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05-10-2010, 04:50 PM | #1 |
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First N55 Tuned Dynos - Still BETA and only STAGE-1!!
Here are the first tuned dynos for the N55 (Stage-1). BMS has really kicked it into high gear with development so I am very excited to share these with you guys. Its still a ways from being finalized but its more then just progress now as we have some tangible results, even though they are preliminary right now. Just excited with the developments so wanted to keep everybody in the loop about the progress.
Runs were done on 91 and started @ 1500rpm. Notice how long it took to reach peak TQ. Some significant lag on this platform which hopefully will be addressed soon Enjoy Mike . |
05-10-2010, 06:09 PM | #2 |
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ummmm, where is that nice, fat, flat torque curve, or should I say plain, that we have in the N54?
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05-10-2010, 06:58 PM | #5 |
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yeah...bias engine haters who have lived with the N54s for a bit now..I mean, it's still a BMW so wtf?
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05-10-2010, 07:14 PM | #7 |
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05-10-2010, 10:15 PM | #8 | |
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05-11-2010, 07:28 AM | #10 |
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not bad considering the short time the N55 has been out
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05-11-2010, 08:23 AM | #11 | |
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That stock curve isn't all that difference than what you see on an N54 on a chassis dyno if you start that low. The N54 is building to peak a little sooner, but they're both rolling off after 5k RPM. |
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05-11-2010, 10:56 AM | #12 |
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Nice work, guys.
Wow, stock peak TQ numbers look awefully high!
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05-11-2010, 04:48 PM | #13 |
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Community forgive me. I was not knocking the BMS guys and the super work they do, I was merely referencing the stock curve. It has a lot more fluctuation in it than the N54 does. I agree the drop off point is the same between the two, but I was hoping that the torque would be as flat on the N55 as the N54. I have high hopes for this motor since it has the best of everything in it. And of course it is a BMW.....
No hating, nothing of the sort. Was just wondering and I apologize if it came off smart-allecky.....
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05-22-2010, 06:52 PM | #15 |
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Great, More false advertising of the N55 from BMW. The list just keeps growing. What's next?
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05-22-2010, 07:03 PM | #16 |
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This is tuned, not stock. A tuned car will have a higher peak torque when the higher amount of boost comes in.
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05-22-2010, 07:50 PM | #17 |
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Those are the numbers to the wheels...BMW advertises numbers to the crank.
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05-22-2010, 08:15 PM | #18 | |
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05-23-2010, 10:24 AM | #19 |
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Need to overlay a stock N54 and N55 trace to see the difference in a definite way. There does seem to be a dip around 4000 on the OE run that you dont see on an N54 - I suppose that correlates somehow to the operations of valvetronic?
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