front mounted intake
- Thread starter pocdragon
- Start date
Mr. Minecraft
Visionary
It seems that you should be able to.
GearNut
Active Member
That is one of bairdco's race bikes.
Here is his thread on his experiment:
The Backwards Engine Experiment, 1939 Colson
Here is his thread on his experiment:
The Backwards Engine Experiment, 1939 Colson
bairdco
a guy who makes cool bikes
yeah, you have to match the transfers by grinding away at the case if you want it to perform.
norm (2door) did it first, without matching the ports and it worked, but he didn't keep it backwards for very long. i think he just wanted to see if it could be done.
on some motors, you've gotta 180 the piston, too, or the rings will hang up.
then you have to make a new intake and modify the exhaust.
norm (2door) did it first, without matching the ports and it worked, but he didn't keep it backwards for very long. i think he just wanted to see if it could be done.
on some motors, you've gotta 180 the piston, too, or the rings will hang up.
then you have to make a new intake and modify the exhaust.
bairdco
a guy who makes cool bikes
it heats up about the same, but there is a performance improvement. all the motors i've reversed are faster than stock.
there's a lot of different theories tossed around as to why it would be faster.
one, the motor spins counter-clockwise, so it's flowing straight through.
two, the ram air effect. i doubt that comes into play at the low speeds these bikes go, and they seem to run leaner with the carb in front, but i think not having the carb stuffed in the rear behind a hot engine helps. it gets some fresh air, so it should breathe better.
three, since the transfer ports in the case are now twice the size, it gets more fuel mixture, and lubricates better.
i clean up all the ports since i have the engine apart, so i'm sure that helps, just like it would if it's not reversed. but it does seem to run faster.
and cosmetically, it looks bad ass...
there's a lot of different theories tossed around as to why it would be faster.
one, the motor spins counter-clockwise, so it's flowing straight through.
two, the ram air effect. i doubt that comes into play at the low speeds these bikes go, and they seem to run leaner with the carb in front, but i think not having the carb stuffed in the rear behind a hot engine helps. it gets some fresh air, so it should breathe better.
three, since the transfer ports in the case are now twice the size, it gets more fuel mixture, and lubricates better.
i clean up all the ports since i have the engine apart, so i'm sure that helps, just like it would if it's not reversed. but it does seem to run faster.
and cosmetically, it looks bad ass...