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Looks like I am Going Racing This Sat.

Discussion in 'High Performance Modifications' started by 1980RS, Jun 4, 2020.

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  1. Jun 9, 2020 #31
    BonzoHansen

    BonzoHansen Administrator Lifetime Gold Member

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    Wow, now I really don't like my flow masters
     
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  2. Jun 9, 2020 #32
    1980RS

    1980RS Veteran Member

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    It's not all the mufflers fault, the pipes I have are 3" but not mandrel bent. When I first used the setup with a friend who used to make his own race mufflers the car was still 4 tenths off from open exhaust. I do have the X -pipe setup off my other car I could use to see if it's any better.
     
  3. Jun 9, 2020 #33
    1980RS

    1980RS Veteran Member

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    20200609_141315.jpg 20200609_141326.jpg 20200609_141302.jpg 20200609_141306.jpg Here are the 062 Vortec's. Just need to a clean up, cut the valves and assembly.
     
  4. Jun 9, 2020 #34
    muscl car

    muscl car Veteran Member Lifetime Gold Member

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  5. Jun 9, 2020 #35
    G72Zed

    G72Zed Veteran Member

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    The track tell's you a lot about the setup, and changes if they are good, bad or the same, the buck stops there, and it's made there too.

    Question, did you track the vacuum reading for the different carbs through the traps ??
     
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  6. Jun 10, 2020 #36
    monzaracer

    monzaracer New Member

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    Well your cams pretty close to matching the heads, you shouldn't have any issues till you try to get up on top end. As long as you don't try to rpm the engine and find it's sweet torque spot you should at least get a solid low 12 at least, just remember if there hasn't been lot of racing track will be slick most likely. If on street tires a slight drop in pressure and don't burn inside water box. At best turn tires in water pull just in front or go around and back up in front of box where it's wet.
    This keeps water out of treads. Spin till you see bit of smoke and drive out.
    Stage up and wait follow track rule as most want you to prestage then let other guy prestage then both bump on.
    Good luck and have fun. I envy you.
     
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  7. Jun 10, 2020 #37
    C4Racer

    C4Racer Veteran Member

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    I think you missed the part where he already went and ran a 11.66

    Nice runs - especially the 60'

    I have a similar 406 with slightly better TFS195 heads and similar cam that has run a [email protected]+ with a more drag oriented set-up and that was with 3.73 gears too. Currently the car has 3.89 gear but is now set up as a handling car with a T56, but I bet it would still pull solidly into the 11s.

    Anyway - congrats and most of all for getting out racing again! I'm looking at a autox event in early July.
     
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  8. Jun 10, 2020 #38
    1980RS

    1980RS Veteran Member

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    Not this time as I did not have the vacuum gauge installed. Guess I should remember to put that back in. Thanks for reminding me.
     
  9. Jun 10, 2020 #39
    1980RS

    1980RS Veteran Member

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    The combo is a pretty good one and this has the potential to go 11.30's with some good air and track prep. On the 11.66 run the car spun just a tiny bit but that was not unexpected as the fox body in front of me hazed his tires so I knew that night happen. Was going out this weekend but they got over 3" of rain and I know that track is going to have trouble so I will wait. Next test is, 1.6 rocker on the intake side and Hooker 1 3/4" headers. We will see if this helps.
     
    Last edited: Jun 10, 2020
  10. Jun 10, 2020 #40
    xten

    xten Veteran Member

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    Are you making both changes before you go back to the track?
     
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