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  1. #1
    Member myk02k's Avatar
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    Black
    2002 Camaro Z28 6-spd

    Want to run 12's...need advice

    Hey guys I really want to get my car into the 12's before I hit up the drag strip 1st. I have a few things though that I'm concerned in modifying. #1 is the want to keep good gas mileage, #2 is to keep the car as street-legal as possible, #3 is not to touch the trans cuz of all the work that has been done with it and the warranty I have on it, and #4 is no DR's or NOS cuz if it runs 12's I want it to run 12's on the street

    Here's the specs of my car and what's been done:

    '00 Z28 3.23's A4 w/ Y3F kit (a little more weight I guess?) 70k miles
    K&N FIPK, plastic MAF ends, TB coolant bypass, GMS wires, Hooker cat-back, PHB, LCA, SFC, STB

    And the new trans...
    4L60E remanufactured
    -New boost valve and sleeve are installed in the transmission pump
    -the low/reverse checkball is removed
    -Modified pump slide with spacer
    -TCC Control Valve, TCC Regulator valve and the Actuator Feed
    Limit are replaced and the bores are reamed
    -The forward and reverse abuse plugs in the valve body are replaced
    -New Pressure Switch Manifold
    -New Pressure Contol Selonoids
    -The latest design sun shell is installed.
    -The return springs in the 3-4 clutch are removed and the exhaust
    port in the separator plate is enlarged
    -The torque converter is remanufactured using a state-of-the-art
    converter aligner/welder
    -High energy 2-4 band is used
    -High energy 3-4 clutch pack and increased lined clutch and steel
    plates (from 6 to 7)
    -Aluminum 1-2 accumulator pistons
    -All new pump and case bushings

    I went for a "Class 1" upgrade, which I think consisted of Alto clutch packs, servo & beast shell larger than the Corvettes, and other things I don't remember. It'll shift HARD, usually ripping my tires between 1-2 on 50+% throttle and WOT it'll smoke em.

    I put the ends on assuming it would help with the backfire on deceleration. The car pops like hell if I rev it to redline and then let off. I think I'm going to invest in something like EFI Live 2 or HPTuners. Another alarming thing I noticed was blow-by on just #7 cylinder.
    Last edited by myk02k; 04-08-2007 at 12:12 PM.

  2. #2
    Slow'er'Ass Mr. Luos's Avatar
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    Red Tint Jewelcoat
    2008 Trailblazer SS

    Will a stall converter mess with the warrenty??
    Because you need one.

  3. #3
    Member myk02k's Avatar
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    2002 Camaro Z28 6-spd

    Quote Originally Posted by Mr. Luos View Post
    Will a stall converter mess with the warrenty??
    Because you need one.
    that's gonna have to wait for 2 more years....they put seals around the trans so if it's been modified they'd know

  4. #4
    Slow'er'Ass Mr. Luos's Avatar
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    Red Tint Jewelcoat
    2008 Trailblazer SS

    Headers for sure.
    Although running on street tires is going to get you. Traction may be an issue.
    The stall is the biggest thing though. I bet a stall alone would get you very close once you learned how well your street tires grab at the strip.

  5. #5
    Member myk02k's Avatar
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    2002 Camaro Z28 6-spd

    I hear you on the headers, might as well go w/ high-flo cats and a new Y then....other than the TC, what could I do to get to 12's?

    I'm thinking maybe LS6 intake & UD pulleys? Would a LS6 cam be worth it/gas decrease?

  6. #6
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    Quote Originally Posted by myk02k View Post

    I'm thinking maybe LS6 intake & UD pulleys? Would a LS6 cam be worth it/gas decrease?
    LS6 intake and UD pulleys are a good idea. But the LS6 cam isn't worth it in my opinion. Probably 10-15rwhp. Hardy worth the effort to swap a cam. If you want a cam - GO BIGGER!!

  7. #7
    JUISSED Midnight02's Avatar
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    Navy Blue Metallic
    2002 Camaro SS

    LS6 intake and a pulley swap would be a nice start. You can squeeze a little more by porting the stock throttle body and the bump stop mod. Get yourself a good tune and hope you can find traction on the stock tires.

    Otherwise, a gear swap, a street friendly set of drag radials (I love the Nitto 555R once it gets warm) and finally a TC should get you well into the 12's.

