- Apr 22, 2018
- 2008 335xi E90
Just kind of wondering this I am not sure what awhp I am at but I am on 100% stock fuel system minus the $99 full bucket eBay Chinese lpfp (it was originally going to be a core but the damn thing handles E60 with 70 psi somehow the past 2 years I put it in for fun as the stock oem wouldn't handle E40). I run E55-60 gas 22-24 psi midrange on stockers 17-18 redline (maxed). FBO+ inlets. Problem is my hpfp which is about 2 years old is sitting around 10 in logs (I think that's 1000 psi) which is alittle low. If I go bigger turbos maybe less E85 what is realistic performance gains I could get on stock fuel system? I am trying to figure out how much of a gain upgraded turbos would be and if it's worth it cuz I'm starting to get into the port injection area with controller lpfp upgrade etc and that will all add up real quick.