By far the steepest learning curve for a nitro rookie is learning how to tune a carburetor. All carburetors control engine speed by varying the amounts of air and fuel that enter the engine. In RC 2-stroke engines, either a rotary-barrel or slide-valve carb is used to control this vital air/fuel mixture; the valve controls the amount of air fed into the engine, and the fuel-mixture needle, or needles, controls the fuel delivery. Two-needle carbs offer an enormous performance advantage over their single-needle counterparts. Two-needle carbs allow better acceleration and idling because the low-speed mixture can be leaned independently of the high-speed mixture. When properly tuned, a 2-needle carb engine will feel more on the pipe through the whole rpm range than any single-needle carb engine you’ve ever driven.
They say: "Tuning an RC carburetor is not an exact science!" But it can be if you use a reference measurement tool like APSX Nitro Tuner. Each time you use the tuner, you will know exactly at what value you have to be. It is much better being a little scientific rather than just relying on your experience.
It comes with the anodized enclosure, tubing accessories and the power adapter ready to go. It comes with benefits such as:
1 – Simple guidelines for an easy and repeatable tuning process
2 – As Methanol is default fuel type, there are four types of fuel (E85, Diesel, Gasoline, Methanol) and lambda options
3 – Ready to use with nitro RC engines and also with your real vehicle to perform a quick AFR readings
Cost Effective & Small
It is 4.724” (120mm) L X 4.055” (103mm) W X 2.087" (53mm) H size 0.06" (1.52mm) thick aluminum anodized metal enclosure
Required Oxygen Sensor: Bosch Wideband Oxygen Sensor (LSU 4.2 Part#17014) [Included]
Reseller Tier-1: 25 Pieces
Reseller Tier-2: 50 pieces