exhaust egt temp

right ive fitted a boost guage it goes to 1.1 bar on my 200 so i think its fine ,the fuelling was messed up by someone not me , and ive been trying to set it so ,a it drives ok not loads of black smoke before turbo comes in and it goes pritty well. i dont want a race truck but when i first put this engine in in 2004 it had a really lovely punch to it , so im nearly there , so on a long big hill it goes ok ish but it is not as powerfull and with foot flat on the floor my egt is 740 and it goes down , im going to fit a twin pass intercooler next week so i can open up the fuelling slightly does anyone have a 200 300 with an egt guage and whats your settings thx allan

Even more reason to fit an accurate coolant gauge.

allan downes said:

right ive fitted a boost guage it goes to 1.1 bar on my 200 so i think its fine ,the fuelling was messed up by someone not me , and ive been trying to set it so ,a it drives ok not loads of black smoke before turbo comes in and it goes pritty well. i dont want a race truck but when i first put this engine in in 2004 it had a really lovely punch to it , so im nearly there , so on a long big hill it goes ok ish but it is not as powerfull and with foot flat on the floor my egt is 740 and it goes down , im going to fit a twin pass intercooler next week so i can open up the fuelling slightly does anyone have a 200 300 with an egt guage and whats your settings thx allan

Click to expand...

I have one on my 200TDI. It’s almost completely standard, no boost gauge so I’m not sure exactly what boost it’s producing.

Mine will top out at 540-550ish on the longest hills in the area. I have turned the boost pin around 45degrees or so, but other than that nothing has been changed/adjusted. I’m waiting for the summer months to be over before I go adjusting mine any further. I have noticed that at -4degrees it was around 30degrees lower EGT, than the same hill, at 8-9degrees. I think that will make a huge difference at 25-30degrees in the height of summer.

I also tow a 1 ton folding camper, so need to check the EGT while towing that too.

allan downes said:

right ive fitted a boost guage it goes to 1.1 bar on my 200 so i think its fine ,the fuelling was messed up by someone not me , and ive been trying to set it so ,a it drives ok not loads of black smoke before turbo comes in and it goes pritty well. i dont want a race truck but when i first put this engine in in 2004 it had a really lovely punch to it , so im nearly there , so on a long big hill it goes ok ish but it is not as powerfull and with foot flat on the floor my egt is 740 and it goes down , im going to fit a twin pass intercooler next week so i can open up the fuelling slightly does anyone have a 200 300 with an egt guage and whats your settings thx allan

Click to expand...

I put a boost gauge on mine and If I thrash the Landy the gauge can get to just under 1 bar. Standard driving it gets to about 3/4 bar. I've not touched the FIP.
I've only read threads about FIP and turbo adjustments, but 740 degrees sounds very high IIRC.

ive read this ??

Oliver Whiting
Status: Offline
Oliver
84 110, 94 NAS90,Bunch of EX-mods
Member

Join Date: Jan 2011
Location: Durango CO USA
Posts: 402

I have a 300tdi and spoke with the tech guys at Garrett about this same issue. I was told that 1330f was max for the turbo by Garrett so just to play it safe I run around 1150f max at my elevation but keep in mind as you climb in elevation the fueling ratio stays the same so they will run hotter with more fuel, less air.
I live at 8000ft and routinely drive to 12000ft so that may not be an issue for you.

Measured pre turbo. if you measure it post turbo you are just guessing.

Quote:
Originally Posted by navydevildoc
OK, call me crazy but I thought the EGR plate sits right on the exhaust manifold just before it hits the turbo? Are we talking about 2 different places?

Does anyone disagree with a 1200 degrees pre-turbo maximum?

#5

Red90
Status: Offline
John B.
1991 Defender 90, 200TDI
Site Team

Join Date: Sep 2003
Location: Calgary
Posts: 9,862
Registry

1300 is fine as a max as long as you have a gauge pre turbo.

#6

navydevildoc
Status: Offline
Neill Thornton
1984 D90 300 Tdi / 1965 Series IIA
Site Team

Join Date: Nov 2010
Location: San Diego, CA
Posts: 1,586
Registry

Right, and the EGR plate sits just before the turbo, yes?

#7

TS888
Status: Offline
Tony Sims
1984 110
Member

Join Date: Mar 2011
Location: White Salmon, WA
Posts: 460

Quote:
Originally Posted by navydevildoc
OK, call me crazy but I thought the EGR plate sits right on the exhaust manifold just before it hits the turbo? Are we talking about 2 different places?

