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Discussion Starter · #1 ·
Pretty impressive numbers for an otherwise stock car (zero mods except ECU tune)

As far as I'm aware this is the first tune which is direct to the ECU and not a piggyback tune using a box that plugs into the MAF and throttle body. Carried out by a French / Belgian tuner called ShiftTech.....

I guess it shows how much potential this 2.0 B48 engine has :)





 

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That's food for thought!


Rix, I understand that the B48 2.0-litre hasn't been used in other BMW models to date except the 2-series active tourer, however I believe that it will be going forwards.


Even if the engine can take it and we make an assumption that the gearbox could, would the car be able to get that torque down? My stock F56 MCS already 'curbs' power in first, second and third gears - with DSC off the wheels spin easily.....


It is exciting though ��
 

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What i understand is that the turbo on de B48 engine is smaller than the N20 engine. That's why most BMW have better performance figures after tuning.

The Shiftech tuning to 292HP is not just with ECU tuning. They have also fitted a complete different exhaust to it. With just ECU tuning it puts out 260HP, which i doubt.... BR-Perfomance states an output of 240HP after ECU tuning and i personally expect that to be an achievable figure.
 

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I also think you have to take those figures with a pinch of salt.


First of, there is apparently lower power loss at higher output?! should be the other way around.


Second is that there is no way you can run a 50% power increase safely on standard parts. Turbo will be maxed out generating loads of extra heat. downpipe and exhaust will generate to much backpreassure for turbo to last. Injectors and fuel system will be bottomed out with high risk of predetonation. Clutch will slip. And then there is offcourse the risk of piston, rod and gearbox -failure.


I agree that 240hp seems to be the reasonable level to run safely without upgrading: intercooler, injectors, clutch and dowpipe.
 

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It doesn't surprise me that the engine could produce those figures, but how reliable the unit would be is another matter.


Turbocharged 2.0-litre engines can reliably produce 350hp in production form, but as others have said all components need to be designed to handle that power. No manufacturer is going to over-engineer and deliberately restrict it.
 

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Discussion Starter · #11 · (Edited)
I must admit, I'd want to ensure my gearbox wasn't a duffer before I even thought about tuning!

There will be some warrantied tuning available soon I reckon from the likes of hartge maybe?
Agreed.

Do both Hartge and AC Schnitzer have BMW backing in terms of warranty?

If so it would be great to see them offer a safe tune to something like 240 hp >:D
 

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Agreed.

Do both Hartge and AC Schnitzer have BMW backing in terms of warranty?

If so it would be great to see them offer a safe tune to something like 240 hp >:D
I can't remember, but have a feeling that ACS promote their warranty along the lines of if bmw won't cover it, they will!
 

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Thats a nice jump, bmw engines tend to take modding very well, for gearbox's its torque that kills them not the power, just have to look at the 335d adn the torque that creates!.

Torque from 206-289lbs is a good jump but well within the engine/gearbox limits me thinks, you dont need a large jump in boost to get these figures, clutch would be my only worry, but I wouldnt be that worried :)
 

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Max power at lower revs after the tune. Providing that the standard car will hit the revlimiter in top gear, V-max will be the same.

Still not a tune I would run on my new car without changing alot of parts.
 

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Dyno runs are not done in 6st gear. ;)

All the equipment and the car suffer a lot more the higher the speed gets on the bench.
Yep not enough airflow on a dyno for high speed runs. Dyno figures shouldnt be taken as gospal for performance, just because you pull good numbers on a dyno doesnt determine how the car feels and drives and might actually feel worse than it actually is. Bottom line, if your happy with how the car performs ignore the numbers they are just bragging rights anyway
 

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BMW has said that this engine will get 300 HP reliably. That probably requires a bigger turbo unit than stock in the F56. I believe BMW also said it would require a bigger inter-cooler, which may be limited by space available in the F56. But that is to meet manufacturer reliability requirements which would err on the side of caution. Not that that's a bad thing.

I've had 260 hp in my brain as a target, after warranty :), which is what I see Shift lists as Stage 1. Very excited to see this, & hear from other companies as my warranty period ticks by.
 
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