Recap: LS1, 212/218 114LSA cam, 11:1 compression, headers, truck intake and stock throttle body.
Went from return style system to returnless.
New fuel cell, 255lph fuel pump, new 6an lines, Vette filter, return less rails and 36# flex fuel inj. Started it up and fired right up. Idled fine.
Went for a drive to put more gas in it and everytime I came to a stop it surged and died. Fan came on and it would surge worse. Got gas ,Put it in gear and surge was so bad it would die. Luckily I had the lap top with me and was able too add fuel and somewhat slow the surge.
Got home and put my VE table back stock and added a little timing at idle. Surge almost went away for in gear and still had a tiny surge idle in park but had alot of surge when fan comes on. Smells rich
I started logging idle. It was pulling a lot of fuel at idle. I tried pulling fuel with RTT and it would make the surge come back. So I dropped my idle timing and found a happy medium with fuel and timing at idle and in gear for no surge. It's still pulling -1.8 on the stit and the surge comes back violently everytime the fan kicks on. Also still smells a bit rich.
Every time it is surging and the voltage oscillates I can hear the fuel pump surging along with it.
I'm wondering if it's this cheap fuel pump I was recommended?