Hi everyone. I have a 2001 Disco. I've been looking at the throttlebody recently, for no other reason then to try and figure out why LR heats up the air. Cold air is denser and denser air gives more power. Is there a particular reason the air is heated? What if I looped the coolant back without passing through the throttle body? Has anyone done this? Just curious. I'm sure there's a perfectly good answer.

Thanks,
Jamie

 

I am totally on board with your logic. I learned intech schoolthat engines run best when the air is cold and moist. It only makes sense as you described. I still don't understand this an await an explanation as well.There has to be some funny qwerk with these old buick engines that may benefit from the warm air. Mystery to me...

 

Maybe it is to keep the air the same temp no matter what so the computer doesn't have to adjust for it...

I always wondered why on diesels they didn't have a cut out for the intercooler on the turbo for cold weather. I know the computer would have to compensate, and was told that was why. They just didn't want to over-engineer it.

just my guess...

 

Well, I had 2 thoughts on this:
1. Probably beneficial when the carbeurator was used to warm the intake air, not sure of the benefit now with a fuel injected system.
2. One more ridiculous and unnecessaryarea for our engines to leak

 

I'm in on that bet.

 

On my VW TDI diesel the air is super heated in the turbo before the intercooler.
The intercooler brings the air from turbo temps 350 to 1200 degrees to air temps and it helps
when you get a bigger intercooler.

The Land Rover built the trucks to go from -50 to +140, or more.
The transmission cooler is a good example most just go to the radiator but ours goes to the radiator
and then the exterior cooler.

I will never go to -50 I bet that no ice would built up on the thottle body.

 

The heated air helps the engine warm up quicker hence better emmisions, and yes, I looped my two lines togethera year ago and it started just fine in our cold Colorado mornibgs.
Mike