Welcome to Music City Rod Shop, your source for automotive performance and racing tech info and installation instructions. From increasing performance in street or race cars to handy automotive formulas and installation instructions, we have collected information from manufacturers including MSD Ignition, Taylor/Vertex, Mr.Gasket, Moroso Performance, Competition Engineering, Holley Performance, Comp Cams, Design Engineering, Manley Performance, Hooker Headers, Earls Performance, Wiseco Piston, Hilborn Fuel Injection, and many more.
GENERAL GUIDELINES FOR ADJUSTING BRASS AND NITROPHYL FLOATS Two methods of float adjustment are provided for with Holley performance carburetors depending on the style of float bowl and needle and seat assembly employed. They are the internal (dry) setting and the external (wet) setting. The internal float adjustment is accomplished with the fuel bowl off the carburetor. With “internally adjustable” needle and seats, the fuel bowl is inverted and the float tang, or tab, is adjusted... (more)
Most nozzle designs are all alike. Other manufacturers may change a hole location here or a tip angle there, but in reality, there really hasn't been a breakthrough in nozzle technology in the past 20 years... until now. The most important function of a nozzle is to properly mix and atomize the correct amounts of nitrous and fuel. Current designs spray a solid stream of fuel at the nitrous stream and hope that it will atomize properly. Other designs are forced to be run excessively... (more)
Mounting brackets should be installed at an angle that is compatible with the direction of pull on the webbing under full load. Preferred mount is in a double shear with allowance for the bolt-in bracket to pivot and align toward the direction of the load as shown in Figure 1. Figure 1 and Figure 2 All mounting brackets should be attached directly to the frame or chassis of the car and installed to limit the driver’s body travel both upward and forward. Do not weld around or near belts or... (more)
Installation instructions for the ZEX™ 82018 LT1 "dry" Nitrous System including wiring diagrams, plumbing diagrams, bottle mounting tips and jet/hp chart.... (more)
This section covers the MSD 7AL-2 and 7AL-3 Ignition Controls. These ignitions share the same wiring to run the vehicle, but the 7AL-3 has several optional accessories that can be connected. The 7AL-2 has a single stage rev limiter while the 7AL-3 has a Three Step Rev Control along with other accessories which are explained on the next page.... (more)
This section covers the MSD 10 Ignition Control. The MSD 10, PN 7500, is a race only ignition system and is unique in that it incorporates two ignition coils. The MSD Pro Power Coil, PN 8201, is the coil responsible for the Capacitive Discharge side of the ignition while the Pro Power Coupler Coil, PN 8209R, is a high performance inductive coil. The coils run in parallel sending two sparks that work as one. The CD is responsible for ionizing the spark plug gap, then the current from both... (more)
Installation instructions for the ZEX™ 82047 EFI Truck Nitrous System including wiring diagrams, plumbing diagrams, bottle mounting tips and jet/hp chart.... (more)
A ballast resistor is not necessary with any MSD Series Ignition but can be left in-line if originally equipped. The MSD Blaster Coils and any other oil-filled, canister style coils should be mounted so that the high voltage coil tower is pointed upward. Also, mount the coil so the coil wire is as short as possible to keep resistance low. Use of any coil that is not compatible may damage the MSD and void the warranty.... (more)