394 HP & 606 Nm Torque

[M3Power79]

Went to the shop today :
Full Milltek exhaust ( primary catback ) + software adjustment
3 measurements :

1. full stock : 340 hp & 534 Nm

2. Milltek with secondary catdelete + airscoops : 347 hp & 492 Nm

3. + software : 394 hp & 606 Nm

Interesting facts : 1.700 rpm - 4.000 rpm : 600 Nm
Gain at 6.500 rpm : 70 hp
Gain at 6.750 rmp : 90 hp

Conclusion : BOM

[E30 Racer]

So you lost 42 Nm of torque before supplementing the mods with software?

[1SerieStud]

Originally Posted by E30 Racer

So you lost 42 Nm of torque before supplementing the mods with software?

+1 ... It appears so...this is rather strange on a turbocharged application.

[M3Power79]

Originally Posted by 1SerieStud

+1 ... It appears so...this is rather strange on a turbocharged application.

Apparently yes. i'm not a technician but ik presume smth with backpressure?

[clived]

Nice looking dyno cell

[M3Power79]

Originally Posted by clived

Nice looking dyno cell

good isolation

[BimmerMat135]

I guess those figures are RWHP and RWTQ? What are the gain with the software only?

[borabora]

[QUOTE=M3Power79;11782447]Went to the shop today :


1. full stock : 340 hp & 534 Nm

i thought stock torque was 450 Nm - 500 Nm overboost ?

[bdaddylo]

Originally Posted by M3Power79

Apparently yes. i'm not a technician but ik presume smth with backpressure?

reduced backpressure is good for turbo cars. Did you do more than one pull for each mod and just post the best results? Multiple pulls are required because there are numerous factors that could affect the results.

[LuuZ]

It seems that, after some different dyno measurements, stock torque is +-530Nm.
So it seems that we have an over-overboost, isn't that great !!??!!
Great result btw

[1SerieStud]

Originally Posted by bdaddylo

reduced backpressure is good for turbo cars. Did you do more than one pull for each mod and just post the best results? Multiple pulls are required because there are numerous factors that could affect the results.

+1 ... exactly my thoughts ... otherwise something may be wrong. Lower back pressure = more free flow for turbos = more power (both hp and tq).

[M///1rider]

Great dynos!!! Especially if that is wheel but i dont believe so

[ozinaldo]

Could the OP give some more info. about the conditions of this dyno run? First, if the numbers are at the wheels or not, since a stock 1M doing "just"340 hp like the factory statement, is something I am seeing first time, most dynos were around 360 to 370 hp and torque was usually around 550 nm. Plus how many runs were made, M mode was on etc.

Thanks.

[M3Power79]

Originally Posted by ozinaldo

Could the OP give some more info. about the conditions of this dyno run? First, if the numbers are at the wheels or not, since a stock 1M doing "just"340 hp like the factory statement, is something I am seeing first time, most dynos were around 360 to 370 hp and torque was usually around 550 nm. Plus how many runs were made, M mode was on etc.

Thanks.

Power is at the crank and all runs with M mode. Their was only one run with the 492 Nm, maybe they didn't push the throttle enough so overboost didn't come up. I don't know. I don't care also

[Superfly]

Originally Posted by ozinaldo

Could the OP give some more info. about the conditions of this dyno run? First, if the numbers are at the wheels or not, since a stock 1M doing "just"340 hp like the factory statement, is something I am seeing first time, most dynos were around 360 to 370 hp and torque was usually around 550 nm. Plus how many runs were made, M mode was on etc.

Thanks.

All the 1M dynoed at BR Performance are closed to the factory statement and sometimes a little bit under

[ChrisBuer]

I made 401.4bhp and 656nm from my remap so I know how you feel

Torque is fun isn't it

[M3Power79]

Originally Posted by ChrisBuer

I made 401.4bhp and 656nm from my remap so I know how you feel

Torque is fun isn't it

Wow that's even more impressive! Or the dyno is very optimistic

[Dackelone]

What worries me is... is that BMW says the stock 1M gear box is only good for 430(ish I can't remember the exact number, but it is lower than what the 1M makes stock!)Nm, yet the car makes 500Nm! (with overboost) I wonder IF we will start to see some gear box failures with all this power. Btw... the 1M uses the same gear box as the N55's use. N54 use a different gearbox.

[ChrisBuer]

Originally Posted by M3Power79

Wow that's even more impressive! Or the dyno is very optimistic

I've had this verified on two completely separate dynos

Originally Posted by Dackelone

What worries me is... is that BMW says the stock 1M gear box is only good for 430(ish I can't remember the exact number, but it is lower than what the 1M makes stock!)Nm, yet the car makes 500Nm! (with overboost) I wonder IF we will start to see some gear box failures with all this power. Btw... the 1M uses the same gear box as the N55's use. N54 use a different gearbox.

I've heard this as well, but even un-tuned, I cannot see why BMW would put a gearbox in a car that wasn't good enough to handle the stock torque (with overboost) that the car produces.

[Aussie_in_London]

Originally Posted by Dackelone

What worries me is... is that BMW says the stock 1M gear box is only good for 430(ish I can't remember the exact number, but it is lower than what the 1M makes stock!)Nm, yet the car makes 500Nm! (with overboost) I wonder IF we will start to see some gear box failures with all this power. Btw... the 1M uses the same gear box as the N55's use. N54 use a different gearbox.

That rating is continuous load over a number of hours (extreme) during bench testing, it is not rated at short bursts as per 'normal' driving.

[Artemis]

Impressive figures squeezed out of that pocket rocket.

Originally Posted by Dackelone

What worries me... is that BMW says the stock 1M gear box is only good for 430(ish I can't remember the exact number, but it is lower than what the 1M makes stock!)Nm, yet the car makes 500Nm! (with overboost) I wonder IF we will start to see some gear box failures with all this power. Btw... the 1M uses the same gear box as the N55's use. N54 use a different gearbox.

As always, mechanical parts have unexploited safety margins, but there's a limit. If it cannot take the strain of repeated high power exposure, it will break down, inevitably. Trading extra fun for longevity: to each his own.

[M3Power79]

Originally Posted by Dackelone

What worries me is... is that BMW says the stock 1M gear box is only good for 430(ish I can't remember the exact number, but it is lower than what the 1M makes stock!)Nm, yet the car makes 500Nm! (with overboost) I wonder IF we will start to see some gear box failures with all this power. Btw... the 1M uses the same gear box as the N55's use. N54 use a different gearbox.

I already feel the clutch wont last long. A stronger one from Sachs will do fine