[ree]

What I took from that thread was that TCS doesn't directly limit the engine. Rather as it's pulsing your brakes it's eating into any momentum you have built up in forward motion and wheel spin. As you slow down, the drive train has to exert more effort to maintain your speed, hench the bogging down of the engine. I'm speculating that this is what Phil means by "controls throttle response," ... i.e. indirectly through the drive train and not via the computer.

If this is right, then if you are not slowing down because you aren't getting more and more stuck and the TCS doesn't thin kthat wheels are still spinning when they shouldng, there'd be no reason you can't redline the engine.