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Arthur Kouparitsas
Tinkerer
a.c.t
soarer v8 limited

Posts: 37
Reg: 02-2011

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Friday, September 14, 2012 - 05:41 pm, by:  Arthur Kouparitsas (Arthur123) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Apparently the best sub statute for R12

Been reading up on the net about it and quite afew people are using it with great results

Any a/con techs on here that care to enlighten us??
Boris Siljanoski
Goo Roo
Western Australia
LS400 + Soarer.

Posts: 1717
Reg: 11-2007

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Friday, September 14, 2012 - 10:50 pm, by:  Boris Siljanoski (Z2tt) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

LPG might have many impurities that might not be good for the A/C System, plus without knowing the exact composition and % of all the different gasses in there, it may cause extra wear on the A/C Compressor.

Hydrocarbon Refrigerant blends on the other hand are what you can use as a replacement for R12 they are made for that specific use, I use it in my Soarer and Pulsar, works great. Compatible with both Mineral and PAG Oil.
Allan Langford
DieHard
Vic
UZZ31

Posts: 755
Reg: 05-2010

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Friday, September 14, 2012 - 11:08 pm, by:  Allan Langford (Allan) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

old farmers trick for many years on tractor a/c's

not so good in hot climates, also bad in accidents, hose failures, leaks inside the car - door light switch ignites it, whats left of you and car make nightly news...
Arthur Kouparitsas
Tinkerer
a.c.t
soarer v8 limited

Posts: 38
Reg: 02-2011

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Saturday, September 15, 2012 - 11:47 am, by:  Arthur Kouparitsas (Arthur123) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Dont think there's any more risk than riding in a taxi with a 90 litre bottle inches from your back
Allan Langford
DieHard
Vic
UZZ31

Posts: 757
Reg: 05-2010

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Saturday, September 15, 2012 - 12:50 pm, by:  Allan Langford (Allan) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)


Arthur Kouparitsas wrote on Saturday, September 15, 2012 - 11:47 am:

Dont think there's any more risk than riding in a taxi with a 90 litre bottle inches from your back




very simple reason, no gas hoses inside the car, any that are "inside" are enclosed and vented outside the car. (the big place donkey dick hose)

Matt Newman
DieHard
QLD
soarer tt

Posts: 649
Reg: 11-2007

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Saturday, September 15, 2012 - 03:15 pm, by:  Matt Newman (Soarersrock) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

my suggestion is that you bite the bullet and convert to r134a as if you ever get it serviced this will be the gas they use
John Stafford
TryHard
Qld.
Soarer UZZ31 GT-L V8 and a UZZ32 # 514

Posts: 369
Reg: 02-2010

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Saturday, September 22, 2012 - 08:48 am, by:  John Stafford (Johng12) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Not after next year apparently. After talking to a few agents that sell and recommend both HCs and R134a for different reasons, mainly due to the date of compressor manufacture, say that Hychill blend is probably the best thing for our older cars that were designed for R12. Read this interesting article:
http://www.airchill.net.au/auto-motive-air-conditioning-gases.html

Any comments welcomed as I am now fitting a new, in good working order used, compressor and have decided to go with Hychill.
Boris Siljanoski
Goo Roo
Western Australia
LS400 + Soarer.

Posts: 1724
Reg: 11-2007

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Saturday, September 22, 2012 - 08:26 pm, by:  Boris Siljanoski (Z2tt) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Especially in older cars like Soarers that have Serpentine flow Condensers, R134a is not going to perform the best.
Matt Newman
DieHard
QLD
soarer tt

Posts: 660
Reg: 11-2007

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Saturday, September 22, 2012 - 11:26 pm, by:  Matt Newman (Soarersrock) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

thanks for the info boys i know there was talk of replacing r134a but as far as i knew it was not going to happen as the gas they were going to use to replace it was carcinogenic and didn't meet arc's specification. so what other names does hychill trade under? and Boris do you know the volume of gas required for the ac on a tt?
Boris Siljanoski
Goo Roo
Western Australia
LS400 + Soarer.

Posts: 1725
Reg: 11-2007

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Sunday, September 23, 2012 - 12:34 am, by:  Boris Siljanoski (Z2tt) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

The amount of refrigerant required is the amount that the system cools best at.

This is roughly how much you need on a Soarer, but it's only a guide.

