Big CI motor small carb.

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  • 7uptruckracer
    Senior Member
    • May 2009
    • 1336

    #31
    Never did, some of this post happened after the wreck, I should pickup the car tomorrow and will have some more shows I can make. I'm going to talk to motor builder after I test it in a week or so. I've gone to a stiffer RR and stiffer ride springs in the front I was really soft and I think it was spiking wheel loads on the bumps too soon on entry and causing it to shear the RF, I need it to be at max load right before apex and the LF needs to stay on the bump all the way through exit the track only has 6* of banking so keeping the LF down is tough. Should help my cause all the way around and the motor deal The handling might help but we need to go to a cam that just isn't so peaky
    Originally posted by hpontap View Post
    Hate to hear that. I know how it is to lose a good car.
    Did you ever make any changes to it and if so, how did it do?

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    • hogracer3d
      Senior Member
      • Sep 2007
      • 511

      #32
      might suprise you, we did a 13:1 406 with 14* RHS Iron heads with 235 cc runners that flowed 345 CFM, big roller cam, played with it on Dyno with 850 4 bbl made 702 HP, decided for sh!ts and grins to put the gauge legal VDL 4412 on it, and it shocked us with 536 HP, but nosed over at 7200

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      • Jim11h
        Senior Member
        • May 2007
        • 1501

        #33
        That's impressive HP on gauge legal 2 barrel

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        • fast_crew
          Senior Member
          • May 2007
          • 844

          #34
          I'd try adjusting the throttle ratio and linkage so that the throttle pedal travel remains the same but the carb only opens say 1/2--3/4 of the way, what ever you feel is enough. This works surprisingly well, and the driver doesn't really notice the difference since pedal travel remains the same. Its a quick easy adjustment and doesn't require an engine tear down.
          Josh K.

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          • 7uptruckracer
            Senior Member
            • May 2009
            • 1336

            #35
            My carb builder was adamant against that. We have gotten some restrictor plates and also just going to take some cam out well try to spread the power around instead of what I thought I wanted it to do which didn’t work. Yes it makes great power which would fly at one of the 1/2 mile banked tracks but I will rarely run that track so I need to knock it down I’ll keep y’all posted!

            Originally posted by fast_crew View Post
            I'd try adjusting the throttle ratio and linkage so that the throttle pedal travel remains the same but the carb only opens say 1/2--3/4 of the way, what ever you feel is enough. This works surprisingly well, and the driver doesn't really notice the difference since pedal travel remains the same. Its a quick easy adjustment and doesn't require an engine tear down.

            Comment

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