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Wildrover66

Member Since: 25 Apr 2018
Location: Kildare
Posts: 52

1997 Defender 110 300 Tdi SW Orkney Grey

300Tdi engine parameters

Hi

I have a project defender new to me. Today whilst driving on the motorway 70mph in 5th reasonably comfortable I was scanning the gauges to try and baseline some values. Unfortunately I have no points of reference.
300Tdi 110 with a snorkel 3 inch exhaust ,standard turbo ,boost pin and Oring upgraded, Discovery intercooler
@70mph
1.25 in boost
475 EGT (is this high)?
4200 RPM this seems out to me through entire range idles at a 1000 RPM
31,5in tyres 285/60/R18
@60MPH
1 in
400 EGT
4000RPM
@50 mph TBH 5th gear is too low so figures are from 4th gear
.8 boost
320 EGT
4000RPM
If anyone knows there readings at this set point then I can start to gauge an average.

Thanks in advance

Last edited by Wildrover66 on 11th Nov 2019 4:31pm. Edited 2 times in total

7th Nov 2019 4:34pm

donmacn

Member Since: 06 Nov 2017
Location: Nth Scotland
Posts: 1853

I wish I could sit at 70mph "reasonably comfortably"!

I don't think I can help too much at this stage as I haven't fitted my EGT yet, and like you I'm suspicious of my rev counter.

On the boost, I think my turbo's pretty tired. It takes a lot of revs to give boost, and it falls off pretty quickly, but I don't think your 1.25 will be too far off.

I will be watching this thread with interest though, to give myself the same comparators when I'm finished. Donald

1994 Defender 300Tdi 110 SW - owned since 2002 - 230k miles and going strong
(The 'rolling restoration' or tinkering thread: http://www.defender2.net/forum/topic58538.html )
2000 Range Rover P38 4.0L V8

in the past..
RR classic - fitted with 200Tdi
1984 RR classic - V8 with ZF auto box
1993 Discovery 300Tdi

not to mention the minis and the Type 2 VW camper...

7th Nov 2019 5:29pm

htb2

Member Since: 02 Nov 2018
Location: Carmarthenshire
Posts: 539

Can you not manage 70 downs berrsidale braes, or is it the stopping at the bottom

7th Nov 2019 5:51pm

Wildrover66

Member Since: 25 Apr 2018
Location: Kildare
Posts: 52

I will add to this tomorrow with figures for 50mph and 60mph

7th Nov 2019 5:55pm

donmacn

Member Since: 06 Nov 2017
Location: Nth Scotland
Posts: 1853

htb2 wrote:
Can you not manage 70 downs berrsidale braes, or is it the stopping at the bottom

Either you're a braver soul then me, or have more faith in your brakes!

Wildrover - this could end up being the definitive 300Tdi engine parameters thread! Donald

1994 Defender 300Tdi 110 SW - owned since 2002 - 230k miles and going strong
(The 'rolling restoration' or tinkering thread: http://www.defender2.net/forum/topic58538.html )
2000 Range Rover P38 4.0L V8

in the past..
RR classic - fitted with 200Tdi
1984 RR classic - V8 with ZF auto box
1993 Discovery 300Tdi

not to mention the minis and the Type 2 VW camper...

7th Nov 2019 5:58pm

htb2

Member Since: 02 Nov 2018
Location: Carmarthenshire
Posts: 539

Been down before with no rear brakes as clamped off with molegrips.

7th Nov 2019 6:03pm

grafty99

Member Since: 15 Aug 2012
Location: North Devon
Posts: 4796

Re: 300Tdi engine parameters

4200 RPM is nearly max governed engine speed

With standard gearing and 31 inch tyres it should be a shade under 3000 rpm at 70 mph

2002 90 Td5 Station Wagon
1990 Vogue SE
Triumph Tiger Explorer 1200
Td5 90 Thread http://www.defender2.net/forum/topic50767.html
Tdi 110 Thread https://www.defender2.net/forum/topic69562.html
RRC Thread http://www.defender2.net/forum/topic54492.html
Instagram http://www.instagram.com/george_grafton

7th Nov 2019 7:53pm

Huttopia

Member Since: 23 Feb 2016
Location: West Midlands
Posts: 1978

Standard transfer box? I’m with grafty, that’s smoking at 4200, I wouldn’t go there.

7th Nov 2019 8:29pm

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