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What exactly is "Switchover cost - M240i (Burger)"? and how is the $199 Burger Tuning Supra intake billed for $479? https://burgertuning.com/products/bms-intake-for-2020-a90-toyota-supra As far as I can tell, you got ripped another $660... Unless they f'd up buying the $479 M240 intake and...

Answer from BMS: Duty bias values are global so they affect all maps. (absolute targeting only - map 4 and 5) FF value is saved PER MAP. Wastegate Adaption is default on for all OTS absolute maps (map 4 & 5) Going to try Map 4 again this afternoon but with Duty Bias adjustments to meet boost...

My sensors are covered with PPF and work just fine. XPEL Ultimate Plus. Helps if your PPF guy knows what he's doing and tests your sensors before giving the car back.

I told my dealer I had PPF done when they asked if I had any modifications. They didn't care ?‍♂️

The LC500 is the Supra if Toyota actually made it. Big, beautiful, powerful grand tourer. Funny how people are so upset about the BMW thing when what they want already exists. I mean, the MK4 Supra was a Soarer after all.

Relative to the usual amount of time working on a car takes, it's hardly more ?

Yep, I read on the JB4tech forums that freer flowing downpipe already raises boost/messes with wastegate programming. Stacked with the JB+ that does not have EWG control... It's possible that E could help throttle closures but not for the right reasons. I posted earlier in this thread how the...

Absolutely do not let these clowns touch your Map 6 settings ?

I personally wouldn't let them touch my car again, but good luck! Remember, they're only sorry because they got caught. Your time and money is better spent having someone like @Jesse DaBears do your custom tuning.

I appreciate your hesitation to prevent a false-outrage, but you're doing the right thing sharing that info here. What's interesting is that the dyno charts from the video look legit for a 2020 Supra base and JB4. Wonder whose those are? ?

I don't buy it. The dyno chart you shared here has your specific car and mods labeled on it. By the way, it clearly says 2J Racing ;)

FYI - had the same issue with a few JB4 maps, so i got to datalog it. It is the throttle closing due to overboosting. Do you happen to have an aftermarket downpipe? I think that is partly why the issue got worse for me. Hard to mitigate without the wastegate control that JB4 offers.

Nah don't even give them credit for that. The Yellow line is there on the B58 JB4 page at BMS, not on the Supra one. check the link in my last reply. And if they paid for dyno time....

Well, Map 4 worked really well for me yesterday. Smoother than the handful of Map 6 iterations I tried, as well as Map 1-3. https://datazap.me/u/coloneladama/2023-supra-mt-map-4?log=0&data=1-4-11-14-18-25-26-27-28 Boost is slightly under target up top, so maybe the wastegate adaption is still...

Definitely name drop. They scammed you straight up, I recognize the dyno chart from the BMS website... they just blanked out where it says "Z4". https://burgertuning.com/products/b38-b46-b48-b58-bmw-jb4 Sorry to hear that man... They did the equivalent of 1 hr work throwing the JB4 on with no...

Post your Map 1/2 logs on datazap and share em here!

Thanks for sharing, Jesse! I plan to mess around with it some more this week. Appreciate the advice!:thumbsup:

i pulled off 4.7% from Toyota this year. Thought that is pretty good for Feb 2023. I'm sure there's nothing under 5 now.

Yes, correct. For my purposes, its just a baseline to start with. Don't do this if you don't know what the settings are or aren't familiar with the JB4.

Unfortunately, the throttle was surging again this AM, just like it did with my JB+. Not very happy about that, seeing as yesterday's first JB4 drive was smooth as butter (but so was the JB+) Here's my log. It definitely needs some work. Remember this is just the previous owner's map 6 -...