# AWD Dyno? **URL:** \ **Category:** Shift518 Automotive\ **Created:** [April 5, 2012, 7:06am UTC](https://forums.speedlife.net/t/awd-dyno/263284 "2012-04-05T07:06:40Z")\ **Posts on this page:** 1\ **Showing post:** 17
**Author:** ![6spd\_ek](https://avatars.discourse-cdn.com/v4/letter/6/45deac/32.png) [@6spd\_ek](https://forums.speedlife.net/u/6spd_ek)\ **Post date:** [April 5, 2012, 6:57pm UTC](https://forums.speedlife.net/t/awd-dyno/263284/17 "2012-04-05T18:57:21Z")
> [@Summer START @ Dunnville Review / Pic's / Vid's / Thank You Thread!](https://forums.speedlife.net/t/summer-start-dunnville-review-pics-vids-thank-you-thread/49001/224): > > I guess I don’t understand how dyno’s work. Doesn’t the car initiate the rolling of the dyno drums or whatever they are called? If that’s the case, my car should be fine. > > I guess we’ll find out on the 18th. My car is rated at 275hp/268tq, I’m guessin I’m going to see like 230-240/225-230 actually going to the wheels? The wheels do initiate the spinning of the hubs/drums but the load doesn’t come on until a (user defined) rpm. don’t be surprised if its 200-210. awd cars average 20-25% drivetrain loss on the dyno. throw in an automatic transmission & it could be more. > [@This is what happens when you send a guy out to buy a fridge](https://forums.speedlife.net/t/this-is-what-happens-when-you-send-a-guy-out-to-buy-a-fridge/49022/21): > :crackup^ btw Morgan has tuned with uprev before - its definitely decent software --- _[View the full topic](https://forums.speedlife.net/t/awd-dyno/263284)._