Manual/ auto. And tyre size.

 

Manual/Auto sounds good! Tyre size could get a little tedious although we do know larger sizes with standard diffs may result in higher engine load and temps. Might throw in whether dawes and EGR done or not.

OK put them all in and I will see how we go. Please keep it simple and use the following format, cut and paste maybe:

GU ZD30 only

Auto or Man
Di or CRD
Dawes fitted Yes/No
EGR blocked Yes/No
Brand of EGT Gauge ----------
Sensor mounted --- mm? from Manifold flange or Dump pipe flange
Cruising temps ---
Towing temps ---
City temps ---
Tyre size ---

 

thats a great idea.

 

Auto
Di
Dawes fitted Yes
EGR blocked Yes
Chipped --- Yes (Dtronic)
Exhaust --- Custom built SS 100cpsi Cat 3" flow through.
Brand of EGT Gauge ---VDO Analogue
Sensor mounted about 200mm from Dump pipe flange
Cruising temps --- 350c @ 100km/h with 14psi
Towing temps --- 400c @ 100km/h with 14psi
City temps --- under 250c with 10psi
Tyre size --- 285/75-16

 

Auto
Di
Dawes fitted--- Yes
EGR blocked--- Yes
Chip fitted ---Yes
Chip type--- D.P
Chip setting--- 6
Exhaust---3 inch Taipan XP
Brand of EGT Gauge ---VDO Analogue
Sensor mounted about 100mm from Dump pipe flange
Cruising temps --- 300c @ 100km/h with 12psi
Towing temps --- 420c @ 100km/h with 12psi
City temps --- 220-250c with 8psi
Tyre size --- 305/70-R16

 

--------------------------------------------------------------------------------

09 Manual
CRD
Dawes fitted No
EGR blocked No
Chip fitted Yes
Chip type D.P
Chip setting 7
Exhaust Standard
Brand of EGT Gauge ---VDO Analogue
Sensor mounted about 150mm from Dump pipe flange
Cruising temps --- 450-550c @ 100km/h with 10-12psi
Towing temps --- 500-750c @ 100km/h with 12-14psi
City temps --- 400-450c with 10-12psi
Tyre size --- 285/75-R17

 

--------------------------------------------------------------------------------

09 Manual
CRD
Dawes fitted No
EGR blocked No
Chip fitted Yes
Chip type D.P
Chip setting 7
Exhaust Standard
Brand of EGT Gauge ---VDO Analogue
Sensor mounted about 150mm from Dump pipe flange
Cruising temps --- 450-550c @ 100km/h with 10-12psi
Towing temps --- 500-750c @ 100km/h with 12-14psi
City temps --- 400-450c with 10-12psi
Tyre size --- 285/75-R17

Not wishing to hijack this thread, but may I ask,
Is 750 c too high, mine runs up to 600 - 650 c up a steep climb under a heavy right foot and i s**t myself that I'm going to cook the rear pistons.
I have my Pyro sender installed 40 mm post turbo flange, am I too close and that’s why my temps seem to run higher (+75 to 100C) than most I have read about in this thread.

 

Hey Geeyoutoo, I thought I would also add a chip category & whether or not the exhaust has been done. Hope you dont mind..

 

Chip can make a difference to temps as most just tend to err on the overfuel side and modded exhaust should reduce temps. OK if people want to return to their post and edit, add whether chipped or not, standard or modded exhaust.

 

Manual
Di
Dawes fitted Yes
EGR blocked Yes
Brand of EGT Gauge --- Digital (not sure of brand)
Sensor mounted about 150mm from Dump pipe flange
Cruising temps --- 260-300c @ 100km/h with 14psi
Towing cruising temps --- Between 350-480 km/h with 14-16psi max (will sit on 350 c on flat cruising)
City temps --- under 350c max with between 5-14 psi Depending how hard I push it
Tyre size --- 265/70-17"
Note; Temps have dropped since fitting 3"exhaust & Hi Flo Cat (from std exhaust temps)

 

Auto
Di
Dawes fitted Yes
EGR blocked Yes
Brand of EGT Gauge ---VDO Analogue
Sensor mounted about 100mm from Dump pipe flange
Cruising temps --- 350c @ 100km/h with 6-12psi Depending on loading
Towing temps --- 400c @ 100km/h with 12psi
City temps --- under 250c with 10psi, 300 on 2-4psi just putting around.
Tyre size --- 285/75-16

 

Auto
Di
Dawes fitted - Yes
EGR blocked - Yes
Brand of EGT Gauge - Thermoguard digital
Sensor mounted about 200mm from Dump pipe flange
Cruising temps -350c @ 100km/h with 12psi
Towing temps - 450c @ 100km/h with 14psi (rarely peaks at 550c)
City temps - peaks at 350c with 10psi because Brisbane is hilly, otherwise sub 250c
Tyre size - 285/75-16
Chip - Safari DTronic
Exhaust - 3" (TaipanXP), no cat
Intercooler - ARE u/g core std end tanks
Add'n Fuel pump - two Walbros in parallel

