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Fastest Convertibles Whats Your Times?

This is a discussion on Fastest Convertibles Whats Your Times? within the Convertible forums, part of the Vehicle Specific category; Originally Posted by chevy1966 New times as of last night. 1.84 60' 8.06 1/8 @ 83.xx mph 12.65 1/4 @ ...

  1. #41
    Moderator Firebirdjones's Avatar
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    Quote Originally Posted by chevy1966 View Post
    New times as of last night.
    1.84 60'
    8.06 1/8 @ 83.xx mph
    12.65 1/4 @ 108.xx mph
    Still tuning for more.
    Looks like you picked it up some more. What have you tinkered with since last time???

    I have the Fuddle 3,400 converter on the way. Frost helped me with my MAF tables which I had a little too fat,,,oooops. Leaning the car out picked it up quite a bit,,,feels better.

    I'm going to the track again just to try it,,,,then the converter will go in.

  2. #42
    retired racer not 4 long chevy1966's Avatar
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    red white
    1999 z28 vert 1998 z28 ht

    Firebird, I have a friend that really knows his EFI live. He has been tinkering with the mail order tune I have. Other than that, I installed an LS6 intake, 15 X 3.5 inch fronts, 15 X 10 backs, and installed Aerospace Componet disc brakes on all corners. Just the brakes & intake picked it up .25

  3. #43
    Moderator Firebirdjones's Avatar
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    Quote Originally Posted by chevy1966 View Post
    Firebird, I have a friend that really knows his EFI live. He has been tinkering with the mail order tune I have. Other than that, I installed an LS6 intake, 15 X 3.5 inch fronts, 15 X 10 backs, and installed Aerospace Componet disc brakes on all corners. Just the brakes & intake picked it up .25
    Thats cool. I'm sure those lighter 15 inch wheels helped as well,,,,less unsprung weight.

    I'm still learning HPtuner, and with help from Frost I'm getting there. Even my tune is not perfect yet. I need to get the wideband on it and see where the A/F ratio as at WOT. Might be some ET left in it yet

    I'm thinking the converter alone should put me in the high 12's. I'll find out soon.

  4. #44
    retired racer not 4 long chevy1966's Avatar
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    red white
    1999 z28 vert 1998 z28 ht

    Convertor will get you 4 to 5 tenths easy, at least it did on mine. You will love it then. I have installed a Zeks 125 wet kit on mine, but have not sprayed it yet. Hopefully this weekend I will be able to do so. I will post when I make a NOS run. Next, I have my AFR 205's & Comp Cam 224/230 581/592, and Mac mids with ORY, will be my next project. I am doing this as a science experiment, trying to see what actually gave the car the most power. I guess finally will be a 12 bolt or 9 inch with 3.73 gears.

  5. #45
    Moderator Firebirdjones's Avatar
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    Quote Originally Posted by chevy1966 View Post
    Convertor will get you 4 to 5 tenths easy, at least it did on mine. You will love it then. I have installed a Zeks 125 wet kit on mine, but have not sprayed it yet. Hopefully this weekend I will be able to do so. I will post when I make a NOS run. Next, I have my AFR 205's & Comp Cam 224/230 581/592, and Mac mids with ORY, will be my next project. I am doing this as a science experiment, trying to see what actually gave the car the most power. I guess finally will be a 12 bolt or 9 inch with 3.73 gears.
    What a coincidence....I have been experimenting with mine for over a year, to see what works and what don't.

  6. #46
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    2007 Cadillac Escalade
    98 Camaro SS, 09 G8 GT

    Ran my new car for the first time 2 weeks ago....With lid, flowmaster, and ported MAF ends I pulled a 13.48 @ 102.78 with a 2.011 60' on Kumho Supra 712's...not to bad for a 91K mile engine
    1998 Sebring Silver Camaro SS Convertible
    Cammed, Geared, Stalled and soon to be blown via F1-C
    2009 Stryker Blue Pontiac G8 GT
    Kook's 1 7/8's LTH's and catted X, Pypes A/B, Vararam, Tune
    2007 Black Raven Cadillac Escalade
    Vararam, Leveling Kit, 33's

  7. #47
    retired racer not 4 long chevy1966's Avatar
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    red white
    1999 z28 vert 1998 z28 ht

    That is a good run Deezl. My car has 85k on it as of right now. I am hoping by the time my science experiment is over, she will be in the 10's.

  8. #48
    retired racer not 4 long chevy1966's Avatar
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    red white
    1999 z28 vert 1998 z28 ht

    New time with 125 shot.
    1.74 60' rolling out before squeeze
    7.38 1/8
    11.58 1/4
    I was kinda happy with this result.

  9. #49
    Junior Member sjones69's Avatar
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    RED
    1998 Trans Am, A4

    I have most of the free mods, haven't P&P yet. SLP LM II cat backs, shift kit, 2100 stall.
    1st time EVER at the track
    2.28 60'
    13.9 @ 101 mph

    On street tires.
    Since have added 275/40-17 fronts w/nitto's, 315/35R17 rears w/nitto DR.

