Along the same line of questions but a bit different. In the above comments, all responses are for which method do you use to indicate shift points.
My question is at what RPM do you select your shift points. My car is a RB 512 with about 550 hp for example. I have a 727 with Transgo2 shift kit, quicksilver shifter, 3.91 ratio 8 3/4 rear end and a gear vendors overdrive. The torque converter stalls at 3500 rpm according to the dyno guy. (I know a bit low but it is what I have for now.) I have not raced it since I put in the overdrive and only had 425 hp at the time. I am an inexperienced racer and my sons will probably do most of the runs. They are also not experienced racers at the drag strip but race a challenger on road course. If I have a dyno for HP and Torque curves, at what rpms do you try to shift. At max torque? 300 before that? at max HP? etc.. ... We only have the Holley Super Sniper EFI programmed to 6500 rpms but that could change if needed. I don't think we would even need to use the gearvendors OD but I am no expert.
I have a tach with a light and I want to set the light to shift correctly. I may have to have the light come on a couple hundred RPM before the shift point and I can run a datalog on the sniper to see exactly what rpm we reached before shifting. Knowing the data for the shifts helps but knowing what shift point is correct for my car is more important. How do you determine what is best????
Thanks for any help.
If I should start a new thread let me know. I do not intend to hijack this one.
