I converted my car recently to an electric fuel pump (Facet Cube 7-10PSI) that I got cheap from "some guy" that used it for his webers on a Golf (Rabbit). Well ever since I mounted the pump i had problems. The car would overheat slightly especially when the weather was hot. I used the original fuel regulator that came with the car. I swapped the old regulator then for a slightly more modern one (https://www.merlinmotorsport.co.uk/p...r-8mm-pf-reg-5
It ran fine at first but eventually my car started stalling or only running well at very high RPM. You guessed it: the carbs were floated. I tried turning down the regulator but it didn't help. I eventually got home thanks to the lambda probe which would let me turn on the pump when the carbs were leaning out ... not really a fun drive, but I was happy i fitted the probe.
I ultimately looked at my cube and stupid me finally realized that I bought the strongest version that pushed the said 7-10 PSI or Way too much
Long story short:
I know i need a "smaller" pump - and I get to chose between 1,5-4 PSI and 3-4,5 PSI from facet. What have others chosen here?
...and why do they cite a range instead of straight 4 PSI? Is because it can be regulated between those numbers?
Thanks a lot and bear with me.