Originally Posted by
Cameron Kellogg
I run zero speedo timing and another -5 on the motor. I would start with with motor timing as low as you can go with first. I was running a 14/93 for best performance. With a 16/93 the tires would lite up so bad that it would get loose on the straight! I do have a fan that blows on the motor also and helps keep the temps in the correct range.
Cool, thank you Cameron for the set up! The reason I went with the 550 motor was that I couldn't get a tuning rotor for my 5.5 for that extra torque (at the time). I think they should be available now for the D3 540 motors, I just haven't looked since the 4.5 550 has been really good to me. I'm running a heat sink on mine, but I should get a fan as well...starting to remind me of the touring car days! Thanks again!