Awesome info, thanks very much mate!
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Awesome info, thanks very much mate!
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Back home out of the old Acco now mate, apologies for the one liner reply earlier today.
Any pictures when time permits and findings on your new thermostat of choice 88/82C would be greatly appreciated [emoji106][emoji106]
I’ll hide the credit card away from my late night self until I kindly hear your W2A + TS success hopefully!
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We just jumped across a few dozen hills onto the Western Ring Road for a 100kmph straight blast down to Werribee and back.
181km for 23.1L used (12.76L per 100km)
More or less water temps smack on 92C the whole way on the highway.
(100kmph @ 2,150rpm with 3.9 stock highway diffs powering 285/75r16 KM3 M/T’s @ 3,000kg GVM)
Really does appear that 92C is its “sweet spot” many thanks @nissannewby mate!
http://www.nissanpatrol.com.au/forum.../2019/10/4.jpg
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So that was using the 88°c or 82°c thermostat @MB?
The TD27 88C mate [emoji106][emoji106]
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Good to hear the feedback @MB !
I just done a round trip to mt dissa and tallarook and lugged the ol girl up the hume fwy hills good and proper and could not get her above 88. No way known. That was battling a reasonable headwind too heading north on a 76 thermo.
I think next chill season a higher thermo is in order.
Most welcome Hodgey mate!
I was experiencing a few months ago IIRC a max of 88C exactly too with the 76.5 TS and our 2.0T tipper trailer on tow along a similar highway.
I was honestly sceptical about this 88C TS for summer time 35+ ambient temps but are somewhat hopeful now it might still actually work all year round?
I’m very glad that Mat has kindly mentioned 92C as a sweet spot and are a lot more relaxed now knowing since its pot test conducted that it doesn’t fully open until 98C.
In theory we still have a fair way to go and can’t wait for summer to hit properly down here as it has been a long cold slightly wetter winter for once thankfully!
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Kind of sort of maybe possibly related to yours truly MB!
I stumbled upon a mechanic, engineer or whatever theyre called nowdays, having smoko at Newport railway maintenance yards down there this morning. I curiously asked why theres always Pacific National diesel-elecy units sitting there with high RPM, their gaskets being revved off just about any time you drive near there... Even though they're not tugging anything.
It's as if he read this thread, and his reply was on point!
They maintain a critical operating temperature of the engine, where the oil does it's job at its finest which creates a most efficient power level. Just like Mat mentioned, this "Sweet spot" ?!
Even when only "idling" it's more efficient for them to run it high to hold a temperature, because if it revs down below this temperature threshold , due to the size of the engine, revving it even higher to get back up to the efficient temperature just wastes time and fuel.
He also said, there is a minimum temp. they HAVE to reach and sit at before throttled up out of load. Otherwise it cant be RPM-ed higher.
Apparently from a cold start to reach this, sometimes they sit there for 60-90 minutes.
Would be nice to have 3000-ish HP in a TD like they do.... :D or 2200kW the generators create.
Sounds like a plan, Cheers Hodgey mate!
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Somewhat irrelevant to thermostats folks, big believer in stock designed positive/negative air pressure zones now.
Many a great sand driver folks hate these ‘Air Dams’ as they ‘rip off’ when reversing have read but do believe down here they are integral for our highway needs.
EDIT: Mrs MB’s near stocky dam :-)
http://www.nissanpatrol.com.au/forum...019/10/138.jpg
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We gave the old family wagon another good float work out this afternoon hauling Mrs MB’s young Clydesdale Cross (650kgish) up up over and across to Mansfield flatter valley ways for training.
Redarc alarm EGT’s on the stock TD42T are absolutely annoyingly and we are deliberately dropping cogs to keep under 575C up hills although very happy water still will not currently break 95C with some 3C to go until fully open on the TD27 88C thermostat so far found good folks!
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We should definitely park our family wagons side by side together one day Mark mate. I’m wondering if there is possibly any slight set up differences on the ZD30 conversion TD’s or are they all same same radiators, cowlings, rubber and plastic bits everywhere etc....?
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I reckon it's time to put an intercooler on the GU Markie
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Success....finally managed to just get the 88C thermostat to fully open up on our steppest test hill home bound.
http://www.nissanpatrol.com.au/forum...019/10/222.jpg
Our ambient temps have finally snuck a whisker over 30C and deliberately ran this test with A/C on flat out today.
http://www.nissanpatrol.com.au/forum...019/10/223.jpg
Coasting back down the other side she’s straight back to 89C so pretty happy with that.
http://www.nissanpatrol.com.au/forum...019/10/224.jpg
Bring on the hotter weather now as last summers max coolant temp was 98C too IIRC with the old 76.5C thermostat.
Here’s hoping that the factory blocked Jiggle Pins on these 82&88C thermostats although fantastic in winter hopefully don’t hinder over summer.
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Haven’t driven the old family GU faithful truckster for a little while now as was away working with the GQ almost as much loved kettle up north until this warming last weeks home. Scored a 39C ambient GU temp test day yesterday for a blast up our home test hill still on the Russian 88C winter TS as installed before.
http://www.nissanpatrol.com.au/forum...019/12/136.jpg
Finally managed to sneak a new 2019 record of 99C on this hill top once eased off the peddle with heatsoak and it blipped up there for a fleeting full open few seconds before back to old 76.5C TS same same too max of 98C summer found for us last year on the brand new then OEM radiator.
http://www.nissanpatrol.com.au/forum...019/12/137.jpg
Best I can nuffy understand from findings now is that regardless of purchased OEM thermostat settings the summer time ‘max’ temps in this wagon don’t seem to alter although the rest of the years warmer and down to seriously colder ambient temps hug so so much closer to healthier running temps of 88C + I smell and find much betterer :-)
Really keen for anyone please to trial the OEM 82C (apparently Aussie manual spec) version to see if they can achieve similar‘stability’ instead of huge ‘fluctuations’ as what originally did scared me and these beloved donks we have!
