Mud-club

Vehicle & Technical => Defender => Topic started by: Mark_Solesbury on December 07, 2009, 12:09:37

Title: 300tdi Performance / MPG
Post by: Mark_Solesbury on December 07, 2009, 12:09:37: Hiya

Ive got a 1996 300tdi 90 with 83000 on the clock. It has got a standard size Allisport intercooler, Straight though exhaust, and an ITG filter.

I did exactly the same 150 mile journey on Sunday with another 1997 defender with standard intercooler, exhaust and filter.

We sat at 65mph pretty much the entire way - I used 3/4 tank of diesel, and the other one used 1/2, but the other one has better performance, quicker and a better top speed. Neither 90's smoke.

Im thinking that mine needs to be tinkered with by someone who actually knows what they are doing - Fuel pump has been tweaked by many previous owners by hte look it, but i can get it flat as anything, or drinking fuel

Do you know of anyone that would be able to undertake such a task?
Title: Re: 300tdi Performance / MPG
Post by: landy_bug on December 08, 2009, 16:27:59: any diesel specialist should do it. or a local performance car tuner/rolling road or try allisport?? or even a local land rover specialist.
there are plenty of places about also if funds will allow get a re-map that should improve performance and fuel consumption
Title: Re: 300tdi Performance / MPG
Post by: Mark_Solesbury on December 08, 2009, 16:29:28: a 1996 300tdi remap means a man with a screwdriver!

Non ECU :)
Title: Re: 300tdi Performance / MPG
Post by: landy_bug on December 08, 2009, 16:40:22: sorry forgot about that as i have no defender yet and never been under bonnet of 300tdi i will remember that tho cheers
Title: Re: 300tdi Performance / MPG
Post by: Mark_Solesbury on December 08, 2009, 17:00:50: Didnt mean to sound rude!

thanks for trying - ill give allisport a call i think.
Title: Re: 300tdi Performance / MPG
Post by: ben-dent on December 08, 2009, 21:52:09: give it to me mark i will swap you my rangie [-o< [-o<

thats got no MPG :evil: :evil:
Title: Re: 300tdi Performance / MPG
Post by: Mutz on December 16, 2009, 18:01:35: Could it be the "97" has a Disco transfer box?
Title: Re: 300tdi Performance / MPG
Post by: tack43 on December 16, 2009, 18:31:19: Definately using too much fuel. I did about 200 or so miles this weekend ( about 150 on motorway/fast A roads and 50 on green lanes/minor roads) on 3/4 tank. I am using 2 stroke in the fuel which does seem to help MPG!

Rich
Title: Re: 300tdi Performance / MPG
Post by: Bob696 on December 17, 2009, 06:40:22: You don't mention Tires. Same tires?
Title: Re: 300tdi Performance / MPG
Post by: bogie on December 17, 2009, 20:43:32: Im getting 44mpg with anacondas and 200! 35 around town.
Title: Re: 300tdi Performance / MPG
Post by: Mark_Solesbury on December 19, 2009, 17:50:42: Quote from: Bob696 on December 17, 2009, 06:40:22
You don't mention Tires. Same tires?

Mine has 285/75/16 special tracks and the other has 35/10.5/16 Simex ET, roughly the same tread / size.
Title: Re: 300tdi Performance / MPG
Post by: bogie on December 19, 2009, 20:01:53: The two things that kill your mpg are cold starting and keep on hitting the turbo!
Title: Re: 300tdi Performance / MPG
Post by: bazza5662 on December 19, 2009, 21:26:53: try this book, i bought one and it realy helped..
http://cgi.ebay.co.uk/LAND-ROVER-TDi-DIESEL-TUNING-MANUAL-TURBO-POWER_W0QQitemZ350289510708QQcmdZViewItemQQptZUK_CarsParts_Vehicles_CarParts_SM?hash=item518ee1c134
Title: Re: 300tdi Performance / MPG
Post by: trecfive on December 23, 2009, 22:25:09: Quote from: tack43 on December 16, 2009, 18:31:19
I am using 2 stroke in the fuel which does seem to help MPG!
Rich

How much do you add and in what sort of ratio, 1/2 ltr of two stroke to 50ltr of diesel?
Title: Re: 300tdi Performance / MPG
Post by: Mark_Solesbury on December 26, 2009, 11:10:22: Just been out this morning and results are not good :'(

Filled it up to one click on the pump, drove 30 miles, filled it up again at same pump.

30miles, 6.88 litres (1.5 gallon) = 20mpg
Title: Re: 300tdi Performance / MPG
Post by: bogie on December 26, 2009, 17:48:36: Can of petrol and match!
Title: Re: 300tdi Performance / MPG
Post by: tack43 on December 27, 2009, 20:21:37: Quote from: trecfive on December 23, 2009, 22:25:09
Quote from: tack43 on December 16, 2009, 18:31:19
I am using 2 stroke in the fuel which does seem to help MPG!
Rich

How much do you add and in what sort of ratio, 1/2 ltr of two stroke to 50ltr of diesel?

1 part 2 stroke to 200 parts diesel (about 1/4 litre per tank). See the post in the alternative fuels section.

Rich
Title: Re: 300tdi Performance / MPG
Post by: Range Rover Blues on December 28, 2009, 13:07:04: Quote from: tack43 on December 27, 2009, 20:21:37

How much do you add and in what sort of ratio, 1/2 ltr of two stroke to 50ltr of diesel?

1 part 2 stroke to 200 parts diesel (about 1/4 litre per tank). See the post in the alternative fuels section.

Rich

Anyone know why this has such an effect?
Title: Re: 300tdi Performance / MPG
Post by: bogie on December 28, 2009, 19:04:29: Litre of petrol does it for me!
Title: Re: 300tdi Performance / MPG
Post by: disco2 td5 on January 01, 2010, 23:13:23: ive heard abit of petrol in works wonders on clean burning and keeping injectors clean but never been brave enough to try it
Title: Re: 300tdi Performance / MPG
Post by: lukeLR90 on January 02, 2010, 11:10:00: to be fair i dont think id try it either i just use diesel conditioner...the forte one although that does remind me i must put some more in :roll: