Custom Automotive Performance Products

The cooler plenum and throttle body will also help keep the power level stay more consistent. Most cars feel slightly sluggish on very hot days, or after a time of stop-and-go driving. This is in part because of the intake air temperature rising. These spacers will help stop this power loss. IN certain applications, these spacers also add volume to your plenum, or smooth out the path to the cylinders, which will help increase torque throughout the powerband.

Spacers are great bang-for-the-buck, proven performance item, especially on an already modified vehicle; while not having any negative side effects like lower gas mileage. Many spacers sold are a fiber phenolic. But all of Cheetah spacers are made from Garolite, which has equivalent insulation properties to normal Phenolic, but is more moisture resistant. This is preferred, since an engine bay can have many different climates, with varying humidity's. Many vehicles also run EGR and PCV vapors back through the intake, and Garolite stands up to this harsh environment; as it is also more chemically resistant. In addition, with a wet nitrous kit, extra injectors, or a water injection kit, there may be considerable amount of fluid in the intake. 

These mounts stop the jumping or twisting of the motor under the hood. This movement is caused by the rotating mass of the crankshaft and transmission components. With stock mounts, the engine will twist itself in the engine bay when the throttle is opened, or during high-speed shifts. Over time, this force will destroy the stock rubber mounts. When this happens, the rubber may split or rip, allowing the engine to potentially move inches back and forth. This can destroy CV joints, other mounts, and create even worse wheel-hop.

With these mounts, shifts will be much crisper. There should not be any noticeable added vibration on a car with any suspension modifications, and many times the mounts will smooth the vehicle vibrations by stopping excess movement caused from soft factory mounts. While pressing the gas pedal, a vehicle is much more responsive; as the motor does not lose as much torque twisting into the mounts.

At a price usually less than that of inferior stock mounts, these are not only a great performance item, but a bargain for each application.

Underdrive pulleys achieve both of these goals with a two-fold approach.

Stock accessory pulleys are usually made of heavy, cast steel. They are produced to be made at the cheapest possible price. These steel pulleys require a significant percentage of an engines power to rotate them. Using lighter Aluminum alloys, along with detailed machining processes, the pulley can be made as light as possible; requiring less power to rotate it. This recovered power is an increase easily seen on a dyno and felt during everyday driving.

Also, these pulleys are made with a smaller diameter than the stock pulley. This rotates the belt driven accessories at a slightly slower pace (around 10-13% slower). Since each accessory takes power to turn, hp and torque are regained through the "underdriving" process also.

Typical hp increase are around 5%. So for a 200hp engine, an increase of 10hp is easily possible.

Cheetah can also quote any job, large or small. We can design parts from simple sketches, or create CNC-made parts from 2D or 3D CAD files.

Contact Cheetah if any questions, quotes, or requests.