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553bhp & 465 lb/ft 370Z Full Amuse with Greddy Twin Turbo


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Reading on the GT Haus Meisterschaft exhaust system specs:

 

1. What is the difference between GTS and GTC?

Meisterschaft GTC (EV Control) exhaust systems are the world’s most technologically advanced units on the market. The GTC exhaust system utilizes electronic valves which control the “open†and “close†functions of the exhaust system. This allows the user to control the sound level, exhaust back pressure, and overall vehicle performance.

 

The Meisterschaft GTS (Ultimate Performance) exhaust systems are engineered for enthusiasts who want a no nonsense exhaust system that will perform and produce a superior sound at all times.

 

2. Performance Upgrade

All Meisterschaft exhaust system are engineered and tuned to provide maximum performance gains without sac- rificing the exotic exhaust tone. Performance can be maximized if Meisterschaft rear muffler sections are used in conjunction with optional mid-pipe section(s) and/or catalytic replacement section(s).

 

3. Weight Savings

Meisterschaft exhaust systems are significantly lighter than the Original Equipment Manufacturer (OEM) unit’s overall carrying weight. Meisterschaft stainless steel (SUS) exhaust systems typically weigh 35% to 50% less than the OEM units. In addition to our stainless steel exhaust system, our titanium (Ti) exhaust system offers a weight reduction of 75% to 80% when compared to the OEM unit.

 

4. Build Quality

Meisterschaft exhaust systems are handcrafted by skilled fabricators who utilize plasma cutting and laser weld- ing techniques to create these works of art. Each Meisterschaft exhaust system is held to the highest standard: Perfection.

Meisterschaft exhaust systems utilize the highest quality and most durable glass wool pack. Using the best materials allows Meisterschaft exhaust systems to endure the extreme temperatures and conditions it faces on a daily bases which aids to the longevity of the exhaust systems.

 

5. Power Gains by Reducing Back Pressure

Meisterschaft exhaust systems help reduce internal engine heat and back pressure by improving exhaust scavenging from the combustion chamber. The free flow designs of Meisterschaft exhaust systems help minimize the fundamental power robbing effects commonly found with the restrictive OEM exhaust system.

 

6. The Negative Effects of Back Pressure

Back pressure is a prominent characteristic of an aftermarket exhaust system. The back pressure in an exhaust system allows for a reduction in overall sound volume but limits engine power when spent exhaust gases are backed into the combustion chamber thus contaminating the next burn cycle. The inefficient burn cycle limits the potential power output of the engine.

 

A second issue associated with back pressure is heat build-up. This typically occurs in an OEM style cham-

ber muffler. Hot exhaust gases travel through louvers and into dead-end chambers. The heat builds up in the muffler which then travels back through the entire exhaust system to the exhaust manifold and engine. The heat retention causes damage to the entire exhaust system as well as the catalytic converter, manifold and even the gaskets.

 

7. Meisterschaft Solution to back Pressure

Meisterschaft exhaust systems are designed to reduce back pressure while maintaining a rich powerful exotic tone. Non-friendly “droning†exhaust frequencies are carefully dismissed by setting natural frequency at upper ranges as well as dampened with a dense wall of acoustical absorbing material inside the canister.

 

The straight-through design prevents excessive heat retention allowing the entire system to run cooler and last longer.

 

 

 

370Z (Z34) Coupe / Cabrio

2x102mm (Round Split)

NI0212503 - GTS (Ultimate Sport Performance: Dual Side) Ti - $2,998

 

NI0204002 - Straight Cat-Back Mid Pipe Section Ti - $1,498

 

NI0204005 - Front Y-Pipe Collector Section Ti - $1,498

 

NI0204007 - Titanium Arms + Tips (Round Split) Ti - $998

 

Tips Option:

OP100076 - Shadow Black Chrome Tips (quad) - $698

 

 

 

:cloud9:

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Some interesting reading:

 

Forced Induction and Automatic Transmissions:

 

One of the most common questions regarding aftermarket forced induction and an automatic transmission is: Can they work together? It is not a simple answer as the end user often doesn’t understand the intricacies of the automatic transmission and how the increased power from a forced induction system affects the internals of the transmission.

