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Riceball777 Riceball777 is offline
Junior Member
Posts: 211
Join Date: Jul 2015
Car: 2007 e90 335i
Default 04-23-2020, 09:54 PM

Originally Posted by Bullitt1841
Honestly, it's probably not worth those shops' time because there's so many low cost and "free" methods of custom/fine tuning the N54 now. I don't have any tuning experience with any of those shops, but having had an N54 and a B58, I wouldn't let any shop tune either of those on a dyno because it's so (relatively) easy to have someone tune it remotely. Plus, a dyno will not fully simulate being on the road, especially an inertia based dyno like a Dynojet. Forget trying to find a shop with a load based dyno, like a Mustang Dyno, that REALLY knows how to set them up properly and also wants to take the time on your car.

Dyno tuning is hit and miss, in my opinion. Keep in mind that those businesses are basically "on the clock" the entire time your car is on the dyno, or otherwise taking up the shop's resources. So they want to get your car done with as quickly as possible. I come from the Mustang world, and I was so happy when I found the JB4 and this forum for helping me tune my own vehicle. There's no way you can get this type of support for "free" on any non-JB4 platform. Dyno tuning is so overrated, even without a JB4.

Personally, I had Trebila custom tune my N54 after I tried the BMS OTS flashes (both Cobb and MHD). Trebila fine tuned it very, very quickly, but my issues were more with timing at that point. Fine tuning boost control should all be done with the JB4, for the most part. Which you can easily get tons of free support on this forum with.

I am very particular about my cars, but I also don't consider myself a real "tuner". But the JB4 gives me pretty much all the tools I need to get my car running exactly the way I want it.
Thanks for the info. I guess Iím just lazy to learn and to do all the research on how to log and read the logs and to learn how to adjust all the boost target settings on the jb4. What It comes to modding cars I do 99% everything my self from swapping engines to building engines. The only things I donít do weld, custom fabricate and tune. I just donít feel like learning. Being in so cal I would think that would be a shop that can fine tune my car for the maximum output given my fueling limitations and to fine tune the boost control.

2007 e90 335i
pure stgae 2 DD turbos, rb inlets, bms 4 bar map sensor
Jb4 with mhd hybrid e85 back end flash, vrsf down pipe vrsf 7" intercooler, vrsf charge pipe with tial bov and afe intake. Fuel it stage 2 pump and fuel line/ethanol content kit.
spec stage 2+ clutch with new oem dmfw
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