Does anyone disagree with a 1200 degrees pre-turbo maximum?

EGR plate is before the turbo on a 300TDi.
__________________
Quote:
[appropriated from Ren Ching] Most faults can usually be traced to the badge on the grill.
Quote:
Originally Posted by chris snell
This is straight out of the Manual for Build Builders.
Tony
1984 110 "Smokey" (sold)

#8

navydevildoc
Status: Offline
Neill Thornton
1984 D90 300 Tdi / 1965 Series IIA
Site Team

Join Date: Nov 2010
Location: San Diego, CA
Posts: 1,586
Registry

Thanks Tony, just wanted a second opinion on it before I made a blonde hair mistake and blow something up.

#9

Viton
Status: Offline
Deaf Ember
Smart 4x4
Member

Join Date: Jan 2009
Location: La
Posts: 1,242

Tony is right the plate is pre-turbo on the 300tdi, sorry, I was thinking of the one on my '85 524td, it's after. The EGT sensor probe tip should sit mid way in the exhaust stream, so I bougt one that is 2" long to get it there.

#10

navydevildoc
Status: Offline
Neill Thornton
1984 D90 300 Tdi / 1965 Series IIA
Site Team

Join Date: Nov 2010
Location: San Diego, CA
Posts: 1,586
Registry

No worries Dennis, just wanted to make sure I was thinking of the right place!

#11

TS888
Status: Offline
Tony Sims
1984 110
Member

Join Date: Mar 2011
Location: White Salmon, WA
Posts: 460

Don't worry about it Dennis, I finally had to go look because I started second guessing!
__________________
Quote:
[appropriated from Ren Ching] Most faults can usually be traced to the badge on the grill.
Quote:
Originally Posted by chris snell
This is straight out of the Manual for Build Builders.
Tony
1984 110 "Smokey" (sold)

#12

Uncle Douglas
Status: Offline
Doug Crowther
A defender in every driveway-motto
D-90 Source Vendor

Join Date: Dec 2007
Location: Gods Country- Central Virginia
Posts: 12,224
Registry

Quote:
Originally Posted by navydevildoc
OK, call me crazy but I thought the EGR plate sits right on the exhaust manifold just before it hits the turbo? Are we talking about 2 different places?

Does anyone disagree with a 1200 degrees pre-turbo maximum?
It is.
I think what you want to do is try and adjust the pump such that you get the performance you want with the min amount of smoke. You then want to watch the egts as you push it up one of those long grades you refer to. I usually downshift @ 1250. The temp drops immediately when you do.
__________________
Good judgement comes from experience,experience comes from bad judgement.

Dividing Creek Imports
Worldwide Vehicle Shipment and Importation Service
Restoration & Modification work


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

410.693.1391


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

#13

Viton
Status: Offline
Deaf Ember
Smart 4x4
Member

Join Date: Jan 2009
Location: La
Posts: 1,242

Under throttle, low pressure, on the boost guage, equates to high EGT's and high pressure (good air flow to take away high temp's) equates to greatly reduced EGT's.

#14

Oliver Whiting
Status: Offline
Oliver
84 110, 94 NAS90,Bunch of EX-mods
Member

Join Date: Jan 2011
Location: Durango CO USA
Posts: 402

max egt
Just remember that Aluminum melts at 1220 f. The cylinder head on a 300tdi is Aluminum. Yes it has cooling water jackets that help but the turbocompressor housing is also aluminum with no water cooling. I am sure there is a way to calculate the amount of heat soak to the aluminum compressorhousing to figure out how high you can push it. Cylinder heads are expensive if you warp or crack one on a 300 tdi so play it safe by a couple hundred degrees. Ask me how I know.

------ Follow up post added May 9th, 2011 06:33 PM ------

Check out this link for tuning if you have not already seen it.




http://www.landroverweb.com/Pdf-file...ines_Rev_2.pdf

#15

defeyago
Status: Offline
Santiago
´96 Defender 110 VGTdi SW County
Member

Join Date: Sep 2007
Location: Buenos Aires, Argentina
Posts: 228
Registry

1328 constant pre-turbo. I try to keep mine below 1000 max. It normally cruises at 65mph between 550 and 700 hundred depends on the load/terrain. I´ve touched 1100 for short periods of time though. Anyways I have the 2.8HS TGV turbo on my 300Tdi.

