Having purchased a 135, ive seen a lot of people making decent power gains using a blend of e85 with pump gas and the results are often comparable to straight race fuel a fraction if the price. As with the n54, I know that the n14 had its issues with hpfp failure and obviously wouldn't want to push the limit TOO much but what I have seen on the bmw forums is a lot of people adding a inline booster pump like the walbro 255lph ones to supplement the oem setup and take some strain off. Has anyone thought of doing something like this? I know czar would probably be the person to talk to when it comes to finding out the limits of the stock injectors but seeing as how the power density of e85 is approximately 30% lower but I would run a 30 percent blend give or take, I would assume that if my goals are 230 to 240whp and I see jcw guys doing 250 to 260 with aggressive tunes that I would probably be roughly in line with them on duty cycle providing that the mcs has the same fuel system. I think I may give it a shot as it seems like something different and I dont mind being the test rat as long as I know what im getting into

Car is an 07 mcs, riss dp with cnt exhaust, k&n drop in and hard inlet pipe, turbo is being sent out this week to get the compressor housing milled out amd a bigger wheel installed. Fmic will be coming shortly after

Thanks in advance

PS I was factoring in getting a tune for it obviously which I forgot to mention. I have AP so I would have PAS do it most likely as they are 45min from home

 

http://www.n54tech.com/forums/showthread.php?t=18956
http://www.n54tech.com/forums/showthread.php?t=18382

Above are links to aforementioned installation on bmws. Anyone have any thoughts before I go into it?