Quote:
Originally Posted by Nditiz1
I welcome anyone with the Griffiths or Vintage air to post up detailed tests/vids as I have. Post items like type of car, location, ambient temps, humidity, cabin temps, vent temps. We just hit Fall so I'm not sure other locations will be having real hot days, but I don't live in the southern states.
I can only state what my tests have proven. Even with this system I'm still waiting to hear from others that have multiple condensers and are getting lower vent temps then most have been able to achieve. One example is Targa80(Pat). He has 2 condensers and while he uses the front mounted stock one I have to assume it is comparable. His numbers are comparable to mine so are we both wrong?
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No vids, but here is some info that I've posted about my system in the past (I used to participate a lot in the a/c threads but haven't in a couple years . . .
I live in Ft. Worth TexASS, so much of the year is burning hot with gross humidity and there is not a single month that I do not use the a/c some of the time.
1987 Turbo
Stock Nippondenso compressor
Stock turbo tail condenser (half coverage of tea tray tail) to which I added a 10", straight blade fan (used to have a curved blade unit but switched to a straight blade when the curved one starting going bad).
Stock nose condenser.
Fairly large condenser with 10" fan in the left rear quarter, forward of the wheel
Serpentine evaporator
A blower motor made for GM trucks and SUVs from the early 2000s (totally custom job by me that involved a lot of modifications to the evaporator box lid, motor shaft, etc.)
Smuggler's box packed tight with insulation and the inside and outside of the lid also insulated.
All possible air inlet points insulated/sealed to the best of my ability (including making a block-off plate for the fresh air inlet at the base of the windscreen).
Dark as legal window tint.
r134a refrigerant filled via the vent temps and pressures method - about a total of 4 hours evacuation time prior to filling.
Performance = 28 degree vent temps in 96+ ambient with high humidity, with engine speed at idle (about 1K RPM) and blower speed on max (aka - shockingly cold). Incredible water output from the evaporator drain. After a decent amount of driving time (around 15-20 mins or so) the headliner is upper 50s and the empty passenger seat is mid 40s. Super quick cooldown following baking in the sun, etc. When ambient temps are cooler (mid 80s and below) the system barely has to run in order to super chill the interior, including blower speed on a lower level that doesn't make as much noise.
When the system was completely stock, except for a conversion to r134a, the best it could do was upper 50s vent temps, which for me personally, is totally inadequate in upper 90s ambient, regardless of blower volume.