I agree with you on what a Pro driver uses, and then throws away and gets a new one, but we are talking about us mortals who have to race with 1 or 2 engines all year, we have to take care of our engines and treat them well.

Don't agree with you on Novas beeing more reliable than other well know brands. Read on this same forum (and you've written about) the problems with Nova engines with MCP pistons not lasting the way the old ones did, JP engines with silicone crank ramps falling off, etc etc.
I've talked to people inside of Serpent about the real issues of why they broke with Novarossi....it's because of reliabilty issues.

Yes Sirios had carb and crank problems with the first TRP series, and then problems of premature wear of conrods on first series of EVO 2 (with the small head), but they have corrected those issues with the latest series of EVO 2 (big head), which says a lot of the company improving their quality over time.

I do agree with you that every brand is trying to sell more engines, so we have to deal with it, and be more carefull on what we do, and how we treat our engines, until someone produces a more realiable engine and doesn't push the price up because of that.

Yes, I've seen Sirio, STS, and JP exchange engines or refurbish for free, engines with proven failures of production, and that my friend is what we need allways, brands that support their products when problems arise.

There is no perfect engine, and never will be.

Peace on you man.

AFM