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Projects 34 drag truck build

Discussion in 'The Hokey Ass Message Board' started by Mat Thrasher, Jun 5, 2009.

  1. Hey nice to see you got it to the track and low 10's .....HELL YEAH !!!!!!!!!!!!!
     
    57tailgater likes this.
  2. nice number... i think deep 9's are well within reach once you get it dialed in
     
  3. Mat Thrasher
    Joined: Nov 5, 2007
    Posts: 1,074

    Mat Thrasher
    Member

    Thanks guys I had a blast yesterday and I'm happy with the 10.30. But the issue of falling on its face is driving me crazy.

    I'm hoping my issue is I've always had 1 accelerator pump that doesn't work. It was never an issue before so I kind of forgot about it. I'm guessing it's going lean when I slam the throttle. At least that's going to be my first plan of attack.

    As always I'm open to suggestions. I'll post up a couple of crappy videos so you guys can get a better idea what it's doing.






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  4. Mat Thrasher
    Joined: Nov 5, 2007
    Posts: 1,074

    Mat Thrasher
    Member

  5. paco
    Joined: Oct 19, 2006
    Posts: 1,138

    paco
    Member
    from Atlanta

    Hey Matt ... get that stumble fixed & your in the high 9's!! Impressive. Well - even impressive in the low 10's. Nice vids - keep the progress coming.

    Paco
     
  6. Model A Mark
    Joined: Apr 30, 2008
    Posts: 1,259

    Model A Mark
    Member
    from dallas
    1. Holley 94 Group

  7. Mat Thrasher
    Joined: Nov 5, 2007
    Posts: 1,074

    Mat Thrasher
    Member


    No, large base Rochesters.


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  8. Model A Mark
    Joined: Apr 30, 2008
    Posts: 1,259

    Model A Mark
    Member
    from dallas
    1. Holley 94 Group

    man i dont know squat about them mat.
    wish i could help yu.
    good luck, and love your pick up ..
     
  9. Man that bog reminds me of when I was tuning my tunnel ram on the Henry J. It bogged so bad I was saying to myself what the hell did it die, about the time I got to the "did" it took off again....ha ha I put more fuel to mine with bigger shooters and accelerator pumps, so maybe more fuel.
     
  10. Mat Thrasher
    Joined: Nov 5, 2007
    Posts: 1,074

    Mat Thrasher
    Member

    This is what I'm thinking too. I called my engine builder last night and he's saying the same thing. He told me I'd have a tough tune putting put too much fuel to a blower motor. He said it might blow black smoke if you get too much of a shot but it won't bog.

    I checked and all 6 of my pumps are working. So, I'm going to start by drilling the squirters to see if that is enough. Hopefully that does it. I read you can also shim the spring to give it some more fuel. If those don't do it, I'm going to have to get creative to increase the volume of the pumps. As far as I know no one sells a high volume accelerator pump for a 2G. But I have a few ideas on how to modify mine if I need to.


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  11. Same problem with my dual Holleys... put in progressively bigger shooters until the bog went away. As stated, the blower creates a situation where it's hard to put in too much fuel.
     
    Mat Thrasher likes this.
  12. Hollow65
    Joined: Jan 4, 2014
    Posts: 27

    Hollow65
    Member

    What size holleys are you running and what blower? Are you guys running fuel pressure gauges?
     
  13. Mat Thrasher
    Joined: Nov 5, 2007
    Posts: 1,074

    Mat Thrasher
    Member


    I'm not I'm running Rochester 2Gs. But maybe the other guys can comment.


