Burst Panel and Boost Gauge Question

Discussion in 'PSI Superchargers Tech Questions' started by gt_diesel, Jun 28, 2009.

  1. gt_diesel

    gt_diesel New Member

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    I went and did some testing last night... Track was real green as we have had nothing but rain here for a couple weeks.

    Blew the tires off on the line, got on and off the gas a few times, ran it to around 400 feet and coasted thru the beams with a 5.34 @ 101 mph... lol.

    Anyway, the tech guy told me he wanted a few things changed...

    First, was I use a plastic boost gauge line... He said it needed to be braded or copper..... I didnt see anything in the rule book about it.

    Second is my fuel block for my port injectors sits a few inches in front of the burst panel ( Not my idea, it was like that when I bought the intake ) I am planning on moving the fuel block to the rear, but was wondering if that was in the rules somewhere?

    Anyway... Here are some pics!

    [​IMG]

    [​IMG]
     
    #1
    gt_diesel, Jun 28, 2009
  2. Mike Canter

    Mike Canter Top Dragster
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    I use plastic black tubing for my boost gauge on two cars. I use the DOT air brake approved hose only. It is thicker and stronger. There is no NHRA or IHRA rule against it.

    As far as the distribution block in front of the burst panel I agree with him. When it goes it goes with a bang and will take out anything in front of it. Most of us that have learned the hard way use a aluminum machined 90* deflector to direct the force up and away from the hood. Most port injector fuel blocks are behind the motor attached to the back of the intake manifold.

    What tires and tire pressures are you using?
    What shocks do you have? Hopefully double adjustable? If so then where is the rebound set? How many swipes back from max tight? Where is the compression set? Did the car slap the wheelie bars and unload the rear tires?

    Did they have VHT on the track?

    Great pictures.
     
    #2
    Mike Canter, Jun 28, 2009
  3. moparchris440

    moparchris440 Member

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    It should't matter if location of the Dist block is in the rule book or not MOVE IT from in front of your burst pannel otherwise you will have a fire if it blows and brakes a line .
     
    #3
    moparchris440, Jun 28, 2009
  4. gt_diesel

    gt_diesel New Member

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    We are planning on moving the block anyway... The shocks are double adjustable, we were running 6.5 pounds of air pressure when we unloaded the tires. The suspension is setup the same way it was when it had the nitrous motor in it... It went 4.40's with the nitrous motor.

    Anyway, it was good to get the car out and make a few passes.
     
    #4
    gt_diesel, Jun 28, 2009
  5. Mike Canter

    Mike Canter Top Dragster
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    There is a lot of difference on the initial hit with a blower motor to a nitrous motor. If they are Hoosier tires I would try dropping the pressure down to 6.0. You didn't say what kind of rear shocks. If the rebound is too tight then you will not plant the tires. You might try backing off on the clutch base a turn until you get it to hook.
     
    #5
    Mike Canter, Jun 28, 2009
  6. Randy G.

    Randy G. Top Alcohol

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    I run the same plastic brake line for boost to the computer. It's rated for 500#. Unless you have your blower running on hot air coming from the White House I doubt you'll see those kind of numbers. Regarding the fuel lines sometimes you make your own luck. Get some Nomex covers made if you have no other option.
     
    #6
    Randy G., Jun 28, 2009

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