walbro fuel pump install

preludebuddy

Senior Member
i just installed my walbro fuel pump, which was an absolute disaster btw. anyway its in and its working but my fuel pressure jumped almost 8 psi at idle. it was at 42ish, now its at about 50. i have an aem fuel pressure regulator, just havent installed it yet. do i need to install it and get the fuel pressure back down or is 50 psi okay for a gsr motor? reason i'm asking is because i want to sell the fpr if i dont need it so i can buy other things for my turbo project.
 

ripperbone

angry bear
i would keep the regulator, install it and see what the reading is at, and if needed then adjust the pressure down
 

ripperbone

angry bear
im not sure about that, if its different than the b16 or not.

I have my b16 at 30 psi at idle and when you hit the throttle it spikes to 40. my set up is set for stock pressure. I would think that your setup should be the same.
 
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