  8. #8
    Slower Than a 3rd Gen juiced99ws6's Avatar
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    Mystic Teal
    99 Trans Am & 01 CBR 929

    get a nice 224/224 cam. shouldnt hurt your gas mileage to much.. also the LS6 intake, headers, and lid

  9. #9
    Just another Joe Eagle's Avatar
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    Pewter
    2002 WS6

    I've got just 1 link for you:

    http://www.harrisspeedworks.com

  10. #10
    The Bandit Wesman's Avatar
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    SGM
    1998 Trans Am WS6

    Here's what I would do. All these mods will give you more power, better efficiency, better sound, and better fuel economy. Can't beat that for a street driven car.

    LS6 Intake Manifold
    Long Tube Headers
    Underdrive Pulleys
    True Dual 2.5" Exhaust
    ECU Tune

    That should get you mid-high 12's no problem.

    If you want more upgrades, go with a stall converter and 3.73 gears. However, both will decrease fuel economy by a few MPG, and the stall will change street driveability. You will of course go faster though

  11. #11
    Member kams95ss's Avatar
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    Black
    1998 Pontiac Trans Am

    Some guy around here has A4 camaro and ran a 12.4 with just a lid,cutout,tune,and dr's

  12. #12
    Member kams95ss's Avatar
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    1998 Pontiac Trans Am

    no stall stock motor and stock exhaust

  13. #13
    The Bandit Wesman's Avatar
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    SGM
    1998 Trans Am WS6

    Quote Originally Posted by kams95ss View Post
    Some guy around here has A4 camaro and ran a 12.4 with just a lid,cutout,tune,and dr's
    I find that very hard to believe...if he had a big stall, that would be a different story.

  14. #14
    Visualize°Design°Create SSwt00SS's Avatar
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    '18 CTS-V
    '13 ZL1

    guys he is in CA, so LT's/ORY might be out of the question. I agree, a cam around 224 duration, lid, U/D pulley, and an Ls6 intake, and some drag radials might do the trick...

    other than that, i would suggest 3.373's for the rear...

  15. #15
    Senior Member INMY01TA's Avatar
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    2001 Trans Am (sold)

    Life's to short to worry about warranty. Get a stall!

  16. #16
    Junior Member
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    1999 Camaro SS

    Gears, 3.73's, lid, ported t/b, LS6 intake....and drag radials... you will be fine...

  17. #17
    Member kams95ss's Avatar
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    1998 Pontiac Trans Am

    He's on ls1tech I thinks his name is dadsz28 or dadscamaro. 12.4 no stall stock motor and exhaust all he has is dr's,tune,lid,and cutout

  18. #18
    Member kams95ss's Avatar
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    1998 Pontiac Trans Am

    Don't hate cuz it takes you 200 mods to get into the 12's I don't know what is it but alot of guys on here Have all the mods in the world and can't get lower than a 12.6 or 12.8? Let alone some guys in here that post there stock times are pretty high I always see sigs sayin 13.8,13.9, or 13.6 bone stock! I'm not trying to say I have the fastest f body I'm far from that and i'm not tryin to say that I'm a F-body wizard or a great driver but somethings gotta give. I run 12.7's all day with lid,tsp rumbler, and dr's. When I go to the track I see alot of f-bodies running slow numbers with no traction issue or anything of that matter, maybe some cars have and some don't I guess.

  19. #19
    Member NiteRiderWs6's Avatar
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    THE WS6 THAT COULD
    Quote Originally Posted by kams95ss View Post
    He's on ls1tech I thinks his name is dadsz28 or dadscamaro. 12.4 no stall stock motor and exhaust all he has is dr's,tune,lid,and cutout
    i belive it...its not about the all the mods you have its how good you can drive the car

  20. #20
    Member
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    NBM
    1998Z28

    Quote Originally Posted by NiteRiderWs6 View Post
    i belive it...its not about the all the mods you have its how good you can drive the car
    You need to go to your local Dragstrip on Test & Tune day and practice.By the way drag radials are street legal and anybody on here with a tricked out
    F-body has to run them. If I put regular street tire on my ride what time the car isn't melting them I would be sideways and the car would be totally undrivable on the street.

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