BRTNCUSTOM

My fd feels like an oven. I have just recharged my ac, but at fullblast i hardly feel anything and if its on both feet and head i feel less. I need help. Is there any type of ac upgrades i can do. Maybe a larger blower or a different system i can install. Please somebody help.

alberto_mg

nope mine works very well. gets a bit too cold even.

DaleClark

iTrader: (55)

Your system isn't working well. The FD actually has EXCELLENT AC - you barely notice it's on when the car is running, and it will FREEZE you out of the car in no time flat.

If you converted to R134a from R12 refrigerant, it will never get as cold as it should.

I'd have a pro AC shop look at it.

Dale

FDjunkie

FYIW the '95 models came from the factory with R134a and their A/C lost a noticable amount of cooling capacity; maybe 20% compared to '93's.

Also, I've heard but never confirmed that the '95's front pulley on the eccentric shaft is slightly larger in diameter so that the water pump and other accessories spin a little faster (and use up more HP). If true this might be an attempt to help engine cooling and to make up for the A/C loss.

TAMAatWork

Your A/C should blow, not suck.

Hope this helps. :\

-Joseph

Tenacious

I wouldnt put r12 in it, get an ac shop to take a look at it, if you do end up putting r12 in it you may end up having to change a couple solenoids.

You could have a leak/be low or high on freon, both will make the compressor lock up. If its been done the conversion to r134a to r12, and it runs well, go ahead and do it, but dont breathe in too much r12, it'll give you a heart attack

(however I dont know **** about the FD ac system, I'm an HVAC tech for strictly refridgeration/franchises.

JConn2299

While it is true that R134a isn't as efficient a refrigerant as R12, changes were made in the 95 RX-7's A/C system to compensate. I own a '95 with a black interior
and it gets as cold as any R-12 car I've ever owned. I even have one of those probe thermometers you stick in the A/C vents and the air blowing out on a 90+ degree day is down to around 42 degrees which I've been told is what A/C systems should be putting out. Does it take longer to reach that temp than an R-12 car? Well, if it does, it's only a matter of seconds then....nothing I notice.

If the car is hot, you do need to get the car moving to get the A/C to work at its peak, but once moving, even if you then stop in a traffic jam, it continues to cool.

The first poster definitely has something wrong with his system. It could be a refrigerant leak or a malfunction of one of the major components.

I know this could be a dumb oversight and almost too basic to mention.......but is it possible the rotary temp dial is turned up in the red zone and not down in the blue? It's worth a quick double-check.

JConn2299

PS: If I remember correctly, the changes to the 95 A/C system were relatively minor and didn't affect the power output. The main one was that more fins were added to the condenser.

Scrapiron7

My A/C cools like mad on high, but any of the other settings it just kind of limps along. I figured it had to do with my Power FC since it never did it before I installed it.

DamonB

My a/c never sucks, it only blows

It certainly does sound like something in your system is not functioning properly.

DaleClark

iTrader: (55)

OK, I had to call this one out - LOTS of misinformation here.

'93s and '94s came originally with R12 refrigerant. They perform their best with R12, hands down. You don't "have to change a couple solenoids" to put in what came with the car. Hell, there are no solenoids in the AC system to begin with.

If you're low or high on Freon, it won't make the compressor "lock up". The pressure switch will not let the compressor engage if the refrigerant charge is too low or too high.

Don't breathe too much R12? If you're illegally venting R12, and stick your face right in the plume of refrigerant, sure you'll have problems. As an HVAC tech, you should know that you would NEVER vent R12 to the point where breathing it would be a health concern.

Dale

XSTransAm

if your fan isnt blowing hard you might have the problem i had.

check behind your glove box and make sure the fan box isnt hanging open. the clips on mine had weakend over the years and my box was hanging slightly open. This was letting all the air pressure from the fan blow out behind the glove box so barely anything was getting out the vents.

Mike

FDNewbie

iTrader: (10)

Dale, that rule doesn't exactly hold true, just like the 93 to 94 standard vs. reinforced OEM rims rule doesn't hold. Somewhere along the way in 94, some changes were made, and some FDs started getting the reinforced rims, and some FDs were being equipped w/ R-134. I've personally come across 94s w/ R134.

~Ramy

EDIT: I should prob say I've seen A 94 FD w/ R-134. Plus, IIRC, when I was searching on A/C earlier, a few people on the thread posted they had 94s w/ R-134, and others had 94s w/ R12.

rx713bt

iTrader: (4)

It's true. I've seen a 94' with R-134a

JConn2299

Are these 134a systems from the factory...installed in the car when it was built....or are they later conversions?

DaleClark

iTrader: (55)

I would think it's a conversion. I have a later '94, and it's R-12.

All the documentation I've seen shows that all '94 model year cars are R-12.

Dale

FDNewbie

iTrader: (10)

https://www.rx7club.com/showpost.php...3&postcount=10

https://www.rx7club.com/3rd-generation-specific-1993-2002-16/has-anyone-converted-93-c-94-134-c-316041/, specifically posts 4, 12 (incorrect), 17, 18,

https://www.rx7club.com/showthread.p...hreadid=209912, specifically posts # 21, 23, 25, 29, and 39

I'm sure there's more out there, but time is tight for me. Besides, I think this is enough

alberto_mg

fwiw, i'm using the later model stuff and mine blows ice cold.