JCW NM Engineering Power Module
#1
NM Engineering Power Module
I have the NM module and I have been pleased with its performance. I have run it on the low setting since I originally installed it. I am planning on running 100 octane fuel and switching it to the high setting. Have any of you already done this? If so, is there a learning period required for it to fully realize the additional power?
#5
#7
Here is the information from NM.
The ECU will adapt to the 100 octane almost instantly, say a few minutes depending on how much 93 fuel left in the system. The same thing will happen when you switch back to 93. Don’t worry about switching the setting right away, do it at your convenience. Our module still lets the ECU to adapt to different conditions, including ambient temperature, fuel grade/quality, different drivers, etc. it is not that sensitive. If it sees something it doesn’t like the safety protocols will kick in and let you know
The ECU will adapt to the 100 octane almost instantly, say a few minutes depending on how much 93 fuel left in the system. The same thing will happen when you switch back to 93. Don’t worry about switching the setting right away, do it at your convenience. Our module still lets the ECU to adapt to different conditions, including ambient temperature, fuel grade/quality, different drivers, etc. it is not that sensitive. If it sees something it doesn’t like the safety protocols will kick in and let you know
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#12
Please post results of the dyno run....will be interesting! I can buy 100+ octane fuel for $7/gal near me. Not sure if I will bother tho.
#15
#18
Do you all remove the NM power module before you bring your car in for routine maintenance? I know a number of dealers are actually selling them, so I would think they'd be hard pressed to raise a stink about it. But, I'm just curious what people that actually own it do. Thanks
#19
If the dealers are selling the module they should check with BMW and see what their corporate position is on these. If they, BMW, are OK with it why wouldn't they just sanction ECU remapping? There would be more power available through that route and the dealerships and BMW would realize a larger profit margin. That said, I am satisfied with my current setup as it provides the power that I want and anything more would be excessive for me as I would not be able to use it competently. The vagaries or perhaps infirmities of age are a consideration! I am still planning on the 100 octane adventure when my schedule permits.
#20
#22
It's been a number of months, so I don't remember if I asked about price. I was just curious as to whether a reputable dealership would be selling them. The parts guy was very matter of fact as to their availability. I wish I could remember if I broached the whole warranty issue, but I don't think it really matters. I don't think they would be selling them if there was or would potentially be a question about voiding a warranty. Their potential liability could be big since they are implying there aren't any issues by the very fact that they are selling them.
#24
I definitely called a dealer that was selling them.
#25
So I have a little confession. I could be a bit in the stubborn side sometimes and wanted to believe running NM on high with 91 octane yields better result that it would running it in low with the same fuel. I must say that running 100 octane on high is a beast. I fill up the tank about once or twice a month with 100 octane but mostly run on 91.
Setting it on low today, it just felt more responsive and the power felt more stable and gradual. Running it on high, it almost feels like a slight lag but the torque and power is there. In conclusion, I'm keeping it on low until I put race fuel.
Warning (all measurements are done with a highly calibrated butt dyno. Accuracy may be differ from person to person. It's accurate to me and my car only)
Setting it on low today, it just felt more responsive and the power felt more stable and gradual. Running it on high, it almost feels like a slight lag but the torque and power is there. In conclusion, I'm keeping it on low until I put race fuel.
Warning (all measurements are done with a highly calibrated butt dyno. Accuracy may be differ from person to person. It's accurate to me and my car only)