Volume - About 0.75L

Weight - R134a about 750g. Hydrocarbon (Hychill) about 250g

But every system is different, if you put a smaller or larger condenser in, different evaporator or receiver/drier in, the system is not standard, and may run better with a different amount of refrigerant, the accuracy of the meters or scales you use depending how you charge is also going to affect the amount of refrigerant that actually goes in.
Phillip George
TryHard
qld
soarer TT

Posts: 118
Reg: 12-2005

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Sunday, April 14, 2013 - 07:34 pm, by:  Phillip George (Phildo) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Sp34a is a direct replacement for R12, works with the oils and any R12 left in the system,

R134a is the replace for R12 as it was phased out, but you will have to flush the system and changes seals and oil,

LPG would be the ideal refrigerant for cars as its operating pressure are ideal, but highly explosive.
Boris Siljanoski
Goo Roo
Western Australia
LS400 + Soarer.

Posts: 1945
Reg: 11-2007

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Sunday, April 14, 2013 - 09:33 pm, by:  Boris Siljanoski (Z2tt) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Just an Update, 300G of Hychill Seems to be what works the best on TT's with all OEM/Original Components. V8's might require a little bit more for optimal performance.

SP34a works but is 98% R134a with added Butane to help as a oil propellant.

Old Seals are fine with R134a it only causes them to swell a little bit more but due to age it's a good idea to replace ones that show any signs of leaks.

Propane/Butane (Ingredients of Hychill) are not explosive in strict sense, meaning they don't cause doors to blast off or roofs to lift off or dismember bodies. Rather, they flash off. With small charges used in cars. There are propaganda people who use pictures/animations of cars exploding to bits and link them to Hydrocarbon refrigerants, this has never happened. If you have anywhere near the amount of Hychill leak into your car to cause a flammable mixture while driving, the rotten smell it has will irritate you too badly before it goes further.

LPG Depends entirely of that the LPG is composed of, for best performance the Propane/Butane mixture has to be at a certain level and kept low of impurities which LPG will have a lot of.

Hychill works great in Soarers and get's very cold even on very hot days.

For Example on most TT's, On about 35-40 Degree Days, Maximum Fan Speed, All Doors Open at a Standstill with the Engine running at 1500RPM and using standard clutch fan, the temp drop across the A/C System is 20-23 Degrees colder than ambient air.

Close all the doors and after a few minutes the Temperature at the vents gets very cold and so does the cabin.
Scott Vim
DieHard
Vic
Soarer (1uz) Chaser (1jz)

Posts: 766
Reg: 12-2010

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Tuesday, January 14, 2014 - 12:15 pm, by:  Scott Vim (1uz1jz) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

I'm trying to decide hychil or r134a. My chaser has a sticker on the bonnet r134a. Needs a regas to fix and the guy who is fixing it only has hychil. Is hychil an inferior product? Bad for the vvti models A/C system? I have heard hychil gets colder then r134a and although hychil is flammable so is r134a (just has a higher flash point). What do you guys recommend? Also my soarer needs regasing and has no a/c stickers on it so assuming its the old stuff.
Boris Siljanoski
Goo Roo
Western Australia
LS400 + Soarer.

Posts: 2137
Reg: 11-2007

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Wednesday, January 15, 2014 - 01:08 am, by:  Boris Siljanoski (Z2tt) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Hychill will work well and if anything is a superior product in terms of performance and efficiency. I don't know of many people with VVTI cars who use it but all A/C Systems work on the same principle, so based on all the excellent results people have with Soarers it should work good.

I believe you had some sort of issues with your car Scott and it wasn't getting very cold, if they are not solved no refrigerant will work well in your car.

R134a is for the most part non flammable, however the oil that it carries is flammable.

If your Soarer has the small R12 Charge ports it will be an R12 System, in which Hychill will be 100% Compatible with. Get the Drier changed before regas, and get it leak tested.
Mike Triggs
Goo Roo
Mid-Northern WA
3.0GT G-Pack

Posts: 1880
Reg: 07-2005

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Friday, April 11, 2014 - 05:29 pm, by:  Mike Triggs (Mikeandimah) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)


Boris Siljanoski wrote on Saturday, September 22, 2012 - 08:26 pm:

Not after next year apparently. After talking to a few agents that sell and recommend both HCs and R134a for different reasons, mainly due to the date of compressor manufacture, say that Hychill blend is probably the best thing for our older cars that were designed for R12. Read this interesting article:
http://www.airchill.net.au/auto-motive-air-conditioning-gases.html

Any comments welcomed as I am now fitting a new, in good working order used, compressor and have decided to go with Hychill.




It was interesting, apart from the part about "smelling LPG gas" when driving past a taxi rank. That's the smell of LPG exhaust one smells, not leaking LPG. It has a sweet (and not unpleasant) odour.

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