R12 and 134a are refrigerants used in car air conditioning systems. R12 was used in most cars and trucks until 1995 when it was replaced with 134a. The main difference between the two…
Category: Engine
Where to buy vintage restoration parts
Classic Body Parts or Restoration Performance is one of the largest dealers for Goodmark Industries and Dynacorn International and Sherman classic restoration parts in the country! We strive to meet all your…
How to Choose a aftermarket Muffler
How to Choose a Muffler Your muffler is a crucial component of the exhaust system. The main purpose of a muffler is to quiet (or muffle) the engine sound as it exits…
What does an Exhaust X-pipe do?
What does an X-pipe do? X or H both are balance tubes which are meant to help the scavanging effect of your exhaust system. X-pipes are less invasive towards flow and tend…
Can I run an overdrive transmission in my car without a computer
The answer is YES. Vehicles that came from the factory equipped with these transmissions did not use a computer to control the transmission. The confusion comes from the fact that the computer…
Why use Zink In your Oil?
Passenger car and truck oils are formulated to reduce emissions and provide longer drain intervals. This has been done by increasing detergents and reducing anti-wear additives, but your race engine operating under…
How to determine correct Carburetor CFM?
The carburetor itself has perhaps the most pronounced effect on fuel consumption. Since each carb comes pre-calibrated for a certain cubic inch and RPM range, the best place to start is with…
How to choose the correct stall speed for your converter
A normal converter has a stall, depending on vehicle, from 900 to 1,200 RPM. As the stall speed increases, the lockup increases, but with normal driving the vehicle will accelerate with small…