ThePog Posted December 21, 2020 Author Share Posted December 21, 2020 48 minutes ago, My name is Russell said: I have a tin of lumbersider, it might do as flo-viz in a pinch. 1 1 1 Quote Link to comment Share on other sites More sharing options...
yetchh Posted December 21, 2020 Share Posted December 21, 2020 1 hour ago, JustHarry said: I find with my 78 series cruiser it's a lot better to just drop a gear and travel a bit slower. Keeps egts low and doesnt lug the motor at low rpm The only thing you do by keeping it in a high gear is make your egts hit to roof and do damage Pulled most of 3t from mot to chch. Never had any overheating issues. Even up Spooners/hope saddle/Lewis That's just testing it, I otherwise drop out of o/d with hills and or towing.. Quote Link to comment Share on other sites More sharing options...
Mof Posted December 21, 2020 Share Posted December 21, 2020 What about a short shroud/ scoop at the front of the exit to create a venturi of the air passing under the vehicle drawing air out through the rad Quote Link to comment Share on other sites More sharing options...
anglia4 Posted December 21, 2020 Share Posted December 21, 2020 Just move back to Taranaki. We have passive water cooling of all the things pretty much all year round. Quote Link to comment Share on other sites More sharing options...
ThePog Posted December 21, 2020 Author Share Posted December 21, 2020 1 hour ago, Mof said: What about a short shroud/ scoop at the front of the exit to create a venturi of the air passing under the vehicle drawing air out through the rad If I had a 3d scanner i would scan the lot and do some flow analysis, pretty sure there is a budget CFD in Solidworks. 11 minutes ago, anglia4 said: Just move back to Taranaki. We have passive water cooling of all the things pretty much all year round. My family insists the weather in Hawera is just as good as Nelson's, I laugh in their faces. Quote Link to comment Share on other sites More sharing options...
flyingbrick Posted December 21, 2020 Share Posted December 21, 2020 @Roman is really good at cfd stuff and also graphs. Dave plz help. Quote Link to comment Share on other sites More sharing options...
cletus Posted December 21, 2020 Share Posted December 21, 2020 If you need more cooling so you have a bit of a safety margin, have you got room somewhere for a smaller radiator in the air flow at the front? 1 Quote Link to comment Share on other sites More sharing options...
flyingbrick Posted December 21, 2020 Share Posted December 21, 2020 You could buy a cheap Chinese w2a intercooler and run a coolant line through the wet side, then feed the air side by a naca duct. /hot air balloons etc. Quote Link to comment Share on other sites More sharing options...
ThePog Posted December 21, 2020 Author Share Posted December 21, 2020 18 minutes ago, cletus said: If you need more cooling so you have a bit of a safety margin, have you got room somewhere for a smaller radiator in the air flow at the front? I have thought about this as a possibility, there is room for something for sure. This would be a last ditch effort though. Plus I have plans to front mount the intercooler in that space. Also some of the excess heat might be generated from the poor mans fuelling set up, I imagine the boost compensator would even out heat production which might help things along. 1 Quote Link to comment Share on other sites More sharing options...
ThePog Posted December 21, 2020 Author Share Posted December 21, 2020 19 minutes ago, flyingbrick said: You could buy a cheap Chinese w2a intercooler and run a coolant line through the wet side, then feed the air side by a naca duct. /hot air balloons etc. interestingly the radiator has two ports on each tank, not sure what they are for. I could hook up an auxiliary radiator somewhere up in the airflow and pump through that. Jesus, it will be fairly bristling with radiators by the time I am done... Quote Link to comment Share on other sites More sharing options...
mjrstar Posted December 21, 2020 Share Posted December 21, 2020 15 minutes ago, ThePog said: interestingly the radiator has two ports on each tank, not sure what they are for. I could hook up an auxiliary radiator somewhere up in the airflow and pump through that. Trans cooler /heater probably... 1 Quote Link to comment Share on other sites More sharing options...
Roman Posted December 22, 2020 Share Posted December 22, 2020 Cooling the oil can lessen the load on the radiator, as you get a lot of oil > coolant heat transfer Oil gets to a lot of hotter places that coolant doesnt, and then transfers into the coolant via block And yeah if you have a trans cooler that's using the radiator bottom tank then biff that too for an air cooler 1 Quote Link to comment Share on other sites More sharing options...
