A/C after SR-swap

[primeral]

After doing some extensive reasearch on the topic, I believe I've come across a practical solution. If you want to have A/C in your SR-swapped 240, you have two main choices: use SR A/C compressor or use KA A/C compressor...

cons of using SR compressor

• existing system needs to be evacuated
• custom lines need to be fabricated
• system needs to be recharged with refrigerant
• replacement SR compressor not available domestically
• requires rewiring

cons of using KA compressor

• fitment KA compressor onto SR bracket isn't the best
• clutch/pulley of compressor does not line up with crank and idler pulley
• requires rewiring

pros of using KA compressor

• existing A/C system doesn't need to be touched
• A/C works like stock with all stock components and nothing more
• simplifies your SR swap

I've decided that using the KA compressor is the most practical method. GSRACER previously posted that wiring the A/C to work (one of the more common swaps, S13SR into S14) required connecting Yellow/Black to Black/Pink on the KA's F3 plug. That takes care of wiring, this only leaves physical fitment of the KA compressor onto the SR block...



My RWD SR20DE A/C bracket allows all 4 compressor bolts to be utilized, and all other's brackets only allow the use of 2 bolts. Either bracket, the pulley is still misaligned by a few mm, or the pully isn't angled perfectly.

GSRACER modified the KA compressor and is using a VG-compressor clutch/pulley. This is one solution. 2nd solution is One Ton Garage's aluminum adapter brackets which bolt onto the SR bracket and adapts it for use with the KA compressor. It's the cleanest adaptation that I've seen so far. 3rd solution is a replacement bracket. I want to get a machined aluminum part made off the OEM DE bracket:



I've been talking to a well known machining company and a well known vendor about getting a replacement aluminum bracket with the correct bolt offsets made for me and my car. For the benefit of others, it will incorporate additional bolt holes for all variations of KA compressors (S13 and S14 generations covered) to make it a universal bracket.

I'm posting this because I want to gauge interest in a bolt-on bracket to correctly adapt the existing KA compressor from both S13 and S14 to the SR20. Minimum run is 25 pieces, and the cost on the piece would be in the ballpark of $150 (roughly 1/2 the cost of using the SR compressor). It's going to be lightweight, bolt-on, and universal.

By the way, this isn't a commercial post. I'm getting one made regardless, and I was checking to see if anyone else wanted to benefit from my research and development. Also, getting 25 of them made will definitely be cheaper than getting a one-off. Anyone interested?

[NoStickers]

As far as I can remember I just bolted on the ka compressor using two of the bolts and making a little bracket for a third bolt, then spaced out one bolt just a tad and then it worked.

[mr. silvia]

i found out that you can use a 96 pathfinder compressor and all 4 bolts line up... it comes with a 5 rib pulley but it will work without any problems.. you also need to get the lines off of the pathfinder and get them splice with your old line... i hope this helps you guys... took me a while to find this

[primeral]

i found out that you can use a 96 pathfinder compressor and all 4 bolts line up... it comes with a 5 rib pulley but it will work without any problems.. you also need to get the lines off of the pathfinder and get them splice with your old line... i hope this helps you guys... took me a while to find this

Yeah, good idea. But purchasing a compressor brand new is money, and finding one in good working condition at a junkyard isn't always gauranteed. Splicing the lines is also research and development (and money). You don't think a $150 bracket to use the existing compressor and lines is worth it?

[f150intally]

i think it is worth it. plus it is weight reduction.