Regards,
__________________
SANTIAGO
´96 Defender 110 VGTdi SW County
´97 Defender 110 Tdi SW
´04 Freelander Td4 5 dr.
´97 Alfa Romeo 146 TD (Sold)
´95 Volvo 850 GLT Estate
´94 Discovery Tdi (Webasto equipped)

#16

navydevildoc
Status: Offline
Neill Thornton
1984 D90 300 Tdi / 1965 Series IIA
Site Team

Join Date: Nov 2010
Location: San Diego, CA
Posts: 1,586
Registry

Quote:
Originally Posted by defeyago
1328 constant pre-turbo. I try to keep mine below 1000 max. It normally cruises at 65mph between 550 and 700 hundred depends on the load/terrain. I´ve touched 1100 for short periods of time though. Anyways I have the 2.8HS TGV turbo on my 300Tdi.

Regards,
This was going to be my next question, I thought maybe my EGT sensor was no good as I wasn't ever over 750, usually hovering about 500.

Looks like I have some wiggle room....

#17

Manimal
Status: Offline
Carl Jonsson
1995 NAS D90 #219
Site Team

Join Date: Sep 2008
Location: Portland, OR
Posts: 3,236

I'm planning on ordering an EGT kit (gauge & sender) from eGauges and install the sender on the EGR blanking plate. To confirm: the EGR blanking plate is pre-turbo, right? So this location should give an accurate reading?

Second question. Has anyone ordered the kit from eGauges before? Do you know if the sender is long enough to fit in this location for a proper read? The site doesn't say how long the included sensor is.

#18

navydevildoc
Status: Offline
Neill Thornton
1984 D90 300 Tdi / 1965 Series IIA
Site Team

Join Date: Nov 2010
Location: San Diego, CA
Posts: 1,586
Registry

Yup, the EGR plate on a 300Tdi is pre-turbo.

I also ordered the VDO kit from eGauges. It will come with a bushing that the probe bolts to. I had Josh (crash303) TIG weld it on to my EGR plate at an angle so that it was sitting in the exhaust stream.

I can take pics in a day or two when I finally get home.

#19

Manimal
Status: Offline
Carl Jonsson
1995 NAS D90 #219
Site Team

Join Date: Sep 2008
Location: Portland, OR
Posts: 3,236

Thanks Neill. No rush at all as it'll be a couple weeks before I get to it. Just wanted to make sure the included probe/sender is long enough. Sorry to hear about all the trouble on your trip.
__________________
Land Rovers. A loosely associated collection of parts, generally traveling in the same direction.

#20

Overlander
Status: Offline
mark kellgren
in between D's in an 04 D2
Member

Join Date: Mar 2006
Location: Charlotte, NC
Posts: 6,537
Registry

Quote:
Originally Posted by defeyago
1328 constant pre-turbo. I try to keep mine below 1000 max. It normally cruises at 65mph between 550 and 700 hundred depends on the load/terrain. I´ve touched 1100 for short periods of time though. Anyways I have the 2.8HS TGV turbo on my 300Tdi.

Regards,
X2. I've touched 1100 maybe once. around a thousand and I'm laying off a bit on the throttle. I just replaced a cracked head and don't want to do that again. I don't know what caused my cracked head, but it must have happened before I installed my EGT gauge. Now I'm smarter.



Page 1 of 2 1 2 >

Lower Navigation
Defender Source > Defender & Series Technical Discussions > Defender Technical Discussions
300tdi Max EGT

Tags
300tdi, tdi


« 300 tdi front engine cover | Making Aluminum Shiny »

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
BB code is On
Smilies are On
[/URL] code is [B]On[/B]
HTML code is [B]Off[/B]
[URL='http://www.defendersource.com/forum/misc.php?do=linkbacks#trackbacks']Trackbacks[/URL] are [B]Off[/B]
[URL='http://www.defendersource.com/forum/misc.php?do=linkbacks#pingbacks']Pingbacks[/URL] are [B]Off[/B]
[URL='http://www.defendersource.com/forum/misc.php?do=linkbacks#refbacks']Refbacks[/URL] are [B]Off[/B]
[URL='http://www.defendersource.com/forum/misc.php?do=sknetwork&page=rules']Forum Rules[/URL]

