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Thread: HHO Dynoed +10whp +10tq

  1. #1
    ff_jeff Guest

    HHO Dynoed +10whp +10tq

    I wasn't too happy with my power, but I guess I never will be. But on the second run I had him flip the switch to the HHO and amazingly I got an increase. Now there also is a noticeable difference in the a/f ratio. But he said that since I have a dual exit muffler, it would read a tad lean. On the Dyno it was upper 13's w/ HHO to low 14's w/o HHO. On my gauge it was 13.0-13.3 w/o HHO and 12.8-13.2 w/ HHO. Here is a pic
    Here is the video. My truck is allot louder than I thought. YouTube - 4.8 pre-cam dyno news I guess. I need a retune fo-sho
    Last edited by ff_jeff; 09-23-2008 at 10:47 AM.

  2. #2
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    I assume the lower AFR with the HHO is due to the hydrogen molecules displacing the O2 molecules and the sensor isn't smart enough to know the diff? Or am I completely out to lunch on the concept?

    07 Z71 4x4, 6.0L, 3.73s, Turbonetics T76 @ 10 psi, 75 shot, Snow meth kit, PLX DM-100 wideband gauge, Nelson tune, Comp 212/216 .557/.561 114 lsa, 60# injectors, Yank 3000, 4L80E , Magnaflow - dumped, e-cutout
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  3. #3
    ff_jeff Guest
    Might be. But It could be because the HHO is burning the leftover gas, and the o2's are reading lean and over compensating with more fuel. I dunno, But There is definitely a difference.

  4. #4
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    Nice Jeff....the vid doesnt work!....LOL Good numbers,I hope Top Dick sees this!
    Vortec Performance Tuned
    LQ9 built 4L60 LTs and a billion miles on the speedo!

  5. #5
    ff_jeff Guest
    He dynoed in 3rd, with the tow button on. would that make a difference with the tow button on? I know on the street, with it on the tranny shifts at 5200 instead of 5800. Didn't know if the fuel maps were different too.

  6. #6
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    On the Dyno it was upper 13's w/ HHO to low 14's w/o HHO

    my gauge it was 13.0-13.3 w/o HHO and 12.8-13.2 w/ HHO
    Both of these show that it was leaner without HHO (richer with HHO)...did you mis-type something?


    2006 GTO M6 Brazen Orange
    2006 Silverado CCSB Duramax


  7. #7
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    Quote Originally Posted by ff_jeff View Post
    He dynoed in 3rd, with the tow button on. would that make a difference with the tow button on? I know on the street, with it on the tranny shifts at 5200 instead of 5800. Didn't know if the fuel maps were different too.
    No, tow button just changes trans shift points and pressures.


    2006 GTO M6 Brazen Orange
    2006 Silverado CCSB Duramax


  8. #8
    ff_jeff Guest
    Quote Originally Posted by thunder550 View Post
    Both of these show that it was leaner without HHO (richer with HHO)...did you mis-type something?
    nope, its leaner without HHO

  9. #9
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    Hmmm that's weird. I'm trying to figure out how that would work. When you go WOT the PCM doesn't add fuel based on O2 sensor input since it goes into open loop. It does add fuel from the long term trims though, assuming that they were positive.


    2006 GTO M6 Brazen Orange
    2006 Silverado CCSB Duramax


  10. #10
    ff_jeff Guest
    so what do you think? That because I always run HHO, that when I took it off it ran More lean than normal.

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