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  1. #1

    Default How do I knock off that extra tenth?

    I ran a 10.13 a few weeks back. So now I need to knock off that tenth and be in the 9s.

    Any suggestions? I'm switching to 28" slick. Theyre hand me downs. I can afford new anything.

    My 60' sucked. Was only doing 1.61s. Last year it was 1.50s. I took out some weight since last year. Added Viking coilovers and a mwc dragbar. I would think the car should pull 1.40s on motor.

    94 Camaro Z28 383ci AI Heads LE Cam 4L60E Stock 10 Bolt
    Personal Best 10.72 N/A 10.13 NO2

  2. #2
    10 Second N/A Club


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    1/10th would put you at 10.03! jk What gear tire combo do you have now and at what weight? Playing with coilovers could help taht 1.6 60' is deffinatly an area that could be improved. I'm sure you know 1/10 at 10.00's is a lot harder than 1/10th at 13.00's! I see your running NO2, a little more never hurts!!
    -Josh
    co-owner of BDBRacing.com
    NMCA OC 9004
    96, N/A 385, Holley EFI, Faceplated M6, AI TFS heads, LE SR cam, MWC Fab 9
    10.16 @ 136 1.50 60'........still workin on that 60' shootin for 1.4's!

  3. #3

    Default How do I knock off that extra tenth?

    Quote Originally Posted by 96LT1355Z28 View Post
    1/10th would put you at 10.03! jk What gear tire combo do you have now and at what weight? Playing with coilovers could help taht 1.6 60' is deffinatly an area that could be improved. I'm sure you know 1/10 at 10.00's is a lot harder than 1/10th at 13.00's! I see your running NO2, a little more never hurts!!
    Lol you know what I mean!

    3:73 26" tires w/4l60e. I was in the red around 7k through the traps. So I have some 28s give to me.

    The coilovers are set up like Viking guy recommended. I'm not sure on how to adjust while at the track.

    94 Camaro Z28 383ci AI Heads LE Cam 4L60E Stock 10 Bolt
    Personal Best 10.72 N/A 10.13 NO2

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    For shock settings the best thing to do is film the car launching and them watch the suspension move as it launches. It's amazing how much a tire will flatten and your rear end will move in slow motion as well as the amount of movement in the front end. It all happens so fast it's hard to do in real time just by watching and impossible to do from the driver seat. It will also help to make sure your ARB is loaded correctly. You could use an online calculator to determine trap speed/rpm if you switch to 28's, depending on your peak power they might help or hurt you.
    -Josh
    co-owner of BDBRacing.com
    NMCA OC 9004
    96, N/A 385, Holley EFI, Faceplated M6, AI TFS heads, LE SR cam, MWC Fab 9
    10.16 @ 136 1.50 60'........still workin on that 60' shootin for 1.4's!

  5. #5
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    Default

    28s should help on 60ft alot. How much spray and what did your 1/8 mile times look like. What tq arm and lca setting.
    94 trans am forged 355, le 21* trickflows, le cam, a4 3800 stall

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    3.73S and 28s with nitrous with around 7000 rpm cap sshould net a 140 mph trap give or take depending on the converter slippage

    Going from 26s to.28s will loosen that converter a bit

    You made a good move going to 28s with the spray

    The extra sidewall will help but like i.told you, your rear shocks are very important.

    Hope you get your 9 sec pass!

    If it doesn't hook up, id play with tire psi Then start playing wirh the progressive.

  7. #7

    Default

    Quote Originally Posted by dawdaw View Post
    3.73S and 28s with nitrous with around 7000 rpm cap sshould net a 140 mph trap give or take depending on the converter slippage

    Going from 26s to.28s will loosen that converter a bit

    You made a good move going to 28s with the spray

    The extra sidewall will help but like i.told you, your rear shocks are very important.

    Hope you get your 9 sec pass!

    If it doesn't hook up, id play with tire psi Then start playing wirh the progressive.
    Thanks man. I hope so too. I looked at rear coilovers conversion. Expensive. I may just have to do da rear shocks next year.

    I'm nervous about tire growth. I don't want to cut those 28s.

    94 Camaro Z28 383ci AI Heads LE Cam 4L60E Stock 10 Bolt
    Personal Best 10.72 N/A 10.13 NO2

  8. #8

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    Quote Originally Posted by TravisMcGill2000 View Post
    28s should help on 60ft alot. How much spray and what did your 1/8 mile times look like. What tq arm and lca setting.
    150 shot. Ran 6.55 @ 107.

    Has non adjustable lcas and an Alston TA.

    I've always set pinion angle at -4 til this year. I swapped rears da and went with a -2.

    94 Camaro Z28 383ci AI Heads LE Cam 4L60E Stock 10 Bolt
    Personal Best 10.72 N/A 10.13 NO2

  9. #9
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    Quote Originally Posted by Jayz28 View Post
    Thanks man. I hope so too. I looked at rear coilovers conversion. Expensive. I may just have to do da rear shocks next year.

    I'm nervous about tire growth. I don't want to cut those 28s.

    If the shocks are soft in the rear on the compression and allows the body to squat on the axle, it very well might .



    If youre on a budget id suggest comp engineering 3 ways. There dirt cheap and have been in the 1.3 sixties on radials. Granted it'd be nice to see ya on a double adjustable but if your hell bent on saving money try them. Mine went 1.42 on the comps on radials,

  10. #10
    LTX Master


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    I 60ft 1.4s with a best of 1.44. I'm still running stock original springs and shocks in the rear.
    Last edited by Mystery Bird; 12-07-2015 at 10:02 AM.
    1995 TA: Converted Nose...381 LT1...4L80E...Moser 12 bolt...Edge TC...
    Best 1/4 10.71 @126, 1.46 60ft, 3450lbs
    http://www.youtube.com/user/MysteryBird1?feature=watch

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