Lets first start with understanding how an automatic transmission works. The transmission uses a series of clutch packs to engage and disengage each gear. Unlike a manual, each gear has its own set of clutch packs. An automatic transmission uses fluid and solenoids inside the valve body to direct hydraulic pressure to the appropriate piston to engage a clutch pack to engage a gear. It is important to note that automatic transmissions require special fluids with specific properties such as viscosity to move through the intricate components of the transmission.

 

When power is increased beyond the safety factor the OEM uses, the intricate components are affected in multiple ways. First, increased power results in additional friction and viscous shear thus increasing the temperature of the transmission fluid. When the fluid is heated beyond the optimal temperature, the viscosity (fluid’s resistance to flow) is reduced. This reduction in viscosity prevents the transmission from operating correctly. In addition, the higher temperatures cause the fluid to degrade and break down into smaller molecules further reducing the viscosity. It is important to note that the fluid not only serves to operate the clutch packs, but lubricates the gears and other moving parts as well. Therefore, adding additional power requires a heavy duty transmission cooler to keep the fluid at its optimal operating temperature. Below is a chart that shows the maintenance schedule based on transmission fluid temperature.

 

2013-07-21_11-27-25.jpeg

 

It is very important to monitor transmission fluid temperatures with forced induction and if fluid temperatures are consistently high, more transmission fluid cooling may be needed to keep temperatures in check.

 

Generally, when an OEM designs a transmission, they have a specific torque capacity in mind and use this capacity to specify the number of clutch disks used in each clutch pack. The valve body is also programmed to operate these clutch packs in a specified manner. For example, when cruising in 5th gear on a 5 speed automatic, the transmission will only downshift to 4th gear when a certain amount of pedal pressure is applied for a certain amount of time. Because 5th gear is used mainly for cruising, there are less clutches in the clutch pack and therefore, the ultimate holding capacity is less than that of the lower gears that are used more for accelerating. In the case of a 7 speed automatic, both 6th and 7th use fewer clutch packs with 5th being a transition gear still using fewer clutches than 1st – 4th. When more power is added, more load is placed on these clutch packs. One way to prevent premature wear of the clutch packs is to modify the valve body to increase hydraulic pressure so that the transmission will downshift more readily. A modified valve body also shifts faster and slips the clutches less to achieve a firmer feeling when the transmission shifts. This keeps the transmission in lower gears when you are trying to accelerate the car with more torque. On the new 7 speed automatic, line pressure can be increased by reflashing the ECU. When going for serious power, however, increased line pressure simply isn’t enough.

 

Even with a heavy duty transmission fluid cooler and valve body upgrade, more than doubling the factory rated horsepower requires more extensive work to keep the transmission working well. In this case, it is necessary to overhaul the transmission and replace the clutch packs, pistons that actuate the clutches and drums that hold the clutches with high performance versions. The drums must be enlarged to accommodate additional clutches and a more aggressive friction material must be selected for the clutches themselves. In addition, the piston diameters are increased to apply additional force to the clutch packs. While these modifications increase the holding capacity of the transmission, it is not indestructible as there is only so much room for additional clutch packs, larger drums and pistons.

 

Ultimately, care must be used when driving a vehicle equipped with an automatic transmission and aftermarket forced induction. When accelerating in a high gear, damage can result with the additional torque. Therefore, it is vital that the driver is aware of the limitations of the transmission and downshift when they want to accelerate. High speed runs at full boost in high gears is inadvisable with an automatic transmission, modified or otherwise. Remember that the transmission was not designed for those operating parameters.

 

This doesn’t mean that forced induction cannot be added to an automatic transmission equipped car, just that care and caution must be exercised in addition to supporting modifications appropriate to the power level achieved.

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So whens the order for the "NI0212503 - GTS (Ultimate Sport Performance: Dual Side) Ti - $2,998" kit going in then :p

 

Just be careful with the FI on the auto box. (disclaimer, Ive no ides when it comes to auto boxes so...) BM's brother supercharged his Auto Celica, the box lasted about 2 weeks before is exploded. He went from 190 BHP to about 350 ish. Perhaps the Zeds box is stronger, I certainly hope so!

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