Aeromotive Stealth 340 in-tank pump
I just installed the aeromotive 11569 in-tank pump in my truck. It does work with the FiTech PWM, altho I am not running the pump anywhere near capacity. I would think if you are getting close to the 15 amp limit for the built in relay, run the PWM at 100% and use it to trigger an external relay. According to the instructions this pump will pull up to 20 amps if being worked hard.
I run the same pumps in both my builds. Been good pumps and run them in the 50 to 60% range on PWM.
Mine is at 60% now, but thinking about turning it a little. My little motor doesn't even come close to using all that pump up.
To properly tune PWM, you need a fuel pressure gauge. At idle turn the pump down until pressure drops below 58, then increase 5 to 10 points.
I've got the aeromotive 1 1/2" fp gauge that I was going to install in the front fuel rail, but my air cleaner doesn't clear it, so I have to order an inline adapter.
I also noticed that I needed to turn down the med PWM and high PWM as the pump moves way too much fuel (a good problem to have!)....
I run this Aeromotive pump and it pops out exhaust at idle. seems to run out of fuel when i drop hammer. 40 lbs at idle, pwm at 74
mean street 800
Ok, those run 43psi. I would need to see a datalog. Post a 30 second idle datalog at operating temperature. You can post a Dropbox or Cloud link here.
wow. thanks so much. i have been fighting this for a year with fitech. i will try to get that up here tomorrow.