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  • #1

    Remove Belt during Q mile Pass?

    I am getting ready for saturday when I will attempt to make my sacred 13.2 second pass.

    I got a crazy idea... share your thoughts.

    If I let the engine get completely cold before my pass...
    If I push the car into the staging lane...
    If I start the car at the latest possible moment before I have to stage and go...
    If I make the pass with my cooling fans on high...

    Would I be able to remove my drive belt and eliminate all that extra engine induced drag? I know it would give me a huge power advantage, but I fear the cons outweigh the pros, especially since I am spraying a dry 85 shot.

    Here are some things I am afraid of:
    engine simply overheating from having a dead water pump.

    Cylinder heads or any other engine part cracking from shock heating at launch.

    Not getting enough spark near the end of the pass from a near dead battery.

    Everyone getting mad at me for slowly pushing my car all around the pit area.

    Throwing a code halfway down the track and going into "limp home" mode.
    1999 red camaro v6 M5: with a turbo<br />13.52@107.99<br />No, seriously: Who Farted? <br /><a href=\"http://www.cardomain.com/memberpage/600086\" target=\"_blank\">http://www.cardomain.com/memberpage/600086</a>
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  • #2
    dude, take the belt off. i am just dying to see how much faster that makes it.
    6s.......under the hood or under the belt, they just dont cut it.

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    • #3
      With the belt and air filter removed you can expect a 3/10ths drop in ET. But you don't make your run cold. That would be your mistake.

      Start the car long enough to get it up to normal temperature about 180. Then fire it up, make your run, and shut down after the trap is set.
      <b>15.41</b> @ 89.80 & 15.45 @ <b>91.64</b>, 2.21 60ft, 3,440 raceweight, using <b>OEM</b> Equipment. <br />\'98 L67/M49 w/ 134,000 miles before spun bearing. \"<i>It\'s all stock, Baby</i>!\"

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      • #4
        i ran my car with no maf screen, air silencer, air box etc. it was just straight TB. it ran like crap. would hardly idle, bogged & turned on my ses light. imo i'd leave the intake system on. it'd be nice to get some good numbers without a belt tho. maybe try it with/without intake system & see if there's a difference...

        --matt

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        • #5
          I think thats because you disconnected your IAT sensor....I think thats the one. If not the sensor that goes on the silencer. I tried that at the track and the car ran like crap. Plugged it back up and problem solved.
          <a href=\"http://www.cardomain.com/id/y87inside\" target=\"_blank\">http://www.cardomain.com/id/y87inside</a>

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          • #6
            Don't run no belt. If you do that your water pump won't turn and you will overheat.
            Keith - Chicago<br /><a href=\"http://www.hptuners.com\" target=\"_blank\">HP Tuners - PCM Reprogramming</a><br /><a href=\"http://www.dxsoftware.com/magnus/\" target=\"_blank\">97 Firebird V6 to LS1 swap</a><br /><b>V8 9.967@132.78</b> 1.322 60\' NA Heads/Cam<br /><b>V8 10.295@128.48</b> 1.363 60\' NA Cam Only<br /><b>V8 10.987@119.31</b> 1.422 60\' NA Stock Internals<br /><b>V6 13.674@98.22</b> NA<br /><b>V6 12.394@104.91</b> N20 100HP

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            • #7
              <blockquote>quote:</font><hr>Originally posted by Magnus:
              Don't run no belt. If you do that your water pump won't turn and you will overheat.<hr></blockquote>

              yeah we know, but he will get an awesome time before he cracks his heads.
              ;)
              6s.......under the hood or under the belt, they just dont cut it.

              Comment

              • #8
                my iat sensor was connected, but sorta just dangling beside the TB :D

                maybe you could ghetto rig a belt just so that you're running the water pump, but nothing else.?

                --matt

                Comment

                • #9
                  <blockquote>quote:</font><hr>Originally posted by Magnus:
                  Don't run no belt. If you do that your water pump won't turn and you will overheat.<hr></blockquote> If you decide to drive it around town like that, yes. Running the engine for 30 seconds, half that under load...no.

                  The most serious of all drag racers run no cooling system at all. They have run times up to two minutes. Plenty of time to stage.
                  <b>15.41</b> @ 89.80 & 15.45 @ <b>91.64</b>, 2.21 60ft, 3,440 raceweight, using <b>OEM</b> Equipment. <br />\'98 L67/M49 w/ 134,000 miles before spun bearing. \"<i>It\'s all stock, Baby</i>!\"

                  Comment

                  • #10
                    the serious drag racers that run w/o a cooling system are normally blown alcohol motors, they can do that because alcohol doesnt run as hot as a gas motor does and they normally have lots of time to let it all cool back down, there are very VERY few race motors that run gasoline w/o a cooling system, when running alcohol the EGT's need to be around 1050-1100 degrees at the end of a quarter and gas motors run at 1275-1300 degrees...
                    <b>Black</b> 1998 Pontiac <i>Firebird</i> A-4 swap<br />271.4rwhp/259.4rwtq NA<br />13.30@102.44 <br /><a href=\"http://www.freewebs.com/wickedsix98\" target=\"_blank\">www.freewebs.com/wickedsix98</a>

                    Comment

                    • #11
                      I just got back from the track. I didn't have the nuts to remove my belt. I was too scared it would overheat.

                      I did make a 13.99 pass, on a 35 shot of n2o. I will explain in the n2o forum
                      1999 red camaro v6 M5: with a turbo<br />13.52@107.99<br />No, seriously: Who Farted? <br /><a href=\"http://www.cardomain.com/memberpage/600086\" target=\"_blank\">http://www.cardomain.com/memberpage/600086</a>

                      Comment

                      • #12
                        Don't do it, I tried it a couple times in my test backroad, form dead cool stop to running no belt, the car idles not too bad but once you put it under load the temp skyrockets, Mine was getting close to read towards the top of 3rd gear. It makes a difference but not a huge one, maybe 1/10th. ANd you will not make it even to the booth were you get your timeslip, maybe might be able to get one pass with it but I doubt would not risk it.

                        I woudl just try too figure out how ot make a electric water pump.

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