2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

Are Fuel press reg's same for N/a and T2?

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Old Mar 7, 2007 | 09:52 PM
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Are Fuel press reg's same for N/a and T2?

i am wondering if a t2 fuel pressure regulator is the same as an N/a fpr? anyone?
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Old Mar 7, 2007 | 09:57 PM
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no.
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Old Mar 7, 2007 | 10:44 PM
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I want to say you are wrong, but I cant prove it.


IIRC the FPR is the same. The difference is that the TII pump runs at a lower pressure at idle and then bumps up to a higher pressure at some rpm that I am not aware of. Hence why you have to swap in the resistor pack from a TII if you put the TII pump into an NA. The NA pump runs full pressure all the time. When the TII pump is placed in an NA it over runs the FPR and idle fueling is rich. Either you bring the resistor pack, or you get an adjustable FPR.


But I could be wrong.


BC
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Old Mar 8, 2007 | 07:21 AM
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N/A is 326-13-280
Turbo is 318-13-280

Mazdatrix has them listed separately.
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Old Mar 8, 2007 | 01:34 PM
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You cannot use the N/A FPR on a TII. It wont clear the intake, ive tried this myself.
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Old Mar 8, 2007 | 06:58 PM
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Noted and corrected.


BC
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