Custom AC Hoses (Page 1/19)
2002z28ssconv JUL 15, 10:24 PM
Now that my vacation is over and I have sourced the parts needed, I am ready to make a batch of custom AC lines for running the 3800 Series 2 or 3 AC compressor in the Fiero.

If you send your Fiero hoses and 3800 hoses there will be no core charge. If I have to furnish the Fiero or 3800 aluminum sections there will be a core charge to cover that cost.
If you just want basic hoses that connect the compressor to the rest of the Fiero AC system, the price will be $85 (plus applicable core) shipped in the continental USA.

Send me your aluminum sections. I'll crimp new rubber between them and send them back.

*** 9/27/15 Edit *** Changing the way I do this just a bit...
1) I am now pre-building these, that way when I get an order I can ship the same or next day. I have so many things going on right now that I can't stop everything to work on AC hoses at a moment's notice. Some people have had to wait for me to get a chance to build/send their hoses over the past year. Everyone was patient and nobody really complained but in order to send your set without delay, I'm prebuilding them now and just refunding the core charge when yours come in. Unless you specifically say so, you won't be getting back the exact cores you send me.

2) Regular PayPal fees are 2.9% + $0.30: On $175, they take out over $5.50. If you consider me to be "a friend" you can send it without a fee, otherwise these are the different payment amounts.

Set of hoses with switch port, including core charge for both ends: $180. (125+20+30+5)
(This is what you will pay if I haven't received your cores yet.)
Set of hoses with switch port, including core charge for Fiero end: $160. (125+30+5)
Set of hoses with switch port, including core charge for 3800 end: $150. (125+20+5)
Set of hoses with switch port, with no core charge: $129. (125+4)

Set of hoses without switch port, including core charge for both ends: $139. (85+20+30+4)
Set of hoses without switch port, including core charge for Fiero end: $119. (85+30+4)
Set of hoses without switch port, including core charge for 3800 end: $108. (85+20+3)
Set of hoses without switch port, with no core charge: $88. (85+3)

As always, checks, money orders and such are still an option.






This is the way the old school swaps were done. The AC will function but not at peak efficiency. Running the compressor under this condition can cause compressor failure. The pressure switch on the accumulator/dryer will turn the compressor off if the pressure builds too high or drops too low but this is a safety switch and the operating range of the switch is higher and lower than what the system is designed to work in on a daily basis. Does this method work? Yes. Is it the best way? No. Did people run with this setup for many years? Yes. Some people who swap 3800s into other peoples' cars still do it this way today.

Over the past few years people have started wiring in the 3800's pressure sensor from the high side of the system. It is wired to the 3800 PCM and the PCM turns the compressor on and off for peak efficiency.
I will also be offering custom hoses that will include a port incorporated into the High-side hose. The original pressure sensor screws onto the port and seals with an O-ring just like the 3800 did from the factory. The price for this version will be $125 (plus applicable core) shipped in the continental USA.

The core charge for the 3800 line will be $20.
The core charge for the 85-88 Fiero line will be $30.
8/25/14 Update -
The new fittings have finally arrived.

I can now supply these too.


If you have factory hoses that just need new rubber, I can do that for $85 shipped in the continental USA.
When I priced this out before buying the crimper, NAPA would have charged ~$120 just for 2 hoses and 4 crimps.

All prices include shipping to the continental USA. Other locations can contact me for personalized quote.

Basic Fiero 3800 AC hoses - $85
Enhanced Fiero 3800 AC hoses - $125
Core charge for Fiero AC hose end - $30
Core charge for 3800 AC hose end - $20
Refurbished Fiero hoses - $85

Please post or PM if you'd like a set and say which kind you want.


<<<DISCLAIMER>>> Before you work on your AC system, please do your research and educate yourself on how to finish the job in a safe manner, in a way that will last for the long term.

Replace your expansion valve inside the orifice tube. They're available for about a dollar at any auto parts store. Anyone who works on their AC without replacing the expansion valve is wasting time and money.

If you are changing from R-12 to R-134 or if you have any reason to believe that the system has been contaminated, the dryer accumulator should be replaced prior to recharging the system.

If you have any reason to believe that the system has been contaminated, flush all components that aren't being replaced.

By selling these hoses, I'm just supplying a piece of the puzzle. Anybody that modifies a car from factory configuration by putting in an engine from another car, already has to assume responsibility for when things don't work like they did from the factory. By offering the enhanced version people have the option to incorporate the 3800's sensor into the system and let the PCM control the compressor.

I'm also working on a design to add switching into the AC line by the frame rail that will serve as a cycling switch, giving those without the PCM wiring built into their harness, the ability to cycle the compressor at lower pressures.

[This message has been edited by 2002z28ssconv (edited 09-27-2015).]

rennoc442 JUL 15, 10:54 PM
This is the one area I was concerned about when doing the swap. Put me down for a set with the port for the sensor.
FieroGTguy JUL 15, 11:18 PM
I would be interested in the sensor version. Since I have headers, can I measure the length of hose needed? I'm guessing to would need a few more inches.

Thanks,
Greg

------------------

2002z28ssconv JUL 16, 06:32 AM

quote
Originally posted by FieroGTguy:

I would be interested in the sensor version. Since I have headers, can I measure the length of hose needed? I'm guessing to would need a few more inches.

Thanks,
Greg




Sure. These will be made on a jig so that the ends will be twisted in the correct positions. I can add a few inches in the middle, no problem.
TbirdMarc JUL 16, 04:33 PM
I would be interested in the pressure switch version as well. It appears the line and hose sizes are different on the fiero and 3800 comp sides. What size hose and ferrules makes it all fit together?
2002z28ssconv JUL 16, 06:00 PM
They're the same size.


Update - I did get the price quote back today but they will have to custom make the section to attach the sensor. They offered two options. One is the same price as the supplier I found earlier. The other option is $5 cheaper. I will get a sample of each and make a decision.

As of right now, I am only making the simple version until I get the parts for the enhanced version. That will hopefully be next week.
TbirdMarc JUL 16, 07:44 PM

quote
Originally posted by 2002z28ssconv:

They're the same size.


Update - I did get the price quote back today but they will have to custom make the section to attach the sensor. They offered two options. One is the same price as the supplier I found earlier. The other option is $5 cheaper. I will get a sample of each and make a decision.

As of right now, I am only making the simple version until I get the parts for the enhanced version. That will hopefully be next week.



Are the hose sizes #8 and #10 or #8 and #12 I was trying to figure that out.
bjc 350 JUL 16, 11:51 PM
I'm in need of a set as well. My car has West Coast Fiero headers and I once read somewhere that there could be a conflict between the hoses and the headers. Therefore, I'm not sure what length to use. Anyone have a clue, or the best way to measure for the correct length?
2002z28ssconv JUL 17, 06:40 AM

quote
Originally posted by bjc 350:

I'm in need of a set as well. My car has West Coast Fiero headers and I once read somewhere that there could be a conflict between the hoses and the headers. Therefore, I'm not sure what length to use. Anyone have a clue, or the best way to measure for the correct length?



If someone can send me a picture from under the car, I should be able to route them in a way that will miss the headers. I can also add some heat shielding material to them too. I found a supplier for that too when I was looking for the fittings.
bjc 350 JUL 17, 11:27 AM
I will try to get some pictures later today. hopefully I can get the car up high enough to get a decent picture. No lift!