 

Manual
Di
Dawes fitted Yes
EGR blocked Yes
Brand of EGT Gauge --- Digital (Fox Shooter supplied)
Sensor mounted about 150mm from Dump pipe flange
Cruising temps --- 220-300c @ 100km/h with 10-12psi
Towing cruising temps --- Unknown
City temps --- under 400c max with between 5-14 psi Depending how hard I push it
Tyre size --- 265/70-17"

 

Di
Dawes fitted-No
EGR blocked-Yes
Needle valve-no
Brand of EGT Gauge-Autometre Phantom, Analogue.
Sensor mounted about 60mm from Dump pipe flange
Cruising temps-240c-450C @ 100km/h with 10-12psi
Towing temps-400C-550C @ 100km/h with 10-12psi
City temp-150C-350c with 5-8psi
Tyre size-265/75-16
Chip-Safari DTronic
Exhaust-standard
Intercooler-standard

 

GU ZD30
161000klms
Man
Di
Dawes and needle valves fitted Yes
EGR blocked Yes
Brand of EGT Gauge American spec drift digital
Sensor mounted 150 - 200 mm from Manifold flange or Dump pipe flange
Cruising temps 250 -310 c @ 100kph with 11 - 13psi
Towing temps from 350-400c @ 100kph cruising with 13 -14 psi on the flat sections in 5th gear & up to 530c when pulling up the ranges with 15.5 psi in 3rd gear
City temps 200-250c with 8-12 psi depending on the speed from 40 - 80 kph
Tyre size BFG Muddies 285/75/16
ARE intercooler
Beaudesert 3 inch system no mufflers & high flow cat .
Top mount intercooler fan .
3/4 ARB roof rack constantly on car .

 

GU ZD30 2003
286,000km
Auto
Di
Dawes fitted Yes
EGR blocked Yes
Brand of EGT Gauge Auber - Fox Shooter
Sensor mounted 150 to 200mm from Dump pipe flange
Cruising temps 300-340c @ 100km/hr 10-12psi
Towing temps 340-380c @ 100km/hr 11-13psi
City temps 200-280 with 8-10 psi
Tyre size 265/75 R16 ATR
Beaudesert 2.75" system no Cat, one big muffler

 

Auto or Man...man
Di or CRD... Di
Dawes fitted Yes
EGR blocked Yes
Brand of EGT Gauge Autometer.
Sensor mounted ---150mm Dump pipe flange
Cruising temps ---500F on35's 600F on 36'simex still running standard diff ratios 12psi
Towing temps --- dont tow.
City temps --- 400 to 500F
Tyre size ---big.. see above
Laminova intercooler.
Beaudesert 2.75" system highflow Cat. no muffler.
DP Chip

 

Need more players to get meaningful result!

 

GU ZD30 2008 Wagon
32,000km
Manual
CRD
Dawes fitted - No
EGR blocked - No
Brand of EGT Gauge - Scintex, clamp on thermocouple & alarm at 575c
Sensor mounted - 50mm from pipe flange after Turbo
Cruising temps 350-400c @ 100km/hr 10psi
Towing temps 450-550c @ 100km/hr 12psi
City temps 350 with 8-10 psi
Tyre size 265/75 R16 ATR
No exhaust mods, catchcan, low water level alarm, Scangauge

 

There always seems to be a question of where and what EGT temps are acceptable with GU ZD30 motors. If any of you are interested in the result, Ill correlate it.

Hi mate.

Appreciate what you are doing, but have you thought of trying to get the information out of Nissan (I don't mean the dealers).
I realise this wouldn't be easy but only they know exactly what materials they are using and there properties and will be able to give you 'what EGT temperatures are acceptable with the GU ZD30 motors'.
I'm just thinking that this survey will give you what a few members of the forum think is acceptable and a lot of them have been chipped, fuel wound up etc.

Just a thought.

 

Well I think that is one of the purposes, there was a heap of general information on these mods, but the real issue if you have mods and gauges and you can see EGT's what is it in relation too. Its a pretty pointless exercise if you don't have definable limits.

One thing I have noticed is there appears to be some pretty decent consistency which indicates that people are pretty much using standard locations for sensors etc and indeed the mods are delivering consistent results across the board. I think this really helps someone doing research on this subject instead of just getting the it works line and taking it for gospel.

One of the major concerns for those with old ZD30's was failures were mainly caused by inconsistent fueling and boost pressure ranges. As detailed above its very apparent the mods are creating a consistent operating environment, the next thing as you alluded to is to work out how this relates to Nissan's engineered requirements for the engines operating range.

