Where our 0-60 timer lacks in accuracy it makes up for it in consistancy, every standard fitted D3 i have done has been around 10s give or take 0.3s.
Also 8.7 is slightly better than average for a tuned D3 on this timer, the difference is what we are looking at mainly too be sure that the tune is working correctly.
I usually explain this if the customer asks what the times were however i forgot too this time, i opologize for any missunderstanding caused.
No worries. Having done another 200 miles since yesterday, I am starting to think that perhaps I was a bit premature with my disappointment. Some of the overtaking manouvres I did around north Derbyshire on my way back this morning would have been a bit optimistic without the remap. With the motorway driving I'd done when I put in that post yesterday, you'd be pretty hard pressed to spot a difference - but that's because it was motorway driving.
11th Aug 2006 3:12 pm
simon
Member Since: 11 Jan 2005
Location: Shropshire
Posts: 18296
lucky D3 having a new brain !
If I had the cash I'd do it myself - just can't stump up the dosh at present
11th Aug 2006 3:36 pm
LRtuning
Member Since: 22 Feb 2005
Location: AUSTRALIA + UK
Posts: 468
PaulB,
Fuel pressure is a big problem if you raise it beyond design limits (usually with the plug in boxes) and a problem for tuners if they rely too heavily on it as it will increase wear on injectors and place a greater demand on the fuel pump to maintain the pressure.
A 'balance' approach to remaps is the best option
Catweasel,
Injector timing can indeed alter the amount of power (and heat) produced by an engine but if alterations are carefully monitored then you can keep the impact on all engine components to a minumum including the turboMoney talks.Sex sells.Mud sticks.Time flys. happens.People talk.Impressions last!
11th Aug 2006 3:48 pm
PaulB
Member Since: 02 May 2006
Location: Coventry
Posts: 40
Chris,
You misunderstood me. I wasn't justifying increasing fuel pressure. On the contrary, I was asking if there was any need, given the already extremely high pressures involved in modern common-rail type engines.
How much of a part does increasing boost pressure have to play ?
Paul
11th Aug 2006 5:33 pm
LRtuning
Member Since: 22 Feb 2005
Location: AUSTRALIA + UK
Posts: 468
Paul.
I'm not usually an advocate of 'winding up' boost pressure as it tends to increase additional heat that could be a problem in certain operating conditions.
A modest increase od 0.2 bar is usually acceptable but I try to reach peak pressure earlier by raising fueling at lower revs.....in effect the turbo operates over a greater rev range, lag reduced and engine response improvedMoney talks.Sex sells.Mud sticks.Time flys. happens.People talk.Impressions last!
11th Aug 2006 8:44 pm
simkna
Member Since: 21 Feb 2006
Location: Leicester
Posts: 806
Can now report MPG following a weekend of driving over 450 miles of Motorway and A roads. Motorways with cruise set at 75mph with odd bursts a little higher. A roads driven relatively gently, and ~30 mins stuck in crawling traffic on A64. Total average mpg - 28.0mpg. Never went above 28.1, and lowest seen was about 26.5 whilst stuck in traffic.
This is on an auto with under 2K on the clock.
It would seem (but is by no means conclusive) that compared to latest LR maps, JE map is worse by an mpg or two.
Will do an actual usage calc. when I fill up tonight to get a truer figure.
Si.Pat's Van
D3 TDV6 S Auto
Rimini Red / Alpacca Leather
14th Aug 2006 9:12 am
simkna
Member Since: 21 Feb 2006
Location: Leicester
Posts: 806
Have now done true usage mpg calculation. (Range clicked over to 0 when I pulled into the petrol station).
470 miles, 81.5l = 26.2 mpg. A bit disappointing considering it was driven pretty gently all weekend. Who else has found their mpg dropped after a remap compared to (recent) LR maps?
Si.Pat's Van
D3 TDV6 S Auto
Rimini Red / Alpacca Leather
16th Aug 2006 10:39 am
10forcash
Member Since: 09 Jun 2005
Location: Ubique
Posts: 16534
Don't forget that any software upgrade to the engine and gearbox ECU will cause it to 'forget' previous adaptive mappings, it will take some time to re-learn the engine performance and your driving habits, this can explain a drop in MPG and different shift points with an auto box
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Some of the overtaking manouvres I did around north Derbyshire on my way back this morning would have been a bit optimistic without the remap. 
With the motorway driving I'd done when I put in that post yesterday, you'd be pretty hard pressed to spot a difference - but that's because it was motorway driving.
happens.People talk.Impressions last! 
