I've used both with boost. The Walbro was noisy. Other than that it's just piece of mind. If I were building a nice motor with forged internals I'd upgrade, but if I'm planning on shooting a rod out of the side of my stock D block I'll just use the stock pump because it's cheaper. :P
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runnin stock right now...have a walbro sitting waiting to be installed...all like they said...for piece of mind

 

i used a 255 with my last setup and now am using a stock one and can't tell the diferance.

 

Rad, i can use the $100 i save towards when it breaks, again.

 

am i the only one that noticed he was running 15psi with stock everything and an fmu lol. surprised he aint tryin to run 20psi with his upgraded injectors and ecu... stock pump will be fine. but ur amazing

 

i'm running a walbro 255 just for peace of mind but from what i've heard i didn't need to upgrade the fuel pump. oem honda fuel pumps last a long time.

 

The 15psi was accidental, i only did it for a few seconds a few times until i got an intake and exhaust on it backing it to 8psi.

 

intake and exhaust don't adjust your boost level :scratches head:

maybe u just meant to say after u put those on u turned it down.. not it went down because of those

 

Run your turbo without an intake or exhaust connected, it will boost more.

My results:

Open turbo - 15psi
Cut up loose weave fabric until buying air cleaner -12psi
Air cleaner - 10psi
Air cleaner and exhaust - 8psi

 

do you have an internal wastegate? I guess it would make some sort of sense if you might peak more with less restriction...considering I know people with Interal gates taht when its cold they spike/peak higher boost levels...however...I havent seen my External leave the realm of 8psi on my 7.5psi spring. If its internaly gated...I guess I can see that being a possibility