Quote:
Originally Posted by serialk11r
Looking at that chart that arghx7 posted, it seems like the octane rating effectively goes up quite a bit if sprayed with direct injectors rather than port injectors...:O Dunno what that "130" is but the numbers look like RON (the basic fuel is sitting at 98, which is normal "premium fuel"). 130RON sounds pretty good  |
Direct injection has a massive impact on detonation resistance. Basically on port injection only, when I was testing that, I could only match OEM HP with E85 and on pump gas I believe I was about 20 whp less.
Direct injection is definitely something worth embracing even with it's limitations which is why I'm really happy the FRS/BRZ also has port injection to supplement fuel delivery.