Hi everyone, i picked up a 2017 540i and threw on a DS2.5 and downpipe, along with a flex fuel sensor. I’ve been gradually turning the car up to what I think is max effort for this setup. When the car upshifts I’m getting boost overshoot and the throttle closing a bit. I could probably raise the load ceiling to avoid throttle closure but would still like to dial in my boost control. Here’s an example of a quarter mile hit on the street. The car has gone low 11s on a drag radial, but this particular run is on a hard street tire. Traction control kicks in quite a bit from the launch. Car is at 4050 lb with driver.
Also has quaife LSD and a custom Sutphin tune.
My goal is to learn how to dial in the custom wgdc tables to get better boost control. Time is currently using a 3d boost table to target boost.
I would rather finish my DIY tune than simply pay someone for a custom tune. I am willing to pay for help with my DIY tune if that’s what it takes. I like the challenge of figuring this out and feel i will get my best quarter mile ET by being able to tweak my tune at the race track. Goal is to max out the stock turbo to get best ET. Then i may upgrade to a slightly bigger turbo. Would like to beat my F10 535ix that runs 10.7@127. I plan on putting my G30 on a diet when the time comes to get best ET.
Also has quaife LSD and a custom Sutphin tune.
My goal is to learn how to dial in the custom wgdc tables to get better boost control. Time is currently using a 3d boost table to target boost.
I would rather finish my DIY tune than simply pay someone for a custom tune. I am willing to pay for help with my DIY tune if that’s what it takes. I like the challenge of figuring this out and feel i will get my best quarter mile ET by being able to tweak my tune at the race track. Goal is to max out the stock turbo to get best ET. Then i may upgrade to a slightly bigger turbo. Would like to beat my F10 535ix that runs 10.7@127. I plan on putting my G30 on a diet when the time comes to get best ET.