BMW guys getting involved

[Air’d outSRT]

I don't know about that. My robot friends over at AI headquarters beg to differ :

1. Identical Internal Bore and StrokeBoth engines utilize the exact same undersquare internal geometry. They feature an identical 84.0 mm cylinder bore and a 90.0 mm piston stroke.

2. Exact Shared DisplacementDue to having identical bore and stroke measurements, both engines displace exactly 2,993 cc. This rounds out to the 3.0-liter designation used by both manufacturers.

3. Inline-Six ConfigurationEach engine opts for the inherently balanced, smooth firing order of a straight-six layout. This eliminates the need for heavy, power-robbing internal balance shafts.

4. True Twin-TurbochargingNeither engine utilizes a single turbo or a twin-scroll setup. Instead, both employ two low-inertia turbochargers where each turbocharger independently handles exhaust gases from exactly three cylinders.

5. Identical 350-Bar Injection PressureBoth fuel systems feature high-pressure direct injection that tops out at a massive 350 bar (5,075 psi). This design maximizes fuel atomization for cleaner and faster combustion cycles.

6. Heavy-Duty Forged Steel CrankshaftsTo withstand high torque stresses, both engines discard cast parts for a rigid, ultra-strong forged steel crankshaft.

7. Forged Connecting RodsThe high-output variants of both the S58 and the Hurricane HO swap out standard powder-metal components for forged steel connecting rods. This allows them to safely handle heavy boost from the factory.

8. Linerless, Spray-Coated Cylinder BoresNeither engine uses heavy, traditional iron cylinder liners. Instead, they apply a micro-thin, low-friction wear layer directly to the aluminum blocks via thermal arc spraying—known as PTWA on the Stellantis Hurricane and LDS on the BMW.

9. DOHC 24-Valve ValvetrainBoth platforms use dual overhead camshafts acting on 4 valves per cylinder. They also pair this with fully independent variable valve timing to optimize the power band.

10. Flagship Horsepower ThresholdsBoth engines are tuned from the factory to output between 500 and 550 horsepower in their high-tier configurations. This targets premium performance vehicles like the BMW M4 Competition and the Dodge Charger Sixpack Scat Pack.

Well with all that nonsense does that mean I can use a tazer on my G80?!?

 

[D&Sadventure]

I own a modded stage 2 s58 g80 m3, its not even close to a hurricane. Only thing similar is the cylinders.

You don’t think the s58 is even close to as good as the Hurricane?

 

[RamFan]

I own a modded stage 2 s58 g80 m3, its not even close to a hurricane. Only thing similar is the cylinders.

What does a stage 2 even mean? It’s like saying I have a 3/4 race cam in my car. Stage “kits” are whatever someone wants them to be. What are the specifics?

Chris

 

[gram10]

What does a stage 2 even mean? It’s like saying I have a 3/4 race cam in my car. Stage “kits” are whatever someone wants them to be. What are the specifics?

Chris

Im the b58 world, thats downpipe, fuel pump and tune, s58 is a little different, I imagine tune and downpipes

 

[RamFan]

Im the b58 world, thats downpipe, fuel pump and tune, s58 is a little different, I imagine tune and downpipes

Ok, so nothing more than some of us do with our plebeian Hurricanes. Yawn.

Chris

 

[gram10]

Ok, so nothing more than some of us do with our plebeian Hurricanes. Yawn.

Chris

Haha yes, but since the ecu is cracked the tuning aspect is a whole different world. As the giy in the first post from kies talks about, at the beginning of the b/s58 days torque limiters from the transmission controller really limited what could be done. Those aren't an issue now and there is barely anything in the engine that cant be tuned. Just afr tuning a lone would get us some nice gains. If the afr gauge is accurate, we run crazy rich in stock form, not getting the full direct injection benefit, along with valve timing, injector pulse width and timing, cant wait for us to have that ability.

 

[itsmekylep]

I own a modded stage 2 s58 g80 m3, its not even close to a hurricane. Only thing similar is the cylinders.

Same bore and stroke isn’t it? Theres a ton of similarities. Not saying one of better than the other, just saying dodge made a damn near direct copy. Lol

 

[matt35hr]

What does a stage 2 even mean? It’s like saying I have a 3/4 race cam in my car. Stage “kits” are whatever someone wants them to be. What are the specifics?

Chris