Originally Posted by
concordcobra
Yes sir. Just because the powerloss was tremendous with the stock turbo after 5500. So i hit 5th and gained a few more MPH...I do it with my evo too. and my evo's a 5 speed
Think of it this way, Your going thru the traps at 6900 rpms or so with an 07 STI with his mods. Now, at that RPM, your probably boosting 15psi? and making 250whp or so?
Shift to 5th at 6K, and your at full boost (21 psi with spike) and making your most WHP crossing at 6200 or more RPMS....
If you can shift fast enough, then your golden.
Your shifting is not necessarily going to work for him......Unlike most tunes his cars holds power all the way to redline. You should decide oyur shifting points by using the dyno plot. If you are making 300 whp from 4500-7k then you should take that bitch to redline or at least high enough up so that when you shift you are always at your peak power.