First off, I don't think your miata can take an Evo - that's near 300hp stock, AWD, humongous brakes, uprated suspension, so on and so forth.
Secondly, you're comparing apples-to-oranges. you're talking about your modified car, vs a stock car. dump that same $3g's (because a MSM is only 178hp at the crank, either it's a modified mazdaspeed, or you have a flyin' miata kit or something similar) into, say, an Evo, WRX, or an SRT-4, and the chick-wagon stays behind every time.
Been there, done that - I purchased a flying Miata turbo at least 6-8 years ago, drove it. Also had a vortech-supercharged mustang, and there is *NO* way, if you do it fair and supercharge a mustang with equivalent $, that you can even remotely compare.
You need to step back and do an apples-to-apples comparison, and at least try to stay in class. A corvette or mustang is a GS category car, not a Miata category car. If you want to go there,
Oh, and let's not forget, it's not just the HP - it's the torque. In AutoX, on those smallish tracks, torque is what's important, not HP. You can have a 500HP car, but if your torque is low, your out of luck. And I haven;t seen any AutoX runnings, where HP was the issue. #1 is handling, #2 is torque.
Give me this:
http://www.edmunds.com/new/2007/ford/mustang/100744693/specs.html
and $2500, and you're toast.
To be a little more fair, gimme this:
http://www.edmunds.com/used/2002/volkswagen/gti/100003548/specs.html
and $3-4K, and you're still toast.
T
