SuperTigre 4500 conversion
11-04-2011 | 04:05 PM
#52
RE: SuperTigre 4500 conversion
ORIGINAL: Hobbsy
If I had the money I'd buy them both.
If I had the money I'd buy them both.
11-04-2011 | 06:03 PM
#53
RE: SuperTigre 4500 conversion
Before I answer that let me flip mine end for end and see, that would put the long cooling fins in the front but that simply wouldn't matter that much. You would also have to rotate the rear casting one way or the other to time for reverse operations.
11-05-2011 | 02:16 PM
#54
RE: SuperTigre 4500 conversion
ORIGINAL: Hobbsy
Before I answer that let me flip mine end for end and see, that would put the long cooling fins in the front but that simply wouldn't matter that much. You would also have to rotate the rear casting one way or the other to time for reverse operations.
Before I answer that let me flip mine end for end and see, that would put the long cooling fins in the front but that simply wouldn't matter that much. You would also have to rotate the rear casting one way or the other to time for reverse operations.
11-05-2011 | 05:03 PM
#55
RE: SuperTigre 4500 conversion
If I remember correctly, they have a extra hole in the rear rotary valve disc that fits on the rod. If you use the alternate hole, then it runs in reverse.
But maybe they don't as I haven't looked at one in a long time now.
But maybe they don't as I haven't looked at one in a long time now.
11-06-2011 | 07:41 AM
#62
RE: SuperTigre 4500 conversion
ORIGINAL: hsukaria
Does an engine this large size require less ether and less oil to run? So I imagine the fuel would be cheaper than smaller engines?
Does an engine this large size require less ether and less oil to run? So I imagine the fuel would be cheaper than smaller engines?
I assume that since the engine is larger, then less ether would be needed as the engine can contain the heat better with less heat loss and it has more volume to compress. Oil content in the fuel is likely similar to the glow fuel. But since it is a diesel then running a little more oil shouldn't be a problem or hurt anything. Since it has a bronze bushed connecting rod I would tend to err on the conservative side myself.
11-06-2011 | 06:25 PM
#63
RE: SuperTigre 4500 conversion
ORIGINAL: earlwb
Supertigre suggests using a fuel with 15% minimum oil content flow fuel for break in. After running in the engine for at least two gallons of fuel, then one can run 10% to 12% oil content glow fuel. Whether the oil is all synthetic, all castor or a blend is not critical. There are several fuel companies that make and sell special large Supertigre engine glow fuel too.
I assume that since the engine is larger, then less ether would be needed as the engine can contain the heat better with less heat loss and it has more volume to compress. Oil content in the fuel is likely similar to the glow fuel. But since it is a diesel then running a little more oil shouldn't be a problem or hurt anything. Since it has a bronze bushed connecting rod I would tend to err on the conservative side myself.
ORIGINAL: hsukaria
Does an engine this large size require less ether and less oil to run? So I imagine the fuel would be cheaper than smaller engines?
Does an engine this large size require less ether and less oil to run? So I imagine the fuel would be cheaper than smaller engines?
I assume that since the engine is larger, then less ether would be needed as the engine can contain the heat better with less heat loss and it has more volume to compress. Oil content in the fuel is likely similar to the glow fuel. But since it is a diesel then running a little more oil shouldn't be a problem or hurt anything. Since it has a bronze bushed connecting rod I would tend to err on the conservative side myself.
1/4 gallon nitro fuel per flight can get expensive pretty fast. [&o]
11-07-2011 | 06:15 PM
#65
RE: SuperTigre 4500 conversion
ORIGINAL: pe reivers
some folks use ether for starting only. The warm engine seems to be able to run without it.
some folks use ether for starting only. The warm engine seems to be able to run without it.
