[M3 Adjuster]

Originally Posted by mxa121

For comparison on their dyno.

Hellcat: 551hp (707, 22% loss)
M2: 287 hp (365, 21% loss)

Going further, I am finding Hellcat dynojets showing 620hp (707, 12% loss).
So, if the M2 has 12% loss on that same dynojet, it would make about 320hp.

As others have mentioned, comparing Dyno figures is best when there is other data from that same Dyno.o

[AWF87M2]

Originally Posted by OrangeCrush

They use a dynocom dyno. Anyone heard of that kind of dyno and how does it compare to others?

You mean the black m2 was tested on dynocom? Never heard of it but I wouldn't be surprised that it reads lower then a traditional dynojet.

[z335is]

Originally Posted by OrangeCrush

Haven't they already gotten a 114 with the manual?

No, highest I've seen is 113 with the DCT. So prob in the 110-114 range once all is said and done, which is perfectly fine given its specs.

[OrangeCrush]

Originally Posted by M3///TW

You mean the black m2 was tested on dynocom? Never heard of it but I wouldn't be surprised that it reads lower then a traditional dynojet.

Yes, I went to the company's website to figure out what dyno they used because someone on Facebook asked how that converted to a dynojet.

[zayzay]

Originally Posted by OrangeCrush

They use a dynocom dyno. Anyone heard of that kind of dyno and how does it compare to others?

Dynocom dyno is the highest reading dyno, my 1m has been dyno on mustang, dynojet and dyncom and the dynocom numbers are way higher compared to the dynojet and mustang, my preference is the dynojet which is not to low or to high, just right

[SflBimmer8484]

I could care less what it makes stock. What can this turbo handle with increased boost?

[3tekcorps]

Originally Posted by OrangeCrush

There was only one dyno that showed the 1M at close to 330whp. It was the Edmonds review. I thought the majority was right around 300. It also shows in the track times. The M2 is heavier and still destroying the times put down by the 1M.

Something was wrong in that video. The power curve just went flat after about 4500 rpms. That's not right. I wonder why they didn't do this the right way?

I put that video on par with crap on the front of the National Enquirer. It's just click bait.

Anyway, we all knew it wasn't a dyno queen. If you wanted big HP numbers there's better options. The only thing this clip proves is that the car is making amazing low RPM torque, which is what you'll appreciate when you put your foot down. Not 500 HP at 8500 RPM.

Show me an M235i on the same machine running the same fuel making better numbers and then I'll give a shit about the results. That would be click worthy.

[zenmaster]

Remember a bigger turbo also flows more air at same pressure as a smaller one.
I don't see why BMW wouldn't have simply increased flow in direct proportion to target rating. The new turbo's efficiency range should allow a corresponding percentage increase in max power. The practical max HP on 93oct is going to be a little less than halfway between the max for the 335i turbo and max for the M4/M3 turbo. I figure 400-420 max.
335i 280whp stock, 360whp max 93 oct
M2 330-340whp stock, 410whp max 93 oct.
M4 430whp stock, 480whp max 93 oct avg jb4 map1&2 beta

[Eddien123]

I'm glad the owner did this but does it matter? Who isn't going to tune this thing?

[M3 Adjuster]

Originally Posted by zenmaster

Remember a bigger turbo also flows more air at same pressure as a smaller one.
I don't see why BMW wouldn't have simply increased flow in direct proportion to target rating. The new turbo's efficiency range should allow a corresponding percentage increase in max power. The practical max HP on 93oct is going to be a little less than halfway between the max for the 335i turbo and max for the M4/M3 turbo. I figure 400-420 max.
335i 280whp stock, 360whp max 93 oct
M2 330-340whp stock, 410whp max 93 oct.
M4 430whp stock, 480whp max 93 oct avg jb4 map1&2 beta

Great theory.

But designing a motor isn't a math equation.

A bigger turbo has to have some drawbacks right ? there still are differences between the n55 and s55 in terms of strength and stress I am sure.

[PrematureApex]

Originally Posted by ASAP

I am going to ask a dumb or perhaps what should be an obvious questions here...

when has an N55 ever dyno'd its crank hp numbers? Or better yet, when has an N55 ever impressed at the dyno?

Low and behold, i think people are still forgetting that while this is an M car, it still has an N55.

What does this even mean?

It's a new engine. Different block, pistons, etc. The "N55" designation is just a name, nothing more.

We were half expecting higher power numbers because we thought this car would get a larger turbo vs. the standard N55. Maybe it did, but these numbers look like perhaps it didn't. But given that the main components of the engine are all new, and not standard "N55", it wasn't odd to think the turbo might be upsized too. No one is forgetting anything.

