Upgrading to high performance fuel pump - high pressure fuel lines needed?

[eek142]

The fuel pump in my '89 325i is about to crap out, so I've decided to replace it with this one from TRE performance:

http://treperformance.com/i-656-bmw-255-lph-fuel-pump-many-years-and-models.html

Will I need to upgrade the fuel lines to something that will be able to handle the higher pressure? Or will stock fuel lines be okay?

Also, from what I've read, this is the only pump I'll need. Is this correct or is there an external pump that needs to be replaced as well for an '89?

[DaveSmed]

Your fuel system pressure is controlled by the regulator mounted on the engine by the injectors- not the fuel pump. You will have the same pressure as before the different fuel pump.

[bejbis]

i responeded to your PM, i hope you dont get the TRE pump, their service sucks and my TRE pump failed within 4 months. never had a problem with a genuine walbro pump. its worth the extra 15$

pressure is the same with the walbro style fuel pumps, carbed cars had low pressure fuel line, and would need to be upgraded, any FI car will not need fuel line upgraded.

[eek142]

Thanks everyone. I'm gonna pull out the fuel pump today and peer inside the fuel tank. It might be rusty, and that might be my real problem. I will probably spring for the Walbro like you suggested, bejbis.

[nando]

Your fuel system pressure is controlled by the regulator mounted on the engine by the injectors- not the fuel pump. You will have the same pressure as before the different fuel pump.

not true. The regulator controlls the pressure inside the fuel rail, but the pump puts out several times more. the regulator can't control how much pressure a pump puts out.

that said you already have high pressure lines - I'd just replace all the fuel lines to be safe.