Congrats on getting her dialed in with plenty of summer left!

Guys,

I am still only seeing about 52lbs of fuel pressure in boost condition. ProCharger manual indicates we should be at 62-65lbs. Assuming the pump is capable, the regulator is functioning properly and the gage is accurate, I should adjust the regulator to achieve that pressure?

I’ve also noticed that when I initially turn the key, when the fuel pump primes the system, the gage initially show that ~52lbs, then drops to the manifold vacuum condition pressure or 38lbs. Is that initial 52lb reading showing me the boost condition pressure? Or do I need to make an adjustment, make a hard run, make an adjustment, make a hard run, make an adjustment….. etc…. Until the boost fuel pressure is where we want it?

Thanks. Brad.
(937)545-8991

how much boost are you making?

Sutphen,

~3lbs @ 5K RPM.

Thanks. Brad.
(937)545-8991

with the way you have it set up,52psi is probably about right for your boost,as set up now.how are your afr's?

Sutphen,

AFRs….. Now you’re talkin’ Egyptian….

I do know what AFR is. I just don’t know how to get that data. I now have a Techmate Pro, if that helps.

Thanks. Brad.
(937)545-8991

air fuel ratio,,techmate doesn't do it

Need to add O2 sensors if you want to see AFR.

DrFeelgood,

Where do I add them where they won’t get eaten by the water in the exhaust? I have the stock Merc 496 manifolds.

Thanks. Brad.
(937)545-8991

They have to be added in a location prior to where water mixes with the exhaust gas. Something like this, for example:
https://affordable-fuel-injection.co...adapter-plate/