Pontiac GTO 2004-2006 The Modern Goat

Launching gto on slicks

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Old 05-02-2012, 01:15 AM
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Default Launching gto on slicks

Anyone have any tips on launching a gto on some sticky tires. This is my first IRS car. Trying to figure out the best way to launch with stock clutch and IRS without breaking. Any tips would be appreciated
Old 05-02-2012, 08:26 AM
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Street tyre work best holding the revs at 3,000rpm and sliding the clutch.
With sticky tyres I would suggest trying the same somewhere between 5 & 6,000rpm.
Old 05-02-2012, 09:49 AM
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I swapped out my a4 for a 3 speed manual and can not wait to try it out for the first time....been working on the car for the last 5 months, and hope to be finished and fire it up again by the end of this month
Old 05-02-2012, 09:56 AM
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I'm going to Houston to Get my Drag Radials on Saturday. You really think 5k rpm launch on stock suspension and clutch is wise?
Old 05-02-2012, 01:48 PM
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I used to launch mine at about 6k. Would net high 1.6 60's. Would have probably dipped to low 1.6's but (at the time) slipping a Monster Clutch is hard lol
Old 05-02-2012, 09:09 PM
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I was to scared to break my half shafts with a stock suspension, trying to look for after market 9'', never know
Old 05-03-2012, 12:30 PM
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You're going to break stuff drag racing. Period.

You can buy a bolt in IRS 9"
If you want a SRA, its going to have to be a custom job.
Old 05-03-2012, 01:11 PM
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I picked up a 9" strait axle for $80, dropped in 4.56 gears, backhalf with 4 link, and 15x18.5 wheels with 31-18.5 15 tires.....once these are wore out I'll step up to a 33-21.5 15 tire.

I should have no problem dead hooking, but we will see lol
Old 05-03-2012, 03:20 PM
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If you want a SRA, its going to have to be a custom job.[/QUOTE]

moser sells a conversion kit kinda pricey
Old 05-04-2012, 09:06 AM
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when i first went to slicks on ym TA i remember trying 3k dumps, and it would bog, then 4k, then 5k, then 6k... was so nervous..

i eventually used a two step/studder box at 6000 rpm's side stepping the clutch. it was a nerracking at first but then became FUN.

pretty sure the IRS would not like that. but anything less will be a bog, and require a clutch slip.
Old 05-04-2012, 10:36 AM
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f you have deep pockets you can get gforce1320 axles and stubs, or driveshaft shops axle and stub kit.
Old 05-04-2012, 11:31 AM
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I do not lol. Trying to stay stock clutch and rear. Let's keep the talks about gtos guys.
Old 05-04-2012, 11:40 AM
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I do not lol. Trying to stay stock clutch and rear. Let's keep the talks about gtos guys.
Old 05-04-2012, 02:12 PM
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I seriously doubt with the stock clutch you'll need to worry about breaking things launching hard on slicks. I can just about guarantee it will be slipping before anything breaks.
Old 05-04-2012, 02:52 PM
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im hoping
Old 05-04-2012, 03:37 PM
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I will start by saying I dont race at the track alot.

--Glenn

Last edited by Glenn B; 05-04-2012 at 04:34 PM. Reason: misleading information
Old 05-04-2012, 03:58 PM
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No. You got more wheelhop because an NT01 is not a DR. Its a stiff sidewall, soft compound road racing tire.

You want to get rid of wheel hop? Dont waste your money on bushings and axles etc.....get 100% traction and its gone. Period.
Now the upgraded driveline parts are definitely worth it if you're making power and dont want to worry so much about breaking.

Should have ended that at "let me start by saying I dont race at the track alot" lol
Old 05-05-2012, 02:58 AM
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Yessir took mine tonight on the et streets no wheel hop cuz all traction. Very first pass dumped/minimal slip at 4700 1.8 60 8.2 1/8 and then missed fourth I think that was my 12.8 or .7. Ended up going 13.1 at 103. Hot lapped it. Launched at 4200 bogged a bit. 1.9 60 foot. Baby shifting not trying to miss a gear. Went 13.06 at 110. then rain came. My question is do you guys think I can get a 12.6 to 7? Also do these passes seem slow for a full weight stock clutch Cammed 3.91 geared six speed? I raced my buddy's z28 on the way home from a 40 roll and it was neck and neck until traffic. He went 12.6@117. So it seems to run good from a roll. I was just hoping for more trap than 110. Could my clutch be holding me back?
Old 05-05-2012, 09:47 PM
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Holding back in driving always netted me less than optimum results in a GTO. A 1.8 60' and a harsh driving style should net 12.80 or better.
Old 05-06-2012, 01:59 AM
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I'll be going back Wednesday continuing my quest for 12s


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