modelAtony
Senior Member
MR TUBE I read somewhere that the unit pulls about 3 hp, when kicking in.
A/C for model A's
- Thread starter msross
- Start date
MR TUBE I read somewhere that the unit pulls about 3 hp, when kicking in.
MrTube
Well-known member
What Jason said!
Jason and CarlG,
My two modern cars which have a GM 1.4 liter turbo in them produce 148ft-lb at 1850rpm. This is clearly A LOT more torque than a stock model A engine can produce at any rpm as that is already 52hp @ 1850rpm. Torque is not an issue.
modelAtony,
Thank you for your response. I have a feeling I was told this before and simply forgot. 3hp doesn't seem very taxing at all even on the model A. Again, as I said previously even if it did slow the "A" down I would rather be comfortable than fast.
BTW that is a beautiful looking kit!
CarlG
Well-known member
My goodness, it gets up to 75 or 80 every now and again.AC.......? In Alaska?
Actually, I wanted the heater as much as anything else.
tbirdtbird
BANNED
haha there are many myths out there...the secret is the impressive engineering of a modern Sanden compressor.....the motor hardly notices....certainly nothing like 3 HP
just about everyone here in TX has one of these, they work great, cool great...
i have ridden in enough cars of other ppl with this setup that my own is on order right now; in fact i already started the mounting system for the condenser, which always goes behind the rear end, another trick to keep the heat away from the motor
just about everyone here in TX has one of these, they work great, cool great...
i have ridden in enough cars of other ppl with this setup that my own is on order right now; in fact i already started the mounting system for the condenser, which always goes behind the rear end, another trick to keep the heat away from the motor
Tom Wesenberg
Well-known member
On my modern cars I can't even measure the difference if fuel mileage when on a trip, whether I use the A/C or not. I need a new compressor for my 99 Olds 88 now, though, so I can't use it, but still get the same 32 MPG on the highway.
With the heat and humidity we had last week I was ready to put A/C in my 28 Phaeton, even with no side curtains.
With the heat and humidity we had last week I was ready to put A/C in my 28 Phaeton, even with no side curtains.
MrTube
Well-known member
I looked up the smallest piston type Sanden compressor made and it consumes just over 2KW at full output. This comes to just under 3 horsepower.
While some pumps are more efficient than others, there is no free ride and the more BTU's you want to move, the more power you will use doing it.
MrTube
Well-known member
On my modern cars I can't even measure the difference if fuel mileage when on a trip, whether I use the A/C or not. I need a new compressor for my 99 Olds 88 now, though, so I can't use it, but still get the same 32 MPG on the highway.
With the heat and humidity we had last week I was ready to put A/C in my 28 Phaeton, even with no side curtains.
Tom,
I've seen as high as 48MPG in my 2012 Chevy Sonic with A/C on for an entire trip to and from work (45 miles each way mainly highway). That car as well as our Cruze has me sold on modern turbocharged engines.
My typical mileage is 40-41MPG over many many tanks of gas but 48MPG was my best but I really have to try for that. 40MPG comes without trying.
Sorry for getting off topic but I was concerned the compressed used was a larger one that consumed say 6-8HP. Obviously that is not the case.
I think Ken is selling a beautiful kit that fits in the "A" seamlessly.
Jordan
Well-known member
Putting it in the phaeton???
sphanna
Well-known member
I know this is not a perfect check, but I have heard that these A/C units only use about 3 hp. I know that at 2200 RPM, the engine is to put out 40 HP. I ran my car at 2200 RPM and checked the RPM drop when the A/C clutch engaged. I know that RPM is very closely related to HP. Within reasonably close parameters, the percentage change in RPM is also the Percentage change in HP. When driving at 2200 RPM the drop when the A/C engaged was about 175 RPM. That works out to about 3 HP. So, I am convinced. In normal driving you cannot tell when the compressor kicks in. Only at very slow rpm to you notice it.
tbirdtbird
BANNED
You betcha, Jordan....
heck i am putting one of Ken's systems in all my cars !!! One by one....
heck i am putting one of Ken's systems in all my cars !!! One by one....
kenparker
Well-known member
I have A/C in two of my A's. Both have tachometers on them. At any engine speed, whether 550 idle speed or chucking on the highway at 2000 rpm, when the A/C is turned on the tach does not change. One car has the Sanden 508 the other has a Sanden knockoff. One car has a Snyder 6.1 the other has a Brumfield 5.9. HP pull on hte engine is not an issue.