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      05-05-2021, 04:02 PM   #1
eurocarfan100
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BMW doctors video on Increasing Power through changing Powerclass?

What is everyone's opinion on BMW doctor video on upgrading power and speed through programming using NCSExpert to chnage the power class?



I did the Bimmerlabs 330i tune to increase power. Is this needed? I ordered a 3 stage manifold which is coming soon and cannot wait! BMW doctor says this increases full power of the car and also removes the speed limiter or increases it. BMW wants to keep this a secret according to him to sell high trim cars.
Is the Bimmerlabs 330i tune enough or do we need to do this?
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      05-06-2021, 12:45 AM   #2
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Quote:
Originally Posted by eurocarfan100 View Post
What is everyone's opinion on BMW doctor video on upgrading power and speed through programming using NCSExpert to chnage the power class?



I did the Bimmerlabs 330i tune to increase power. Is this needed? I ordered a 3 stage manifold which is coming soon and cannot wait! BMW doctor says this increases full power of the car and also removes the speed limiter or increases it. BMW wants to keep this a secret according to him to sell high trim cars.
Is the Bimmerlabs 330i tune enough or do we need to do this?
BWW "Doctor" needs to lay of the coke. He's a massive smackhead and talks a load of bullshit. Sadly he probably sucks many stupid people into spending money with him.
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      05-06-2021, 03:38 AM   #3
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Power class "klasse_2" seems to be correct for 3 stage intake manifold engine (N52B30O0/N52B30O1):



But I wonder does it impact anything?
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      05-06-2021, 07:44 AM   #4
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Originally Posted by EvaBmw View Post
Quote:
Originally Posted by eurocarfan100 View Post
What is everyone's opinion on BMW doctor video on upgrading power and speed through programming using NCSExpert to chnage the power class?



I did the Bimmerlabs 330i tune to increase power. Is this needed? I ordered a 3 stage manifold which is coming soon and cannot wait! BMW doctor says this increases full power of the car and also removes the speed limiter or increases it. BMW wants to keep this a secret according to him to sell high trim cars.
Is the Bimmerlabs 330i tune enough or do we need to do this?
BWW "Doctor" needs to lay of the coke. He's a massive smackhead and talks a load of bullshit. Sadly he probably sucks many stupid people into spending money with him.
+1

Just disregard literally everything this guy says on youtube. He is a clickbait troll giving out bad info.
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      05-06-2021, 09:54 AM   #5
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Makes me wonder if these posts from new members are really the Dr. trolling us. Needs more clicks....

The other thought I have is how many people take U Tube videos' way to seriously, I have a recent hire in the office and he keeps commenting about things he learned on U tube and argues the advice given to him by his very experienced colleagues.
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      05-06-2021, 10:36 AM   #6
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Quote:
Originally Posted by rjahl View Post
Makes me wonder if these posts from new members are really the Dr. trolling us. Needs more clicks....

The other thought I have is how many people take U Tube videos' way to seriously, I have a recent hire in the office and he keeps commenting about things he learned on U tube and argues the advice given to him by his very experienced colleagues.
I often get comments on my YouTube videos asking questions that are pretty common knowledge on this forum.

Makes me think alot of young guys don’t know how to Google! The answers would come up on Google immediately, and much faster than typing the question on a YouTube video comment page and waiting/hoping for a response.
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      05-06-2021, 10:36 AM   #7
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Quote:
Originally Posted by rjahl View Post
Makes me wonder if these posts from new members are really the Dr. trolling us. Needs more clicks....

The other thought I have is how many people take U Tube videos' way to seriously, I have a recent hire in the office and he keeps commenting about things he learned on U tube and argues the advice given to him by his very experienced colleagues.
There are some great DIY videos on youtube, but the key is getting information from multiple sources.
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      05-06-2021, 10:38 AM   #8
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Not interested in the video, but interested to know what does POWER_CLASS parameter do?
It does not impact DME work in any way?
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      05-06-2021, 10:57 AM   #9
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it's a check used so you can't buy a lower model car, and get the benefits of the higher model car with a flash of one of the stock calibrations (like, 328i to 330i).

If the parameter c_state_pow_clas_veh doesn't match what's stored in the CAS and internal memory of the DME, the engine will still run but it will run with reduced power in limp mode.

The ways around it are to change the power class in the tune to what's already inside the DME/CAS, or disable the check entirely. The 330i tune for the 328i is actually a modified stock 328i calibration, with all of the important settings copied from the 330i, but I still disable the check because it's just safer (since people often try to change it in the CAS, not realizing it won't do anything, and can actually make things worse).

