Supercharger Performance and Engine Performance Parts

Posts Tagged ‘v8’

Alternative auto tech announces their new supercharger kit for the 2010 Camaro.

The kit is based on the eaton TVS (twin vortex system) with the new 4 lobe rotors and 160* lobe twist.

AAT hasn’t released much detailed info on what’s included in the kit… but we do know is that it does include the following:

• Eaton TVS 2300 supercharger top
• AAT custom short-ram style air intake with high flow cone air filter and heat shield
• Optional Borla Cat-Back Exhaust system

The combination boost engine performance by increase horsepower from 426 horsepower @ 5,900 rpm and 420 lb.-ft. @ 4,600 rpm up to 501 rear wheel horsepower and 455 wheel ft.lbs of torque.

Assuming a 17% drive train loss this gives us an estimated 600 crank hp and a calculated approximate 6psi of boost which is a very modest boost level for the Eaton TVS and does not warrant an intercooler for this application.

For people interested in even more power increases… Borla offers a complete exhaust solution including after-market high flow headers, an x-piped midsection as well as the cat-back exhaust.

All of these parts are available as an ‘installed’ turn-key 500whp package through AAT or as standalone parts for a ‘DIY’ install.

Find out more info here:

Alternative Auto Tech

Borla

Technorati Tags: Camaro, Eaton TVS, exhaust, v8

Building on the beautiful high revving v8 powerplant, MTM motorsports upgrades the performance, looks, styling, and handling of the 4.2 Audi RS4.

The heart of the upgrade package is a Lysholm twin screw compressor elevating intake pressures to a modest 6 psi. This fairly low boost pressure means that the engine’s static compression ration can be left untouched and that the supercharger package can be a true ‘bolt on’ affair. Following through with this ‘bolt on’ strategy, MTM have coupled the supercharger with an integrated top mount intake manifold with integrated air to water intercooler courtesy of Laminova intercoolers. Also in the mix is an MTM bolt-on cat-back exhaust system exiting in an exotic dual dual (that’s four outlets) 3″ tips.

The car is further enhanced with suspension modifications, lowering, lightweight body parts rounding off the performance package.  The result of all of this work is shifting power up from 420 hp @ 7800 rpms to 540 hp @ 8220 rpms. Torque is amplified from an original 317 ft lb , 430 Nm @ 6000 rpm to a new 412 ft lbs, 560 Nm @ 3700 rpms.

The attention to sound engineering design in this kit (using a twin screw supercharger, coupled with an integrated manifold and integrated intercooler) resulting in short intake path lengths, means that the whole package is both still highly throttle responsive as well as having more power delivery on the top end. Not only is it impressive that the car gains over 120 hp with this modification, but more impressive is that the power band growns from 1800 rpms on the stock high-revving V8 to a very meaty 4500 rpms between peak torque and peak power. This not only makes the car faster in a straight line, but makes it much more versatile on exiting corners and carrying its hefty weight and the weight of the AWD Quattro system in the lower rev range.

See the car in action

Find out more directly from MTM motorsports

Technorati Tags: Audi, exhaust, Intercooler, Lysholm, MTM, PSI, RPM, v8, VAG

I am inspired by GM-Australia. They have taken the Vauxhaull (Pontiac GTO) family car and turned into a car for the automotive enthusiast family. The latest edition of the Vauxhall is dubbed the Vauxhall VXR8 Bathurst S, and packs alot of bite. 

The Vauxhall VXR8 Bathurst  S starts off with a factory 6.2 liter V8 producing 431 hp and builds on that with the addition of an Eaton M122 supercharger. The charger forces 8 pounds of boost into the massive V8 giving out over 560 hp in its most basic form and 527 ft-lbs of torque!

The engine modifications on this car include:

• A large capacity intercooler
• High-flow fuel injectors
• A separate cold air intake
• Walkinshaw-developed ECU map

Also availabe as an option is a bi-model exhaust system worth another 10hp at the current boost and power level. The exhaust can be switched by the user between a tame ’street’ performance and sound level, and a more aggressive ‘optimum‘ setting. 

Considering the tame nature of the LS3’s idle and the very modest boost level. A camshaft swap, an increase in boost could produce more power on this engine, however, it is very unfortunate that the Eaton M122 at it full swing can only breathe aboud 575hp worth of air leaving the current setup pretty ‘maxed out’ as is. However, there still remains the option for a ported blower (al la stiegemeier) as this blower is similar to the M122 fitted to the GT-500.

Therefore a new camshaft for the LS3, a ported M122, and a smaller charger pulley could easily push this Vauxhaull over the 630 hp mark! 

Find more information here:

Car magazine’s review of the Vauxhall VXR8 Bathurst S

Stiegemeier blower services

Walkinshaw performance

Technorati Tags: Eaton M122, Stiegemeier, supercharger tuning, v8, VXR-8, Walkinshaw

I realize that I’ve spent a lot of time in the past two weeks talking about roots style positive displacement superchargers. Those are not the only types of superchargers out there. Centrifugal superchargers have a top end biased power curve that works perfectly for applications where there are traction limitations, in drag racing where most of the race is spent in the higher rpm range, or on big motors that already have plenty of torque.

Here are two examples of vortech centrifugally supercharged beasts:

1997 Pontiac Trans Am street car: Capable of 700hp 6.4 liter Big Block Vortech S-trim supercharger 1.75″ headers into 3” collector and 3” true dual exhaust	Supercharged 97 Trans Am.
1973 Purpose Built Drag Camaro Dynoed over 1400hp 8.4 liter Big Block!! Vortech YS1 supercharger 2.25″ headers into an open collector	1973 drag camaro

Find the complete articles here:

1997 Pontiac Trans Am – Blown Away

1973 Chevy Camaro – The Beauty Of Plan B

Technorati Tags: big block, header, v8, Vortech