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Blanc



Member Since: 14 Jul 2016
Location: Suffolk
Posts: 29

Thanks Greeni. Very interesting.

After swapping from a cold running tdi I'm paranoid about heat. Everything to do with the V8 is so hot. It seems perfectly able to regulate itself but seems to radiate from everywhere.

The heater is very good though!

D.

Post #643505 12th Aug 2017 7:51pm
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GREENI



Member Since: 22 Aug 2010
Location: staffs
Posts: 7359

United Kingdom 1985 Defender 90 V8 Petrol ST Auto Keswick Green

It is a massive difference than running a diesel!
I run thermo-tech on the manifolds to help, but I've found a hot spot on the bonnet, though I'm thinking of running a discreet vent to allow it to escape, I'm trying avoid a big reverse air scoop.

A friend runs a Subaru rally car and they put big holes on the back of the scoop and that helped massively. Scumbag.

Post #643515 12th Aug 2017 8:47pm
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V8GPC



Member Since: 18 Jul 2016
Location: Manchester
Posts: 99

United Kingdom 

I run a Defender 50th with the 4.0L GEMS V8 and don't have any extra cooling holes or fancy exhaust wrap; although the whole lot gets warm, the temp gauge stays where it should and the engine doesn't overheat.

It does have the proper radiator; with oil cooler. (which is bloody expensive to replace compared to others); so is either rare or has some extra cooling...

The 50th has aircon with an additional radiator for cooling the gas and twin electric fans, these are only for air con purposes and controlled by the ECU. If excessive engine temp the air con stops working, so I guess LR looked into all the cooling.

Standard viscous fan that comes in/out of locked when at normal temp, again suggests all is ok

The 50th doesn't have side vents in the wings either.

The only thing I've done is change the drivers top wing vent from solid to a grill, more for aesthetics has its a nice aluminium and stainless grill rather than plastic, so it should let some warm air out.

Extra holes will always help; but not a necessity; a radiator in good condition and a working fan should be sufficient.

Post #643602 13th Aug 2017 12:32pm
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Blanc



Member Since: 14 Jul 2016
Location: Suffolk
Posts: 29

Mine has never looked like overheating. It just kicks out heat like nothing else I've owned.

Post #643717 13th Aug 2017 9:59pm
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GREENI



Member Since: 22 Aug 2010
Location: staffs
Posts: 7359

United Kingdom 1985 Defender 90 V8 Petrol ST Auto Keswick Green

Running temperature is spot on, everything is new so no worries there. Scumbag.

Post #643727 13th Aug 2017 10:17pm
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