fuel pump differences?

[humberto]

What exactly is the diff between the Walbro 307 and the 340?

 

[striker_29]

I'm pretty sure the armature motors are different for one thing. The 340 draws less current, I wouldnt consider a 307 for a TR. In fact I would suggest an xp, not that my opinion counts for much. HTH

 

[19gn87]

Here's something I found on a quick search.....

"The GSS307M and GSS340M are the highest output in-tank pumps Walbro makes right now. Both supply the same volume 255L/Hr (67US Gal) @ 13.5VDC @ 3 Bar / 43.7PSI. The GSS340 model has a higher internal pressure setting for the safety bypass. The GSS340 pump is better suited for F.I. applications where line pressures will exceed 60psi."

From:
Discussion

HTH

 

[humberto]

Thanks for the input guys.

 

[bird]

humberto

time to build that double pumper....

 

[humberto]

Ya maybe?

 

[The Radius Kid]

Have a look here:

www.vortexbuicks-etc.com/tuning.htm#Fuel Pump Sizing