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

fuel pressure riser?

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Old Aug 11, 2003 | 11:24 AM
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Novacaine's Avatar
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fuel pressure riser?

If you were to use a supercharger would you need a fuel pressure riser or can you use a safc? beacuse I was looking over aaron cake's conversion to a turbo and I didn't see him mention one in there, does the S-AFC take care of the need for this? as for the fuel pressure riser did the TII come with one?
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Old Aug 11, 2003 | 12:46 PM
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The T2 did come with a fuel pressure regulator. My guess would be Aaron used a stock T2 one. The stock on works OK, but like anything if you want to do it right you should look at replacing it with a better unit. Remember to get a rising rate regulator.
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Old Aug 11, 2003 | 01:45 PM
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Originally posted by rx7_turbo2
The T2 did come with a fuel pressure regulator. My guess would be Aaron used a stock T2 one. The stock on works OK, but like anything if you want to do it right you should look at replacing it with a better unit. Remember to get a rising rate regulator.
The N/A FPR will reference at 1 psi of rail pressure for every psi of boost, just like the TII one. It is how they are designed. Please take note that this is NOT a rising rate FPR, which exists in that fuel pressure would increase at a higher rate than 1 psi for every psi of boost. An example would be: fuel pressure increase 1.7 psi for every 1 psi of boost.

You could run a rising rate fpr, an FMU (basically the same thing), or tune it with larger injectors and a S-AFC.
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Old Aug 11, 2003 | 02:04 PM
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ok cool so if you get larger secondaries and or primaries and just tune it with a S-AFC you should be just fine?
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