Thread: TD5 Airconditioner efficiency.

Looks nicely made. We will see if it helps.

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.

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.

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.20260127_170715.jpg

I wish!

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.

Originally Posted by Captain_Rightfoot

I just want to record this for my future reference.

Trip to pick up camper. Highway and light urban. Middle fan.

Morning. 7.5 deg to 9 Deg.

Afternoon (hot 31, 32). 9.5-11 Deg. Slower speeds- higher temp.

I tried high fan but then the temps went up to 13.

Ok so finally I have an update. Car came back on Friday after two months of languising at the auto electrician/AC place.

So I haven't really done other anything other than short drives around town. It was warm yesterday (about 30). The AC typically seems to cycle on and off and run at about 5.5-6.5 when running. Cruicially this doesn't seem to change even if you run the fan speed on high which is very different. In the past if you ran the fan high you got more air but it was massively warmer.

At idle it does drift up to 8 or so after a couple of lights. Again a big improvement. Unlike the system in the past that took 10 or 15 minutes to get the temps down it now has the temp onto 5 within a minute or two.

The temps are now mostly below 30. I'm taking it away at easter hopefully. Will report.