[425M2]

Just dyno'd my car. It's a 2017 BMW M2 running BM3 OTS Stage 2 map (91 oct, v5.4). My car has a catless Wagner DP and Wagner Evo 2 comp FMIC. Gas was WA state pump gas, 92 oct. Stock M2 will dyno around 330whp/380-390 ft/lbs for comparison. Thoughts? Car gained +35whp and +10 ft/lbs going from stock to stage 2.

EDIT: These dyno pulls were done in 5th gear (DCT) and in "dsc off" mode.

[Xchange43]

Originally Posted by 425M2

Just dyno'd my car. It's a 2017 BMW M2 running BM3 OTS Stage 2 map (91 oct, v5.4). My car has a catless Wagner DP and Wagner Evo 2 comp FMIC. Gas was WA state pump gas, 92 oct. Stock M2 will dyno around 330whp/380-390 ft/lbs for comparison. Thoughts? Car gained +35whp and +10 ft/lbs going from stock to stage 2.

Thx well this is not a lot .. do you feel it?

[425M2]

Originally Posted by Xchange43

Thx well this is not a lot .. do you feel it?

Yea, I expected a little better numbers to be honest. But it is what it is. The car does feel much better/faster than stock, so can't complain too much I guess.

[GerardzM]

Octane is definitely killing it for you.

But if the car feels healthy/better to you as mentioned
that's what matters!

[NitroBMW]

[QUOTE=GerardzM;23652387]Octane is definitely killing it for you.

This is a FACT! I've been through a lot of Lucas octane boost and data recording on my M240i and the M2. Such a BIG difference when I mix 91 and 100 for a 92.0 octane blend on the stage 2 91 map.

I have found that CA 91 premium gas is really 89-90 at best.

Ordering a drum of Torco 108 today - 7-3 ratio will make the M2 happy on the BM3 Stage 2 93 Map... I know.

[PLF69]

+3 about octane

I've tried a lot of things in my M235i and the best results were when I mixed real race gas in.

[SeanWRT]

You guys are crazy. It's very unlikely to be the octane issue (or any issue at all), since OP is running 92oct on 91 map. Things worth asking are ambient temp, humidity. Which seems also normal as power/torque curves shows from his dyno plot.

Pay attention to correction factor of SAE, switch to STD, which is what Bimmerpost guys prefer, instantly power/torque figure bumps up by 10 whp.

There is another 10+whp or so in 93oct map, which makes around 390 with correct octane and properly performed dyno runs.

I'll say op absolutely put down strong numbers already.

[FSociety]

If you didn't dyno your car stock then you have nothing to compare to!
Stop thinking every car is the same

[MTWO]

Great numbers OP. You need a stock dyno from their to compare to, you should’ve switched maps while there. We all use STD correction with BMWs on the forum. Yours is SAE which always reads lower than STD from what I’ve seen myself on my own car and others.

[PackPride85]

Originally Posted by FSociety

If you didn't dyno your car stock then you have nothing to compare to!
Stop thinking every car is the same

This. Can't really see but I bet the area under the curve is much improved even if peak gains are not that much.

[GerardzM]

I thought this was on 91?

[SeanWRT]

Originally Posted by SeanWRT

You guys are crazy. It's very unlikely to be the octane issue (or any issue at all), since OP is running 92oct on 91 map. Things worth asking are ambient temp, humidity. Which seems also normal as power/torque curves shows from his dyno plot.

Pay attention to correction factor of SAE, switch to STD, which is what Bimmerpost guys prefer, instantly power/torque figure bumps up by 10 whp.

There is another 10+whp or so in 93oct map, which makes around 390 with correct octane and properly performed dyno runs.

I'll say op absolutely put down strong numbers already.

In addition to the above my comment - OP's powerband peak at 6k, which is not bad for a stock turbo.

You can push harder at around 5k5 running at fueling limit if octane supports, for like 10~15whp more in peak.

Not worth it.

I can see OP will have power at 6k~7k when the ambient temp goes lower.

[FSociety]

Originally Posted by GerardzM

I thought this was on 91?

Not sure if you realize but 91-92 are the same.
In some North East states for ex Wawa they carry 92 but everything else says 93. So it ends up being some 93 are actually 92ish.

That's why I run 1-2 Gal of E85 on my 93 map got added safety. If I want to run more then I switch to E30 map

[GerardzM]

Originally Posted by FSociety

Not sure if you realize but 91-92 are the same.
In some North East states for ex Wawa they carry 92 but everything else says 93. So it ends up being some 93 are actually 92ish.

That's why I run 1-2 Gal of E85 on my 93 map got added safety. If I want to run more then I switch to E30 map

Ahhh I wasn't aware of that!....well damn, I really hate Cali 91 then.

My fault for assuming the same for OP. I couldn't fathom being stage 2 on 91 with the fuel I have access to.

Damn car already pulls timing bad with the stock tune.

[FSociety]

Originally Posted by GerardzM

Ahhh I wasn't aware of that!....well damn, I really hate Cali 91 then.

My fault for assuming the same for OP. I couldn't fathom being stage 2 on 91 with the fuel I have access to.

Damn car already pulls timing bad with the stock tune.

I mean the 91 oct tune is not going to make the same gains at 93 tune.
Octane quality varies so the tune takes effect to that and will lower or increase numbers.
Doesn't necessarily means its always pulling timing
But if there's heat + low octane it will not give you all the power to keep itself safe (Smart)

Also since there's no logs provided by the OP we dont know anything
If he can provide us the drf files I'd be happy to upload a web graph that display the Temps / etc and STD form, etc
I really urge anyone and only suggest to Dyno when you can do a Stock Pull at the end of the runs with 10-15mins cool down.

PS.. Mistakes I did in the past but learned

[425M2]

Thanks for everyone’s feedback! Some good info in here. Some of you have suggested trying the E30 map, I was under the impression we can’t run an Ethanol mix that high on stock fueling? Thought E15-E20 was the max that we could run.

[FSociety]

Originally Posted by 425M2

Thanks for everyone’s feedback! Some good info in here. Some of you have suggested trying the E30 map, I was under the impression we can’t run an Ethanol mix that high on stock fueling? Thought E15-E20 was the max that we could run.

E15 is fine on 91/93 maps
E25-E30 is what typically M2 EWG tolerates on the E30 OTS

Logging Wide Open Throttle 3rd gear 2500rpm will and full 4th gear will tell you if you can run what and where

[PLF69]

Originally Posted by FSociety

E15 is fine on 91/93 maps
E25-E30 is what typically M2 EWG tolerates on the E30 OTS

Logging Wide Open Throttle 3rd gear 2500rpm will and full 4th gear will tell you if you can run what and where

I was asking myself the question if you log in 3rd or 4th with the DCT since with the ZF8 the 4th is the right gear ?

I know all MT its 3rd

[FSociety]

Originally Posted by PLF69

I was asking myself the question if you log in 3rd or 4th with the DCT since with the ZF8 the 4th is the right gear ?

I know all MT its 3rd

Nope everyone should be logging a full 3rd stop and then a full 4th gear to really see more.

After I do this I then test my 100-200 (EU) or 62-124mph times with Dragy to see the improvement etc