- #1
RG500
- 14
- 0
I have a couple of questions about 2 cycle engines:
1) Can someone further explain “time-area” to me in regard to the 2 cycle engine porting? I do grasp the basic concept of time-area values and I do have a formula to calculate the time-area values for a 2 cycle engine however there is still quite a bit of gray area involved that I would like to clear up before I get too far into this latest little project of mine.
2) My engine is a ’86 Suzuki RG500, a 4 cylinder 2 cycle square configuration as in it has 2 cylinders in the front and 2 cylinders in the rear. I would like to make up a small engine dynamometer for testing my changes to this engine however I would like to test and change only 1 cylinder instead of changing and testing all 4 cylinders at the same time. I do have 3 spare cylinders, 2 cylinder heads, a complete spare ignition system, several carburetors and I am in the process of obtaining a crankcase and a crankshaft at this time.
What I would like to do is to make a small engine dynamometer that I could make in my garage to check what changes I’ve made in the output of the engine by changing only 1 cylinder and without having to change all 4 cylinders then take the bike to the track for testing. I really don’t care about the real world horsepower numbers, only if a change is in a positive direction or not so I am looking for ideas on how to gauge that change with reasonable accuracy.
Any thoughts and ideas will be greatly appreciated.
Thanks in advance,
RG500
1) Can someone further explain “time-area” to me in regard to the 2 cycle engine porting? I do grasp the basic concept of time-area values and I do have a formula to calculate the time-area values for a 2 cycle engine however there is still quite a bit of gray area involved that I would like to clear up before I get too far into this latest little project of mine.
2) My engine is a ’86 Suzuki RG500, a 4 cylinder 2 cycle square configuration as in it has 2 cylinders in the front and 2 cylinders in the rear. I would like to make up a small engine dynamometer for testing my changes to this engine however I would like to test and change only 1 cylinder instead of changing and testing all 4 cylinders at the same time. I do have 3 spare cylinders, 2 cylinder heads, a complete spare ignition system, several carburetors and I am in the process of obtaining a crankcase and a crankshaft at this time.
What I would like to do is to make a small engine dynamometer that I could make in my garage to check what changes I’ve made in the output of the engine by changing only 1 cylinder and without having to change all 4 cylinders then take the bike to the track for testing. I really don’t care about the real world horsepower numbers, only if a change is in a positive direction or not so I am looking for ideas on how to gauge that change with reasonable accuracy.
Any thoughts and ideas will be greatly appreciated.
Thanks in advance,
RG500