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Mazda Engine General \  Fuel Pressure Regulators

Fuel Pressure Regulators

Mazda Engine General Mazda Engine Mazda Tech
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following 4
 
bluebomber   +1y
How many people use a fuel pressure regulators with their Weber? Is it necessary? What pressure did you set it at? What brand do you use?
onelow_mazda   +1y
I'm using a Holley low pressure regulator w/ mine. It's set at 3.5 psi like weber recommends. I also installed a fuel pressure gauge on the regulator. I didn't want to risk damaging the Weber so I installed one. My engine runs great.
sosatheshark   +1y
i know a lot of people dont use them,but just because it seems to run fine for a while doesnt neccassarily mean it is ,i have one but not hooked up yet but will run one just to know psi,it cant hurt ,and since they dont cost much ,might as well use one .better to be safe than sorry .just my 2 cents
slamjammatt   +1y
i am running a reg aswell i am not to sure on the kind because it was on there when i bought it but mine is set at 1 psi and i get wicked fuel eco and still tons of power but my engine block is bored out and heads port and polished and shims in the lifers for better compression vaulves grinded down it has some more goodies but to much to say lol
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