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Thread: ET LB Advice

  1. #1

    ET LB Advice

    I am about to install an ET LB wheel in my 2008 FX SHO. It only has about 22 hours. I have an AFR gauge on it and I ordered the Riva RRFPR. Also, I have a Fizzle with Tial BOV.

    I need some expert advice on the following:

    1. Should I upgrade the SC shaft and bearings while I am at it?
    2. Where should I set the pressure on the Rising Rate FPR? 44psi?
    3. Where should my AFR's be at WOT? 12.2?

    This is a great board. Thanks for your help.


  2. #2
    SOV's Avatar
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    1-is not necesary.
    2- about 55psi,
    3-AFR at wot should me 11.8 or 11.9, so you have to set the fuel pressure depending on that! The engine must be hot when you read the AFR

    Sergiu

  3. #3
    Will Willfzs's Avatar
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    I ran LB on stock shaft and bearings
    Fuel pressure at 50-52 lbs without vacuum line hooked up.
    My AFR was 11.6 at 52lbs and 12.0 at 50lbs.

  4. #4
    Slamdcoop0428's Avatar
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    I ran it at 40-44psi rising rate depending if I had the kana flex hooked up or not.

  5. #5
    AWA MEMBER
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    40 with hose hooked up for me, don't need the shaft with that wheel, and 12-12.5 is ideal wide open

  6. #6
    Thank you for the great information.

  7. #7
    badjoka's Avatar
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    I like 11.8 for wot, check the suggested afr tables posted on previous threads.

  8. #8
    Finally got everything installed this weekend and went out for a quick "test". Before adding the ET LB and Riva FPR, I was at 13.3 afr with a stock wheel, R3, Fizzle IC, and 160mm pump. I only rode it once like this because I was concerned with the high afr.

    Today, I set the RRFPR at 40psi with the vacuum hose on. Idle was good at 12.4 AFR but my WOT was between 11.4 and 11.5 AFR. I think that is a little rich. Should I lower it to 38psi?

    It runs great. I did 75.4mph but I ran out of real estate so I had to back off. Before the ET LB, I was only at 70 mph.

    Thanks for everybody's feedback.

  9. #9
    Slamdcoop0428's Avatar
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    Lean that thing out a bit. I run mine around 12.0. Plugs look perfect.

  10. #10
    hdlefler's Avatar
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    Thats pretty rich up top so yes lower it to you get 12.0-12.2. What rpms are you turning? You need to be around 8600. I ran with no vacuum line hooked up (static) when I had that wheel on my fzr.

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