Not gonna happen unless it’s a race motor with super high compression.
There are guys with boost who don’t make 500 wheel.
There is a lot of hp loss through the drivetrain so you’d have to be making almost 600 crank.
S62 is already pretty stressed. 11:1 CR, VANOS to bring back some low end. The DP motors made plenty of power (the actual number a pretty highly regarded secret), but you probably wouldn't want to drive it on the street.
Part of the issue (ignoring cost, you are going to need some incredibly deep pockets) is the size. You can get 500 crank hp out of a NA motor (see MB M156, rated 507 from the factory), but is 1.2L LARGER. That helps add power in a NA motor.
And you are dealing with 20 year old technology. So the current Ford flat plane crank motor gives 526 at the crank, but it is set up differently, is slightly bigger and runs even higher compression.
As an aside what is the attraction of doing this NA? A supercharger gives a very different feel than a turbocharger, so there is no question of lag. It feels NA, but on steroids.
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Last edited by gsfent; 10th February 2019 at 01:59 PM.