motor goes flat at 4500 under heavy load any feed back 87turbo 2 street port 800 and 1600 injecters aerotech fuel pump

 

Make sure that if your staged injectors skip setting is 0 that you use a maximum of 50% duty on the setup for the secondries. This is because if the skip is set to 0 it fires on every event(rotor1 and 2 TDC?) which is double firing. If your skip is set to 1 it only fires once per revolution. If you go above 50% with skip set to 0 when your pulse width hits about 5.6 ms and you will miss a fuel pulse. This usually happens about 4500 rpm for me. With skip set to 1 you can stage up to 100%

Regards
Michael Smith