Which Fuel Pump to go with

(Greg) #1

So i have two working fuel pumps, and can’t decide which to use on my 88 XJS V12.

Walbro GSL391 - Flow rate 190LPH @43.5psi
Bosch 69536 (580464008 with turbine tech.) - Flow rate 130LPH @43.5psi

I’ve heard the Bosch turbine is better tech and quieter, and 130LPH should be fine for up to 350hp, so I’m leaning towards the Bosch.

(Paul Wigton) #2

130 lph is puhlenty for your street engine.

(Kirbert - author of the Book, former owner of an '83 XJ-S H.E.) #3

And too much is not good here. Just puts more heat into the fuel.

(John) #4

I would go with Bosch. Reliable quality and sufficient flow rate. Extra flow rate will not give you any benefit on stock engine except extra heat.

(Greg) #5

Thanks for all the advice guys. I will go with Bosch, especially since I removed my A/C fuel cooler.