    Replaced 2100 for a 2800 stall and put 3.73 gears in it. I have to have it tuned and speedo reset. Hoping to hit the track in the next few weeks.
    I'll post the new times once I get back.
    Definetly sounds healthier with the gears. Just got it back, have to get on it yet.

  10. #50
    retired racer not 4 long chevy1966's Avatar
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    red white
    1999 z28 vert 1998 z28 ht

    Car is seriously under the knife at this time. Complete H/C package afr205, comp cam. Moser 9" with 3:73 Detroit Locker, Nelson built 4L60e with 3600 stall convertor, & new 2 stage Zex's kit. Hope to have completed by end of August or first of September. Will post pics of progress as time allows if any interest. Hope to have it tuned by October for our local big show, Cruisin the Coast.

  11. #51
    Line 'em up sg5492's Avatar
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    Black
    99 SS Camaro Convertible

    My 99 SS on the stock Goodyears


    60'-2.107
    1/8-8.672 @83.42
    1000-11.215
    1/4-13.37@104.76

    All I have done to is
    lid
    granatelli MAF
    SLP LM 1
    Y pipe

  12. #52
    retired racer not 4 long chevy1966's Avatar
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    red white
    1999 z28 vert 1998 z28 ht

    That is a good pass. Mine is still in the reconstruction phase, but before it spun a bearing, I got an 11.22 out of it.

  13. #53
    Line 'em up sg5492's Avatar
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    Black
    99 SS Camaro Convertible

    11.22 That is a great pass!!! What all did you have in mods? I would like to get a 12.80 out of mine.

  14. #54
    Senior Member SS02's Avatar
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    Quote Originally Posted by chevy1966 View Post
    Just curious as I am trying to build my convertible now. What kinda track times or dyno numbers are you putting up. And lastly, what your combos. Help a brother out!
    I cannot help U! Wish I could...

    T-tops 02 SS, and still learning my stuff. Paid for my mods back when
    I was not broke... Now trying to learn to more myself, to do more!!!

  15. #55
    Senior Member SS02's Avatar
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    Quote Originally Posted by sg5492 View Post
    My 99 SS on the stock Goodyears


    60'-2.107
    1/8-8.672 @83.42
    1000-11.215
    1/4-13.37@104.76

    All I have done to is
    lid
    granatelli MAF
    SLP LM 1
    Y pipe
    I think that is a good time for those mods... tires????
    Mine would get much better launches with drag tires... but I like the turns 2!

    So still burning up my Good Yrs... new tires on the front. New backs next spring, for me.

    Peace Out!

  16. #56
    retired racer not 4 long chevy1966's Avatar
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    red white
    1999 z28 vert 1998 z28 ht

    Quote Originally Posted by sg5492 View Post
    11.22 That is a great pass!!! What all did you have in mods? I would like to get a 12.80 out of mine.
    Was running stock 85000 mile shortblock, but with afr 205 heads, comp cam, mac mid length hedders w ory, 3600 convertor, ls6 intake w/p&p tb, nelson built 4l60e, & 9" w/3.73 gears on M/T drag radials with a small 75 shot. It ran 11.22 @ 124 mph with 1.48 60' time. I was very happy until it shuttered & spun the rod bearing.

  17. #57
    Moderator Firebirdjones's Avatar
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    Man that hurts after all that work,,,but it's a great excuse to go faster

    I have my tune squared away, about as good as I can make it. It feels stronger up top with the AFR corrected now. I ordered a trans cooler the other day to compliment the new 3,400 stall.

    Once the cooler is in I'll hit the track and report back. Should be able to better my last time of 13.20 at 106 mph with just headers and off road Y-pipe, at a 3,820 lbs. race weight no less.
    Probably a tad lighter now that I took that balloon of a converter out and switched to this little 9.5 incher

  18. #58
    retired racer not 4 long chevy1966's Avatar
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    red white
    1999 z28 vert 1998 z28 ht

    Yea Firebird, it will probrobly be next Febuary or March before I get it running again. I am still debating which engine route I will be taking. Thinking of new LS3 based 418 with ported L92 heads.

  19. #59
    Still The Junior Member RedVertTA's Avatar
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    Red+White Top and Stripes
    2000TransAmConvertible A4

    Weight

    Any of you guys having trouble with weight?

    What have some of you done to cope with it?
    FAST 90/90, SLP Lid, Kooks JetHot Coated LT's, American Racing Y-Pipe+Magnaflow Cats, DHM Electric Cutout, Flowmaster American Thunder Catback, HP Tuners Software, 343 rwhp.

    BMR Convertible Subframe Connectors, Hotchkis Strut Tower Brace, BMR Driveshaft Safety Loop.

  20. #60
    Make real real sure Johns00Z28's Avatar
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    Quote Originally Posted by chevy1966 View Post
    Yea Firebird, it will probrobly be next Febuary or March before I get it running again. I am still debating which engine route I will be taking. Thinking of new LS3 based 418 with ported L92 heads.
    How much will that combo set you back? Is it compatible w/ our computer?

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