Hybrid turboes and an R90 pump are in your futureI have a friend here with an F31d...it's great! And with a tune it makes it as quick, if not quicker than a sorted M54B30.
Most of last year I drove my Dad's F10d (535d xDrive M sport) and just kept falling in love with the power delivery since during heavy Covid restrictions he wasn't using it very much. In the city it's easy to be quicker than my M3 because of the torque and AWD which is surprising because it's not a small car. I knew I needed a "35d" for myself before they aren't allowed on the roads or too hard to find. A mint one came along locally on Craigslist and it was mine 2 days later.
My close friend works at a well respected worldwide tuning shop for diesels and they are familiar with the E90 335d / E70 X5d so that's what helped me go in that direction because they knew a lot about the engine. The good thing is they are a 20 minute drive away from my home. LOL
I really wish the F31 came in a 35d format in NA but I'm sure the lack of market acceptance was a major cause of it not being available. Having AWD and that amazing ZF8 is a sweet spot to a BMW diesel power plant. At the end of the day it is still internally, a dirty technology and I get it. The manufacturers are forced to make it "clean" but it can only get so clean until you resort to extreme measures to keep selling them. Performance TDIs are a gem when sorted. They really are one of the best kept secrets for "cheap" and refined power.
My new tune is running around 400hp or even just a tad more with just under 650ft lbs torque now. This is kind of an early mid point of what the engine can truly do. I think I'll keep it here because it's still not enough to overwhelm the E90 chassis because of great computer torque management but enough to raise your hairs and swear as you transition to the brakes to avoid going to jail. LOL
An NA engine like the M54/S54 still has its place and it's very relevant in fun factor and pure emotion. Having the M57 diesel has made me appreciate the NA engine even more and it'll always be in my heart!
Sent from my iPhone using Tapatalk