Fletch
Member
After reading about porting I got the "want more power" bug and started going to town on my engine with the dremmel!
First I trimmed the piston skirt. I know this is a substitute for lowering the intake port, but my compulsiveness, love for power tools, and "more is better" mentality possessed me to also lower and widen the intake.
I had already opened up the exhaust port quite a bit for the expansion chamber, but I decided to make it even higher! It is now well less than 1 inch from the top. (I keep reading that 1.1" is the magic number). I also opened up the manifolds and gaskets.
It is all very crude and imprecise because it is by eye with a hand held rotary tool with no measuring, but I'm hoping I will get lucky and have it have a good wide power band without losing too much torque. I cut the header on the expansion, so I can always make it longer if I need more bottom torque back.
I'm going to test it out today so I'll let you guys know how it goes. It's wet and rainy though. If you check out the pics...please let me know what you think as far as possibly messing the engine up or sending it to an early death with these mods, because I have another cylinder I can replace it with if need be.
The carb intake is jb welded, hence the inside view of the port. The second cylinder is stock and there for comparison.
Thanks!
P.S> I know the exhaust is ridiculously misshaped but I was worried I had taken too much off already and that if I kept going I wouldn't get it even and go too far. I could of used more select dremmel tools but that requires patience and a trip to the store
First I trimmed the piston skirt. I know this is a substitute for lowering the intake port, but my compulsiveness, love for power tools, and "more is better" mentality possessed me to also lower and widen the intake.
I had already opened up the exhaust port quite a bit for the expansion chamber, but I decided to make it even higher! It is now well less than 1 inch from the top. (I keep reading that 1.1" is the magic number). I also opened up the manifolds and gaskets.
It is all very crude and imprecise because it is by eye with a hand held rotary tool with no measuring, but I'm hoping I will get lucky and have it have a good wide power band without losing too much torque. I cut the header on the expansion, so I can always make it longer if I need more bottom torque back.
I'm going to test it out today so I'll let you guys know how it goes. It's wet and rainy though. If you check out the pics...please let me know what you think as far as possibly messing the engine up or sending it to an early death with these mods, because I have another cylinder I can replace it with if need be.
The carb intake is jb welded, hence the inside view of the port. The second cylinder is stock and there for comparison.
Thanks!
P.S> I know the exhaust is ridiculously misshaped but I was worried I had taken too much off already and that if I kept going I wouldn't get it even and go too far. I could of used more select dremmel tools but that requires patience and a trip to the store
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