Well that is what you want. More heated surface area for the air to extract the heat from. So, if it has more of that than what you now have it will cool better. If you become desperate it is where you should go.
Oh! You have already done what I was suggesting. I was pushing for a thicker radiator = 3 core rather than 2 core. I am surprised by what the Brits are saying.
Thanks for that. Now it is a clear as daylight. I stupidly thought the pump was sending water TO the radiator. Now I see the heater connects to the suction side of the pump.
I don't understand what is going to drive the water from cyl #4 through the "heater" & where does back. At the "colder water inlet". Well the water went that way when it was used for the heater so there must be some pressure differential but I don't understand what it was.
The cooling of the water depends on the following:
1. Temp difference between ambient air & water in radiator.
The bigger the difference the more heat can be extracted.
So cooler air will give cooler water.
Hotter water will get cooled more.
Nothing much you can do here.
2...
That heat insulation limits the heat from getting to the metal so the metal will get hotter if you remove it. The temp in the engine bay will hardly change at all if you remove it.
The proposals of placing vents or ducts will change the engine bay temperature - both will reduce the temp by...
To me that rough idling sounds super cool. Being able to turn it on & off is magic. You can have some super fun at a petrol head rally confusing them if you just do it without alerting them. Confused petrolheads Yea.
My father kept a diary/journal during WW2. I uploaded bits of it here in the past. He was an Observer (=navigator, bomb aimer & photographer) in light bombers & in Madagascar at one point. His pilot was Ken Jones. His nick name was "Oubaas". This is an extract from that journal.
The Oubaas...
I know superglue to mount a mirror causes the windscreen to crack in most cases.
I have been to PG glass to have the mirror mount moved & they were willing to do it no problem. Did not happen because I wanted it moved to where the black dots on the windscreen are - cant mount it there. Terios...