Horsepower

[INEOS OG]

View attachment 7923574

I was agreeing with you. The weak point is the gear box.

 

[abbeyroad]

I was agreeing with you. The weak point is the gear box.

You have a weird way of agreeing

 

[INEOS OG]

You have a weird way of agreeing

It's all good, being from Los Angeles is confusing.

 

[abbeyroad]

It's all good, being from Los Angeles is confusing.

Not as confusing as calling yourself an INEOS OG, mr South Central oh the irony lmao

 

[landmannnn]

The B58 (gas engine) has the ZF 8HP51 (3rd Gen). Its a great transmission, but the max torque rating on this version of the ZF 8-speed is 500 nm or 369 lb-ft of torque.

Paired with a 6,000 pound cage means over tuning will kill your ZF box in pretty short order.

We don't know if that is the case or not.
The published torque is indeed 500nm, however IA may or may not have specified that transmission with higher rated clutch packs etc.

 

[INEOS OG]

True, even still at 3 tons the driveshafts and the gearbox are the weakest points of the petrol Grenadier. A driveshaft is a cheap and easy fix, my concern is at higher hp / torque the gearboxes will live just long enough to be out of warranty or be found to have their warranty voided by tuning as they give up. As someone noted earlier, to me it's not worth the squeeze.

 

[Tenac]

The ZF transmission can be upgraded to handle more power: https://www.puredrivetrainsolutions...p/8hp45/50-stage-1-transmission-upgrade-jlkl4
Adding another with more part details: https://spoolperformance.com/produc...t6QjV2BPJtJ5dPUAZ1_UlNO89-uKhDcAi0lF6pGBdiHbK

 

[Tenac]

for what its worth AI found this detail regarding the ZF 8HP50

The ZF 8HP50 is the second generation of the legendary 8HP series, designed to handle up to 500 Nm of torque. It is most commonly found in vehicles with 4-cylinder and 6-cylinder engines, particularly those produced between 2014 and 2022.

While many manufacturers use the 8HP50, some (like Stellantis) produce it under license as the 850RE. Here is the breakdown of vehicles that utilize this specific transmission:

BMW​

BMW is the primary user of this transmission, pairing it almost exclusively with their B38 (3-cyl), B48 (4-cyl), and B58 (6-cyl) engines during the late "F" and early "G" chassis eras.

• 1 Series (F20/F21): 118d, 120d, 120i, 125i, M140i (LCI models)
• 2 Series (F22/F23): 220i, 230i, M240i
• 3 Series (F30/F31/F34): 320i, 330i, 340i, 320d, 330d (LCI models)
• 3 Series (G20): 320i, 330i, M340i (Pre-2019/2020 before the 8HP51 update)
• 4 Series (F32/F33/F36): 420i, 430i, 440i, 420d, 430d
• 5 Series (G30/G31): 520i, 530i, 540i, 520d, 530d
• 7 Series (G11/G12): 730i, 740i, 730d
• X3 (G01) & X4 (G02): 20i, 30i, M40i, 20d, 30d
• X5 (G05): 40i, 30d (Early production models)

Stellantis (Licensed as "850RE")​

In the US, Chrysler/Jeep/Dodge often build their own version of the 8HP50 under license. You will find it in most of their V6-powered vehicles:

• Jeep Wrangler (JL): 2.0T and 3.6L V6 models
• Jeep Gladiator (JT): 3.6L V6 models
• Jeep Grand Cherokee (WK2): 3.6L V6 (Post-2016)
• Dodge Charger/Challenger: 3.6L V6 (Post-2015)
• Chrysler 300: 3.6L V6 (Post-2015)
• Ram 1500 (DT): 3.6L V6 Pentastar models

Alfa Romeo​

Alfa Romeo uses the 8HP50 for their longitudinal-engine RWD and AWD platforms:

• Giulia (952): 2.0T Petrol and 2.2 MultiJet Diesel
• Stelvio (949): 2.0T Petrol and 2.2 MultiJet Diesel

Jaguar & Land Rover​

Used primarily in their 4-cylinder "Ingenium" and early 6-cylinder applications:

• Jaguar XE (X760): 2.0P, 2.0D, 3.0 S
• Jaguar XF (X260): 2.0P, 2.0D, 3.0 SC
• Jaguar F-Pace: 2.0P, 2.0D
• Land Rover Discovery 5: 2.0 SD4
• Range Rover Velar: D180, D240, P250, P300

Other Manufacturers​

• Maserati: Ghibli, Levante, and Quattroporte (specifically for the Diesel and some V6 Petrol variants).
• VinFast: Lux A2.0 and Lux SA2.0.
• Morgan: Plus Four (uses the BMW B48 engine/transmission combo).
• Ineos: Grenadier (uses the BMW B58 engine/transmission combo).

[!TIP]Note on 8HP51: Many newer vehicles (post-2019) like the Toyota Supra (A90) and later BMW M340i models have moved to the 8HP51 (Gen 3), which is essentially an updated 8HP50 with higher efficiency and slightly improved torque handling.