What type batteries are you guys using to power your fuel pump/ ECU? I have a JJ1800 that can only reach 105,000 rpms. I'm almost certain that it is the battery. I'm using an 8.4V 3000ma NiCad battery that is brand new. While the engine is running , full throttle voltage indicates 6.5V on the HDT. What are some of the readings you guys are getting while your engines(1800) are running. I have the Regal ECU and Flightworks fuel pump.
Thanks,
Steve