pretty basic...whats the most power you can squeez out of a walbro 255

Please reply in rwhp.

thanks.

 

i would say somewhere around 300hp or so. good for bolt-ons and such. if you plan on making big power go with a bigger pump

 

The welbro has run 7'ns up to 500bhp but i've also seen them drop from 255lph to 210lph so every cars diffrent.

 

Precision Turbo and Engine http://www.precisionte.com
are heavy hitters in the turbo world and build some outrageous V6/V8 turbo cars. They have a 6 second single turbo car and plenty of 7 and 8 second cars as well.

They are well known in the Buick GN world (turbo V6) and they tested 4 separate Walbro 307's (255lph) and a Walbro 340's (hi pressure 255lph-shimmed pressure spring on a stock 307 in reality). Running thru -8AN line and 14 volts to the pump (hot wire kit with larger guage wire and a relay) they found they found that all of the 340 units could support in excess of 700 flywheel hp. This is about 575rwhp. When running the standard 12.2 volts to the pump the volume and HP decreased 20%. Definately hot wire the pump to get the higher voltage from the alternator.

Should be enuf to support any streetable 13BT setup.

I run an intank Walbro 340 for my setup with no hiccups at all. Best $109 I ever spent.

GNX7

 

can you link to the hot wire set-up and where i can get the 340. thanks

 

350hp to the wheels as a rule in my book.
I don't trust those things over that kinda power levels.
If you're making more power, you can afford a Bosch Motorsports fuel pump anyways.&nbsp The Bosch fuel pump runs about the same kinda flow number (it runs at a higher pressure than the Walbro), but I'd trust Bosch over Walbro anyday.

A friend just troucleshooted a hesitation problem to his failing Walbro fuel pump a few days ago - he's pissed.&nbsp Datapoint - it was running fine for 2 years...


-Ted

 

So what would be your recommendation for a fuel pump for a 250-300 RWHP TII Reted.

 

SR Motorsports makes some nice high HP application fuel pumps.

www.srmotorsports.com

 

Im probally pushing 350-380rwhp through mine. No prolbems so far.

 

Walbro is fine.


-Ted