As mentioned in another topic I was lucky to messure some today's engines and I must say that the Flash Tuned 2009 is made for getting as much mixture in and combusted gasses out. The crank intake and the total exhaust port are huge compared with an engine from a few years ago.

I can imagine why this is. A few years ago the EFRA did go to the 7 minutes qualification with a mandatory pitstop, in other words we did need engines running 3.5 minutes and not 5 minutes. The race of devellopping faster engines was started.
Yes, I do believe it is for a part with the manufacturers as we all know the 2013 is an awesome pipe getting 5 minutes so why isnt there a new EFRA legal 2013 like pipe or a Novarossi/Picco alternitive?

Yes, todays grip made by the new cars, GTP bodies and insane clutch setups is draining fuel.

1+1=2 so I think evryone has a part in it. We are setting the rules and the manufacturers making products to them.