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View Poll Results: Around what wheel horsepower will the transmission become a weak link?

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  • ~400WHP

    0 0%
  • ~450WHP

    0 0%
  • ~500WHP

    1 14.29%
  • ~600WHP

    6 85.71%
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  1. #8
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    Guest-only advertisement. Register or Log In now!
    WHP will not break the transmission. Torque is the problem. A 600 whp, 450 ft/lb car is a lot less likely to break the tranny than a 600 whp, 650 ft/lb car. We've seen the ECU torque limiter set to around 500 ft/lb. It's going to take bigger turbos and full ECU tuning with the torque limiters removed before we find out.

  2. #9
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    This topic is not a poll to discuss.
    It is an engineering question.
    And KIA would not say (and rightly so) to protect warranty.

    So we only have speculation until a statistically significant number of trannys fail...

  3. #10
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    You could do a pull at 500 ft lbs and be fine. H*ll, you could do a pull at 700 ft lbs and be fine. Reliability may be the underlying issue here. Consistent pulls will tell us what it can handle. No car is at it's limit from the factory besides my beloved '94 Impala SS. Trans was rated for 360 ft lbs max; it came out of the factory with 330 ft lbs. Tranny failures were highly common before 100k miles which is why I had to rebuild it 3 times in 232k miles LOL RIP
    Current: '15 Genesis HTRAC w/Sig&Tech - CBW "Pearl"
    Prior Gems: '08 C6 Z51, '07 300 SRT8, '94 Impala SS
    Fuelly (MPG): http://www.fuelly.com/car/hyundai/ge...15/ssl1/741060

  4. #11
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    Guest-only advertisement. Register or Log In now!
    Someone in another forum posted that, from a document originating from Kia, the transmission is rated to 1000 Nm (737 lb ft)

 

 
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