So the RSX numbers for '06 is 201 SAE hp which is 210 hp, base on those numbers, the '06 TSX has 205 SAE hp, so does that mean it's around 215hp?

I think that's safe to say.

I've seen some valid rationals that would put the '06 non-SAE HP rating anywhere from 213 to 217 HP -- so 215 seems like a good guess. Nobody will really know until we see some '06 dynos.

Even then we won't know cause it's wheel horsepower and there's too many variables to translate thank into crank.

I didn't think any those variables changed. So we will be able to measure the relative difference at the wheels which should allow us to determine a fairly accurate difference at the crank.

Just ask Honda!

Youd have to get both cars properly broken in and dyno them at the same time. Even then it won't be that acurate.

I expect Jeff at VTEC.net will dyno an old TSX at the same time he get's his hands on a new model to dyno. I suspect the new TSX he'll get will be a preproduction model so it should be broken in already.