Thread: New radiator needed

Originally Posted by sierrafery

Just be aware that the gauge's position is a bad joke made by LR...it goes to the middle at 70*C and stays there untill 119*C then at 120 goes to the red so it's technically possible to drive it at 115*C for long without knowing it and that would "tenderise" the engine on a long run.... better fit an additional gauge to see the real coolant temp all the time.

I had a so called "performance" alluminium rad myself(not Allisport) but after about one year i gave it to a friend who has a competition defender and fitted standard Nissens to mine cos i didnt like how the coolant temp behaved with it... the ECT fluctuated too often between 75 and 100 depending on the throttle and engine load(used to tow a boat from time to time) so IMO it went too cool on light throttle which increased the EGT(i have both ECT and EGT gauges) and went up too high quite fast when the engine was forced.... IMO it had too much thermal inertia and so many ECT fluctuations are not good for the fuelling, with the Nissens once it gets to 90 it stays around that value with small fluctuations and i like that more.

Do you feel that increased cooling capacity changed coolant temps faster than what the thermostat could respond?

Originally Posted by Slunnie

Do you feel that increased cooling capacity changed coolant temps faster than what the thermostat could respond?

Good question... never thought that way, i just described my own experience without thinking why it happened

It is a good question. I would have thought that the larger capacity would have led to more temp stability, once op temp was reached, which would take longer.

Originally Posted by Tins

It is a good question. I would have thought that the larger capacity would have led to more temp stability, once op temp was reached, which would take longer.

Unfortunately(for me) i didnt think at all just went after the advertisement and believed some good reviews without additional research... i discovered what i revealed cos both my ECT and EGT gauges were already fitted .