I have a Walbro 255lph fuel pump that I will be using with my turbo setup. I was wondering, will my car run super rich if I install it before I turbocharge the car?

 

awesome, thats what i was thinking, just wanted to double check before i did something stupid. thanks!

 

You'll run a little rich. It raises fuel pressure a good amount.

 

it'll definitely run a little bit richer. I did it in my integra and the a/f went from a 14.3 to a 10.0 just from the pump. I think if you put bigger fuel returns you'll aviod the problem but who cares. lean it out with more boost

 

----, well its installed already. not much i can do about it now. and to whoever said to lean it out with boost....if you read my question, i was asking about installing it before boosting. well yeah, i guess it will be running rich. as soon as my safc gets here, ill lean it all out. does anyone have any recommendations as far as how much to lean it out across the rpm range to get it back to running like stock?

 

I ran my walbro 255 before going turbo for almost a month. Everything was fine, I couldn't notice any difference actually.

 

I didn't notice a change besides the pump being hella loud