Timing vs power

Discussion in 'Manton Push Rods Top Alcohol Tech Questions' started by racecar1517, May 22, 2017.

  1. racecar1517

    racecar1517 Member

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    The more timing that is removed the lower power out put correct? Have trouble with the first 10 feet.
    Thanks ITA!
     
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  2. Mike Canter

    Mike Canter Top Dragster

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    Yes, that is correct. One degree is worth about a 100 hp
     
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  3. racecar1517

    racecar1517 Member

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    I'm pulling 10 degrees out at the step and just performing a second burn out.
     
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  4. jay70cuda

    jay70cuda Member

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    Wow. What's your combo. Tranny gear and rear sounds like too much gear to me.
     
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  5. racecar1517

    racecar1517 Member

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    125in, 526 1471 b&j quick drive. 1.68 low 4.29.
    I think the problem is in tire pressure and wheelie bar height.
     
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  6. Mike Canter

    Mike Canter Top Dragster

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    Your tire pressure should be right at 6 psi
     
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  7. racecar1517

    racecar1517 Member

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    Goodyear 34.5x17x16, liner set at 60 tire at 6.0. We set the wheelie bar at 3 inches bottom of wheel to ground.
     
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  8. TADHemiracer

    TADHemiracer Member

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    Might sound odd, but how old are the tires? I bought a set of 36" tires for the wheels and thought, what the heck, let's try them. Like putting on roller skates.
     
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  9. Will Hanna

    Will Hanna We put the 'inside' in Top Alcohol
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    Is the wheelie bar mounted to the rear end like a dragster or up to the body tree?
     
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  10. racecar1517

    racecar1517 Member

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    Its mounted on the rear end.

    Another issue I've been working on is idle egt's. I understand that aren't hugely important except mine have been above 750-800 degrees. The more I adjust the barrel the more they spread out. Soon #1&2 holes will be out!
     
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  11. Mike Canter

    Mike Canter Top Dragster

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    That is caused by the Manifold. Adjust the BV at the coolest point without putting out the fires in 1&2
     
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    Last edited: May 26, 2017
  12. racecar1517

    racecar1517 Member

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    Mike, I'm not understanding. The port nozzles are not open at idle. What am I missing? The plugs are balanced as far as burn, the egt's in high gear are within 35 degrees across. Thanks
     
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  13. TADHemiracer

    TADHemiracer Member

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    The blower throws the fuel to the front of the manifold. That is why I use a set back manifold. Problem solved.
     
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  14. racecar1517

    racecar1517 Member

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    I have a 2 inch set back on the blower now. Since I run a body, thats as far back as I can move it.
     
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  15. Mike Canter

    Mike Canter Top Dragster

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    Position of blower on the manifold and design of the manifold cause the imbalance at idle. So you can only adjust the barrel valve to rich or lean at idle unless you install dribblers to run at idle and cool the hot cylinders. As long as it is balanced at WOT idle really doesn't matter
     
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  16. racecar1517

    racecar1517 Member

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    Ok. I have heard of dribblers, and that there a pain.
    The issues is that the last run, the average egt at launch was 610 and a it just doesn't seem to be the correct setup. At least not a winning setup. Thanks
     
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