What kind of power do people usually switch to a double pumper system? I went with 1000cc injectors and im currently running a single Walbro. I still have a Evo 9 turbo and with my mods I should be around 385-400WHP with E-85.

Also, how do you know if your local gas station is running E-70 or E-85? Do they change the tag on the pump or do you just have to guess?

 

one should be enough..

 

http://www.socalevo.net/forum/index.php?topic=60177.0

He's running one, with the same injectors as yours. So it should be more than enough for you.

 

Yea, Ive heard that it would be enough but to be honest I see what kind of numbers CWill is putting down on stock turbo and he is running 1200's with a double pumper and FPR...

 

For the stock turbo, a single Walbro is sufficient.

There is another thread just started in this forum that shows the ethanol content vs month of the year.

 

you are good with one pump

 

I ran out of fuel on E85 with a single Walbro running a 35r with 1000 cc at 450 whp and 28 psi.

 

Someone was saying that he was running a sinlge bosche pump. Anyone know about this?

 

Well I got my Single Walbro installed with my 1000cc injectors and everything seems to be working fine...27psi and 17mpg off my 1st tank so im pretty pleased so far!