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DFNDER



Member Since: 02 Oct 2023
Location: Perth WA
Posts: 121
Australia 
So is the D250, D300 and D350 the same engine with different tunes? Then why not go from 250 to 350bhp in one tune?
Post #1042566 12th Aug 2024 1:18pm
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Crazymind



Member Since: 11 Jun 2024
Location: Glasgow
Posts: 109
United Kingdom 
After genuine software upgrade to D300 I have a couple of notes.
Immediately you will notice the torque curve is different.
You lose torque between 1200 and 1500rpm compared to the 250 and you get middle punch torque from 2500 to 3500 which is not felt on the 250.
Acceleration from standstill is more consistent and overtaking easier.
Mpg didn’t notice any difference. It’s a thirsty beast.
Post #1042569 12th Aug 2024 1:50pm
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DFNDER



Member Since: 02 Oct 2023
Location: Perth WA
Posts: 121
Australia 
Interesting....bit of a digress but still related, I had my D4 remapped with an aftermarket ecu flash tune, from 188kW to 225kW and 650Nm This was the SDV6SE. Torque curve was so much better, instant response from idle and just linear. great for towing. Noticeable fuel burn reduction too, real world burn was 8.9-9.3 l/100km highway, 10.3-11.0 l/100km towing.

It's only a matter of time before someone builds a decent and reliable tune for those that dont like the LR factory ones. Once out of warranty would be an easy mod.

At the moment I'm pretty happy with the P400 as standard.
Post #1042578 12th Aug 2024 3:24pm
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lightning



Member Since: 23 Apr 2009
Location: High Peak, Derbyshire
Posts: 2670
United Kingdom 
Crazymind wrote:
After genuine software upgrade to D300 I have a couple of notes.
Immediately you will notice the torque curve is different.
You lose torque between 1200 and 1500rpm compared to the 250 and you get middle punch torque from 2500 to 3500 which is not felt on the 250.
Acceleration from standstill is more consistent and overtaking easier.
Mpg didn’t notice any difference. It’s a thirsty beast.


Can l ask
Who did your genuine Software upgrade?
Post #1042592 12th Aug 2024 6:12pm
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Crazymind



Member Since: 11 Jun 2024
Location: Glasgow
Posts: 109
United Kingdom 
TTW in Nottingham.
Post #1042607 12th Aug 2024 8:45pm
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