How much is it putting down? According to Harrop:
Dynapack axle data without powertrain correction
- 3000rpm: 460Nm (340ft/lb) v 330Nm std
- 5000rpm: 540Nm (400ft/lb) v 340Nm std
- 7000rpm: 373Kw (500hp) v 255Kw std
- 5.5psi peak boost
BimmerBoost of course has to ask, why was it only run to 7000 rpm on the dyno? What is the power figure at redline? Why was a dyno graph not shown? Clearly these are details that will all come but all questions BimmerBoost members will no doubt be asking.
This a very difficult project to tune for due to the independent throttle bodies but it seems Harrop has developed a solution involved an electronic blow off valve to bleed boost so air is not forced onto the throttle bodies when they are closed.
There is still work to be done but this kit is coming along nicely and will be quite different in its power delivery to anything else currently on the market.