The B58, S55, etc. all put about their crank ratings down at the wheels, very underrated. At least initially, this motor doesn't appear to follow that trend.

No worries, a Pure upgrade will bolt right in I'm sure.

[PrematureApex]

Originally Posted by M3 Adjuster

Great theory.

But designing a motor isn't a math equation.

.

It is, actually. Well, many equations. But it's just an air pump, governed by the laws of physics.

Originally Posted by M3 Adjuster

G

A bigger turbo has to have some drawbacks right ? there still are differences between the n55 and s55 in terms of strength and stress I am sure.

I wouldn't think BMW wasted money designing yet another closed-deck N55 based block.

I think, in time, we'll learn that the blocks are essentially the same. And we know it's using S55 pistons...

I bet they are similarly strong.

But sure, going with a larger turbo obviously is going to hurt low end response.

[M3 Adjuster]

Originally Posted by PrematureApex

It is, actually. Well, many equations. But it's just an air pump, governed by the laws of physics.

I wouldn't think BMW wasted money designing yet another closed-deck N55 based block.

I think, in time, we'll learn that the blocks are essentially the same. And we know it's using S55 pistons...

I bet they are similarly strong.

But sure, going with a larger turbo obviously is going to hurt low end response.

Then it sounds like one of the characteristics of the n55BTo30 are that its Smaller turbo is giving it much better low end response.... Making it more playful... am I wrong here ?

[dammitcubs]

I really don't care if the DYNO reads 1HP..

Track numbers say all that I need to know.....BEAST!!!

[ASAP]

Originally Posted by PrematureApex

What does this even mean?

It's a new engine. Different block, pistons, etc. The "N55" designation is just a name, nothing more.

We were half expecting higher power numbers because we thought this car would get a larger turbo vs. the standard N55. Maybe it did, but these numbers look like perhaps it didn't. But given that the main components of the engine are all new, and not standard "N55", it wasn't odd to think the turbo might be upsized too. No one is forgetting anything.

The B58, S55, etc. all put about their crank ratings down at the wheels, very underrated. At least initially, this motor doesn't appear to follow that trend.

No worries, a Pure upgrade will bolt right in I'm sure.

Your expectactation of a different turbo was completely baseless... same as the 1M which has the exact same thing as a standard N54.

Nothing in the motor changed that would indicate different power numbers...

compression nope
red line nope
turbo nope

everything else was strengthened to make u feel better that ur getting stronger components from a better M motor... direct swap is all... probably required 0 r&d on their end

[MTHRAR]

Originally Posted by dammitcubs

I really don't care if the DYNO reads 1HP..

Track numbers say all that I need to know.....BEAST!!!

I agree! I don't really care if this car doesn't trap 120mph or whatever is "fast". Hell, cars are getting to the point where a driver's skill can't match how good the car is. I was fine with an E46 M3 power. This car will be beyond that by a decent margin, so I'm not complaining in the least. Some M3/M4 driver's can't handle all of the torque/hp that it has. I've seen numerous posts of people saying it can get out of control quick (Nannies off).

[rr006rbc]

Well. That's one way to break in the motor. Or break it. Good job owners.

[zenmaster]

Originally Posted by M3 Adjuster

Great theory.

Ah but it is very much about math equations. The added engine stresses were addressed where necessary of course. The drawbacks to larger turbo include longer spool time (aka "lag") due to more inertia. Also more intake flow requires more fueling, so worse mileage. These "drawbacks" are acceptable for a performance car.

[FSociety]

Originally Posted by cntzl

M4 has 425hp on paper and has 425whp on dyno. I don't understand why people are expecting around 300whp for M2. Obviously, no one is buying these cars for their dyno results but I still think M2 should have received the same treatment from BMW as for other M and Non-M models. 340i has 320 claimed hp and it does put down 320hp on dyno as well. 287 vs 370 is a huge difference. It actually means that M2 is underpowered compared to M235i. I know they used 91 octane etc but still I cannot justify the difference.

Yep let's wait till Terry from BurgerTuning gets their M2 & Dyno it or someone dyno at that same place

[Powaup]

Dynos are pretty useless without comparables getting dynoed within the same timeframe. Eas dyno days are the best for this

[Powaup]

Originally Posted by zenmaster

Utterly meaningless w/out other car's results on that same dyno with same conditions.

This^^^

The sky is not falling

[tibookM3]

Originally Posted by rr006rbc

Well. That's one way to break in the motor. Or break it. Good job owners.

It'll be fine.

I'm surprised at how bothered some people are by the results. I get the feeling with all the fluffing this car has gotten people were expecting 370whp or something.

It's not the second coming of Jesus Christ, it's an M2. Lol.

Just drive it and enjoy it.