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.

Hays Clutch Tech and FAQ's

Q: Should I use an aluminum or steel flywheel? A: Aluminum flywheels with their lighter weight, are typically used in oval track and road race applications and are also popular in high-horsepower, light weight drag cars. These vehicles rely on engine horsepower to drive the wheels. Steel flywheels are used in applications that require additional engine torque for performance. A heavier flywheel can help acceleration from a standing start and keep the engine's RPM and power up through... (more)

Last Edited Jan 15th, 2011 07:54 am

Zex Installation Instructions for "Dry" Nitrous System 82011 for 4 and 6 Cylinder

Installation instructions for the ZEX 82011 4 and 6 cylinder "dry" Nitrous System including wiring diagrams, plumbing diagrams, bottle mounting tips and jet/hp chart.... (more)

Last Edited Nov 21st, 2007 07:39 pm

Zex Installation Instructions for Sportbike EFI Direct Port Nitrous System 82239

Installation instructions for the ZEX™ 82239 Sportbike EFI Direct Port Nitrous System including wiring diagrams, plumbing diagrams, bottle mounting tips and jet/hp chart.... (more)

Last Edited Nov 21st, 2007 02:08 pm

Power Valve Operation

The power enrichment system supplies additional fuel to the main system during heavy load or full power situations. Holley carburetors utilize a vacuum operated power enrichment system and a selection of power valves is available to "time" this system's operation to your specific needs. Each Holley power valve is stamped with a number to indicate the vacuum opening point. For example, the number "65" indicates that the power valve will open when the engine vacuum drops to 6.5" or below. An... (more)

Last Edited Nov 4th, 2007 01:00 pm

Lakewood Bellhousing Alignment Procedure

Due to manufacturers' machining tolerances of engine blocks in relationship to dowel pin location, it is quite possible for the crankshaft centerline and bellhousing bore to be misaligned. With the transmission installed in a misaligned condition, several problems can occur, such as pilot bearing and main shaft bearing wear, difficulty in shifting, and in extreme cases breakage of transmission gears and cases. While most housings will fall within the allowable limits, it is good insurance to... (more)

Last Edited Nov 5th, 2007 11:46 pm

Zex Installation Instructions for Dual Dominator Plate Nitrous System 82190

Installation instructions for the ZEX™ 82190 Dual Dominator Plate Nitrous System including wiring diagrams, plumbing diagrams, bottle mounting tips and jet/hp chart.... (more)

Last Edited Nov 21st, 2007 01:48 pm

Zex Installation Instructions for Direct Port Nitrous System 82032 for LSX Engines

Installation instructions for the ZEX™ 82032 LSX Direct Port Nitrous System including wiring diagrams, plumbing diagrams, bottle mounting tips and jet/hp chart.... (more)

Last Edited Nov 21st, 2007 12:56 pm

Zex Installation Instructions for "Wet" Nitrous System 82026 for LS1 and LS6 Engines

Installation instructions for the ZEX™ 82026 LS1 and LS6 "wet" Nitrous System including wiring diagrams, plumbing diagrams, bottle mounting tips and jet/hp chart.... (more)

Last Edited Nov 21st, 2007 11:47 am