Optimum RPM for shift points?
08-17-2007, 09:12 PM
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Optimum RPM for shift points?
Well I finally got done with my tranny rebulid and it is 100 times better than stock! Now I get to do the fine tuning. I was wondering if there were any opinions about what the best shift points would be. I haven't done a WOT run yet, but have got on it pretty good while going from the on ramp to the interstate. All gears shifted around 1850-1900 Rpm's. I was thinking of adjusting to something closer to 2100 RPM's to take advantage of the torque curve. Any thoughts out there?
08-17-2007, 10:02 PM
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This is probably not what you're looking for, but on my 6speed, I shift any where from 1100 to about 1600, depending on traffic and road conditions.
With a load, I shift at about 2500 or higher to keep the EGT's down. High RPM makes a huge difference on EGTs.
With a load, I shift at about 2500 or higher to keep the EGT's down. High RPM makes a huge difference on EGTs.
08-19-2007, 07:27 PM
#4
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That seems kinda low - even if you're not triple stacking that aftermarket fueling, you've got enough #2 for 3500 RPM - so I'd shift a lot higher than 2100!
Got any dyno #s for your rig?
Got any dyno #s for your rig?
08-19-2007, 10:10 PM
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XLR8R, I never thought about going that high. Guess I have ALOT of play room on this one. Unfortuntly I have no dyno numbers yet. I was going to do it at my folks shop, but the dyno setup has not come in yet. I'll have to wait till I get back to NM and go up to Albq. Also I want to wait till I get my GDP 392 ordred and installed. Just alittle piece of mind that I don't starve anything.
One thing I was wondering though. How does(if any)the Edge, Race, and Predator affect my shift points? Should I run and tune it stock then let the program(s) take over? Or should I find a base baseline program I like and do the mechanical adjustment from there?
One thing I was wondering though. How does(if any)the Edge, Race, and Predator affect my shift points? Should I run and tune it stock then let the program(s) take over? Or should I find a base baseline program I like and do the mechanical adjustment from there?
08-20-2007, 08:04 AM
#6
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What mechanical adjustment?
The stock fuel map defuels by 3200 RPM, so it functions as a rev limiter; aftermarket fueling often fuels harder & higher.
I know the Race alone would fuel to 3500 on the dyno.
The stock fuel map defuels by 3200 RPM, so it functions as a rev limiter; aftermarket fueling often fuels harder & higher.
I know the Race alone would fuel to 3500 on the dyno.
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