[URL='http://www.defendersource.com/forum/f6/300tdi-max-egt-31208.html#top'][IMG]http://www.defendersource.com/forum/images/buttons/collapse_tcat.gifSimilar Threads
Thread Thread Starter Forum Replies Last Post
300Tdi airflow or max RPM? Gkase Defender Technical Discussions 10 July 15th, 2007 02:26 PM
NAS D90 300tdi exhaust? Chris Cox Defender Technical Discussions 19 June 13th, 2006 03:59 PM
300Tdi wings/ radiator finisher (defender) Lyman Wanted 2 March 8th, 2006 04:51 AM
1995 Discovery 300TDI, Trail Ready.... Joe B For Sale - Vehicles 1 June 23rd, 2004 05:26 PM
Mounting 3-Link Crossmember on 300tdi chassis Chris Cox Defender Technical Discussions 4 March 10th, 2004 01:12 PM



» Recent Discussions
NAS on BAT
300 TDI coolant hose routing question
1995 NAS 3.9 -over fueling
Beers?
Brand New full set of Sawtooth wheels
New Defender News
NAS FG hard top
GM 292 Straight 6 - Yet another...
MOD Snatch Bar
Free, You Pay Shipping Thread
1985 Land Rover 110 County v8 in TN
No Spark issue, can't for the life of...
ROAV Rovers At Wintergreen - April 6-8...
Series 3 Gearbox rebuild
» Defender Registry

The Antichrist
navydevildoc
blondy
01CRF10

sorry for the long winded thing was trying to copy first paragraph anyway mines pre turbo

allan downes said:

sorry for the long winded thing was trying to copy first paragraph anyway mines pre turbo

Click to expand...

Are those people American? If so they will probably be quoting Fahrenheit temps, if that's why you've posted it?

no its a uk site yeah just looked san diego der but cannot inderstand mines not that tweaked why is so high ??

allan downes said:

sorry for the long winded thing was trying to copy first paragraph anyway mines pre turbo

Click to expand...

The very first post in that indicates that they are measuring fahrenheit

flat said:

The very first post in that indicates that they are measuring fahrenheit

Click to expand...

Just had another look and they are American and Canadian.

1250 Fahrenheit = 677 Celsius

yes thats what i had the egt is mostly on the lower ,like 300 400 on bypass ect and lower it only climbed up to 740 and then reduced quickly but the temp was ok on the engine as its never overheated , ive always watched out for that .

Is there a build up of carbon inside you exhaust manifold maybe?

@allan downes I have a tuned 300Tdi - full width IC, and tuned pump. EGT probe is where the EGR valve was..

IF you are anywhere near 740, I'd suggest it'll end in tears, and quite quickly. These temperatures will anneal the alloy head, and you can guess what happens next.

I have been told, and it is backed up by Internet searches that the head is Ok to about 719C - but, and it's a big BUT - at 720C it's all over - ECT will be irrelevant at this point IMHO, and in any event, you are not monitoring this with the standard sender and gauge - it is simply a guesstimate, and probably a poor one, and simply unable to respond in a timely manner to such an extreme situation.....

I'd suggest extreme caution, and that you speak to someone who has more experience than me. Have a nosy here,

www.jeremyjfearn.co.uk

and IMHO, try and speak to him - IIRC he works away a lot now, but you might be lucky....

Also , as above, 1250 F is 676.667 C - so "safe" enough, given the figures I mentioned above....

thanks

allan downes said:

yes thats what i had the egt is mostly on the lower ,like 300 400 on bypass ect and lower it only climbed up to 740 and then reduced quickly but the temp was ok on the engine as its never overheated , ive always watched out for that .

Click to expand...

As I said earlier I'm absolutely no expert in this, just done some reading around the subject. Monitoring the EGT is done as a guide to the air/fuel mixture. This is important as when you play around with the air/fuel combo you can be tinkering with engine failure.

Hi Allan,

If you do a search for Boost ring , you will find where @battenburg suggests iirc a limit of 650C. I start to calm down as my 300tdi starts to head towards those figures. Mine has a pin and ring, and the pump has been slightly adjusted, But I did wonder how std the fuel and star wheel were when I got it originally..

My EGT is fitted to the EGR blank on the exhaust.

Cheers

hi thanks guys ive only today started looking into it and think i might put the truck into somone as they can either look at the pump as someones played with it and ive been trying to get it right

allan downes said:

hi thanks guys ive only today started looking into it and think i might put the truck into somone as they can either look at the pump as someones played with it and ive been trying to get it right

Click to expand...

Post #132 FYI.
https://www.landyzone.co.uk/land-rover/200-tdi-boost-ring.317956/page-7
Cheers