ThePog Posted December 22, 2020 Author Share Posted December 22, 2020 8 minutes ago, Roman said: Cooling the oil can lessen the load on the radiator, as you get a lot of oil > coolant heat transfer Oil gets to a lot of hotter places that coolant doesnt, and then transfers into the coolant via block And yeah if you have a trans cooler that's using the radiator bottom tank then biff that too for an air cooler Na there's no trans cooler, I just sealed those ports off. Might be an idea to drop an oil cooler in there tho. Quote Link to comment Share on other sites More sharing options...
Popular Post flyingbrick Posted December 22, 2020 Popular Post Share Posted December 22, 2020 6 2 2 Quote Link to comment Share on other sites More sharing options...
Evan Posted December 22, 2020 Share Posted December 22, 2020 On 25/11/2020 at 21:07, anglia4 said: Dynafari! how good! Does that mean one year WoFs on 30 year old parts? Quote Link to comment Share on other sites More sharing options...
Popular Post cletus Posted December 22, 2020 Popular Post Share Posted December 22, 2020 Even better, 3 year wofs 10 1 Quote Link to comment Share on other sites More sharing options...
ThePog Posted December 22, 2020 Author Share Posted December 22, 2020 58 minutes ago, cletus said: Even better, 3 year wofs How long will that last for? Quote Link to comment Share on other sites More sharing options...
tortron Posted December 22, 2020 Share Posted December 22, 2020 3 years then to one year From 1 July 2014, vehicles first registered on or after 1 January 2000 must undergo a WoF test at first registration, at three years, and then annually after that; older vehicles must undergo a WoF test every six months. 1 Quote Link to comment Share on other sites More sharing options...
Popular Post ThePog Posted December 28, 2020 Author Popular Post Share Posted December 28, 2020 I have spent the last week or so chipping away at the changes to the rad layout. I have made the small fan into a pusher and mounted it to the outside of the rad. There are now three 'chambers', the front one feeds the small fan which blows constantly, the other two feed straight into the rad. The big fan is still a puller but now sits behind the two back chambers. There is also a bit of extra sealing/ducting lovins. I may yet shroud the big fan but I'll see what happened with this. The little fan could be a bigger one as well. The result is that driving around town it doesn't seem to cycle the big fan at all (but obviously it will when in traffic), then on the open road it still cycles but nowhere near as much. I'm happier with that for sure but I will run it like this for a bit and get a feel for the performance.... 12 Quote Link to comment Share on other sites More sharing options...
ThePog Posted December 31, 2020 Author Share Posted December 31, 2020 Righto, I need to get some opinions from you bitches as the coolant is being weird. A few days ago I did a big mission around town, when I was back and it had cooled down I checked the coolant level, sweet as. Then I did a wee jaunt layer that day to show it off to my uncle who was visiting, when I checked it later it needed a cup of coolant. Filled it, did a mission all the way into town the next day, levels sweet. 10 minute drive this morning, the overflow is full and spilling on the ground. Granted I had been topping it up so naturally the overflow would get fuller. It kindof feels like it has something to do with whether the thermostat opens during a trip or not. This is the only thing I can think of that is definitely different in the short/long trip situations. My current theories of things that might be contributing are; 1. The expansion tank might be a bit low Vs the height of the filler, but this shouldn't really make a difference...? Maybe mounted above the filler it would always suck fluid back in, I dunno. I can mount it high in the cab and see first hand what's going on if needed. The hose is new so shouldn't have any leaks. Maybe I need to change it to an overflow type. 2. The rad cap isn't playing the game, maybe because the filler neck isn't exactly the same geometry as it is an aftermarket that was welded on. I did check this but maybe it needs more investigation. The rad cap is new and 'oem'. 3. The water pump is working too hard and somehow that is fucking things up. I could put a secondary electric pump in there to help things along? 4. I have managed to blow the head gasket with all the boosts. I have some nebulous ideas around the long flow path and the water pump power and what happens when the thermostat opens, but nothing to definitively explain it. Lay it on me.... Quote Link to comment Share on other sites More sharing options...
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