Remap Diesel tuning - economy not performance???

Unknownsoldier · 6th March 2008, 16:41

Hi Guys,

Is it possible with superchips or someone else to tune a diesel car to be more economic, like reducing top speed and acceleration for more MPG???? Just asking as my neighbour wants to do it to her 1.9cdti Vectra.

ATB,
Tom

FWH · 6th March 2008, 19:25

Never thought about ways of making a Vectra slower...

DeanFYoung · 6th March 2008, 19:45

She could buy a VW Golf SDI - they are slow you just give up trying to get anywhere - get loads of mpg that way!

civicfan · 6th March 2008, 20:00

Oh that's no problem, and how cheap

FWH · 6th March 2008, 20:03

Seriously though, I think I have seen some diesel tuning chips that claim to improve mpg..not sure where though..or if it works....

Pottsy · 6th March 2008, 20:27

The easiest way would be to put a wooden block under the accelerator pedal.

TTDegs · 7th March 2008, 00:14

Also seriously, yes, most tuning cos do claim that mpg gets better - and some actually do seem to be telling the truth

I would have thought it would be VERY possible to tune for less power, but
a) I'm not sure that it would then automatically give better mpg?; and
b) it would have to be a custom map, as I can't imagine anyone developing an off the shelf solution with the strapline "double your 0-60 and half your top speed!"

but hey - with the way fuel prices are going, she may start a trend...

cb550 · 7th March 2008, 08:19

Quote:

Originally Posted by TTDegs

Also seriously, yes, most tuning cos do claim that mpg gets better - and some actually do seem to be telling the truth

I would have thought it would be VERY possible to tune for less power, but
a) I'm not sure that it would then automatically give better mpg?; and
b) it would have to be a custom map, as I can't imagine anyone developing an off the shelf solution with the strapline "double your 0-60 and half your top speed!"

but hey - with the way fuel prices are going, she may start a trend...

The psi powerbox I bought for my Alfa 147 mjet definitely gave another 2-3mpg driven normally.Unfortunately,when making use of all the additional torque,it rapidly finished off the clutch

alanwalne · 7th March 2008, 09:45

Quote:

Originally Posted by cb550

The psi powerbox I bought for my Alfa 147 mjet definitely gave another 2-3mpg driven normally.Unfortunately,when making use of all the additional torque,it rapidly finished off the clutch

I think that is a shared engine with the Vectra as well

Unknownsoldier · 7th March 2008, 10:53

It's just, she does 400miles plus a week and wants to try to get 2 weeks from one tank of diesel, I would have thought you could reduce the turbo, or limit it to higher revs, like the Vtec, but as you say not many would use it, except perhaps company cars??

Tom

smeg9 · 7th March 2008, 11:29

There was a stand at the Caravan, Boat and outdoor show which was on at the NEC the other week advertising just that, Diesel power tuning I think it was (National Boat Caravan and Outdoor Show)
Take a look at the exhibitors list..

6th March 2008, 16:41	#1 (permalink)
Unknownsoldier Esox Lucius Rules!!!!!!!! Civinfo guru Join Date: 22nd September 2007 Location: Kent, UK Posts: 2,818 Thanks: 81 Thanked 32 Times in 30 Posts iTrader: (0)	Diesel tuning - economy not performance??? Hi Guys, Is it possible with superchips or someone else to tune a diesel car to be more economic, like reducing top speed and acceleration for more MPG???? Just asking as my neighbour wants to do it to her 1.9cdti Vectra. ATB, Tom

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This thread is about: Diesel tuning - economy not performance???, it's in Engines and Transmission at the Honda Civic forum Civinfo; Hi Guys, Is it possible with superchips or someone else to tune a diesel car to be more economic, like reducing top speed and acceleration ...

6th March 2008, 19:25	#2 (permalink)
FWH Super Moderator Civinfo master Join Date: 3rd June 2007 Location: Sweden Posts: 6,469 Thanks: 20 Thanked 84 Times in 77 Posts iTrader: (0)	Never thought about ways of making a Vectra slower...

6th March 2008, 19:45	#3 (permalink)
DeanFYoung Supporter Magic Rear Seat Join Date: 19th June 2007 Location: Southampton Posts: 713 Thanks: 12 Thanked 7 Times in 7 Posts iTrader: (0)	She could buy a VW Golf SDI - they are slow you just give up trying to get anywhere - get loads of mpg that way!

6th March 2008, 20:00	#4 (permalink)
civicfan Supporter Magic Rear Seat Join Date: 13th September 2007 Posts: 803 Thanks: 10 Thanked 2 Times in 2 Posts iTrader: (0)	Oh that's no problem, and how cheap

6th March 2008, 20:03	#5 (permalink)
FWH Super Moderator Civinfo master Join Date: 3rd June 2007 Location: Sweden Posts: 6,469 Thanks: 20 Thanked 84 Times in 77 Posts iTrader: (0)	Seriously though, I think I have seen some diesel tuning chips that claim to improve mpg..not sure where though..or if it works....

6th March 2008, 20:27	#6 (permalink)
Pottsy Administrator Civinfo master Join Date: 10th April 2006 Location: Leics Posts: 5,899 Thanks: 26 Thanked 233 Times in 126 Posts iTrader: (0)	The easiest way would be to put a wooden block under the accelerator pedal.

7th March 2008, 00:14	#7 (permalink)
TTDegs Super Moderator Civinfo master Join Date: 4th August 2006 Location: Cardiff Posts: 5,634 Thanks: 0 Thanked 1 Time in 1 Post iTrader: (0)	Also seriously, yes, most tuning cos do claim that mpg gets better - and some actually do seem to be telling the truth I would have thought it would be VERY possible to tune for less power, but a) I'm not sure that it would then automatically give better mpg?; and b) it would have to be a custom map, as I can't imagine anyone developing an off the shelf solution with the strapline "double your 0-60 and half your top speed!" but hey - with the way fuel prices are going, she may start a trend...

7th March 2008, 10:53	#10 (permalink)
Unknownsoldier Esox Lucius Rules!!!!!!!! Civinfo guru Join Date: 22nd September 2007 Location: Kent, UK Posts: 2,818 Thanks: 81 Thanked 32 Times in 30 Posts iTrader: (0)	It's just, she does 400miles plus a week and wants to try to get 2 weeks from one tank of diesel, I would have thought you could reduce the turbo, or limit it to higher revs, like the Vtec, but as you say not many would use it, except perhaps company cars?? Tom

7th March 2008, 11:29	#11 (permalink)
smeg9 Wheelnut Join Date: 29th July 2007 Posts: 64 Thanks: 0 Thanked 0 Times in 0 Posts iTrader: (0)	There was a stand at the Caravan, Boat and outdoor show which was on at the NEC the other week advertising just that, Diesel power tuning I think it was (National Boat Caravan and Outdoor Show) Take a look at the exhibitors list..