Street Rod Engine Installation Angle

Clarence barnes explains the important role that the angle of the drive line plays in transferring torque from the transmission to the rear differential.

Street rod engine installation angle.

With the engine and pinion set at 3 degrees they do not line up directly and requires you to make them parallel. For example 32 48 ford flatheads sat parallel to the ground in 49 53 the back end of the engine was lower than the front. Engine pinion angle and ride height is all relative to the ground. The 3 degrees you keep hearing about is the recommended angle for carburetor cars with intake manifolds set at 3 degrees.

This misalignment allows the u joints to rotate on a street car. Rod bearings exist to facilitate bearing installation and are not specifically intended to prevent bearing. Find the difference between the two readings and this will be that u joint s working angle. The most important thing to remember is the angle of the intake you are using.

Miller likes to see 2 degrees of negative pinion angle relative to the driveshaft on applications in the 400hp range. If you look at the intakes you can see the difference in carb mounting. Most engines are set at 3 degrees when you look at the side of the intake manifold on a carburetor engine you will notice the manifold has an angle in it. To find the working angles follow these steps.

Been led to believe. One of the biggest misconceptions is the engine angle is it is relative to the frame. A magnetic angle finder was placed on the carburetor base and the blocks of wood added or subtracted until the base was level meaning the engine itself was angled down toward the rearend by. It states in the process that the next step is to measure the rear end pinion angle.

You want the carbs level to the ground. The article drive shaft harmonics in hot rod md explains how to set up the pinion angle on a rear end differential. It should be pointing upward towards the front with the vehicle sitting at ride height on a level surface. Place an angle finder on the bearing cap and take note of the reading.

Pinion angle up at the front should be the same as the crank trans angle down at the rear and the u joint angle should be 3 degrees or less. The grooves in the rod big end and cap and the protruding tangs on the.