Re: 250 RWKW From AU II
It all depends on how much you are capable of doing yourself.
As noted above by 'Laminge', there are several people who can help you achieve your goal, and achieveable it is.
As you rightly point out, the laws of diminishing returns sets in after a certain point, but 240rwkw, should be attainable for a reasonable amount of dollars.
You will most certainly need to force feed it, whether that be a supercharger or turbo, makes little difference.
NA the I6 can reach over 170rwkw without too much bother, but much over that and you may end up with a cranky engine. This can be achieved for around 5k, or less if you do things yourself.
Forced, the sky is the limit really, but I would think a practical street limit is 250-260rwkw or so.
10k should cover that IMO, and you would likely be able to do it for a lot less if you are good with your hands.
4L I6, naturally aspirated producing 173.5rwkw.
14.410 @ 96.49mph with street radials.
What's that?..... Did I hear you say TQE power?