Here's Ray Freundt's TM HP data from when he & I went to Miller 2 years ago. These are all laps form the same session in the same car, all within about 1 sec laptime wise. I removed the slower and faster laps, which showed more variation. Miller is as good of place to gather data as any, with a long, flat straight. This represents, IMO a best case scenario (certainly more consistant than other data I've looked at). How much HP is he making?

http://sterlingdoc.smugmug.com/Other/Web-pics/13874300_WQTFx#1027113080_irNHg-A-LB

Larger picture linked here:sterlingdoc.smugmug.com/Other/Web-pics/1...27113080_irNHg-X2-LB

This was after he removed the crud from his air filter (see below) - he was making a lot less HP the sessions before that.

http://sterlingdoc.smugmug.com/Cars/Miller-Motorsport-Park/5180308_CajYM#313965950_bqdbD-L-LB

Link: sterlingdoc.smugmug.com/Cars/Miller-Moto...313965950_bqdbD-L-LB

Edit - can't seem to get the HP graph or pics to show - click on the link above, and you'll see it...

Is that car for sale 148 hp if I am reading that right.

Who built the engine?

By my reading somewhere between about 134, and 140, depending on the lap. It varies, which is my point. When you try and match one car to another, now you've doubled the variability. Peak HP, which is the only number were using from the TM, occurs only over a few seconds at most (when the motor is turning peak power). The TM is measuring acceleration at that point to determine a HP number. How much more will an extra 5 (or even 10) HP accelerate 2,600 lbs over a couple of seconds - .01 G? maybe? How accurrately/reproducably can we measure that? Average G's over the entire straight might tell you more than "peak" power, but you have to figure out many other parameters to make that meaningful.

It's funny you should mention that motor. Ray had just bought that car from Florida shortly before Miller. It was claimed to be "spec legal". Shortly after the race at Miller in 2008, the motor was torn down before he went to Nationals. That motor was highly illegal internally. Knife-edged crank, lightened flywheel, 944S AFM (with stock part number plastic cap on it), etc. It cost Ray a lot of money to make that motor legal, which he did, before Nationals.

The TM data doesn't look like that of an illegal motor, but it undoubtedly had advantages that may not have showed up in peak power. I don't remember what it dyno'd, but it didn't raise any eyebrows. Only a thorough tech inspection would have found the illegal parts. FWIW, it was Mid-pack at Miller in '08 (not Nationals), illegal motor and all.

Lesson learned - never trust someone else's definition of legal!

I was looking at pic #1 that shows 148.9 hp

Bummer about buying a car that is claimed to be legal. The crank is one of those things that you would never look at except at Nationals.

Somehow you found the graph of Dirk's outlier high HP lap. It was also on Smugmug, but not what I linked to?

The upper link in your post has two pages/pics.

It is #1 of 2.