Thread: So what's the difference SDV6 & TDV6

Originally Posted by Thehappyidiot

I was advised to avoid the SDV6 3.0 and go with a TDV6 3.0 because the higher output was causing crankshaft issues.

A search does not reveal this ? Where did you hear that ?

The SDV6 I thought is virtually unchanged since 2010 when it came in, but now with the tiniest bit of extra horsepower....but same torque.

Curious.

Brett....

Smacks of someone trying to sell their LP 3.0 by denegrating the HP 3.0.

The main issue with the 3.0l were the turbos,a few threads on here about them.Body off job

Crank and bearing issue was the 2.7,D3.
The D4 2.7 has a different crank.

Most of the early 3.0 turbo problems were due to LR not discontinuing the use of the scavenger pump for the secondary's drain soon enough when Jaguar had dispensed with it before LR started using the 3.0. Mine unnecessarily had the body off to have a turbo replaced and was lining up for another prior to me fitting the Jaguar drain pipe.

Towing a 2.4 tonne caravan, I got 11.9 litres per 100km. At about 94KMH. At 104, I got 13. At a mix of 110 and less, I got 13.7.

With the 8 speed SD motor.

With 10K on it. It might get even better I'm told. Amazing motor.

I've been told to map it - not sure I need the extra go, any advise?

I'd say if you are happy with the current power.... why fiddle with it?

I know I won't bother with mine...

Thanks for the thread have enjoyed the comments.
I now know a little more about my Disco 4.SDV6 HSE. then I did before
it has enough power for me to handle at my age


Thanks Kev

I know someone though with an SD who had his ECU optimised; I think Ritter have the same optimisation available. Its from a NSW LR tuner ... he was wrapped in the improvements in his vehicle.

I also know an ex GMH auto engineer, who bought a new VX 200 series Toyota, and one of the immediate changes he did was to chip his motor. I asked why he did and he said: Because I am an automotive engineer!

Evidently there can be power and fuel saving available, but I've only met one person whose actually done it. And he was very enthusiastic about it.

On the other hand, the tune of my 8 speed is quite clever I think. I've read that the turbo has some lag - but in fact I think the ECU restricts performance when starting from stationary. I think this is perhaps done to save on differential and other driveline stress ... if LR allowed its torque to be there from stationary, IMO there would be a lot of stress on the drivetrain.