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  14. Hollow65
    Joined: Jan 4, 2014
    Posts: 27

    Hollow65
    Member

    I should've msgd Saxon, sorry. Love the truck though! That's haulin ass. I ran an 11.2 at carlsbad when I was 19 with no cage and they flipped out on me. Circle track slicks. My mph was 122. Silly trucks are great
     
    Mat Thrasher likes this.
  15. 2 x Quickfuel 650's on an old school (Stage 1) 6-71. Underdriven 5%
    I run a pressure gauge at the distribution block as well as one in my windshield so I can monitor it down track. Be more concerned about volume than pressure. I run 9 lbs at the start and no less than 6 lbs down track. but had better results when I reduced the restrictions and made sure there was enough fuel volume getting to the bowls. I ditched the expensive cool looking stainless lines and now run individual lines to each bowl.
     
  16. SniffnPaint
    Joined: May 22, 2008
    Posts: 434

    SniffnPaint
    Member

  17. Mat Thrasher
    Joined: Nov 5, 2007
    Posts: 1,074

    Mat Thrasher
    Member

    I made it back to the track today. I only got a chance to make one pass. But I accomplished my 9 second goal! I got some work to do but I'm happy for now.

    The truck went 9.85 @ 142. I still can't believe the speed in a brick like this thing! Shit I didn't even close the windshield and cowl vent. :)

    The hesitation was a lot better but still slight. I had drilled the squirters on 3 carbs from .034 to .040 and increased the throw and speed of the accelerator pump on 1 carb before I went up.

    So I drilled another squirter and wanted to make one more pass. But there was a ton of cars there and was taking forever. My kids we're getting restless so I had to bail.

    All in all I'm happy. My ultimate goal with this thing was to have a pump gas and driven anywhere 9 second street car. So for now I'm good......

    ImageUploadedByH.A.M.B.1408907187.016074.jpg


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    AHotRod likes this.
  18. DIXON
    Joined: Jul 29, 2008
    Posts: 131

    DIXON
    Member

    Congratulations!!! That's a hard thing to achieve! And your MPH is ridiculous!!!

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    Last edited: Aug 24, 2014
    Mat Thrasher likes this.
  19. NICE!!!! Lets RACE!!!!
     
    Mat Thrasher likes this.
  20. pila38
    Joined: Mar 25, 2009
    Posts: 737

    pila38
    Member

    WOW!!!!


    Do you really care what I used to post this message?
     
    Mat Thrasher likes this.
  21. GREAT!!!!
    Happy for ya man!
     
    Mat Thrasher likes this.
  22. Mat Thrasher
    Joined: Nov 5, 2007
    Posts: 1,074

    Mat Thrasher
    Member

  23. Very cool
     
    Mat Thrasher likes this.
  24. loudbang
    Joined: Jul 23, 2013
    Posts: 24,437

    loudbang
    Member

    Mph a little slow for the ET you get off it in the traps or what?
     
  25. LeadSledMerc
    Joined: Nov 29, 2003
    Posts: 4,105

    LeadSledMerc
    Member

    That's awesome, Mat!!
    I can't wait to see what your 60' time and overall does, once you get the carbs working for you.
     
    Mat Thrasher likes this.
  26. Damn near 1/2 second quicker, it's very satisfying to see your own hard work rewarded !
     
    Mat Thrasher likes this.
  27. Mat Thrasher
    Joined: Nov 5, 2007
    Posts: 1,074

    Mat Thrasher
    Member

    Well I guess my hot rod season is over for this year. I dropped the truck off a Summit to sit on one of their turntables for the next month.

    I have to say it's a good ending to a great season. Starting with being picked for the Dirty Dozen by the Slick Devils at the Asylum/Cleveland Autorama, going to shows almost ever weekend, countless trouble free miles and putting it in the 9's!

    I can't wait to get it back in the shop to get it ready for next year!

     
    Last edited: Oct 4, 2014
  28. Mat Thrasher
    Joined: Nov 5, 2007
    Posts: 1,074

    Mat Thrasher
    Member

  29. That's a prestigious platform Mat, your truck is among some rare air and very deserving. What a way end the season.
     
    Mat Thrasher likes this.
  30. Awesome... Congrats
     
    Mat Thrasher likes this.

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