Welcome to the Nissan Patrol forum. To post a question and to see less adds on the forum then you will have to register
first. We are an easy going friendly forum so join in the conversations and feel free to ask any questions.
Become a forum sponsor for only $20 and see no adds with faster page loading times and many extras benefits.
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
I’ll hide the credit card away from my late night self until I kindly hear your W2A + TS success hopefully!
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!
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.
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!
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.... or 2200kW the generators create.
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.