Haven't read the thread, but I make between 480 - 500rwhp, and weigh just over 3100lbs.
One night I raced a Civic Hatch making about 360 - 370rwhp, and only weighed around 2000lbs.....couldn't pull him at all.
I also raced a GT 500 Mustang that was making just over 680rwhp, but also weighing right at 4000lbs, and was pretty much even with him until 120 - 130mph or so, where I started creeping away from him.
Power:Weight is probably the biggest factor that comes into play when going from a roll, but it's not the gospel. But you're typically going to need about 12rwhp ON AVERAGE to make up for every 100lbs of weight.
