Can anyone recommend someone who's good with fault finding on tdv8 3.6 in Kent
Intermittent power loss no warning signs or faults logged

Kent's quite a big county and my suggestion is not even for Kent but if you are near the Sussex border, the I'd give Groombridges in Heathfield a ring. Won't be much good to you if you're in Broadstairs however.
Also you could try touching base with Geoff ( I think he's Edenbridge way). If you search for Geoff. (With the full stop) you should find him. Not sure what has capabilities are for your problem however.

Maybe not much help but it's a start... Robin
2008 Range Rover Sport TDV8
Gone:
Jaguar S-Type V8 4.2 Sport
MGZTT 190 2.5

When was the fuel filter last changed ? Might be a good place to start by renewing.. 2008 G4 RRSport TDV8 current
2009 TDCi 90 current
2018 Discovery 5 HSE lux current
1994 Dakar current

Thanks I'm in sheerness Kent, will try and get in touch with Geoff.

Car has just been fully serviced usuing genuine parts

Only thing I can see that's a obv problem is both front and rear anti roll bars are leaking heavily would this cause the car to behave odd under acceleration.

If the suspension was getting involved in your problem I'd expect a suitable error code to be stored.

Is this RRS new to you? 2012 SDV6 - it's missing a couple of cylinders
2008 TDV8 - it was a labour of love and is much missed

Only visual things I can see is the intercooler looks as if it leaking I've replace the top hoses and front a read ace anti roll bars are leaking every so often it leans toward the drivers side like it thinks it going into a bend/corner I've put some pictures of this I've also read somewhere there's a sensor that detects g force on accelerating and cornering that can become faulty ?

Is this a new purchase or have you had it a while?

The anti roll bars leaking won't make the vehicle lean. A dodgy corner valve might do so however.

The vehicle uses several sensors to detect cornering: two accelerometers, a yaw sensor and steering angle sensor. The accelerometers don't come up as an issue on here, neither does the yaw sensor. The steering wheel angle sensor does, occasionally, but it tends to throw up DSC issues.

The yaw sensor is on the floor below the central console. One accelerometer is on the chassis rail near the Dynamic Response valve block. The other is up behind the cabin light by the rear view mirror I think. 2012 SDV6 - it's missing a couple of cylinders
2008 TDV8 - it was a labour of love and is much missed