steve b
New member
there is established precedent, though not explicit in the ops manual, to use a multiplier OTHER than 25% (or the "default" 30% ITB/C multivalve or as currently CRB imposed on V8s in ITR) when evidence shows the gain potential to be other but ACTUAL wheel hp to be unknown. S200s and other 4cyls in ITR are good examples.
in the case of the MR2, it's not all about proving HP any more (there are still doubters on comittee, and well, PK), it's the fact that dropping the car to 15% (based on above precedent and dyno data showing ~13% to be the max to date) means 190# publsihed min weight change from the current (25%) weight, or 285# since the change was made from 30% roughly a year ago. there's a feelign that even if that passed the membership sniff test (not everyone is aware of the details) that it would not pass CRB muster. I disagree with politically derived decisions when good mathematics exist, but there you go. fWIW, 108whp becomes 2210 lbs in ITB, assuming 15% driveline losses. functionally no different than a 15% classification as only a car driven by an 8 year old will get that light.
I agree and for that reason I'd be THRILLED tosee them adjust the weight based on a 20% gain. When the ITA weight was 2270, I could never get down below 2350. The dyno sheets are WELL below a 20% gain so everyone should be comfortable with assuming a 20% gain. Class the car at 2335 and I'll still go out a little over weight, unless I stop eating pizza and donuts (which will never happen).
I got tired of reading after about the 6th page of this thread and jumped to the end. But the only thing I could think of as the argument went on about "car A weight" and "car B weight" a few model years later was "what if the engineers got it right on the first model and there was no more potential gain?"... like in say....an MR2?