We offer a set of custom designed stainless steel headers for the Ultima GTR and CanAm cars that utilize the GM LS1 or LS6 engine package. These components are the very same high quality that we provide to our NASCAR customers. They utilize 3/8 inch stainless CNC exhaust flanges, 304 or 321 (turbocharged applications) stainless tubing and high-quality Burns or SPD merge collectors. Catalytic converters, stainless steel racing mufflers and 3 inch exhaust tubing solutions are also available.
This particular set was designed for a customer in Switzerland who used an MTI 7.0 litre (427 cu inch) LS6 engine in his project. The headers are designed to match the LS6 Stage III exhaust ports which require the use of 1.875 inch OD tubing. For this design, MTI provided the exhaust port dimensions for proper flange match. In addition, we were able to obtain a 3d solid model of the LS1/LS6 engine. Coordinates of the exhaust port locations and obstacles were taken from the solid model and imported into our MatLAB piping design software. After 8 hours of computer time, the results are exported back into our 3d modeling package (Solidworks) where the headers can be combined with the engine model to check for fit and clearances.
Below is a photo from our 3d modeling package:
Two versions of a 3d model is also available for downloading. Double click on the file below, and after downloading, you will be asked if you want to install the Solidworks viewer. Click on Yes, and a module that enables your web browser to display and manipulate 3d objects will be loaded and if everything is successful, a 3d design will pop up in your browser. Read the help file to see how to "section", "make transparent", "measure", and rotate the design around to your liking.
LS6wHeaders.htm This file is in Solidworks .htm format ( 25 megabytes)
LS6wHeaders.EASM This file is in Solidworks eAssembly format (16 megabytes) These files are smaller, but you will have to download the Solidworks viewer program.
Download the free Solidworks eDrawing software at: http://www.solidworks.com/pages/products/edrawings/viewer.html
Follow instructions after downloading and opening as shown above. Please note that the 4 into 1 merge collectors are not rendered in this version of the design model.
In conjunction with Brammo Motorsports (www.brammo.com), we are developing a compact, low profile twin-turbo engine package for mid engine cars, including the Ultima's. Horsepower for these packages ranges from 600bhp to over 1300bhp.
Spectrum5/Brammo Motorsports
Twin Turbo V8 Engine Packages
Introduction
Spectrum5 Racing and Brammo Motorsports offer a series of twin-turbocharged V8 engine packages. Each engine package has been professionally designed and developed to achieve specific performance objectives for race, street, or individual customer requirements.
We put everything we've learned in 30 years of experience with engine development and technologies into every package. Three recent projects, an Ultima GTR, an Ultima Can Am, and twin-turbo Shelby GT-350 are reviewed later as examples.
Spectrum5 Racing provides engine modeling, simulation and optimization services to GM Racing and Hendrick Motorsports for advanced NASCAR engines. Spectrum5 also developed proprietary software that automatically designs tubing solutions used in headers and intercooler applications. Because of this, header design and fabrication services are often provided for NASCAR as well as F1 racing packages.
Recently, Spectrum5 developed the headers for the new Toyota V10 F1 engine for the Ralt Chassis widely used in Indy and F1 racing venues.
TTConcept.htm This file is in Solidworks .htm format ( 1.2 megabytes)
TTConcept.EASM This file is in Solidworks eAssembly format (600 kbytes) These files are smaller, but you will have to download the Solidworks eDrawing program.
Download the free Solidworks eDrawing software at: http://www.solidworks.com/pages/products/edrawings/viewer.html
Follow instructions after downloading and opening as shown above. Please note that the 4 into 1 merge collectors are not rendered in this version of the design model.
Boost
Supercharging was developed during World War II to improve aircraft engine performance at altitude. Superchargers are generally gear driven in aircraft applications, or belt driven in automotive uses and consume crankshaft horsepower. Turbochargers, developed later, provide the same benefits in increased manifold pressure and power, but utilize waste heat, thereby improving efficiency dramatically.
Recently, compact belt driven superchargers have been developed for street applications that utilize smaller, more compact compressor technology developed for turbochargers. These packages are attractive in many applications because of the smaller packaging dimensions. However, they are still much less efficient than turbochargers due to being crankshaft driven.
New Generation Twin
Turbo Package
The biggest issue with turbocharging is packaging all the required components and plumbing. In a race twin-turbo setup, these components include air intake and filtration, intake manifold, throttle bodies, turbochargers, headers, wastegates, and turbo exhaust components. Often, the plumbing required to interconnect all these pieces is a daunting design problem.
Our new generation twin turbo package consolidates the air intake, filter, throttle bodies and intercoolers and intake manifold in one low-profile, compact intake plenum assembly built from CNC and sheet metal components.
Water to air intercoolers are utilized which allows this integration and has the advantage of being fed with chilled water for drag applications, or a heat exchanger for street/road race use. New hybrid turbochargers utilizing compact T03 series turbine sections with integral waste-gates driving larger T04 compressors for larger displacement engines provide a compact turbo assembly with minimal plumbing. Custom headers, turbo exhaust and turbo intake and outlet pipes are still required.
Overall, this new package provides sizzling street or race performance in a low-profile compact package. Although normally aspirated small-block engines can produce 600+ bhp, they're not suitable for street use due to extremely poor idle and very peaky torque. Twin turbo packages provide very high output power, good idle, a broad usable torque and high efficiency.