ZnsaneRyder
Member
- Local time
- 2:24 PM
- Joined
- Jun 19, 2008
- Messages
- 805
At wide open throttle, ambient air pressure is pushing the air into an engine. It is not sucked in...........
Ram air would only benefit engine performance at wide open throttle and high speeds (as mentioned)................
Suddenly the stock carb does not match the new airflow or remains a major restriction to the improvements just made. See where I'm going?..............
I'd have to differ about the first statement about WOT. The throttle adjusts the allowed rate of airflow, and WOT is just max flow. I can clearly run an engine at WOT and it will suck air in clearly shown when I put my hand by the intake of an engine. Atmospheric pressure always pushes air into an engine, because of the suction.
Also ram air only making a difference at or near WOT is EXACTLY WHAT I WANT. I'm looking to gain RPM range, as I have more than plenty of low-end torque. I even lowered my clutch to 1800RPM to take more advantage of that torque, and also allow lower speeds without slipping the clutch. However, with ram air, I want this baby to rev as well. More low and high speed range = driveability.
Now the stock carb and exhaust, I'm aware they can be improved. I clearly understand how that works. They even sell adaptors for a GX390 carb (13HP) for my engine to increase HP. But increasing airflow helps no matter what size carb, and I obviously would upgrade my carb when I have the money since I want performance anyway. I'll upgrade parts as I go along. I'm just using what I have now, and enjoy the learning of hot-rodding an engine.
Happy Riding
ZnsaneRyder