Testing the Beast (iND F10 M5 dyno, quarter mile, road course) (with video)

[Ilia@IND]

     Featured on BIMMERPOST.com

The first step in developing our F10 M5 project car is gathering baseline data. In the upcoming weeks IND will work to gather information from the dynamometer, the drag strip, and a local road course.

527 wheel hp


Today we visited AMS Performance, our technology partner for this project, to dyno test the M5 in stock form. BMW does not fail to impress, as the sound and performance of our M5 during the dyno test was stellar even before we installed any modifications!

The M5 roared to life on AMS’ dynojet with a mere 450 miles on the odometer and we looked on in anticipation. The original exhaust is somewhat conservative in sound and tone but the S63tu engine did still create a promising roar as our M5’s wheels spun the dyno rollers for the first of what is sure to be many tests. We were excited to see that the M5 performed flawlessly, even after 40 minutes of dyno runs. Best of all was of course the power number- 527 wheel horsepower!

Of course, a power output figure is not relevant without weight! As an added bonus we set the M5 on AMS’ Longacre scales to get a good real-world weight figure. With a half a tank of gas our M5 weighed in at a “stately” 4,313lbs! We will be addressing the car’s weight very soon.





We performed datalogging of intake air temperature, throttle position, boost pressure, engine oil temperature, and water temperature to start. We will continue to gather data as we test the M5 and will use the information to further develop and perfect the super sedan. Stay tuned for updates!

[Omar@VelosDesignwerks]

Sounds good, a lot of alpine white M5's out there

[turbologist]

Looking forward to this...

[Rotorocious]

What gear?

[Ilia@IND]

We used 4th and 3rd gear, but found that the runs in 3rd gear were substantially more consistent. 4th gear runs would result in ~15 horsepower deltas between runs as well as noticeably different power curves and areas under the curve, while 3rd gear runs remained very consistent throughout.

[jmh]

So I wasn't too far in my guess
Nice work , looking forward to the progression

[chillin4now]

So I guess it is safe to say that the 20-25% less power rumor prior to breakin service is BS? Assuming that you skipped that step?

[M3 Piotr]

Impressive numbers. It would mean that the car in stock form is over 600hp at the crank? Would BMW underestimate the HP that much on the car?

[Rotorocious]

Originally Posted by Ilia@IND

We used 4th and 3rd gear, but found that the runs in 3rd gear were substantially more consistent. 4th gear runs would result in ~15 horsepower deltas between runs as well as noticeably different power curves and areas under the curve, while 3rd gear runs remained very consistent throughout.

Maybe because the longer pull created more heat soak.
5th gear is 1:1.
Even with the longer pull we made more power in 5th.

[stealth.pilot]

Originally Posted by M3 Piotr

Impressive numbers. It would mean that the car in stock form is over 600hp at the crank? Would BMW underestimate the HP that much on the car?

I think so. At this point I've seen almost a dozen dyno runs with the same results.

[Ilia@IND]

Originally Posted by philly-dee

So I guess it is safe to say that the 20-25% less power rumor prior to breakin service is BS? Assuming that you skipped that step?

I don't believe that the car has reduced power during the break-in period. BMW often runs cars to redline on chassis dynos before shipping cars to the customer and ultimately break-in is complete very soon after an engine is first run.

With that being said, I would still suggest that our clients follow BMW's suggested break-in procedure simply from a liability and warranty standpoint, but our own M5 will be modified well beyond the point where any future resale is possible, so break-in is not a concern for us.

I do believe that 4th gear's longer operating time on the dyno resulted in a touch more compensation for temperature and heat soak. This is likely why results were inconsistent in 4th. Ultimately our goal was to obtain a repeatable and consistent data set that we can use as a benchmark against future tests.

Originally Posted by stealth.pilot

I think so. At this point I've seen almost a dozen dyno runs with the same results.

I would agree. Many of our clients are making well over 500 wheel horsepower on dynojet dynos.

[flipm3]

Great data collection guys! I can't wait to see this project take full form.

Once again, goes to show that BMW underrates their boosted engines!

[VCMpower]

Solid M V8!

[BMW1986]

So amazing! When will you dyno with the eisenmann on the car?

[GOLFFRR]

My new desktop wallpaper

awesome guys! IND def is going to bring it to another level with this project as they always do.

Very impressive numbers bone stock. car is a monster

[bimmerjph]

I was thinking that it was closer to 500 in an earlier test.

I will say this again. I don't think necessarily that the engines are underrated. I think BMW has made the drivetrains substantially more efficient.

[red-sauerkraut]

I love boosted motors on the dyno, sounds so awesome!

Thanks for sharing!!

[IMG]

Great work as always IND !
AMS been in the FI and mod business for years,great to see you guys doing work together !

[biglare]

Originally Posted by img

Great work as always IND !
AMS been in the FI and mod business for years,great to see you guys doing work together !

+1


I cannot wait to see what else IND has in store for this M5 Beast!

[LACSTER]

STBMW Repping all the way out in the eastcoast!!!

[flinchy]

560 crank horsepower down to 527.. A bit of under rating but not HUGE

What type of dyno was it? Could be a high reading dyno.. So this is all totally believable :/

[aus]

Originally Posted by bimmerjph

I was thinking that it was closer to 500 in an earlier test.

I will say this again. I don't think necessarily that the engines are underrated. I think BMW has made the drivetrains substantially more efficient.

More efficient by how much???
And how would they make these improvements?

Originally Posted by flinchy

560 crank horsepower down to 527.. A bit of under rating but not HUGE

What type of dyno was it? Could be a high reading dyno.. So this is all totally believable :/

What correction factor are you using?
I've always seen people use 1.21 on BMW's??

E9x M3's typically dyno around 330-340, which works out perfectly.
BMW blown engines are WAY underrated. The N54's seem to be pushing 350 crank HP and the 1M even more. The N55 seem to be putting out a little less than the N54's, but still more than the 300 HP it's listed at.

This engine is CRAZY underrated!! But the torque definitely drops off as the revs go up.
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