Petrol/Gas BMW B58TU2 petrol engine revision for 2022 will we get this version?

[Krabby]

Cough, cough, JLR 4.6 that was 3.5 to start with, cough, cough.

 

[DaveB]

In my study of cars over the past 50 years, the more they squeeze the original block/head, the more problems arise.

 

[Tazzieman]

Cough, cough, JLR 4.6 that was 3.5 to start with, cough, cough.

Yes I'm glad I only have the 3.9!
And the 5.0 928 , not the 5.4...etc

 

[klarie]

More power - completely new certifying.

I don't think so.

Maybe.. but did just a sneak into KBA type rating list.. still the old one from Sep 2022 no updates yet and hence no Grenadier listed.
What will be finally under the bonnet is still uncertain.

 

[AZGrenadier]

I don't know about which engine we will get but here are a couple of screen shots from a BMW drag race

 

[AZGrenadier]

 

[AZGrenadier]

And then he jumps into an electric car

 

[Tazzieman]

All this tuning torque/talk
Do they want power or torque?
They aren't the same and you can't maximally optimise both.

 

[stickshifter]

All this tuning torque/talk
Do they want power or torque?
They aren't the same and you can't maximally optimise both.

Don't say that around the 6.4 liter (392 cubic inches) Hemi V8 found in the Jeep Wrangler: 475 horsepower and 475 lb. ft. of torque.

 

[Tazzieman]

Don't say that around the 6.4 liter (392 cubic inches) Hemi V8 found in the Jeep Wrangler: 475 horsepower and 475 lb. ft. of torque.

View attachment 7802170

I'm not saying you can't improve both torque and hp , but you can't improve them both optimally each. If that makes sense!
If you want rear wheel torque, maybe gearing is what works best whilst optimising longevity.
If you want to tow a petrol station and impress everyone , buy a Lamborghini LM002!

 

[Boston Boy]

Torque? I want MORE torque and MORE TORQUE!

 

[Disco Dave]

All this tuning torque/talk
Do they want power or torque?
They aren't the same and you can't maximally optimise both.

A high torque engine just produces its power at a lower rpm. It is all about power in the end. The IG petrol engine requires about 20% more rpm than the diesel, to produce the same power. Behind an auto transmission (this is important), the torque to the wheels becomes the same. So the argument of power and torque become mute. The amount of torque you can provide to your wheels is directly proportional to the engine power, not the engine torque.

Now the rpm of the B58 in the IG, has had the max rpm reduced. We are told this is in the interest of longevity. Also, generally a Diesel engine of the same capacity as a petrol needs more turbo boost to gain the same power. So probably the diesel will have more turbo lag than the petrol. Turbo lag can be a real pain on rough tracks.

 

[bemax]

A high torque engine just produces its power at a lower rpm. It is all about power in the end. The IG petrol engine requires about 20% more rpm than the diesel, to produce the same power. Behind an auto transmission (this is important), the torque to the wheels becomes the same. So the argument of power and torque become mute. The amount of torque you can provide to your wheels is directly proportional to the engine power, not the engine torque.

Now the rpm of the B58 in the IG, has had the max rpm reduced. We are told this is in the interest of longevity. Also, generally a Diesel engine of the same capacity as a petrol needs more turbo boost to gain the same power. So probably the diesel will have more turbo lag than the petrol. Turbo lag can be a real pain on rough tracks.

The diesel has got two turbos to compensate the turbo lag.

 

[Max]

There is something about petrol and diesel owners, they will always beg to differ...but it looks like diesel is the clear choice here in Australia by 80% to 20% why? it just could be all torque

Yes, I am in the 80% but not just torque wise but we have spoken about the factors here before and they are all real and the reasons I have not driven a petrol 4WD for now 45 years. It is not an explosion in your engine but a burn that powers your pistons...happy motoring

 

[DaveB]

A high torque engine just produces its power at a lower rpm. It is all about power in the end. The IG petrol engine requires about 20% more rpm than the diesel, to produce the same power. Behind an auto transmission (this is important), the torque to the wheels becomes the same. So the argument of power and torque become mute. The amount of torque you can provide to your wheels is directly proportional to the engine power, not the engine torque.

Now the rpm of the B58 in the IG, has had the max rpm reduced. We are told this is in the interest of longevity. Also, generally a Diesel engine of the same capacity as a petrol needs more turbo boost to gain the same power. So probably the diesel will have more turbo lag than the petrol. Turbo lag can be a real pain on rough tracks.

The diesel is a twin sequential compound diesel with low pressure and high pressure turbos

The Tech Behind the Garrett Turbochargers That Keep BMW B57 Diesel Engines Alive

Let's explore the innovative technologies behind Garett's two-stage VNT turbos used to improve efficiency and reduce emissions on BMW's B57 diesel engines

www.autoevolution.com

 

[Steveo]

The diesel is a twin sequential compound diesel with low pressure and high pressure turbos

The Tech Behind the Garrett Turbochargers That Keep BMW B57 Diesel Engines Alive

Let's explore the innovative technologies behind Garett's two-stage VNT turbos used to improve efficiency and reduce emissions on BMW's B57 diesel engines

www.autoevolution.com

View attachment 7803228

Nice

 

[DaveB]

Nice

I have the same setup in my Mercedes.
Goes like stink with hardly any turbo lag.
It is only a 2.1 L 4 cylinder with 204 HP and 500NM

 

[CountyV8]

Please don't forget the torque multiplication of the converter another reason not to have a manual gear box.

 

[Disco Dave]

There is something about petrol and diesel owners, they will always beg to differ...but it looks like diesel is the clear choice here in Australia by 80% to 20% why? it just could be all torque

Yes, I am in the 80% but not just torque wise but we have spoken about the factors here before and they are all real and the reasons I have not driven a petrol 4WD for now 45 years. It is not an explosion in your engine but a burn that powers your pistons...happy motoring

My intention was not to compare diesel and petrol, but rather torque v power. Engine torque is great for a manual, but makes no difference in an auto. An auto trans produces your wheel torque from power alone. That power is produced by a proportional combination of torque and rpm. Power is what accelerates your vehicle, whether it be towing, hill climbing or even towing. A more powerful engine will do it quicker.

 

[Davman]

Horsepower sells cars, torque wins races. .

Carroll Shelby