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I will be installing an adjustable fuel pressure regulator soon and was hoping someone could give me a little insight into it`s installation. I have a 7.4 MPI (310 hp) Mercruiser (1998 model).
I have been told that I need to pull the intake manifold and stand on my head to get this done...True? Also, what is the factory PSI? About what should I adjust it to? I have added Stainless Marine Hi-Torque exhaust manifolds and large diameter tailpipes/tips, along with a K&N flame arrestor. Otherwise this is a stock set-up.
I am somewhat disappointed in what little improvement these modifications have given. Will bumping up the fuel psi unlock the horsepower that the exhaust should have given?
I`m a little frustrated right now and the wife isn`t too happy about the money I spent for such a small gain (if any gain...)
Can you guys enlighten me?
THANKS!
I have been told that I need to pull the intake manifold and stand on my head to get this done...True? Also, what is the factory PSI? About what should I adjust it to? I have added Stainless Marine Hi-Torque exhaust manifolds and large diameter tailpipes/tips, along with a K&N flame arrestor. Otherwise this is a stock set-up.
I am somewhat disappointed in what little improvement these modifications have given. Will bumping up the fuel psi unlock the horsepower that the exhaust should have given?
I`m a little frustrated right now and the wife isn`t too happy about the money I spent for such a small gain (if any gain...)
Can you guys enlighten me?
THANKS!