Can you use nitrous with a dual plane intake?
The Truth About Running Nitrous On A Dual-Plane Intake. We hear it all the time: “You shouldn’t run nitrous on a dual-plane intake manifold.” But it’s our job to ask why. The first is that the raised half of the plenum is too close to the spray bars, so the nitrous and fuel will bounce off the intake floor.
Why would you use a dual plane intake?
Dual plane manifolds make better power off idle and at cruising rpm. The smaller plenums increase the airflow velocity. They also transmit the induction pulses from the intake valve to the carburetor better. This improves fuel atomization and metering, especially at low rpm.
What is a dual plane intake?
The traditional design choice for most stock intake manifolds, a dual-plane intake manifold is essentially two separate intake manifolds separated by a divided and unequal-height plenum. Each half or “plane” routes air and fuel from that group’s separate plenum area to half the engine’s cylinders.
Does a carburetor spacer add horsepower?
When you stack spacers, you are actually improving their insulation properties, and at the same time you’re getting more horsepower. This type of spacer will increase the velocity of your vehicle’s air-to-fuel charge. This means you’ll build low to mid-range torque.
What’s better single or dual-plane intake?
Single-plane manifolds have a single intake opening into the plenum and feeds all 8 cylinders directly. The larger plenum area is less restrictive and supports a higher power range than a comparable dual-plane manifold, which has a wider power range and works better at low rpm.
Is a carb spacer worth it?
Spacers are said to improve air/fuel vaporization through and out of the carburetor. Anytime the air/fuel charge has to turn sharply coming off the carb, it increases the chance of separating the fuel from the air. Spacers also have an insulating affect, tending to cool the air/fuel charge.
Do you need a carb spacer?
Carb spacers only do one thing, increase the size of the plenum area of the intake manifold. Larger plenums = higher RPM power curves (less low RPM torque). Unless you are operating at or above 6,000 – 8,000 RPM and are using a single plane intake manifold, you “shouldn’t” need a carb spacer.
What is the best dual-plane intake?
The Edelbrock Performer RPM Air Gap is perhaps the best dual-plane intake on the market today. It combines excellent torque capability with sufficient air flow for 480 to perhaps 500 hp.
How much difference does a carb spacer make?
Actually, reducing the plenum volume will give the engine more of an edge at lower rpm while taking away a bit of power up top in higher rpm. While open spacers add plenum volume, which can reduce low-end torque and extend the upper rpm range, a four-hole spacer will add low-end torque by increasing the air velocity.
What is the best carb spacer material?
Wood is the best insulating material, with a thermal conductivity rating of 1.02. It’s also cheap and easy to shape. However, a wood carburetor spacer is the least resistant to gasoline and chemicals. It soaks up liquid easily, causing the spacer to warp, become porous (causing vacuum leaks), and break down faster.