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Thread: Firebird 3-20

  1. #21
    Senior Member 04WhininCobra's Avatar
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    111 mph. the 60 ft is what really kills me. i was just worried to about breaking something cause im broke right now. my 60 was 2.36 ha.
    2004 Comp. Orange Cobra - 460 rwhp 495 rwtq

  2. #22
    Member 99_venom's Avatar
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    Nov 2006
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    My best was a 12.01 on a hot lap. Got there and ran right away. It was pulling good but like an idiot I left the seat way back so my arm was straight out in third. I actually pulled it out of third just after I shifted. Threw it into fourth and ran a 12.7. That's why I did the hot lap for the 12.01.

    Then I let is sit until the sun went down and let it completely cool off. I switched the tune to add 3 degrees of timing and put in a fresh bottle. Sat in the staging lines while they prepped the track so I figured I was just going to lay into off the line. I usually just ease into it off the line because of the IRS. Well I staged and kicked the revs up, on the last yellow I dummped it and it pretty much just sat there. I thought at first I spun, but then the wonderful wiff of burnt clutch came up through the car. So I ran it on down the track for a 14 second run and drove it home.

    I have hated that clutch ever since it was put in. It was a McCleod that SVC put in years ago and it never has felt good. I had a nice centerforce dual friction in there and SVC dropped it while putting my aluminum flywheel in and I ended up with this piece of junk.

    I guess now it is time to go back to a Spec clutch. I am thinking Spec Stage 3 since it is not a daily driver.

    Over all I was pleased with the car's performance, a 12.01 on a granny shifted hot lap when it was still warm out on a half full bottle. I think I would have had a pretty good run if the clutch hadn't taken a crap.
    '11 Mustang 5.0 GT Premium Convertable
    '99 Cobra Coupe #582 of 4040 11.93@ 118.06
    '00 Lightning #4265 of 4966 10.71 @ 126.8
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    '71 Mustang Coupe 351C - the next project

  3. #23
    Senior Member IMSHAKN's Avatar
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    I ran a could 12.9s with a best 60 of the night a 1.69. The mph was 4-5 mph low every run.

    First run of the night went horribly as there was a lack of communication at the burnout box resulting in me doing a poor burnout and me being all frustrated I screwed up on the launch. I went ahead and kept things the same for the next run and when I dumped the clutch at 6500 the car dead hooked resulting in a slight bog, but still brought me a 12.96 @ 103mph with a1.69 60' time.

    I then made the mistake of deciding that I should explore some different air pressures in the slicks and went from the 15 psi I was running to 12 psi with no other adjustments. Ran and the front of the car was bouncing up and down a couple times during the launch and the tires broke free for a second. Decided that I needed to firm up the suspension. The rest of the runs were 12.9s with 1.73ish 60' times. The car felt stronger, but it just wasn't there on the launches as at 12 psi I started turning the slicks on the wheels.
    ~Andrew

  4. #24
    Senior Member wickedcobra's Avatar
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    All I will say is its a whole lot harder than it seems. I cant wait to get out there again.

  5. #25
    Senior Member 04WhininCobra's Avatar
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    i definitely want to go back out before its gets too hot. im dying to get into the 12s.
    2004 Comp. Orange Cobra - 460 rwhp 495 rwtq

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