Hi can anyone help me out with aem fuel regulator. My setup is 450 walbro pump with 8an feed and 6an return. Boosting 16-18psi, which orifice size should i use.The aem regulator comes with the .100 .150 and .200.
I was thinking of using the middle .150....

 

my tuner use the .100 on mine. I have try the .200 and controlling fuel pressure was all over the place. Could get it stables. Mine started leaking after a couple hundred miles. I have ditched the aem fpr and went with the Aeromotive a1000 fpr. So much better than my aem. I did have to do custom lines.

 

A1000 ftmfw!

 

what size injectors and how many boost were you pushing?what size pump are you running

 

id1000, 14psi, aem 320 e85 pump. Base fuel pressure is at 70psi right now and the car made 500hp and 316tq @ 14lbs on a dynojet.

 

Thanks you for your information. Im stuck with the aem fpr as right now. Going to try the .200 since my my is walbro450.

 

Your welcome. You can install the .200. If you have a fuel pressure gauge. Play with the adjustment and see how small of a pressure adjustment you can make. Mine would jump like 10psi all over.