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  1. #1
    ou812's Avatar
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    stage 2+ fuel requirements.

    I can only get 91 pump gas here in socal or it's vp 100+ down the road.
    Riva states the following on the stage 2 setup. Interesting on the ECU adding fuel automatically. I'm a stage 2 but added the RR S3 wheel & removed the RR IC for now. I'm installing the XS IC soon so, I won't have to mix will I?

    NOTE: No modification of fuel delivery system required. Our testing has shown that the original ECU automatically increases the amount of fuel as a response to the increase in manifold boost pressure with our Stage II Kit. Original air/fuel ratio is maintained throughout the entire RPM rpm. Use of premium octane (92+) pump fuel is required.


  2. #2
    Moderator Insanediego Joe's Avatar
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    I ran 91 octane through my 04 rxp and now the spitfire with no problems at all. Keep in mind its the same motor. Some race hours on it also

  3. #3
    Site Admin Green Hulk's Avatar
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    91 Ocatane is adequate

  4. #4
    ou812's Avatar
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    thanx!

  5. #5

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    Are there any possible problems like detonation or such from running lower octane fuel? Only thing I've heard it a loss of about 2 mph!

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