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M2 Technical Topics > N55 Engine / Drivetrain / Exhaust / Bolt-ons / Tuning > M2 stock dyno testing on 97 and 99 RON Fuel

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      10-11-2016, 11:58 AM   #1
Imran@Evolve
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M2 stock dyno testing on 97 and 99 RON Fuel

We finally got our running in service done at 950 miles (couldn't wait any longer!) and drove straight from the dealer onto the dyno. During the the running in we mostly used BP Ultimate 97 RON (equivalent to US 92 oct) and the first dyno was carried out on this fuel. We then filled up with Shell V Power 99 RON (equivalent to around 93/94 oct) is our normal fuel of choice.

The result is not completely scientific but we tried to make sure the conditions were as similar as possible. It gives an indication of the difference the fuel makes on a stock car.

evolve_bmw_f87_m2_lowered_dyno by Evolve Automotive, on Flickr

Our dyno is a DynoDynamics machine which reads much lower than Dynojets. We do not use a correction factor to make them ready like Dynojets. The calculated flywheel BHP is very close to factory quote figures.

We will get some VBOX figures as stock so we have a baseline of dyno and real world figures before after various tuning parts are added.

Flywheel Power

BMW M2 Dyno Graph by Evolve Automotive, on Flickr

Wheel Power

BMW M2 Dyno Wheel by Evolve Automotive, on Flickr

So there is a difference of 6 BHP peak and 13 BP in the midrange and around 15 lb.ft torque through some of the power band.

For reference a stock M1/235i will make between 333-345 Flywheel BHP on our dyno. We will get some comparison graphs up soon so you can see the difference.

Over the coming weeks/months we will be developing the ECU tune (in beta testing), FMIC and downpipes so will provide data on these as we progress.
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      10-11-2016, 01:21 PM   #2
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What an interesting comparison, that's a noticeable increase with different fuel grades. You can see the increase mid range, right where the timing would be getting pulled on the lesser grade fuel and then again at top end. What's the dip just after 5000?do you think it's the ECU pulling timing or the dyno?
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      10-12-2016, 05:06 AM   #3
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Quote:
Originally Posted by kiysersosae View Post
What an interesting comparison, that's a noticeable increase with different fuel grades. You can see the increase mid range, right where the timing would be getting pulled on the lesser grade fuel and then again at top end. What's the dip just after 5000?do you think it's the ECU pulling timing or the dyno?
We will carry out some more logging but I don't think it should be timing pull on 99 RON. It is there on 97 RON too so I would assume its just the dyno.
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      10-12-2016, 05:37 AM   #4
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Looking forward to seeing further developments with this (especially the before and after Vbox runs).
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      10-12-2016, 05:43 AM   #5
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Quote:
Originally Posted by Vtec Abuser View Post
Looking forward to seeing further developments with this (especially the before and after Vbox runs).
Means more to us than dyno graphs to be honest. Can't beat real world figures especially when our dyno reads so low
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      10-12-2016, 09:57 PM   #6
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Looking forward to updates from you guys!
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      10-13-2016, 02:56 AM   #7
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Quote:
Originally Posted by Imran@Evolve View Post
Means more to us than dyno graphs to be honest. Can't beat real world figures especially when our dyno reads so low
Me too.. They need to be verified/corrected runs though, otherwise they can be just as misleading as some dyno runs.

This site is a good start www.vboxverify.com but Dbsnanned corrected files are as good as you can get IMO.

When are you doing the stock runs and what sort of ranges are you looking at?

0-60
0-100
100-200
30-130
60-130
1/4 mile?
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      10-13-2016, 07:08 AM   #8
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Quote:
Originally Posted by Vtec Abuser View Post
Me too.. They need to be verified/corrected runs though, otherwise they can be just as misleading as some dyno runs.

This site is a good start www.vboxverify.com but Dbsnanned corrected files are as good as you can get IMO.

When are you doing the stock runs and what sort of ranges are you looking at?

0-60
0-100
100-200
30-130
60-130
1/4 mile?
Yeah i've done plenty with our F10 M5 so know whats up

100-200 KPH and 60-130 we will be looking at.

Will take it to Santa Pod at some point to do some 1/4's.
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      10-14-2016, 06:55 AM   #9
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Yeah seen the M5 runs mate. Pod will be good too. I shall be taking mine there when it comes as I am a regular.. ha
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      10-15-2016, 05:02 PM   #10
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      10-17-2016, 04:51 AM   #11
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Imran@Evolve how you getting on with the ECU tune etc? I've got a pile of mods waiting for after my break in period and wondered how youre going about the tune. Will you be using a piggyback or aftermarket ECU?
What mods are you making?
What figures do you expect to achieve?
Thanks in advance!
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      10-17-2016, 09:43 AM   #12
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Quote:
Originally Posted by canerveli View Post
Imran@Evolve how you getting on with the ECU tune etc? I've got a pile of mods waiting for after my break in period and wondered how youre going about the tune. Will you be using a piggyback or aftermarket ECU?
What mods are you making?
What figures do you expect to achieve?
Thanks in advance!
We've completed our Stage 1 ECU Tune which not surprisingly makes around the same as our M135i Tune which is around 394 BHP (Flywheel). The M2 is pretty well tuned from the factory. Its basically a factory ECU tuned M135i so not much headroom. For anyone wanting serious power a Hybrid turbo will have to be in their plans.

