Originally Posted by Brad_Haak
As in 3.75" stroke combos, not 4.15" +

My old build made peak HP at 6300-6400, I shifted at 6500 and went through the traps at 6800+

New combination makes peak HP at 6800 and I expect will go through the traps at 7000+... won't know where it'll want to be shifted until it sees the track again

Thx

My guess is it will like 6800 shift points, because actual shift point (data logged) is most likely a couple hundred rpm higher than when you shift. So start at 6600 Imho and go up in steps, after getting a base line that is solid info to work from.


8..603 156 mph best, 2905 lbs 549, indy 572-13, alky