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How do you beat the heat?!?

Discussion in 'The Hokey Ass Message Board' started by Johnny1290, Jul 11, 2010.

  1. Johnny1290
    Joined: Apr 20, 2006
    Posts: 2,834


    I've insulated the hell out of my car. I added underdash A/C. It's still not enough. I wish I had one higher fan speed on the A/C and then I think it'd help.

    I was thinking of finding some 12v fans and hooking them up behind my dash maybe to get some airflow going.

    Do any of you all have some tricks besides the vent windows or air boxes?

    Actually I have an extra electric cooling fan or three I could mount somewhere. I saw an old Buick at the junkyard and it had a fan in a shroud underneath the driver's seat. That doesn't seem like a bad idea, and not much different than the air conditioned seats in the '09 Cadillac I rented!

    I've saw a couple small electric fans on the condensers of late models at the junkyard, that might work and keep the noise down to a dull roar! :)

    Anyone? Or am I the only wussy that can't take the heat? :rolleyes:;):cool:
  2. propwash
    Joined: Jul 25, 2005
    Posts: 3,858

    from Las Vegas

    fans will move air....cold or hot...if you're suffering from high temperatures, all a fan will do for you is evaporate your perspiration, which is what cooling feels like, but it's still shoving hot air around (a procedure with which I'm quite proficent). Only way to beat the heat is A/C....or, just enjoy driving with windows open and vents pointed inward. It is 105° here all week long. I take the roadsters out in the am only....getting to old to running around after the noon hour.

  3. Can you check the A/C to see if everything's working right? I had an A/C unit at my shop that came charged from the factory. We set it up and released the coolant but it just didn't seem like it was cooling right. Turns out it still had room for a couple more cans of refrigerant. We sucked it down and topped it back off and man... What a difference. Might be worth trying to add a couple more cans to the car as well.

    I run A/C in everything I build. When you live in Texas it's just not realistic to think you can enjoy a car when you live in a state where it's 100 + degree's 5-6 months out of the year.

    Traditional Nazi's will say they didn't have A/C in cars back in the day.

    They also didn't have all the traffic we have now and you couldn't get caught in a sea of tractor trailers and Hyundai's on an overpass at 3pm when it's 104 outside.

    Like it or not it ain't 1950 anymore...
  4. Francisco Plumbero
    Joined: May 6, 2010
    Posts: 2,531

    Francisco Plumbero
    from il.

    Thats why I went oldie old, with the cranky out window, open that sucker up wide, have to wear glasses for J. Law.

  5. fiftyv8
    Joined: Mar 11, 2007
    Posts: 5,208

    from CO & WA

    Take a 2nd look at your a/c unit, as it sounds like something is not doing its job right.
    Maybe the gas or the thermostat???
  6. aaggie
    Joined: Nov 21, 2009
    Posts: 2,531


    That fan under the seat of that old Buick was for the heater, that's where GM put them.
  7. Lone Star Mopar
    Joined: Nov 2, 2005
    Posts: 3,130

    Lone Star Mopar

  8. I am assuming that the car you are trying to cool is the '51 Ford mentioned in your profile. While bigger than a roadster, they are really not that big inside and an underdash A/C unit should more than adequately cool her down. I would definitely get the unit serviced before adding more "stuff" to the ride. I am a minimalist...
  9. Ratroddude
    Joined: May 15, 2009
    Posts: 1,027


    280 a/c , = 2 windows , and 80 miles an hour!!!!
  10. Deuce Roadster
    Joined: Sep 8, 2002
    Posts: 9,519

    Deuce Roadster
    Member Emeritus

    Get yourself a small thermometer like this


    and check and see how cool the air is comong out the vents.
    The Vintage Air unit in my 32 Ford 3W coupe blows 45 degrees :D
    My 2009 Silverado blows 39 degrees :)

    If yours is not blowing at least 60 ... you have a A/C issue.
    Also ... I have found ( that for me, anyway ) if the vents do not blow air onto your face and upper body ... the A/C seems ineffective.

    Other factors such these also affect the A/C

    1 ) insulation in the vehicle
    2 ) weatherstripping ( it keeps HOT air from getting in the vehicle )
    3 ) tint on the window glass
    4 ) the firewall/floor insulated to keep heat/noise out

    Last edited: Jul 11, 2010
  11. junkyardjeff
    Joined: Jul 23, 2005
    Posts: 8,005


    I had a under dash a/c in a 53 Olds that cooled it great,one satuday it was in the 62 Olds in a junkyard and by sunday it was in the 53. I liked riding around with the air on with the cracked windows as I had some strange looks from people at lights probably thinking I was nuts and how could thet POS have a/c,lost that effect when the car was finished and new windows.
  12. Johnny1290
    Joined: Apr 20, 2006
    Posts: 2,834


    I actually had it unprofessionally serviced by me, yesterday. I pulled a vacuum and recharged it, I'll put the gauges on today to see what they have to say.

    Shoot I can't find my thermometer but my face meter says its pretty darn cool. I think I just can't get it on my face/chest and that's what I'm fighting against.

