10-29-2019, 12:05 PM | #1 |
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stock 2019 M2C dyno results
dyno day a couple days ago on sunday. 2 pictures, 1 adjusted to SAE and 1 shows actual output at current temperature and ambient pressure. "correction" was 4%. owners says this dyno typically reads 3% lower than a mustang dyno. interesting numbers for stock!
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10-29-2019, 12:11 PM | #2 |
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That definitely does not read lower than a Mustang dyno. I would say thats on par with Dynojet.
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10-29-2019, 12:53 PM | #3 |
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10-29-2019, 01:31 PM | #4 |
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Thanks for sharing!
Any idea what gear they ran these in? Interesting info, not because of the continued evidence that BMW underrates most of their cars, but because this might be the first MT M2c dyno run I've seen. Rule of thumb I've seen on modern DCT vs MT still says DCT takes ~2-3% efficiency hit. Now I have to go dig up all those DCT dyno runs while I'm eating lunch to see! ....yeah, maybe I have to acknowledge GF's claim that I am still an engineering geek at heart <edit> before I start another DCT vs MT war, I should add - That's not my intent. DCT is going to be quicker. End of story. Just curious if the 2-3% difference tracks to an 8-12hp difference on the dyno between the 2 Last edited by BlkSVT; 10-29-2019 at 01:41 PM.. |
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10-29-2019, 01:45 PM | #5 | |
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10-29-2019, 04:54 PM | #6 | |
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BTW, 430 whp is on par with what other dynos read this little monster of a car. Check out the Fuel-It dyno results.
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10-30-2019, 02:10 AM | #7 | |
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They are both quick times regardless though. |
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10-30-2019, 01:33 PM | #8 | ||
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10-30-2019, 01:48 PM | #9 |
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After talking with another owner, I'm suprised to notice the power drop off at 5700 rpms. This car is suppose to be linear in horse power to almost ~7k rpms i thought?
could it be starving for air in this dyno testing condition or knock sensors reducing power? the way the dyno is setup or am i just crazy? |
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10-30-2019, 01:53 PM | #10 |
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...right, for click bait
Anyway, this really makes me wonder what the CS tune will be. I don't think the car really needs more power, 245 & 265 tires are just too narrow for the power it's making anyway. You can easily break the tires in second or third most of the time.
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11-13-2019, 07:50 AM | #12 |
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11-13-2019, 09:45 AM | #15 | |
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11-13-2019, 02:57 PM | #16 |
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makes you wonder huh. I would like to do another dyno run on a different machine and compare tbh. it just seems to high for stock lol
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11-13-2019, 03:28 PM | #17 | |
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Here's 428hp https://f87.bimmerpost.com/forums/sh....php?t=1664876 412 hp (with an aftermarket mid-pipe but otherwise stock) https://f87.bimmerpost.com/forums/sh...highlight=dyno 410 hp https://f87.bimmerpost.com/forums/sh...highlight=dyno 381 hp, the lowest i've seen https://f87.bimmerpost.com/forums/sh....php?t=1584436 386 hp according to Dinan. https://www.dinancars.com/product/d9...83-m4-f87-m2c/ |
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11-13-2019, 04:07 PM | #18 |
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Needless to say, the car has substantially more than 406 hp.
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11-13-2019, 04:54 PM | #19 | |
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Given the wide variances out there I'm going with 400 whp. What's the M4 S55 putting out in comparison? |
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11-13-2019, 05:09 PM | #20 |
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Figure 15% drivetrain loss for the car is reasonable, so:
crank HP ~ wheel HP / 0.85 430HP at the wheels would be about 505HP at the crank. Seems insanely high to me, but then again BMW is all over the place with their tunes and ratings. Dinan's number would be around 450HP crank. |
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11-14-2019, 03:29 PM | #21 | |
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11-18-2019, 11:48 AM | #22 | ||
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I will say the factory CS tune (not as much top end as CS+) is a noticeable increase and just about maximum for the tires. CS+ with good and wider rubber is probably the sweet spot. |
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