I've got everything wired, got the proper spots changed w/ a hex editor, and now I'm ready to set up Vtec in turboedit. My question is, what should I set the TPS XOver % to? 50 seems to low but 80 is too high. just give me some recommendations.

Also, If I have vtec set to enable at 4200 (roughly 200 RPM mechanical relay delay time I assume) how much fuel should I add in to my current map just to start me so I'm not lean before I fine tune? Is 20% too much or too little?

 

20% should be ok...might be a touch rich. It varies really based on load so fine tuning will be a must.

As far as the TPS crossover, set it to what feels best. I havent done a lot of these but check out where your normal cruising registers while datalogging, you dont want to just lightly step on the throttle and be going into VTEC so above 40% would be my uninformed recommendation.

 

Thank you.