    Maybe that's why underdash ac units went out of style?! ;-)

    I definitely need to get some upper body airflow! That's exactly what I'm trying to tackle. Oh and yes, its my 51 Ford, I forgot to mention. Thanks fellas! If anyone else has any idears I'd love to hear how you dealt with this.
  13. 53ash
    Joined: Sep 9, 2005
    Posts: 176

    from Plano, TX

    Maybe put you one of those little "trucker" fans, on the hump, pointing up at you. That might blow the cool air in your face. Good luck
  14. No joke... Those little things work great, especially in a larger car like a sedan or whatever. We had a wrecker when I was a kid that had factory air with a big block. That thing would still be warm with the air full blast. Bought one of those fans and hooked to a switch just to move some air around. Worked great and even had an oscillating feature.
  15. Francisco Plumbero
    Joined: May 6, 2010
    Posts: 2,531

    Francisco Plumbero
    from il.

    With that little thermo stuck in a vent you should be able to get down to 45 degrees on most systems in about ten minutes, or something is wrong.
  16. Did you insulate above the headliner?
  17. maniac
    Joined: Jul 11, 2005
    Posts: 539


    Weather stripping made a HUGE difference in my car, same as you I wasn't feeling it, once I sealed it up better it got much colder, I can get 40 degrees at the vent and it stays in the car.

    Close a dollar bill in the door and try to pull it out, if it comes right out you need better sealing, I made sure you had to really PULL the dollar bill.
  18. 29nash
    Joined: Nov 6, 2008
    Posts: 4,544

    from colorado

    Jhonny1290; If the line coming off the compressor should be HOT to the touch, and the fitting at the expansion valve frosty cold, . You should be able to get 40 degree air out of the vent right by the dash. If not, something is wrong; improper service, worn out compressor, clogged receiver/dryer, low airflow over condenser. Sorry I ain't closer, we'd have it figured out in a few minutes. If the guy serviceing it knows how to read the gauges, at the completion of the service procedure, he should be able to tell you if all that stuff is working. If he can't he's in the wrong vocation.
  19. I am looking at air for my 60 olds I cant aford the nice stuff so what results will i have with a newer 134 pump and hardware, while using an older under dask unit. our summers up here range from 95 to 115. thanks Bob
  20. 29nash
    Joined: Nov 6, 2008
    Posts: 4,544

    from colorado

    Those old underdash units work great. Use 134 in them, no problem.
    I'm running junk-yard donor components. The most expensive parts are the hoses, fabbed at local napa with fittings crimped on. My Evaporator is an 80something out of a jap car, the blower is VW, the receiver-dryer is generic,New-Vintage Air, the condenser was in a pile of aluminum at the salvage yard, I asked if it leaked could I bring it back, he said no!, but it only cost five bucks scrap price. The compressor is '02 Saturn. Total about $150, including freon134 and a set of Harbor Freight servicing gauges. Hook up each component to air pressure, leak test, and hook it all up. blows 36 degrees at the mouth of the evaporator.
  21. Super04duty
    Joined: Mar 11, 2010
    Posts: 58


    Get one of these....

    Buddy of mine had one... made summers feel better wearing a vest/uniform around all day.

    Get them here-->
  22. sixdogs
    Joined: Oct 11, 2007
    Posts: 635

    from C

    I've done a lot of too-warm cars over the years and recently completed a small glass coupe that had all the makings of an oven. I Insulated nearly 100% of every interior service carefully with that thin extreme insulating mat and the car is pleasant at 90 degrees even with no vent windows.
    My plan B if it was hot was to double insulate the floor and maybe the floor pan underneath. That's where the heat comes from.
    In the past, cowl vents have helped a lot. I think it's the warm floor and hot feet that makes things feel worse. I also wear leather tennis shoes so my feet can breathe.
    In 45 years of trying, the above has worked the best for me. Good luck.
  23. Snakeoyl Joe
    Joined: Mar 9, 2007
    Posts: 105

    Snakeoyl Joe

    Floorboard heat can be deflected from the interior of the vehicle by putting a stainless steel deflector plate above the mufflers with an air gap between it and the floorboard. It worked for me.
  24. Snakeoyl Joe
    Joined: Mar 9, 2007
    Posts: 105

    Snakeoyl Joe

    I remember those hot summers at Castle AFB you could fry an egg on top of the B52. No fun dripping fuel tanks in the summer.
  25. iamq
    Joined: Feb 26, 2009
    Posts: 250

    from Ma

    Keep taking cloths off till your cool..:eek:
  26. low-n-slo54
    Joined: Jul 25, 2009
    Posts: 1,920


    I want one of those Thermador coolers.
  27. Zombie Hot Rod
    Joined: Oct 22, 2006
    Posts: 2,453

    Zombie Hot Rod
    from New York

  28. The Gambler
    Joined: May 9, 2008
    Posts: 426

    The Gambler

    THATS what I do!
  29. 56sedandelivery
    Joined: Nov 21, 2006
    Posts: 6,695

    Member Emeritus

    Ha, Ha! Function over form. The "cop" in the pic, he'd be cooler without the "rug' also. But seriously, I hate/can't stand the heat either. I went to college in Texas, and bought a new Chevette for just that purpose, but it did'nt have A/C. The ventilation on that car was'nt too good, so I made some "air scoops" out of clothes dryer outlet "flaps" that I would place on the side windows, roll the window up, and the channel on top would help to hold the "scoop" in place. It worked, just not too well. So, I bought one of those "trucker fans" also. All it did was move the hot air around. So, dig deeper into your A/C problem, fix it right, and don't try other add-ons to compensate. Butch/56sedandelivery.

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