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Thread: 6.0/80mm Foxbody

  1. #11
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    Quote Originally Posted by bangbangskeetskeet View Post
    According to all the calculators I have used with 750rwhp you will hit 9.368291017512504 @ 145.496120632034mph. From what youre saying his "mid 9's" run at 145mph was done on 18psi...not sure what the mid 9's are, but one would think that you will make more HP with a little more boost. On 19psi he ran 9.38 @ 147, but it made 750rwhp on 16psi and that will give you a faster ET according to the calculators?????.....it just appears that the numbers from the dynapack are a little high, if he made 750 to the wheels at 16psi, then he should be running a tad bit faster on 18 or 19psi one would think.
    Just talked to David "owner" and he said the only time he ran it on 16psi was a TAD and it went 10.3 @ 143mph. He was on radials and had a shitty 2.0 60ft. Track was really bad that night and this was the first time out in the car. After that he turned the boost up to 18psi.

    Calculator says for 143mph it should be around 712rwhp. Can't really say how a shitty 60ft and spinning down the track would affect MPH on that particular run but Im sure the mph is off a bit. Too bad he never ran a clean pass on 16psi..

    At the weight of his car to gain 1mph it takes 16-17rwhp.
    Last edited by DBRODS; 06-28-2011 at 01:33 PM.

  2. #12
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    Still looks like the dynapack is a little high. The numbers from the dynapack at 16psi say he should be running 9.36 @145.xxx and he said he ran almost a full second slower than that on 16psi? Just saying that the numbers appear to be a touch high. Even if the track prep was bad and the MPH was skewed because of that its still not measuring up to the numbers it made on the dynapack. Like you said the 143mph takes 712rwhp, so even assuming the MPH was high that run due to wheel spin that makes the rwhp for that run also high. So one is safe to believe that on 16psi the car doesnt make more than 700rwhp. Maybe it does on 19psi?
    T-RAV
    99 GMC | 5.3 | Skinny White Guy Tuned

  3. #13
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    Quote Originally Posted by bangbangskeetskeet View Post
    Still looks like the dynapack is a little high. The numbers from the dynapack at 16psi say he should be running 9.36 @145.xxx and he said he ran almost a full second slower than that on 16psi? Just saying that the numbers appear to be a touch high. Even if the track prep was bad and the MPH was skewed because of that its still not measuring up to the numbers it made on the dynapack. Like you said the 143mph takes 712rwhp, so even assuming the MPH was high that run due to wheel spin that makes the rwhp for that run also high. So one is safe to believe that on 16psi the car doesnt make more than 700rwhp. Maybe it does on 19psi?
    You can base rwhp off MPH. ET comes with a dialed in setup, good 60ft, good prep, good gearing, all that affects ET.

    Lets use example #2.. the 383LTX car. It weights 3620 and has a dialed in setup with many track outings. It dyno'd 701rwhp on the same dynapak. Then later ran 10.3 @ 135.2mph. Calculator shows at that weight and rwhp it should go 10.06 @ 135.3. Keep in mind its a 6speed manual car. I'd say its pretty damn accurate.

    The calculator shows 698.2rwhp.. 2.8rhwp difference and .1 mph.
    Last edited by DBRODS; 06-28-2011 at 01:50 PM.

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