Launch Control

Discussion in 'Technical' started by 90TTZ, Sep 11, 2007.

  1. 90TTZ

    90TTZ Back From The Dead

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    I'm working on a device that is used in conjunction with the TTS for manual owners to be able to hold the throttle flat to floor which will be rev limited and then full power when the clutch is released. Obviously this is ideal for the drag or circuit racer for that advantage on the start line.

    Any comments or who would be interested in fitting this to their own Zed?
     
  2. Chrispy

    Chrispy Pretentious Upstart

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    I had this with my E-manage Ultimate. Never got it working properly (but I didn't try too hard :p) Very nifty idea and a good way of shooting flames :D
     
  3. xplodzx

    xplodzx Member

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    wouldn't this be just like a product gizmo already make?
     
  4. Chrispy

    Chrispy Pretentious Upstart

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    Yes, but knowing Karl it'll only cost $20 :p
     
  5. rollin

    rollin First 9

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    how do you intend to rev limit it? cutting fuel or spark?
     
  6. 90TTZ

    90TTZ Back From The Dead

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    Factory ECU limiter.
     
  7. akeizm

    akeizm New Member

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    I'd be interested.
     
  8. mattyhylander

    mattyhylander Black Zedder

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    But what does the factory limiter cut? fuel or spark, i like the spark idea.....lets get some flames shooting, then i'd be interested!!:D :D
     
  9. Vinny X

    Vinny X Ova The Top

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    2nd that

    I second that!!! :thumbup:
     
  10. pexzed

    pexzed Forum Administrator

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    I believe the factory ECU cuts the fuel
     
  11. Chrispy

    Chrispy Pretentious Upstart

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    I think it would be better to cut spark, every second igintion signal or something like that. You don't want to be pinging your engine to death evertime you go for a hard launch :rolleyes:
     
  12. azzurro

    azzurro Boostin Outlaw

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    some stand alone systems..

    like haltech, microtech and the like have some sort of preboost system with traction controll.. so that u can sit on the line reving the car with 15 psi ready to go as sooon as u dump the clutch... :D would be lovely if perfected...

    im sure the factory ecu can simulate this.. good luck wit it! :biggrin:
     
  13. vbevan

    vbevan Active Member

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    Look at the Traction Control made by race logic. Similar idea, cuts fuel and/or spark depending so it doesn't flood the engine or kill the plugs.
     
  14. rollin

    rollin First 9

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    id rather be cutting fuel, if the injectors keep firing it can soak the plugs.

    I dunno about holding it on the factory limiter. on my zed if it hops off the limiter for a bit when i shift into second it feels a bit sluggish. its hard to explain tho.
     
  15. silver300zx

    silver300zx New Member

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    i have a bee*r rev limiter that should do that

    i still havnt put it in yet but it can be set up like that , if you are trying to build one cheap thats great thought , as this bee*r thing cost heaps for something that i would have thougt would only cost a few dollars to make
     
  16. WA300Z

    WA300Z ZD32WA

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    There is a similar system also in the murcielago. You press a button, then floor the throttle, when the revs hit 4,000 the clutch will bang in and you'll be off.

    Is this what your trying to do?
     
  17. ZX2NV

    ZX2NV Z Racing Evolution

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    I am keen but 1 big problem I dont run a factory ECU so I guess I am out unless its an adaptable system
     
  18. 90TTZ

    90TTZ Back From The Dead

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    It uses the factory ECU limiter (logic), not the actual value which can be modified easily.


     
  19. rollin

    rollin First 9

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    yeah i understand that, in effect all you are doing is setting the factory limiter and subsequent condtions at a lower RPM, but as i said with my car when it has been hitting the limiter for a bit it doesnt run too well when you get going, but my car is or was running a heavily rich high rpm tune which might expain it
     

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