Originally Posted by Sirio2127
Nickiphorosn, its all got to do with ifmar rules. the sirio t3 meaning 3 intake ports i legal for state title national titles and world titles providing the you get the ifmar or efra crank version. The 12 5t is faster but its classed as an outlaw engine and not legal to run it events that requrie ifmar legal engines. most countries have classes were out law 12 engines can be used. the Sirio 5t sti is a 5 intake port engine and will produse much more horse power and will be faster over all. If you are in an rc car club ask them if they run a class were outlaw 12 engines can be used. If you just use your car for fun get the 5 port as the paformance difrence is a bit better because the engine dose not have to conform to ifmar engine limations on number of ports and size of crank port. Regards Jeremy.
ok thanks sirio 2127.i just want this engine as a second engine.i participate in two car leagues.the one of them don't have a limitation for the ports of the engine so the t5 sti would be the choice for me at a very good price(225euros).My main engine is a Novarossi 3sct which i use at the main league.i just don't want to ruin my novarossi so fast.the sirio t5 would be i guess(taking in mind your thoughts about this engine) a very good choice.i was searching for a buck up engine arround 200$usd.i was about to pick a jlr red dot or picco,but i checked the repair cost for those engines and is about the same as sirio and maybe more expensive(jlr red dot p/s/c=140$).!!!!
so why don't i pay 20-30euros more to buy a sirio,which is far a better and more reliable engine?thanks a lot my friend