AMG E63 Rocks Dyno with 500 WHP

And from the sounds of things, there might just be even more power in this particular setup.

“Nearly all of my gains came from VVT tuning. The car managed a best of 494 @ 24 degrees of ignition timing. The 501 run was running 28.5 at peak power, so I was a little surprised/disappointed that it only picked up another 5hp. But there you go. I wanted to try another run with 29.5 and then 30, but the dyno broke down and we couldn’t do any more. Pity, as I wanted to also test the airbox that I’d made. FYI, this was on UK super unleaded Shell V Power 98 RON (93AKI equivalent).

I feel as though torque limiters might be at work here. Either that or it needs a bit of time to adapt and allow more power to get to the ground. The guy said I can come back for one more run for free, so maybe I’ll do that when the tune has ‘settled’ a little. AFR on the dyno was a nice 12.8-12.9 up top, but later that night it was running a little too lean for my liking, so I’ll need to keep an eye on that for the moment.

Very soon I’m going to get my TCU tuned and have the torque limiters raised (along with another mod which I’m sure I’m going to regret).I’m very confident that there’s a good amount more N/A power to come.”

But as impressive as this is, it still isn’t quite enough to satisfy the OP’s need for speed!

“However, it’s a little bitter-sweet. It’s faster and more dramatic now on the street, but still not quite what I’m looking for. I guess there’s only so much that the N/A M156 motor can push in a big, heavy W212 with pan roof, 19″ wheels, etc. Maybe in a year, I might join the supercharged guys. The easier option would be to do what I probably should have done a year and a half ago. And just swap it over for a twin-turbo E63, but I’m an N/A fanboy.”

And so, the quest continues. We’re eager to see how far the OP can push his awesome AMG E63, and we’re betting you are too. You can follow along by heading over here. And if you want to see how this sweet ride came together, check out the build thread by heading over here!

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Brett Foote

Brett Foote has been covering the automotive industry for over five years and is a longtime contributor to Internet Brands’ Auto Group sites, including Chevrolet Forum, Rennlist, and Ford Truck Enthusiasts, among other popular sites.

He has been an automotive enthusiast since the day he came into this world and rode home from the hospital in a first-gen Mustang, and he's been wrenching on them nearly as long.

In addition to his expertise writing about cars, trucks, motorcycles, and every other type of automobile, Brett had spent several years running parts for local auto dealerships.

You can follow along with his builds and various automotive shenanigans on Instagram: @bfoote.