AM6-2 automatic gearbox - max torque / power ?

[Jay-Bruce]

Morning all, just wondering if anyone knows the limits of the am6 gearbox used in C5's and 407's? Reason I ask is I've been researching the Jaguar variants of the v6hdi, and some of them were 302bhp/516lbft vs our 241bhp/332lbft; so... a certain Scottish eccentric evil engineer is thinking to himself on making his c5 x7 tourer up to 300bhp. Then I thought I wonder if our version of the "Lion v6" was "detuned" to accomidate our gearbox?

I know from experience with first gen TD4 freelanders that the rover version of the BMW m47 engine was detuned to compensate for our vehicles rather puny gearboxes, hence me asking about our version of the v6 diesel and its gearbox's limitations.

[GiveMeABreak]

These are different depending on engine type - the boxes have different part numbers and markings accordingly.

Engine legislative type	XFV	UHZ / X8Z	RHR	4HL
Tyres	215/45 R18 (245/40 R19)	215/45 R18 (245/40 R19)	225/60 R16 (225/55 R17) (245/45 R18) (245/40 R19)	225/50 R17 (245/45 R18)
Speed in kph at 1000 rpm in first gear	7,97	9,72	8,61	9,75
Speeds in km/h at 1000 rpm in 2nd gear	13,94	17,01	15,07	17,07
Speeds in km/h at 1000 rpm in 3rd gear	21,24	25,91	22,96	26,01
Speeds in km/h at 1000 rpm in 4th gear	28,62	34,91	30,93	35,04
Speeds in km/h at 1000 rpm in 5th gear	38,45	46,91	41,56	47,09
Speeds in km/h at 1000 rpm in 6th gear	48,19	58,78	52,08	59,01
Speed in kph at 1000 rpm in reverse gear	9,74	11,88	10,52	11,92
Final drive ratio	15/53	15/53	15/53	15/53
Changing down ratio	49/52	54/47	51/50	54/47
Converter torque	18,4 daNm	23 daNm	15,6 daNm	22,2 daNm

The weights are also different:

Weight of the automatic gearbox for engine:

• ES9A: 93,6 kg (approx.)
• DT17TED4: 96 kg
• DT20C: 96 kg
• DW10BTED4: 93,1 kg
• DW12C: 93,5 kg