Complete Technical Specifications and Notes on SVS Upgrade Product Options-

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QUARTER MASTER RACING CLUTCHES

General Clutch Maintenance Instructions


Flywheel

Inspect for physical damage and cracks. Inspect ring gear for excessive wear. Check friction surface for flatness. Maximum allowable warpage is .006". When resurfacing the flywheel, the step height of .100" +.000"/-.002" must be maintained. (Quarter Master offers a flywheel resurfacing service for a nominal fee.)

Clutch Housing

Check that the pressure plate and floater plate(s) slide through the housing freely. This will ensure the clutch will release properly. Check for cracks from high mileage, discoloration from excessive heat, and grooves cut into the inside diameter by the friction discs due to bell housing flex and misalignment or a worn pilot bushing.

Clutch Pack

Inspect for worn splines, cracked hubs, loose rivets, and cracked or bent discs. Measure the discs and replace when the minimum thickness is reached.

Floater Plates

Check for flatness. Maximum allowable warpage is .006". Measure the thickness. Minimum thickness is .177".

Pressure Plate

Check for flatness. Maximum allowable warpage is .006". Measure the thickness. Replace if below the minimum specified for that particular clutch.

Clutch Cover

Check diaphragm spring for discoloration from excessive heat. Check for excessive wear on spring fingers from release bearing contact. Check for cracks on aluminum clutch covers after extended service. The clutch cover is not a field serviceable item. (Quarter Master can rebuild your clutch cover for a nominal fee.)

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Industry leader SVSi Hi-Performance Stainless Steel Headers

PRODUCT HIGHLIGHTS

• Fabricated from mandrel bent, primary-sized stainless steel tubing to form a pyramid inside for maximum flow.
• Completely hand finished inside for proper flow.
• Available in 034 and 321 stainless. Inquire about Inconel® applications.
• Professional race quality construction for maximum durability and performance.
• Designed specifically for V-10 and 5 cylinder racing engines.
• Dimensions are to your specifications.
• 5 into 1 DYNOSYS® adjustable-venturi dynamometer collector system are available for your engine development program...please call for details.

HEADER SPECIFICATIONS:

• All 304 and .065 Stainless Steel tubing
• 100% Purge and TIG welded
• All ports hand finished and matched
• Header completely assembled and checked for fit
• Equal length to + ½"
• Three different styles depending on application: (i.e. stock, early, late, modified, etc.)
• Engineered for ease of installation
• All headers use Burns® 5 into 1 merge collectors

• Style #1 - 1½" into 1-5/8"
• Style #2 - Straight 1-5/8"
• Style #3 - 1-5/8" into 1-3/4"

Superior Design

Before we examine the superior design of a merge collector over other types of exhaust collection devices, it is important to understand that turbulence is the exhaust gases enemy. The painstaking process that engine builders do to port cylinder heads to exacting shapes and smooth exhaust ports for maximum flow should be the same foundations used to construct an efficient exhaust system. Notice the merge collector (see fig. 1) is completely fabricated out of pre-bent tubing that is the same size as the primaries. The cone that is formed greatly streamlines the critical transition from the primary pipe to the outlet pipe. Another benefit of this collection device is that the collector being conical in shape (and the inside tapering cone as well) produces the 'venturi effect', which aids in extracting the exhaust gases out of the cylinders.

Port Matching

Everyone knows that a square peg doesn't fit into a round hole, but many exhaust systems are constructed in this manner. The first example (fig. 2) (not currently shown) shows how mating a round tube to this "D" shaped port blocks the top and the bottom two corners. Fig. 3 (not currently shown) demonstrates a more dramatic example of port blockage. Square shaped ports are even farther away from round shaped, and extensive blockage occurs on all 4 corners. Not only does this create turbulence and reversion, but actually reduces the true or effective area of the port. One has to wonder if all expensive head porting and polishing is necessary if this type of round port matching is used. Remember, superior exhaust gas flow may start at the valves, but it ends at the tailpipe and not in the head.

Stepped pipes?

An efficient exhaust system should help extract the gases out of the cylinder (known as "scavenging effect"). Normally aspirated engines have a critical period when both the exhaust and intake valves are open. (known as overlap) in which differences in pressures actually tries to suck the gases that have been already fired back into the cylinder. This not only takes up space in the cylinder (which prohibits a full mixture of fuel and air to enter the cylinder on the next intake stroke), but also increases the cylinder temperature because of the hot gases being drawn back into the cylinder. At high engine speeds, the gas rushes into the pipe with considerable velocity. In doing so, it has accelerated the gas already in the pipe, and the supply of high speed gas is limited, and soon tails off. This causes a decrease of pressure near the engine, and an increase down further in the pipe. Now if the pipe is increased in diameter at the point where the pressure increase takes place, the wave of increased pressure will almost disappear. In summary, an increase incross-sectional area will reduce the force necessary to accelerate the gas already in the pipe and help reduce pressure build-up. Another advantage with stepped pipes is that the increasing diameters help let the gases expand as they travel through the system.

Conclusion

As one can see, the sum of the parts in an efficient exhaust system add up to create the scavenging of exhaust gases. The gains seen on a dyno with this type of system should not be looked at as an end, but as a baseline start. Questions such as; "Can we run more overlap or different cam specifications with this exhaust system?", or "Will an airbox on injected motors help speed up the column of air to achieve higher induction charges?" need not be posed so to maximize both the efficiency of the induction and exhaust side of the engine. With experimentation, all of these elements can provide some very worthwhile gains in your race engine.

VIPER HEAT SHIELD KIT

INSTALLATION INSTRUCTIONS

CONTENTS:

The contents of your Viper Heat Shield Kit should include all of the components shown below and in Figure 1.

Warning:

1)The installation of this kit will involve contact with the engine exhaust manifolds, and other components of the exhaust system.  DO NOT attempt to install this kit until these components are cool the touch.

2)The installation of this kit requires the vehicle to be elevated.  Use properly rated jacks, jack stands, and /or vehicle lift, and ensure proper safety measures are in place before working beneath the vehicle.

Steering Shaft Shield Installation

1. Without elevating the vehicle, raise the hood, ensure the engine is off and cool to the touch.
2. With the reflective surface facing out, wrap Shield SS1 into a tapered tube around the steering shaft, with the small diameter facing the front of the vehicle. (See Figure 2)
3. Hold the shield on one end with the seams overlapping approximately 1/2 inch.  Join the seams with aluminum tape.  Continue forming the tube and joining the seams using foil tape until the entire length of the tube is covered.  Securely fasten the tape to the shield by applying pressure along the seam
4. The completed shield should form a smooth loose fitting tube around the steering shaft.

Fig. 2

Installation Preparation

1. Elevate and properly support the vehicle.  Never work under a vehicle without first using recommended s using jack-stands or mechanical lift locks.
2. Ensure the exhaust pipes and manifolds are cool to the touch.
3. Remove the side sill covers and the factory aluminum heat shields in front of each toe box.
4. To properly install the Viper Heat Shield Kit, follow the sequence below.  It does not matter whether installation is started on the driver or passenger side, only that the steps below are followed in order, for either side.

COSMETIC ENHANCEMENT:

If desired, sufficient aluminum tape is provided with the kit to seal the edges of the fiberglass insulating panels. Simply form the tape around the edge and seal it on both sides.  Please note; taping the edges will not improve the performance of the shields and therefore is not required. 

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