 

CRD manual C/C
Dawes fitted-No (but needle valve to limit max boost and control spool rate)
EGR blocked-Yes
Brand of EGT Gauge-Auber, digital.
Sensor mounted about 150mm from Dump pipe flange
Cruising temps-300c-480C @ 100km/h with 6-10psi
Cruising temps-280c-420C @ 100km/h with 10-15psi
Loaded temps-400C-650C @ 100km/h with 6-10psi
Loaded temps-350C-600C @ 100km/h with 10-15psi
(don't tow, but carry 600kg camper)
City temp-200C-260c with 5-15psi
Tyre size-265/75-16
Chip-DP, setting #7
Exhaust-Beaudesert 3" ceramic dump into 2.5" mandrel-bent exhaust, high-flow cat.

- Load/hills make a huge difference, ambient temperatures make a significant difference.
- lower boost gives better economy, less power, higher EGT's. Higher boost gives the opposites.

 

Most Nissan Techs would say that 600C post turbo is fine because that was the way the engine was engineered. Also consider that higher exhaust temps will aid in the efficiency of the cat converter.

Anyone that say’s blocking the EGR will raise EGT’s, simply haven’t done it and most likely just repeating what they have been told. I think it would be great if the ZD30 didn’t need to be modified to last, but I wouldn’t risk that knowing their history.

As far as I’m concerned the lower the exhaust temps are the better, knowing that there is a piston melting issue. Excess heat is a sign of inefficiency, but removing the heat can help in many ways. The question should be about what mods reduce EGT’s to what levels, not about what Nissan recommend. Don’t get me wrong, I’m sure Nissan employ some brilliant engineers, but they clearly made some errors in this case.

 

Also consider that higher exhaust temps will aid in the efficiency of the cat converter.

On this subject, have a friend who is a Peugeot mechanic, he tells me on recent models they have post cat sensors which analyse cat temp, if temp gets too low the cat will not be effective so the system loads up the alternator to work the motor harder and thus bring up EGT, unfortunately this is the direction we are heading with env control (This same system injects a nasty fluid into the fuel system to clean build up in the cat) worry!

 

CRD- Build date Aug 2008
Auto (ST)
Dawes ---- No
EGR blocked--- No
brand of EGT gauge------ Fox shooters
Sensor mounted---- 50mm past dump pipe flange
cruising temps unloaded----450---- 650 on a steep hill in overdrive
cruising temps (2.3 t van)--at 95kph in 3rd gear 450. --- 700 on a steep hill
City temps 350 to 500 depending on terrain
Tyre size 275/65/17
Dp chip set at 6
top mounted 9 inch intercooler fan
2 inch lift with snorkel if it makes any difference

Loafer

 

2004 Series III Auto Di
Dawes fitted - Yes
EGR blocked - Yes
Brand of EGT Gauge - VDO
Sensor mounted about 50mm from Dump pipe flange
Boost pick up point between aftercooler and throttle body
Cruising temps - 280c @ 100km/h with 6psi
Towing temps (800kg) - 280-380c @ 100km/h with 8-16psi
City temps - 200-250c with 2-8psi
Tyre size - 265/75/16
Chip - Safari DTronic
Exhaust - 2.5" dump to tail (custom)
Intercooler - Standard Nissan with fan and heat shield tape
Add'n Fuel pump - two Facets in parallel
Fuel conditioner - Chemtech diesel power and FTC Decarbonizer

 

I think htere is alot of value in this thread, now particularly with Chaz and Whitie on board.

Well done.

 

I think there is alot of value in this thread, now particularly with Chaz and Whitie on board.

Well done.

 

My EGT temps.

2003 series 111 Auto Di with new long motor, radiator, water pump & thermostat.
EGR blocked - Yes
Dawes fitted - Yes
Needle valve fitted - Yes
Brand of EGT Gauge - Autometre analogue Sensor mounted about 120-150mm from Dump pipe flange
Cruising temps - 350c-410C @ 100km/h with 8psi in OD (ambient temp 22degC) 2100rpm
Cruising temps - 250c-320C @ 100km/h with 12psi in OD (ambient temp 22degC) 2100rpm
Loaded temps - 400C-575C @ 100km/h with 6-10psi in OD (ambient temp 18degC) 2100rpm, long hill climb
Loaded temps - 350C-525C @ 100km/h with 10-16psi OD off (ambient temp 18degC) 3000rpm, long hill climb
City temps - 200-260C with 4-10psi
Tyre size - 285/75-16
Chip - Safari DTronic
Exhaust - Taipan 3" ceramic dump into 3" mandrel-bent exhaust, high-flow cat.
Intercooler - Standard Nissan with 9" fan fited ontop.
ARB delux steel rack (1800mm long), & foxwing fitted, 2" lift. Kerb weight 3000kg

Will double check cruising temps and RPM's this afternoon if possible.

 

Can anyone suggest further categories.[/QUOTE]

Are you assuming that dawes fitted includes manual boost control? If not, that perhaps ought to be included as this makes a huge difference to mine.

 

Are you assuming that dawes fitted includes manual boost control? If not, that perhaps ought to be included as this makes a huge difference to mine.

Agreed, that is why I added it to mine. & people should possibly comment on which gear the test was completed as well as RPM as this makes a huge difference to my results including the spool up rate of the turbo and EGT's.