cacmanjr

iTrader: (14)

Hi, guys. This is my first post here although I have been lurking for a while now. I am new to the turbo world and looking for some fuel pump information. My project car is in my signature and I am having a Turbonetics 7875 installed. I am only looking to run about 10lbs of boost for around 550-600 rwhp. It currently has a Walbro 255lph pump installed which I don't believe will support my goal. Anyone have experience running the Walbro 416? I have searched all over the site and have yet to find anyone running that pump.

herecomesboost

I'm running a Walbro 400 (416); silent compared to the 255. I suggest you hardwire the pump (if you haven't already done so with your 255). I'm using 10 gauge wire from the battery to a new relay as well as directly from the relay to the pump (using the factory fuel pump wire as a trigger for the relay).

cacmanjr

iTrader: (14)

Hey, thanks for the reply. My 255 is already hard wired with 10 gauge. Any problem with it supporting your horsepower level?

herecomesboost

The limiting factor in my case was the clutch. I could have gone higher (probably closer to 650whp) with the Walbro 400 (on E85) with a better (clutch) disc.

cacmanjr

iTrader: (14)

Thanks again. They are reasonably priced and it sounds like it will do the job. Anyone else have any comments on the 416?

LCR Camaro

iTrader: (13)

I'm planning on doing a twin setup with those pumps soon

cacmanjr

iTrader: (14)

If they are for the car in your signature, I could see why you would need two!

LCR Camaro

iTrader: (13)

those times were with three 255's on e85 but I redid the whole setup this last year and was gunna run the nasty tank with the magnafuel 4303 pump but from what I've found two of these pumps will flow quite a bit more

cacmanjr

iTrader: (14)

Sounds good! Now I find out that walbro has a 450lph e85 pump. That might be better for me running a single pump.