walbro 307, can it handle 11's?

[TurboBeagle84]

i am just curious, im not even close to the 11's yet but i need to know if the 307 will supply enough fuel to get the job done.

 

[c&cgn]

Yup, it'll go deep 11's. Check out my sig.

 

[John84GN]

Jack Cotton went a 10.70...I think...but I know it was in the 10's...

 

[TurboBeagle84]

thanks guys. what is the different about a walbro 340? do they flow more?

 

[Sweet6]

I have heard that the 340 is a better pump than the 307. The 340 draws less current and has better internals. At least that is what I was told by someone who works very closely with these pumps. Also the 340 can go to 80 PSI, whereas the 307 can only go to 70PSI unless it is "modified" There is a pressure release spring that needs to be kept closed in order to get past 70PSI. Not sure how it is done though. Hopefully some else will chime in.

 

[Mr URL]

Key is having large enough injectors that you don't have to push really high static fuel pressures. If you do then the 340 is a better choice.