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Mazda Engine Performance \  Fuel delivery

Fuel delivery

Mazda Engine Performance Mazda Engine Mazda Tech
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replies 3
following 2
 
dat dood   +1y
What fuel pressure regulator and jetting is everyone running on their Mazda's with 32/36 DGV Webers? I got an off idle stumble and I think it should be getting better mileage. It's an 88 B2200 with Weber, header, 2 1/4 exhaust (no cat) and electric fan. Timing is good, same with the vac adv. Thanks, I just need a good starting place.
emjay   +1y
I have heard that Mr. Gasket is the most common one to be used. however it isn't necessary with the mechanical fuel pump on the manual trans setups, just the auto trans setups that use the electric pump to you really NEED one.
dat dood   +1y

I know its not 100% necessary, the truck does run pretty decent without it. I have read that the stock mechanical pumps vary between 4-7psi, and the Weber likes 3-4psi. I'm just trying to tune it a little better. Thanks for the input.
dat dood   +1y
Bump!!!!

Has no one swapped jets or installed a regulator?
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