IMHO now: “It’s all in our cooling systems overall health”
~MB :-)
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Funny you should mention someone else trialling a 82° thermostat @MB, I just picked one up from Nissan on Wednesday [emoji6][emoji106]http://www.nissanpatrol.com.au/forum...019/12/138.jpg
I was thinking of fitting it as we move out of summer though.
Don’t be a pussy, stick it in now for comparison clarity Cremulator mate [emoji106][emoji106]
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Still got that 82deg @MB ? I'll send you some $ and give it a run if you do.
Sorry TJ, just installed it last week mate in a work GQ. Can’t really tell what it’s doing yet as the old ute only has an OEM gauge at the moment.
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Interesting thread MB. Nice one mate. So just fitted the 79c with the quikaz fan and hub. In have also just fitted the redarc guage you have which will give me insight into the water temps. I will have to get to k now tgis engine all over again now as this is a game changer. I think it 8s going to do my head in for a while though.
Is that the genuine 79deg stat your putting in or the dayco one from qikazz? I just ordered the dayco one from qikazz to give that a try. My temps aren't too bad most of the time just looking for a bit more stability and a scooch higher than the 74deg I saw it get down to on the down hill runs yesterday :/
Let me know how it goes. I've just put the new hub and fan in and love it. Temp still slowly climbs on those big hills towing a 2 ton camper but much slower than it used to.. and drop it back to 3rd and than fan roars and temps drop. Brilliant. I'm happy with the overall cooling for now, I'd just like the default temps to be a bit higher and more stable, will stop me watching it so much haha.
Hey mate, you know how your a bloody rippa Bloke. Did you by chance fit the Black control box for your gauge is an easily accessible location? Yesterday during the install i accidentally closed the bloody drivers door while the loom was hanging out and destroyed the black plug that goes into the black box. damn it. Looking like it is not available and i need to make something work. I was at Gauge Works Geelong today hoping i could just buy a black plug and re-pin it but no joy. He said it may well be a common plug for the back of a stereo and suggesting i go to a wrecker and see if i can find something to suire and then re-pin it.
I really need a couple of photos of it to be honest. and also very important, i need a good photo of the pin layout so i can re-pin it. I think it is a 4 wire but 8 pin connection.
In fact anyone with a Redarc 3 way gauge like this i would appreciate any help you have. Will make a call to Redarc tomorrow but not sure they will help. Surely im not the first person to do this. To my astonishment the plug is made from a very brittle hard plastic rather than a Urethane Resin and has just disintegrated.
Is this what you need?
You can download the manual from their site: https://www.redarc.com.au/egt-boost-...rature-display
Just underneath the price is the PDF.http://www.nissanpatrol.com.au/forum...2020/02/93.jpg
Cheers mate. Yeah I have that manual in hard copy.
No no have fully SMASHED this plug damn it. Beyond recognition. All the pins are safe but now out of casing. I need a new plug blank then re pin it.
http://www.nissanpatrol.com.au/forum...2020/02/94.jpg
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Ahh that plug. I was thinking one of the ones that went into the back of the gauge.
See what redarc say tomorrow, they've been great when I've dealt with them on the phone about warranty returns and picking their brains on wiring my temperature probe switch.
I'd be surprised if they didn't have a replacement plug they'd sell you. I'd assume it will be pricey though.
I'm gonna guess $16 [emoji6]
Wow. Thanks awesome.
So how smart was Luke at Geelong Gauge Works. Showed him the drawing in the manual and told him it was an 8 pin from memory. He went out to his shed and called me in a couple of minutes later and said does it look like that??? Common plug out the back of a stereo in a Holden barina and alike. Search the wreckers with a pair of side cutters
http://www.nissanpatrol.com.au/forum...2020/02/99.jpg
http://www.nissanpatrol.com.au/forum...020/02/100.jpg
http://www.nissanpatrol.com.au/forum...020/02/101.jpg
He did well. For $16 I will take a new Loom though. Thanks for your help.
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Quick update here.
Mechanic refused to swap out ts to 82 from hi flow 76 citing the load with the backpack aboard. Fair point.
So, on my annual Grumpyclaus run, Warwick, Tweed Heads etc from Childers, I reckoned to really test it, albeit running empty.
Away about midday, ambient temp here high 30's. Southwest to Yarraman and then directly west toward Toowomba. Temps never over 80. Egt's steady around 350.
Up the range from Yarraman at Thornville. Ambient temp 40+, flogging it all the way 110k plus.
Finally pushed it to 92 and egt's to 550. But seriously had to flog it, fuel gauge hated me.
Upshot, still thinking higher rated TS required.
@MB can't find the pics of full intercooler setup, will grab the camera over the weekend.
550 is the highest I've seen. Have had it to 500 prior, back pack on, fully provisioned and loooong uphill drag, temp no more than mid 80's.
Would put it down to the custom built rad', high flow ts and the W2A ic.
Really must bring my build thread up to date. Got lots of piccies on this 'puter, somewhere!!