TD5 Airconditioner efficiency.

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Originally Posted by discorevy

I don't live in Brisbane ( though I was there in Oct briefly to help a mate sail his boat to Sydney, it's now in Albany ) but I thought the seasons were the same as the rest of Australia, which has been Summer in the southern half since the start of December.

Is mid 30's "crazy hot" for Brisbane late December?

Not meaning to have a crack, but also, I don't think AC is super important for the car, maybe the driver

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but I thought the seasons were the same as the rest of Australia, which has been Summer in the southern half since the start of December.

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Sorry senior moment there. [bigsmile]

It's not unusal for Brisbane to have a hot day or a hot day or two here and there. But now we seem to have hot week after hot week. In my lifetime, serious floods affecting Brisbane were 1974, 2011, 2022, 2025. Anyway that's probably another thread.

The AC has been marginal in this car since it was new. I'm sure the system has degraded at least somewhat since new which is probably not helping things.

Yes, you are right AC is more for the driver than the car. I help with a desert race in late Sept/Oct each year. It's not uncommon for there to be a week (or two) of 40 degre days. When it's 40 outside and 35 inside the car that does wear on me for sure. My friends in their toyots sitting inside at 22 are definitely less affected by the heat. :o This year we found we were probably better to have the ac on and the windows down because the ac blowing air at you that's mid teens is not overly helpful.

Looks nicely made. We will see if it helps. [thumbsupbig]

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Putting this in for later for me.

Drove back from the coast. It was hot. Forecast 38 but it wasn't quite that bad. Humid as well. On the trip back from the coast mid morning the AC was blowing 8 to start with and 9 as it warmed up on medium fan speed. When I got to brisvegas and in the traffic was in the teens. The temperature on the centre console box was 30.

It's new condenser week Thursday and Friday. I'm trying to hard to manage my expectations. [bigwhistle]

I don't expect it's going to make the AC a Toyota. It will always be a small AC in a big white box - but if I can get it to consistently blow more 4 or 5 and hold that temp on high fan on a hot day I think that will be good as i can hope for.

A balmy 45 here today.

AC is working pretty well, this is the vent air temp with fan on 2 and at cruising speed.
https://uploads.tapatalk-cdn.com/202...e0d69bb541.jpg

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Originally Posted by shack

A balmy 45 here today.

AC is working pretty well, this is the vent air temp with fan on 2 and at cruising speed.Attachment 195625

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I wish! [bawl]

Do you think it's adequate for the car when it's working like that?

How on earth has yours got so much more cooling capacity? :(

I don't know, but it's probably a combination of the following:


1. It's using hychill not R134a. It's more efficient.

2. I've got a parallel flow condenser.

3. I've changed engine mapping to run the electric fan sooner.

4. The little ECU that controls all AC functions has failed on the the thermostat control side (I think a lot of them have) so I've bypassed the thermostat whilst leaving the condenser fan control and trinary switch operation in place.

5. I've bumped idle speed when the AC is on to provide better cooling when stationary.

6. I've done considerable heat insulation on the vehicle to reduce heat ingression, as the evaporator will only Cool air by a certain amount below the ambient temp in the car.

I've still got exhaust heat shields to fit and several other mods when I can get too it.

Significant heat comes into the cab from the exhaust as there is NO shielding at all from factory.

As to whether it's acceptable... Mine is a twin cab so less space to cool, I went for a 15 minute drive today, 45°outside with the car parked in it for hours before hand, internal temp was 50° but had dropped to 28° from memory when I stopped.

It's not bad in the front but the back might make you a bit testy.

Bravo!

I will ask for hychill when they do the work.

The rest of those items sound like a priject. I 100% agree with the heatsoak. The temps coming up from the floor are insane.

It's Hychill -30 in mine, there's a few different ones but that's the correct one for this job.