AC for SR

[SR PwrdVA]

The last S13 shell i bought was from up north and had no AC lines or components. For this build I definitely want AC as it get's pretty hot out here. So which AC parts fit the RWD SR. Any of the KA parts? Just trying to get an idea so that I won't have to order AC components from Japan everytime something goes bad. Thanx.

[420sx]

u can fit dohc compressor but u need to make a bracket i think. my friend has it i could ask him.

[SoSideways]

u can fit dohc compressor but u need to make a bracket i think. my friend has it i could ask him.

As long as it's on a redtop bracket, you can get the front 2 bolts to line up on the compressor.

If you have a black top bracket, then you'd only be able to get 1 bolt lined up and that's it.

[WILDACEX187]

will just 1 bolt linning up be a problem?

[240Shwag]

will just 1 bolt linning up be a problem?

Yes, dont think for a second vibrations wont loosen the bolt.

[WILDACEX187]

can you fab up a bracket or something/? if the ka compressor is used are new lines needed?

[FRpilot]

you can always fab up a bracket to use usdm ka sohc or dohc ac compressor, then you can use usdm ac lines! but if you use the sr compressor that comes with the motor, thn you gotta cut and weld the a/c lines where the fittigns attach to the motor with ka lines.

[nsn240]

edit. i was wrong.

[FRpilot]

my ac lines work fine... no mods needed :) i need the line coming from the firewall to the front left off of a 96 for it too work

are you saying the usdm 96 s14 ac lines work without cutting/welded and tap right into the sr compressor? basically bolt on?

[Muzzy]

fuk that shit...shut up HOs!! i've done it. wut u need is a G20 AC compressor(assuming u dont have the SR compressor and bracket and line)...the hard lines to the compressor, bracket. hard lines from your car. u need to cut and weld the lines from the G20 compressor to the KA lines because the fittings are different.
ummmm......lets see..so u dont have a condensor or that big silver bullet lookin thing on the passenger side near the battery?? if u dont..u need it. get that and the condensor...blah!! shit!!

bascically..if u want AC...go take all the AC stuff from a good 240 in the yard...all the lines...all of them!!! condensor, that bullet thing and the thing that is ibehind the firewall. then get the AC compressor off a G20 with bracket and the high and low pressure lines off the compressor. like i said above take the lines of the G20 and weld them to the KAs high and low pressure side.
u will need to convert all the fittings on the KA lines to R-134a fittings so u can put refrigerant in the system.

um...


but b4 u do all this....make your u have ac wiring on your harness and the controls are functioning on your climate control panel....and that little sensor thing in front of the condesor will be needed..it has a plug too......ssooooo..u may need to take a harness off the KA to obtain the plug if u dont already have it. u should...i did.
prolly gotta extend the compressor signal wire from the passenger side to the driverside..its only one wire...and its blue with a green line if im not mistaken.


hope u understand all of this..consult your FSM(if u have one) to identify the parts u need from the S13. i can take pics of the lines i was talkin about that have to be welded if like ...tomorrow... jus PM me.

[incubusfu]

i have the lines ran, where do i plug the little werid shaped plug in, does it need to be modded?

[Muzzy]

um....be more specific. a pic would be greatly appriciated. there are 3 plugs on the AC system..which one are u talkin about??

[SoSideways]

fuk that shit...shut up HOs!! i've done it. wut u need is a G20 AC compressor(assuming u dont have the SR compressor and bracket and line)...the hard lines to the compressor, bracket. hard lines from your car. u need to cut and weld the lines from the G20 compressor to the KA lines because the fittings are different.
ummmm......lets see..so u dont have a condensor or that big silver bullet lookin thing on the passenger side near the battery?? if u dont..u need it. get that and the condensor...blah!! shit!!

bascically..if u want AC...go take all the AC stuff from a good 240 in the yard...all the lines...all of them!!! condensor, that bullet thing and the thing that is ibehind the firewall. then get the AC compressor off a G20 with bracket and the high and low pressure lines off the compressor. like i said above take the lines of the G20 and weld them to the KAs high and low pressure side.
u will need to convert all the fittings on the KA lines to R-134a fittings so u can put refrigerant in the system.

um...


but b4 u do all this....make your u have ac wiring on your harness and the controls are functioning on your climate control panel....and that little sensor thing in front of the condesor will be needed..it has a plug too......ssooooo..u may need to take a harness off the KA to obtain the plug if u dont already have it. u should...i did.
prolly gotta extend the compressor signal wire from the passenger side to the driverside..its only one wire...and its blue with a green line if im not mistaken.


hope u understand all of this..consult your FSM(if u have one) to identify the parts u need from the S13. i can take pics of the lines i was talkin about that have to be welded if like ...tomorrow... jus PM me.

Or you can be smart and just not crack open the AC system at all when you did your swap, and just retained the KA-DE compressor (not 100% sure with the 95-98 240s, but 91-94 applies here) + lines and all that. Tie the compressor out of the way during your swap, and when your motor's in, just bolt the compressor back onto your SR motor with the RED TOP SR BRACKET using only the front 2 bolts and you're done.

Make your harness so that your AC works, and just use the compressor trigger plug that's on the chasis like before (essentially stock setup) and voila, AC.

And don't anyone on this board tell me that doesn't work, because I have this setup that I just told you about, and my AC blows cold as hell AC, everytime I turn it on.

[Muzzy]

k your set up may work...my set up pretains to a black top with a blacktop bracket. so that is what i did.

[SoSideways]

k your set up may work...my set up pretains to a black top with a blacktop bracket. so that is what i did.

