Howdy,
Hey, can you provide proof that the incorrect hp # was the original one, vs. the later one after ECU tweaks? Based on the compression # stuff, it sounds to me like the original motor probably stood to gain more than the process assumption, if you bumped the compression to the legal limit since the original motors didn't have what the oem spec said they should.
You guys crack me up. Nobody gives a shit that the Miata got some weight in ITA. Most everyone seems to think that's better for parity. Instead, you'd rather it was justified by handwaving method #2 instead of handwaving method #1. Even though they come out within 20 lbs of each other.
Mark
Not sure what you are looking for here. The 1.8L Miata was classed on two different spec lines in ITS way back when. The 94-95 cars were requested for a reclass, and at the time, the CRB was very conservative on these small multi-valve cars in ITA. Since they had no real documented way to weight these cars, the newly born Process was used to justify to them that these new cars were in the same ballpark on paper as the cars in the class. See also: Great ReAlignment
The 1.8 car came down at 2380 (10lbs more than process as described in a previous post). A year later, someone requested the 96/97 cars...that is what sparked the entire discussion and review of either combining them or having different spec lines. If they had different spec lines, nobody would have built a 96-97 because of power potential, weight and the VIN rule that was in effect not technically allowing you to do so. The rest is history.
On the second part of your question, the original motors with the 'soft' pistons did NOT make 128hp. A quick trip down Shrowroom stock and Spec Miata history books will uncover tons of information. Mazda fixed the issue mid-run of the 128hp cars. When you order new crate motors from Mazda, doesn't matter what year you ask for 94-97, you get the same stuff. In 1996, they went OBD-II and it bumped hp by 5. One additional electronic sensor, and there you are.
So to answer directly, the early early motors may have had more to gain, but they were 1/2 a point down and were soft on the HP to begin with so there is no net gain. Not sure what you are trying to prove there.
On your last point, you are obviously missing the point that it's not about the weight. 80lbs? I don't care. What I do care about, as someone who has a ton of blood, sweat and tears invested in IT and the Process, is that no matter what has happened in the past, what is written, what is agreed to, etc...the CRB still would feel compelled to ram a decision down the ITAC's throat even though it was against policy (or that the ITAC would go out-of-policy to satisfy a directive they didn't believe in). That is what it is I guess. The ITAC could have just recommended weight via known dyno data and added 40 or 60 or whatever, and it would have been, although aggressive and unprecedented at that level, well within ops manual protocol.
Then, less upsetting but still, is people justifying the RESULT by saying "well if we did it with dyno numbers it would be within 'X' pounds so don't worry about it. We guess what? The HP is so close to the target that the ITAC would have never done that on their own so it's a stupid platform for an argument. It's one procedural mess-up trying to justify another. Like I said before, I would have rather been told, "The CRB wanted us to address the Miata and the perception of the competitive balance of ITA. We looked at the Ops manual and we determined that with known HP, the car should weigh 2440, a 60lb increase over current weight, a 70lb increase over proper original process weight."
Then I don't whine for a couple days on the Ops manual, the process and a ram-rod job...I just whine for a couple hours as a typical driver who has to go buy lead and develop a new set-up. See? It's about the Category, not the Miata.
I have only talked with one guy who is all cranked up about the increase. Seriously, whoop tie-do. But people need to understand that this is about what everyone here has been asking for for years - and Josh and Jeff and team had given them in a final format - a documentable and repeatable process for which cars are classed and re-classed. It's the cornerstone of the category an it's popularity IMHO.
I know that is beating a dead horse for many but it can't be explained enough to those who haven't been here for the long haul.