PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

Low power or high expectations ?!?

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Old Oct 19, 2016 | 06:10 AM
  #21  
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I bet it did pick up a bunch of power by a small timing increase. Whats the reasoning for being so conservative?
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Old Oct 19, 2016 | 06:49 AM
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not sure taking it somewhere different next month to see what they can make of it. If that's really the case hopefully they can answer why its not making the power it should.
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Old Oct 26, 2016 | 09:50 AM
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Do you have a good wideband in it? If so, what does it show for AFR on WOT? I think if it were mine, I would have to start with 3 steps like basically everyone said, wideband, pull the watermeth at first, and bump 1* timing in. Make a pull, yank the plugs and check them. Read for color and marks, rinse, repeat. Once you see it showing on the plug, add back in the yellow **** meth on a small nozzle, and see where your at.
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Old Nov 1, 2016 | 10:58 AM
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Good idea with the plugs, I would rather be safe than max power. Going to get retuned Friday so I will check the plugs as we go ! I have a feeling I am way off on timing.
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Old Nov 1, 2016 | 05:08 PM
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This is what the plugs currently read, can someone help me on these? I know the motor is still pig rich






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Old Nov 1, 2016 | 10:01 PM
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Is that 1 plug or a few? What was the condition when it was being ran last? Was it a WOT pull and then shut down? To get what your looking for, a WOT pull, and then shut down as quick as possible is best. The color will change on plugs pretty quick.

Where was the wideband reading on that? And was that on a dyno or street pull? Defiantly looks like it could be leaned out. I would start there, get the color right, and then start rolling in timing.
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Old Nov 10, 2016 | 12:40 PM
  #27  
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Can't read them with blurry pictures
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Old Nov 11, 2016 | 02:59 PM
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Water/meth nozzles should be before the blower.

If you mix water and methanol be sure the mix is always consistent and at least 30% water for stability. If just alcohol you'll need 100% methanol compatible parts, especially the pump.

Agreed with not enough timing, especially running that rich, fairly low boost, and that low of compression.

Can you put on a smaller pulley without throwing belts or hurting the motor? Fuel system seems more than capable of more boost.
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Old Dec 5, 2016 | 01:59 PM
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is 12.2 afr rich? even with meth i would put 5% more fuel in there. no idea what to think about the plugs, they look rich.
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