shift point, and have dyno sheets that go above peak horsepower. If the drop point on the 1-2 shift is 1000rpm then you can take the dyno sheets and average the horspower over a 1000 rpm spread and find the rpm number that gives the most horsepower average. For example:
5600-6600 = 425hp
5700-6700 = 430hp
5800-6800 = 435hp
5900-6900 = 410hp
then 6800 would be the best shift point. does anyone have experience using this method? I have not tried this or verified its results.

05-03-2010, 02:00 PM	#9
Henry S Junior Member Join Date: Aug 2007 Posts: 83 Likes: 11 Liked 19 Times in 7 Posts	Re: Correct Shift Point I have heard of a theoritical way to determine correct shift point. You would need to know what the rpm's drop on each shift point, and have dyno sheets that go above peak horsepower. If the drop point on the 1-2 shift is 1000rpm then you can take the dyno sheets and average the horspower over a 1000 rpm spread and find the rpm number that gives the most horsepower average. For example: 5600-6600 = 425hp 5700-6700 = 430hp 5800-6800 = 435hp 5900-6900 = 410hp then 6800 would be the best shift point. does anyone have experience using this method? I have not tried this or verified its results. Last edited by Henry S; 05-05-2010 at 10:10 AM.