Higgs,
You're 2 cents is more than welcome. I would say finally and I wish you had it thrown in sooner.
Please bear with me as I try to figure out if I understood you correctly.
Even if the exhaust system is just the outlet for combustion residue, there is a clear connection between a certain system and changed - read increased - performance that is showing when applying the formula. Leading to a different number of units called "HP", am I correct?
And that, as Ducati now has already developed 5 different combo's or systems for the Pani ( Stock street, Stock street + slip ons, Evo line, Pro line, and the SBK line) the choice of such an exhaust system seems to be crucial to this performance and also to the way this performance is delivered ( bottom versus top power).
But for each specific system to work to its fullest, it needs a different tuning, being in broad lines, the combination of amount of fuel, air and combustion timing. Items that will add to this tune are: fuel settings ( through DP ECU or aftermarket systems), airfilter and actual timing of the cams. Am I still correct?
So when we refer to a certain type of exhaust system, in fact what we do is refer to a specific combo of tuning "packages" that can be applied in total, partially or combined. And even if we talk about the pipe, in fact, what we are doing is referring to the mapping that is activated by the installation of the pipe and the key that comes with it. Of which the exhaust itself is just the outlet.
From what we can measure from dyno's the range of this differences ( top power and delivery ) can vary quit substantially. And subsequently it is to be expected that these combo's, and how they are put to work together, have an important effect on the heat and pressure on the internal parts of the engine, mainly the pistons and conrods.
If I did understand you correctly, then some things come to mind.
Another given, I guess , is that engine capacity is the major determinating factor as to maximum power output potential ("no substitute for cubic inches")
Question : Does this imply that there is a definite limit to a certain engine capacity? And that the higher the power output gets as standard, the more impact extra tuning will have on longevity and reliability.
Just noting that the 1198 was announced at 170 hp at 9.750 revs back in 2009 ( ref Bikez) and that the Pani base/S/TC was announced at 195 hp at 10.750 revs carrying just 1 cc more , can we conclude that, while going from testastretta to superquadra and gaining 15% more power at the cost of revving 10% more, we have indeed moved substantially closer to what an 1200cc twin engine can maximally deliver? This all while still having to adhere to standards of daily use and stringent environmental regulations. That therefore, while maintaining the same stock parts ( pe : 1198 conrod quality = 1199 base conrod quality) margin for error while changing one aspect of tuning possibilities is reduced significantly. And that even the type of use - street use or intense tracking use - will have a bigger impact on longevity or possible failing of those "high strung" engines. As everything actually hoovers much closer "to the edge"
If there is such a thing as "˜ closer to the edge', can an indication of the fact that, in it's base form, the Quadra actually is pretty close to that limit, be seen in the fact that whereas the 1198R announced another 10 bhp ( 180 at 9750 ) extra over the 1198, the 1199R actually is announced at exactly the same power. While the R engine only did get lighter and stronger parts to handle the higher pressures and heat coming from more powerful tuning combo's ( pe : Pro pipe and mapping ) and intent of intenser use. That tuning packages linked to different exhaust systems need the changing of some very specific internals: the conrods and friction reducing materials ( some ceramic coatings here and there). And a lighter flywheel. All steps taken to strengthen the engine as a whole and reduce friction and stress. And in fact the only steps taken.
Let's be clear about the fact that those tuning combo's will, when done well, all likely not cause an engine to fail with average intensity use. Question is whether, even when applied correctly, there is the possibility that some parts are just not strong enough to withstand many miles off very intense use in connection with track riding and or racing. I don't think I ever suggested that moderate use would kill the engine and that therefore the base engine would not be good. I have allways referred to this "˜close to racing' - tracking + track only bikes.
What worries me is that there are more than enough indications to be able to come to the conclusion that there very likely are. If it kwacks like a duck, "¦ .
these indications are based on following facts.
1. I know personally of 2 engines that did blow. KNOW as in "˜ I held the broken parts'. I know as off today that both broke the conrod of the front cylinder.
a. One of these engines I know for sure had : MWR filter, Rapidbike module, Full mapping, EVO line, SSTK timing done to it. As in indication of evolution : it started at 165 RWHP but now had 193 bhp on the rear wheel ( measured DIN mode). At least 3 more panigales were done that way on this bench and they all raised from 192 up to 201 bhp in Din mode. Indicating that they all were within eachothers range and close to the same ceiling. As for all bikes : Much of the dip had been smoothened out. It had 3000 km on the clock , 2000km track time on fast to very fast tracks (Spa - Mugello,"¦ ). This bike HAD NOT HAD THE REV LIMITER RAISED. There is a pic attached of the piston that came out of that engine.
b. The other Pani, also owned by an intense tracker, was carrying the Pro Pipe. After 10 minutes the engine went.
2. In the warranty debate, Ducati was eventually courteous but did annul the warranty stating that Pani development is a Ducati only thing. Any engine management system put on the bike does make the warranty void.
3. The dealer, who did the timing and maintenance, clearly referred to the base engine being very close to it's maximum endurance capacity as stock and that squeezing out the last bit of power or torque will not last. Again: when ridden hard and intensly.
4. The Pro package bringing even more power on top and lower especially earlier is stated by Ducati as R only. See Ducati comparison of Evo and Pro attached.
5. We also know that even on the R, who is equipped to handle all this, package nr 5 , being the SBK pipe and mapping is considered not eligible for warranty.
6. Steve Moore, BSB Ducati panigale team-owner , manager and tuner put stronger conrods in his SSTK bikes before the Ducati TI conrods existed.
7. Ducati, through the dealer has come up with a specific maintenance schedule that allows an R to be tracked only and remain under warranty cover.
Can we then conclude that:
1. Messing with the ECU, some exhausts and there mappings to raise output raises reliability and longevity issues
2. Ducati itself opting for some - be it few - very specific parts to be put in their racing oriented version of the Pani is an indication that for such use , those stock parts may probably not up to the job.
3. That by specifically excluding some kits from warranty, those kits are probably too much for that engine in those circumstances.
4. If one wants no issues with warranty, one should stick to allowed kits and ducati mapping only ( follow the ducati upgrades)
5. That for those not upgrading to the stronger parts and yet having or installing kits to up the output to levels as described, there is a twilight zone wherein the engine could blow.
6. That whatever you put on, once you ride it hard all of the time, it may be a good idea to change to those specific parts.
If I did go wrong somewhere, I d very much appreciate if you would point me out where exactly. I yes, i stand to be corrected, i f not, i learned something today and do appriciate your input.
btw : The Pro pipe just got in !