R32 - Have Your Overheat Fan Turn On With Your A/c

[Zardos]

Has anyone got this working on a R32 GTR, if so is it the same as cudes and if not how did they get it to work, i too would like to do this.

Great work by the way cudes

[West]

are you guys sure the r33 thermo fan doesnt switch on with aircon? i thought it did. not constantly, but as needed.

Yes you are right, even R32 but i think we'd like to have the fan turn on a bit earlier than what set (factory temp set at 94degree i believe) by Nissan just to be on the secure side.

[Zardos]

Cubes is that SINGLE DIODE a 1N4004.

[Cubes]

I really couldn't tell you.

I simply bought a dioide that was as large as I could get from jaycar. From memory it was rated to 300v.

[Cubes]

I found this pic on the internet.

It does look identical so I'd say yes.. Its the 1N4004

[Zardos]

cool thanks cubes

[Zardos]

I finally got off my ass and did it.

Cubes your instructions worked to a tee, no difference between r32 gt-t and gtr.

cheers

[Cubes]

Good to hear.

Cheers for the bump; I've replaced the pics through out the tutorial that were lost during the recent forum software update.

[Mr Cali]

Thanks for the how to Cubes, worked a trick. But I think its a little too late for my compressor, I think the summer period has over cooked it. Oh well I have a replacement one here.

[Cubes]

Thanks for the how to Cubes, worked a trick. But I think its a little too late for my compressor, I think the summer period has over cooked it. Oh well I have a replacement one here.

What gas are you running? Our compressors are not designed to deal with the high pressures experienced with R134a gas.

Find an aircon specialist that is licensed to deal with R12a; a MUCH better option.

I've had both gases in mine and the R12a is much better. I can no longer hear the a/c compressor roar, I can no longer feel when it clicks in and out and the power it sucks out of the motor is hardly noticable UNLIKE R134a.

R12a is a more efficient and environ friendly aircon gas than R134a.

Don't confuse R12a with R12. They are two different gases.

[Mr Cali]

yeh i converted it to R134a gas and ever since then have been having probs. 2 weeks after I had it done it built up too much pressure and stopped working. They had to release some gas and it worked again for a few months then the compressor went. I'll have to get the compressor replaced and then fill it with the r12a then.

[Rekin]

What gas are you running? Our compressors are not designed to deal with the high pressures experienced with R134a gas.

Find an aircon specialist that is licensed to deal with R12a; a MUCH better option.

I've had both gases in mine and the R12a is much better. I can no longer hear the a/c compressor roar, I can no longer feel when it clicks in and out and the power it sucks out of the motor is hardly noticable UNLIKE R134a.

R12a is a more efficient and environ friendly aircon gas than R134a.

Don't confuse R12a with R12. They are two different gases.

haha ive converted mine to R134a.

The power drain is huge, wouldnt dare turn it on whilst idling at lights When coming to a stop, i always put it into neutral and rev a bit so it doesnt stall it self

[Cubes]

haha ive converted mine to R134a.

The power drain is huge, wouldnt dare turn it on whilst idling at lights When coming to a stop, i always put it into neutral and rev a bit so it doesnt stall it self

lol mine wasn't quite that bad but it made the car feel very very dull.

[adoboy666]

i did this and it worked a treat,

also added another wire connecting it to the black side of the diode then ran the wire into my cabin with a switch that connects to ground, now i can turn it on via the switch or via the air con

Say ur radiator temp has rose a bit, just flip the switch and instantly the overheat fan will kick in and aid in cooling your radiator.

[Munkyb0y]

has anyone tried this on an R33?

I'm about to replace my aircon fan, as mine is seized, and probably has been for some time. although the aircon is still quite good

now to work out how to get the fan out without removing the fmic . i tried, but it doesnt look possible, so i unplugged it for the time being.

Edited December 30, 2007 by Munkyb0y

[Rekin]

as hot weather has come around in victoria, this requires a bump up to the top

took my car to get an AC checkup and they told me to wire in the radiator fan startup.

One question, after turning off the AC is the rad fan still on? or does the wire+diode signal the rad fan to turn off?

[s1.533]

yeah, i was just about to ask has anyone done this on a r33 s2.

i can only see rad fan relay but not the over heating one

[benro2]

Yes, I would like to do this mod on my S2 R33 for this summer! Does anyone know if the fuse layout is the same as the R32's?

Also, does it actually make much difference to the air temps (inside the car) when you've just started the car and it's ultra hot outside, but you're sitting still? I'm finding that for the first few mins it never really cools down much inside if it's >35C outside and I'm not doing >40-50km/h. On the flip side, once I'm doing >40km/h would I really need this 2nd fan going whenever the A/C is on?

Oh, and what happens if the car reaches 91C but the A/C is off? Does the overheat fan stay off? Or, in other words, is the overheat fan now solely controlled by the A/C?

Edited January 28, 2010 by benro2

[08yannch]

will be trying this mod its got 2 be 1 of the cheapest 1s out and it will give me a chance to check if my thermal fan works (i dont trust the 1 the panel beater fitted)

[Marko R1]

took my car to get an AC checkup and they told me to wire in the radiator fan startup.

likewise - when i had my regas done the mechanic also advised running the thermo fan would knock off approx 5degrees from my current internal vent temp which is @ 11degrees

this is a fantastic mod, i'll do this today