Here’s the video of a stock dyno run on a 2016 BMW 340i to get a baseline before any tuning. Looks like 302 hp at the wheels and 312 lb ft of torque. The DynoJet estimated 365 hp compensating for elevation so who knows what the real number is. But these numbers seem pretty accurate based on the numbers I ran at the local drag strip recently.
I guess this sucker does 145 mph in 5th gear 😀 and it’s got 8 gears.
Went to the drag strip last night, here are my numbers:
Rocky Mtn Raceway is at 4200 ft
RUN1 – 13.742 @ 102.56 mph – Sport+, DCT not fully defeated
RUN2 – 13.660 @ 103.67 mph – Sport+, full launch control
RUN3 – 13.676 @ 103.44 mph – Sport +, full launch control
As many of you know, for launch control to work you have to actually drive around a bit, not just wait until the engine is warm. I heard it was 6 miles but I tried it at 3 miles of circling the pits and it worked.
So that’s a bone stock 2016 340i AT M Sport w/ track handling on 19″ wheels, oem summer performance bridgestone runflats.
I’m doing a dyno run next week then it’s getting the stage 1 Dinan. I’m really excited to see how the claimed extra 95 rear-wheel ponies affect the dyno numbers and ETs.
And yes, my reaction times do suck 
Maybe that’ll get a little better next time, too.
Timeslips:
BMW has ruled and reigned in the sport sedan category since they created it back in the 1970s. What they’re able to accomplish today is nothing short of miraculous. What if I told you it’s possible to have a brand new car that does low 13’s in the quarter mile, 4.2 seconds 0-60, carries 5 adults, pulls nearly a full lateral G, and gets 33mpg on the freeway for $48,195? Welcome to 2017. That’s a 2018 BMW 340i with a Stage 1 Dinan tune. And zero options 😃.
Luckily mine was used so I didn’t have to spend nearly that much but I just picked one up after a LOT of shopping. Behold:
It was such a great deal I took a one-way flight to Burbank and drove back to Utah 2 weeks ago.
This Friday it’s time to hit the drag strip and get some stock numbers so I can see how big of a difference the tune makes. Did I mention that on the 340i you get 40Â extra horsepower? Good times.