This mattered more when these cars were new, a 325i was a lot cheaper than a 330i. You could have bought a 3-stage manifold and flashed the 330i tune for 1/10th of the cost difference, except people didn't know about the power class check so it ran in limp mode (there are many other differences between the two cars that make the 330i better, but most people only care about the power). People just assumed for a long time it couldn't be done.
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      05-06-2021, 08:42 PM   #10
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Quote:
Originally Posted by hassmaschine View Post
it's a check used so you can't buy a lower model car, and get the benefits of the higher model car with a flash of one of the stock calibrations (like, 328i to 330i).

If the parameter c_state_pow_clas_veh doesn't match what's stored in the CAS and internal memory of the DME, the engine will still run but it will run with reduced power in limp mode.

The ways around it are to change the power class in the tune to what's already inside the DME/CAS, or disable the check entirely. The 330i tune for the 328i is actually a modified stock 328i calibration, with all of the important settings copied from the 330i, but I still disable the check because it's just safer (since people often try to change it in the CAS, not realizing it won't do anything, and can actually make things worse).

This mattered more when these cars were new, a 325i was a lot cheaper than a 330i. You could have bought a 3-stage manifold and flashed the 330i tune for 1/10th of the cost difference, except people didn't know about the power class check so it ran in limp mode (there are many other differences between the two cars that make the 330i better, but most people only care about the power). People just assumed for a long time it couldn't be done.
Oh thatís how you coded it! A 328i calibration modified with 330i settings! Is this manifold swap and tune giving euro 330i power to anyone? Some claimed they got 272 at the flywheel. 330i also had some special exhaust and a few extra features. Bmw Doctor clearly looks like a fraud or crackhead trying to sell his stuff!
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      05-06-2021, 09:16 PM   #11
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Quote:
Originally Posted by rjahl View Post
Makes me wonder if these posts from new members are really the Dr. trolling us. Needs more clicks....

The other thought I have is how many people take U Tube videos' way to seriously, I have a recent hire in the office and he keeps commenting about things he learned on U tube and argues the advice given to him by his very experienced colleagues.
This actually has a lot of merit....
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      05-07-2021, 06:29 PM   #12
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Originally Posted by eurocarfan100 View Post
Oh thatís how you coded it! A 328i calibration modified with 330i settings! Is this manifold swap and tune giving euro 330i power to anyone? Some claimed they got 272 at the flywheel. 330i also had some special exhaust and a few extra features. Bmw Doctor clearly looks like a fraud or crackhead trying to sell his stuff!
330i us spec. the 330i euro had the n53 which with direct injection and higher compression makes 272hp. The us spec 330i is 255
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      05-07-2021, 07:14 PM   #13
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They also had N52 330i's in the EU market, so that's not true. N53 came out a little later.

Highest spec stock N52s make 268bhp - barely any difference from the N53.
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      05-07-2021, 07:41 PM   #14
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What cars use these 268hp N52s? Is that all from just tuning? If so it seems they make stock the same added power that people get with custom tuning with the 3 stage. I was under the impression that n52s went to 260 and everything higher were mislabeled N53 engines
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      05-07-2021, 08:12 PM   #15
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Z4 3.0si, X3, X5, 7 series (EU only).
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      05-07-2021, 08:24 PM   #16
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That's a lot more cars than I thought, guess the US z4 3.0si got the short end of the stick. I could certainly use 268hp. Going to check if any of those cars came with the GM6, maybe we can get an even better transmission calibration from a 268hp car instead of the x3 3.0si one that's available now that made what 260?
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      05-07-2021, 09:09 PM   #17
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Quote:
Originally Posted by E92_William View Post
That's a lot more cars than I thought, guess the US z4 3.0si got the short end of the stick. I could certainly use 268hp. Going to check if any of those cars came with the GM6, maybe we can get an even better transmission calibration from a 268hp car instead of the x3 3.0si one that's available now that made what 260?
I agree! Could use 268 for sure. I think maybe use the code from these cars for the ecu. Yesterday, hassmaschine explained he used the stock 328i tune and copied the code from the 330i onto the 328i stock code. Maybe copy it from the x3 3.0si or z4 3.0si, maybe we can get 268 hp? I am not sure how it works, but what if its possible? Like the x3 3.0si transmission tune doesn't work on the LCI models due to the security features. We have to see if its applicable on all.
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      05-08-2021, 08:03 PM   #18
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They did have different exhaust, which could contribute, but the engine itself is identical. I've looked at the calibrations, it's not obvious what the exact changes are for power, because there are many, many other differences between different models (that have nothing to do with extra power). Really, it wouldn't be any better than getting a custom tune on a 330i - you're going to be doing the same things. VANOS, torque maps, valve lift, fuel, etc.
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