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Thread: 3.2 V6 Launch Control?

  1. #11
    Join Date
    Apr 2008
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    Sydney
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    141

    Quote Originally Posted by 3Putt View Post
    OK boys, you're really startin to make me jealous now!

    It looks like LC is definitely not on my car, so tell me, how much fun is it?

    I've found some talk about LC 'upgrades' on the forums. VWofAmerica has put a tech service bulletin out for some Jetta's, Golfs that enables LC.
    Meh. I used it once just to see what it was like. Yeah, it did the job but I haven't even thought of using it since. What surprised me when I did it was once you take your foot off the brake, it felt like about a 2 second pause (I don't know exactly how long it was but it felt like an eternity when you're expecting to get thrown into the back of your seat..) before it took off.

    However, I used it when it was 1500km's and in pouring rain (it almost rained non-stop from the day I picked it up to the 1500km point when I said I would give it a shot). Absolutely no noticeable wheelspin and took off like a rocket.

    If you're going to take it to the strip, it'd be something you'd have to compensate for - letting the brake off a little earlier before the tree goes green.

  2. #12
    Join Date
    Aug 2008
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    Bentleigh
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    35
    Quote Originally Posted by Purgi View Post
    Meh. I used it once just to see what it was like. Yeah, it did the job but I haven't even thought of using it since. What surprised me when I did it was once you take your foot off the brake, it felt like about a 2 second pause (I don't know exactly how long it was but it felt like an eternity when you're expecting to get thrown into the back of your seat..) before it took off.

    However, I used it when it was 1500km's and in pouring rain (it almost rained non-stop from the day I picked it up to the 1500km point when I said I would give it a shot). Absolutely no noticeable wheelspin and took off like a rocket.

    If you're going to take it to the strip, it'd be something you'd have to compensate for - letting the brake off a little earlier before the tree goes green.
    Most likely feels a little slow because of the clutches slipping a bit at the start (to maintain the revs). If it did it from a higher rpm you'd probably be likely to get wheelspin and a chance of bogging down.

  3. #13
    Join Date
    Apr 2008
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    Sydney
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    187
    Thread Starter
    Not quite DimMy, higher revs will lessen the chances of bogging down.

    Also, not much chance of wheelspin with 4WD and 'only' 350Nm. Need more like 500Nm to get some burning rubber in the dry.

    Now burning clutch, thats a different story. My guess is that 3000rpm was chosen to avoid clutch slip, and to prolong clutch / drivetrain life.

    My old WRX didn't like me dropping the clutch from above about 4000rpm. There's nothing like that burning clutch smell when you stop at the next set of lights!
    RIP! 2007 Passat 3.2 4Motion Black Sedan | 19"s | AVC-9000 | Audi A3 Sportback 2.0TFSIQ

  4. #14
    Join Date
    Aug 2008
    Location
    Bentleigh
    Posts
    35

    Quote Originally Posted by 3Putt View Post
    Not quite DimMy, higher revs will lessen the chances of bogging down.

    Also, not much chance of wheelspin with 4WD and 'only' 350Nm. Need more like 500Nm to get some burning rubber in the dry.

    Now burning clutch, thats a different story. My guess is that 3000rpm was chosen to avoid clutch slip, and to prolong clutch / drivetrain life.

    My old WRX didn't like me dropping the clutch from above about 4000rpm. There's nothing like that burning clutch smell when you stop at the next set of lights!
    Should've explained myself better. I agree that there's not much chance, BUT - if you do launch from say 4500-5000rpm, you may (depending on how grippy the surface is) get a tiny about of wheelspin and then the car will regain grip and bog down. It's either that or slip the clutch to the keep the revs up OR have enough power to keep the wheels spinning a bit, which would be very difficult with a 50/50 split, if you had something like 30/70 it'd be easier. As you said, 3k was probably chosen as a balance of slip/life.
    Last edited by DiMmY; 24-08-2008 at 09:46 PM.

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