# Question: What Is An Aggressive Cam?

## What gives a cam a rough idle?

The rough idle for long duration cams is due to two primary factors: Large valve overlap (the period at TDC exhaust where both intake and exhaust valves are open) causes an increase in exhaust residual fraction..

## How do you check a cam lift?

Tip: To quickly find maximum lobe lift, measure the base circle of the cam and subtract it from the thickness across the cam lobe’s highest point (see the diagram below). Tip: Maximum valve lift can be calculated by multiplying the maximum lobe lift times the rocker ratio.

## What does Heads and Cam mean?

The “top end” usually refers to everything above the short block, i.e. the heads, cam, and intake–basically everything that’s needed to make horsepower.

## What is the difference between stage 1 and stage 2?

Stage 2 mods tend to offer larger power gains than stage 1 but will require additional work on other parts if you want them to work reliably. Like stage 1, stage 2 mods are usually a DIY fit but will require more specialist knowledge and tools.

## What is considered a mild cam?

A mild cam is usually a little bigger than the stock cam. Most of the “Mild” cams have just a bit of lope to them and will give you a bit more power than the stocker. My car, unfortunately, has a mild cam in it with it’s TR224. Still makes more power than stock but idles and rides real close to stock.

## What cam specs mean?

distance in degreesThe definition is simply the distance in degrees, as measured on the cam, between the point of peak lift on the intake lobe and the peak lift on the exhaust lobe. … These are often the only specifications considered when selecting a cam.

## What is considered a big camshaft?

It is listed in degrees of crankshaft rotation. When someone refers to a “big cam,” they mean it has longer duration, not higher Lift. … Duration at 0.050″ is the degrees of crankshaft rotation between when the lifter is raised 0.050″ and when it is 0.050″ from its resting position.

## What is the best cam to put in a stock 350?

COMP Cams CL12-600-4 Camshaft For 350 Chevy – Best Top Pick Review. COMP Cams CL12-600-4 camshaft option is our top pick, and for good cause. With its many great features that will increase the performance of your 350 Chevy significantly, this choice will give you the most horsepower for the most cost-effective price.

## What does a Stage 2 hot cam do?

The gist of it is that the Stage 2 camshaft from Hot Cams will increase power in the top end using precisely engineered cam profiles to alter valve duration and lift. This makes for an engine that loves high RPMs and is at home on the track, trail, or wherever you decide to wring it out.

## How does a cam increase horsepower?

Performance cams increase the duration and timing of the valve openings during the engine stroke, increasing horsepower and making your car accelerate more quickly. You’ll idle slightly rougher with a performance cam, but get a throaty rumble that’s desirable for some gearheads, depending on your vehicle.

## What is a Stage 1 Cam?

-2. -3. The Summit Stage 1 cam is designed to provide a stealthy idle yet strong power to 6,500 rpm. Idle can be raised or lowered for lope or smooth idle. It is the largest cam that works with a stock converter.

## What does more cam lift do?

More cam lift means the valve will open further. Increasing cam lift will allow more air or exhaust to move through an engine.