I have a black top motor, which came with a black top bracket. I spent $30 and bought a red top bracket, and it was just 4 bolts, and I could reuse the KA's compressor. Still cheaper than your method, which I'm sure works just as well as my setup, but my setup is just cheaper because you're pretty much using everything that you already have, other than the bracket itself.

[WILDACEX187]

if u have a car with working a/c do u have to mess witht the wiring still if u want to use SOSIDEWAYS method?

[golfer17]

i thought at least one bolt would line up on my s14 sr with the ka compressor, and it doesnt. making a bracket for it to bolt to seems like a bad idea, so we are going to get lines made up for the sr compressor someday to work with it.

[MadScientist]

OK I read everything and I still cant justify exactly what engine your talking about. The S13 Red Top and Black Top are the exact same... only Black was made way longer...although the AC in the 96+ maybe different due to year... I have never had issues with AC from KA to S13 SR (SoSideways method).

Now the S14 SR is different... not sure about the AC because I have not dropped mine in yet. Calling an S14 SR a Black Top is very confusing especially when it was made the same years as the 96+ 180SX Kouki Black Top SR.

G20 idea sounds very very valid and simple especially the bracket issues. Obviously this set-up would be for the S13 SR.

Peace
Drew

[SoSideways]

What I was saying was the S13 black top motor (that came in the 94-98 180sx's)'s AC bracket does not work with the S13 KA24DE AC compressors, due to the fact that they switched to the new style compressor with the new freeon (name of the new freeon escapes me right now), and so the AC bracket is different slightly.

So slightly that, the KA compressor's front 2 bolts almost lined up perfectly. The bolts were offset maybe like 1mm or 2mm. Sucks.

So I bought a S13 red top AC bracket, bolted right onto my S13 black top block, and the KA compressor then bolted up to the red top bracket using the front 2 bolts.

Make more sense now? :)

[Muzzy]

well i actually used my blacktop compressor with my bracket. i actually only spent 20 bucks w the welding and 30 for R-134a. but...the G20 and SE-R compressor is the same. its just another option that he was. that was my set up. now he was 2 set ups to choose from. he may not have access to a redtop bracket. and by the looks of it he has no AC components. so he may end up running my set up

just puttin extra info out there



side note: he hasnt even responded yet

[MagnaDyne]

My S15 compressor bolted up the my S14 lines. For the most part. I unbolted one of my S15 AC lines up further, but over all I got the S15 compresser in there - fully bolted with no hacking or fabbing.

The only problem I ran into was the condenser. The KA left enough room to put it next to the fan shroud on the pass. side. Sense the SR's fan sits towards the passenger side, there was little to no room to the condenser, and the lines did not bolt up.

I could have simply moved the condenser down further and cut the KA lins and attach S15 fittings, but I never use the AC, so I eventually took it all out.

Just roll down the windows & drive faster. ;)

[SoSideways]

My S15 compressor bolted up the my S14 lines. For the most part. I unbolted one of my S15 AC lines up further, but over all I got the S15 compresser in there - fully bolted with no hacking or fabbing.

The only problem I ran into was the condenser. The KA left enough room to put it next to the fan shroud on the pass. side. Sense the SR's fan sits towards the passenger side, there was little to no room to the condenser, and the lines did not bolt up.

I could have simply moved the condenser down further and cut the KA lins and attach S15 fittings, but I never use the AC, so I eventually took it all out.

Just roll down the windows & drive faster. ;)

Till you're stuck in traffic in the summer and you're taking like an hour to move a mile. Yeah, that's really cool to not have AC then...

And when it rains, cause you know, it never rains in Florida. It's cool to have to wipe the condensation from the inside of the windshield, and get your interior all wet from the windows being open, and paying attention to the road all at the same time. So cool.

I'm not trying to sound like an ass, but just telling why I have AC.

I currently have a SR clutch fan shroud, but it doesn't fit my radiator that well. I even cut a hole out for the shroud to fit over the dryer thing, but it still doesn't fit that well. The top two taps never lined up, and neither did the bottom.

[golfer17]

btw, if anyone has any experience with making ac work with an s14 zenki sr in s14 kouki chassis, let me know. i still havent cracked my usdm lines yet from the ka compressor, and if there is a way where i can easily find an alternate bracket to work with it, or something easier than making these lines work with the sr compressor, please let me know.

[Muzzy]

crack them lines ho!!! its only R-134a not R-12 so its environmentaly friendly...correct??...i hope

or just have it evacuated.

[SoSideways]

crack them lines ho!!! its only R-134a not R-12 so its environmentaly friendly...correct??...i hope

or just have it evacuated.

I think R-134a is still toxic, just not as bad as R-12...

Cracking the AC line is still illegal and if you've cracked open an AC system in a garage with the door closed, you'll see how environmentally friendly R-134a is... Stuff burns nose and lungs.

[WILDACEX187]

ok so to recap if you want to use your ka a/c system unbolt the ka a/c stuff and move it to the side while u install the sr. get a redtop a/c bracket so that 2 of the 3 bolts bolt up. bolt everything back in and it'll be good. now wat about the wiring? if i want to use this method will i have to modify my wiring for the a/c if its working in my car right now?

[Muzzy]

...there is nothing to modify...just extend the AC signal wire from SR harness to the KA copmressor.

[iamwesley]

I got a Redtop AC bracket forsale! :)

[MagnaDyne]

...there is nothing to modify...just extend the AC signal wire from SR harness to the KA copmressor.

ditto

Read my post above. The compressor bolts up.
The condenser may need to be shoved around tho.