ithink ait wont stall more than 2400 in your rx7.the lite vehicle weight and torque range /rpm range of this turbo will severely reduce the k factor /stall speed of this convertor .i personally have not seen over 2500 rpm with this piece even at hi boost unless used in conjunction with our 2004r pro trans brake and at this stage reliability is severely compromised .however,i have seen 3000 plus stall with a d5 with crankshafts that have a 3.75 inch or longer stroke .not the case with our 3.8 .this by the way is footbraking it. ps they NEVER lasted that long anyhow .i would suggest a 10 inch from pro torque.love your combo though. id like to see a picture .e mail it to me and check out my site at ckperformance.com