200 Series Landcruiser intercooler air flow

Check the Lcool.org site. If there's nothing there, I doubt the problem exists.

Regards

My current LC 200 Series Diesel with ARB bull bar has travelled 80,000 k,s [including a lot of towing large van] and no issues with overheating. I also had Toyota steel bullbar on previous 200 series which travelled 130,000 k's including 15,000k's towing 3.5 tonne van in hot top end temps.

This does not mean there is not some retriction to airflow, rather it has just not caused me any apparent engine temp issues.

Bob

Can't recall seeing an article, but having had a good look at my engine bay, anything stuck to the front of the car is well likely to interfere with the airflow to the intercooler. As I see it, the intercooler has a huge area (compared to some), in order to make up for the modest airflow; if you have a look at the route the air needs to take from the upper front grill through to the aluminium fins, that flow needs all the help it can get ! It seems that a through-scoop on top of the bonnet would improve the situation massively ! I don't have a bullbar on my VX, but if I was going that way, I'd note the commonly seen values on the various gauges and then compare post the install (outside temp - incoming air temp - water temp - engine temp etc.).

I had a closer look at the Grill /air intake area on my 2013 VX. It is below the lower part of the top cross bar of the Bull bar.There are two large air induction rams/venturi's that are behind the grill placed about a foot apart and clearly are to channel the air to the intercooler. Having now had a good look, I doubt my bull bar placement/position relative to grill, would cause an issue. If operating in extreme heat with heavy loads, then any add on that can keep engine cooler including for example a transmission oil cooler, may assist.
Bob

I'm amazed that modern vehicles don't have more overheating issues when you consider what is sitting in the airflow.
Apart from the fact that a vehicle like the 200 Land Cruiser, has an auto transmission cooler dumping heat into the cooling system, you also have taking priority, in the airflow, the said intercooler, an air con condenser and then the poor old engine radiator. Then on top of all that, with a 200 like my young bloke has, out front there sits a 'roo bar, a pair of spotties that could light up the WACA, and a winch.
Admittedly his Jayco pop top expander van is pretty light at about 1800 kg but he works in the Pilbara with it's 40 + degree ambients at this time of year.

Cheers
Pop

With the amount of bugs that I have to remove from my intercooler after every country trip I do not think the bull bar and lights stop too much air flow.

I find it unlikely there would be any difference that you could feel in this case.
negligible in my opinion.

A restriction of airflow through the intercooler probably won't heat the engine, but it will/may increase intake airtemp which means LESS oxygen in the cylinder and a hotter burn of pressured aircharge and fuel. Less oxygen in the cylinders will reduce power. SimiIar effect to high altitude where there is less air for the turbo to compress.

I think that is what the poster is meaning.

Not sure what relevance all the other items mentioned have on the issue posted.

Just talking about the airflow a couple of days ago with my good mate Boof from Bairnsdale (exploroz member),he has a 200 series. He is thinking about a bonnet scoop (like my 79 series) to improve the airflow to the inter cooler.

Cheers, Sparra

Not owning a 200 ser Im not sure if this idea will help.

In the heat when towing a van my 100ser had a very high under bonnet temp. I removed the fexible inner guard panels and the temp dropped somewhat.

Sometimes its not how much air you can get in but how much heat you can get out and providing extra exit points may help.

Im not sure how a bonnet scoop will help as it will bring air in BEHIND the intercooler wont it

I don't have a 200 series but I have just watched a Video on Berrima Deisels Face Book page on this exact topic concerning a 200 Toyota , apparently it can be a issue .

Perhaps the person pushing this theory should have a look at where the air actually enters on a 200 series. The vents are 80mm below the bottom of the 50mm top tube, to have any detrimental effect the top tube must be massive !
Ken