# AWD Power Loss

**URL:** <https://forums.speedlife.net/t/awd-power-loss/189939>\
**Category:** PittSpeed Automotive\
**Created:** [May 15, 2007, 4:11pm UTC](https://forums.speedlife.net/t/awd-power-loss/189939 "2007-05-15T16:11:17Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![AeroKing](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/aeroking/32/6011_2.png) [@AeroKing](https://forums.speedlife.net/u/AeroKing)\
**Post date:** [May 15, 2007, 4:11pm UTC](https://forums.speedlife.net/t/awd-power-loss/189939/1 "2007-05-15T16:11:17Z")

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Does anyone have a estimate on what percentage of power is lost through the drivetrain in an AWD car/truck. (Auto and/or Stick)

i remember hearing on a RWD car the power loss is about 10%-12% with a stick, and 13%-15% in an auto.

I have seen 2 trucks (same mods as mine) running 220hp, and 430trq. and i was just wondering what kinda power the trucks are making at the motor…

BTW its a 700R4/4L60 and a 3:42 rear/front + the transfer case.

any idea of percentage?

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**Author:** ![STEELCITYEVO8](https://avatars.discourse-cdn.com/v4/letter/s/d9b06d/32.png) [@STEELCITYEVO8](https://forums.speedlife.net/u/STEELCITYEVO8)\
**Post date:** [May 15, 2007, 4:24pm UTC](https://forums.speedlife.net/t/awd-power-loss/189939/2 "2007-05-15T16:24:50Z")

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I would assume that their all different by a few percent, but for the evo for example word is in the 22-25% loss. seems high to me but i dont know for sure but that seems to be the general consensus amongst evo owners

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**Author:** ![burnyd](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/burnyd/32/6020_2.png) [@burnyd](https://forums.speedlife.net/u/burnyd)\
**Post date:** [May 15, 2007, 5:50pm UTC](https://forums.speedlife.net/t/awd-power-loss/189939/3 "2007-05-15T17:50:48Z")

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that much torque lol? But with most of these awd imports I thought it was around 30ish percent?

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**Author:** ![Pewter](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/pewter/32/5936_2.png) [@Pewter](https://forums.speedlife.net/u/Pewter)\
**Post date:** [May 15, 2007, 6:29pm UTC](https://forums.speedlife.net/t/awd-power-loss/189939/4 "2007-05-15T18:29:52Z")

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> [@Twizted B-Day Bash! V.=Psphinx81-JDMR2,Sn8Kbite,Krazy K,Aloha17leigh,And Meeeee!](https://forums.speedlife.net/t/twizted-b-day-bash-v-psphinx81-jdmr2-sn8kbite-krazy-k-aloha17leigh-and-meeeee/29914/47):
>
> I would assume that their all different by a few percent, but for the evo for example word is in the 22-25% loss. seems high to me but i dont know for sure but that seems to be the general consensus amongst evo owners

:bigthumb: 22-25% loss

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**Author:** ![imported\_gearhead](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/imported_gearhead/32/5957_2.png) [@imported\_gearhead](https://forums.speedlife.net/u/imported_gearhead)\
**Post date:** [May 15, 2007, 7:50pm UTC](https://forums.speedlife.net/t/awd-power-loss/189939/5 "2007-05-15T19:50:25Z")

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you’ll never know unless you engine dyno, then chassis dyno. someone out there should have done that to base a percentage loss off of.

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**Author:** ![fah\_quad](https://avatars.discourse-cdn.com/v4/letter/f/ac91a4/32.png) [@fah\_quad](https://forums.speedlife.net/u/fah_quad)\
**Post date:** [May 15, 2007, 9:25pm UTC](https://forums.speedlife.net/t/awd-power-loss/189939/6 "2007-05-15T21:25:49Z")

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Audi’s are generally at 22% loss on quattro models.  
I don’t know, my personal opinion is that WHP is all that matters anyhow, and CHP is just so auto makers and penis envy-ers can claim more than they really have.  
A stock A4 only has 170HP as claimed by Audi. But that is only like 135-140 at the wheels at best. They wouldn’t want to use that in an advertisement.  
I’d love to know what my crank numbers are so I could have bigger balls… but it wouldn’t matter when it’s all said and done and I get my ass handed to me.
