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Carburetor spacers are valuable tuning aids for both performance cars and racing cars alike. Positioned between the carburetor and the intake manifold, a spacer will alter the relationship between these two components. Consequently, the spacer can usefully raise or lower the position of the torque and power-band within the rpm range. 4-Hole Spacers. Generally, a 4-hole spacer; that is, one with four holes that align with the four barrels of the carburetor will increase throttle response and acceleration. Open Spacers. Usually an open spacer; that is, one with a large square-shaped hole beneath the carburetor, will decrease throttle response and dampen acceleration. It can also raise the torque and power-band within the RPM range. The combination spacer increases throttle response and acceleration and tends to broaden the torque and power band. Spacer thickness. Normally, a thicker spacer increases the effect; that is, if a ½”-thick spacer improves matters, a 2”-thick spacer will further increase the effect. Varying the thickness of a spacer affects engine performance. Spacer Tuning. Since each spacer will react differently to each engine combination, there is neither a right nor a wrong type. Spacers are valuable tuning tools.
Tags : carburetor spacers, four holes, engine combination, throttle response, performance cars, racing cars, tuning tools, spacer, intake manifold, engine performance, acceleration, torque, rpm, aids, relationship
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