We will be developing Downpipes and an FMIC for this model.
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      10-17-2016, 09:47 AM   #13
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Quote:
Originally Posted by Vtec Abuser View Post
Yeah seen the M5 runs mate. Pod will be good too. I shall be taking mine there when it comes as I am a regular.. ha
Will take it to the pod as soon as there is a RWYB date available.
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      10-17-2016, 02:26 PM   #14
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Quote:
Originally Posted by Imran@Evolve View Post
We've completed our Stage 1 ECU Tune which not surprisingly makes around the same as our M135i Tune which is around 394 BHP (Flywheel). The M2 is pretty well tuned from the factory. Its basically a factory ECU tuned M135i so not much headroom. For anyone wanting serious power a Hybrid turbo will have to be in their plans.

We will be developing Downpipes and an FMIC for this model.
So right around +25hp on 99RON?
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      10-17-2016, 03:10 PM   #15
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Quote:
Originally Posted by Imran@Evolve View Post
We've completed our Stage 1 ECU Tune which not surprisingly makes around the same as our M135i Tune which is around 394 BHP (Flywheel). The M2 is pretty well tuned from the factory. Its basically a factory ECU tuned M135i so not much headroom. For anyone wanting serious power a Hybrid turbo will have to be in their plans.

We will be developing Downpipes and an FMIC for this model.
First of all, great results.

Secondly: Is it safe to run the turbo up to the max like this for days to day driving, for non track applications? Would the stage 1 be the way to go without changing anything else I. E. Intercooler, dp,.. Or would you recommend these? Also, do you know the volumetric efficiency of the turbo? Just wondering if it's being maxed out.
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      10-17-2016, 03:47 PM   #16
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+25hp on a stock F87 is actually ok. Interested what full bolt ons + stage 2 tune can grab. +70 would be awesome. Get us to the 450hp region on the stock turbo and you'll be considered a God lol
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      10-18-2016, 12:44 PM   #17
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Quote:
Originally Posted by LBBDrew View Post
So right around +25hp on 99RON?
Thats correct.

I will get the graphs up as soon as I can.
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      10-18-2016, 12:48 PM   #18
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Quote:
Originally Posted by kiysersosae View Post
First of all, great results.

Secondly: Is it safe to run the turbo up to the max like this for days to day driving, for non track applications? Would the stage 1 be the way to go without changing anything else I. E. Intercooler, dp,.. Or would you recommend these? Also, do you know the volumetric efficiency of the turbo? Just wondering if it's being maxed out.
Yes its perfectly safe at these levels as its what we have been running on M135i/M235i's. Yes stage 1 is for an otherwise stock car but the addition of a downpipe and intercooler would help release more power and make the car more consistent in delivering the power time after time.

So far we think this is the most that can come from the stock set up.
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      10-18-2016, 12:49 PM   #19
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Quote:
Originally Posted by Norcalmav23 View Post
+25hp on a stock F87 is actually ok. Interested what full bolt ons + stage 2 tune can grab. +70 would be awesome. Get us to the 450hp region on the stock turbo and you'll be considered a God lol
I don't think we will get plus 70 BHP with just bolts on TBH. Its early ays so lets see how we progress.
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      10-18-2016, 02:17 PM   #20
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Quote:
Originally Posted by Imran@Evolve View Post
I don't think we will get plus 70 BHP with just bolts on TBH. Its early ays so lets see how we progress.
Fair enough, appreciate the honesty!
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      10-18-2016, 04:22 PM   #21
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Quote:
Originally Posted by Imran@Evolve View Post
Yes its perfectly safe at these levels as its what we have been running on M135i/M235i's. Yes stage 1 is for an otherwise stock car but the addition of a downpipe and intercooler would help release more power and make the car more consistent in delivering the power time after time.

So far we think this is the most that can come from the stock set up.
Ace news, can I have one please no seriously, when will it be ready? Cheers
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      10-19-2016, 04:24 AM   #22
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Quote:
Originally Posted by kiysersosae View Post
Ace news, can I have one please no seriously, when will it be ready? Cheers
Its ready! Also includes an OBD II cable so you can flash your ECU via OBD once we have unlocked it during the first flash.
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