I never mentioned to engage vtec at 5250. You engage it at the torque curve crossovers from low cam and high cam.
Tune low cam to it’s fullest extend with vtec disengaged and then the same with vtec engaged very low. Overlay the two dyno plots and vtec is wherever the torque curves of the two cross over. That is gonig to be optimum engagement point, any lower and you will be cutting your low cam torque off too early and comnig into the vtec torque curve too low(resulting in a slight power dip, hp and tq) Any higher and you’ll be falling out of the low cam torque curve when you could have engaged it earlier at the correct spot to have a smooth torque curve.
nice work on the OBD1 covnersion :rockon: Are you aiming for any particular goal, track wise?
becuase i wanted to know what my car made at that moment, in current weather conditions, not in perfect air conditions. I dont like using it becuase its not a TRUE, at the momemt number.
today was a very disapointing one. I was getting pretty far with the tuning and a rallting noise gets louder and louder, i get out, find nothing. I resuime doing part throttle tuning and then it gets louder and i can tell something is loose. I cut the car off and look at the turbo manifold, thinking bolts were ratteling loose… WELL come to find out, the acctual housing bolts, that hold the housing to the turbo, were about 4 or 5 turns loose… uhh so i stopped and pushed my car out side, but here are some pics from today and what not-. managed 211 whp…lol :rockon: