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Hi guys..most of you know that I wanted the Twin HKS T04Z turbos...now that I have found a much better performing and cheaper turbo that is a dual ball bearing and has many many factory upgrades to it. I wanted you guys to tell me what you think about the twin turbo selection. :thumbsup:
Category: GT Series
GT Series Turbo 70mm
Item Number: GT70BB-Billet
Features:
GT70Billet Q-Trim, a billet compressor wheel with 4.5:1 pressure ratio and record setting performance. Ideal horsepower range is 540 –760 and max flow up to 840HP, it comes standard with .70 T4 Tangential turbine housing. See options below for other turbine A/R’s. Suitable options are: · Super Duplex, Dual Ballbearing · X-trim turbine wheel · Polished Compressor Housing This Innovative Ballbearing GT Series turbo features; · Dual Ceramic Ball Bearing System · ITS Big Shaft option for strength · ITS 10 bladed Turbine Wheel · Inconel for high EGT durability · Redline balancing · Highest mechanical and adiabatic efficiency available All components meet rigorous quality control, each turbo is assembled by experienced turbo technicians, taking the utmost care to ensure Innovative’s exacting tolerances are met. Innovative Turbo’s line of Ballbearing Turbos are the only BB Turbos that can be rebuilt and upgraded.
Turbo picture link
http://www.innovativeturbo.com/images/cart/products/GT61-lg.jpg
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ALS, or Anti-Lag System, also known as bang-bang, is an engine management technique that minimizes turbo-lag.
Turbo systems can exhibit what is known as turbo-lag, which is the time needed for the turbocharger to gain enough speed for the compressor wheel to pressurize the intercooler, tubing and intake-system of an engine.
The amount of turbo-lag or time, depends on many factors such as rotating-group inertia, how well the componenets in the system work together, back-pressure before and after the turbo, engine (volumetric) efficiency, camshaft spec, etc. . In race cars it is common to fit relatively large turbochargers in order to produce enough airflow to provide desired engine output. Big turbochargers can display significant amounts of lag (on small displacement engines) due to their increased rotational inertia. The lag-issue, is partly dealt with by fitting a turbo with a Dual, Ceramic Ball Bearing System in the center section, such as the system produced by Innovative Turbo Systems. Another helpful addition is the bypass valve or dump valve, which operates during part-throttle or when the driver lifts. These valves will help reduce the load on the turbo and allows it to free-wheel, keeping the rotational speed higher – thus reducing turbo-lag. In race cars where immediate torque and engine response are critical factors, most applications can benefit from the use of anti-lag systems.
How ALS works:
The ignition timing is retarded with 25-30° or more and the air/fuel mixture is made richer at low throttle opening and low load. With the ignition timing delayed, the air/fuel mixture reaches the exhaust tubes mostly unburned and because the exhaust system’s temperature is higher than the flash point of the air/fuel mix, the unburned fuel explodes in the exhaust tubes. The turbo is accelerated by the increased temperature/pressure and the rotational speed of the turbo is kept high. While ALS is engaged, full boost is available the moment the throttle is opened.
Some downsides:
An immediate increase in exhaust gas temperature (800°C to 1100°C+) whenever the system is activated puts greater demand on all turbo-system components - reliability becomes a major concern; the turbocharger and exhaust-manifold tubing must be made with the best available materials, driving the cost higher. ALS is prohibited from use in certain racing series.
Remember tell me what you guys think
Category: GT Series
GT Series Turbo 70mm
Item Number: GT70BB-Billet
Features:
GT70Billet Q-Trim, a billet compressor wheel with 4.5:1 pressure ratio and record setting performance. Ideal horsepower range is 540 –760 and max flow up to 840HP, it comes standard with .70 T4 Tangential turbine housing. See options below for other turbine A/R’s. Suitable options are: · Super Duplex, Dual Ballbearing · X-trim turbine wheel · Polished Compressor Housing This Innovative Ballbearing GT Series turbo features; · Dual Ceramic Ball Bearing System · ITS Big Shaft option for strength · ITS 10 bladed Turbine Wheel · Inconel for high EGT durability · Redline balancing · Highest mechanical and adiabatic efficiency available All components meet rigorous quality control, each turbo is assembled by experienced turbo technicians, taking the utmost care to ensure Innovative’s exacting tolerances are met. Innovative Turbo’s line of Ballbearing Turbos are the only BB Turbos that can be rebuilt and upgraded.
Turbo picture link
http://www.innovativeturbo.com/images/cart/products/GT61-lg.jpg
ALS, or Anti-Lag System, also known as bang-bang, is an engine management technique that minimizes turbo-lag.
Turbo systems can exhibit what is known as turbo-lag, which is the time needed for the turbocharger to gain enough speed for the compressor wheel to pressurize the intercooler, tubing and intake-system of an engine.
The amount of turbo-lag or time, depends on many factors such as rotating-group inertia, how well the componenets in the system work together, back-pressure before and after the turbo, engine (volumetric) efficiency, camshaft spec, etc. . In race cars it is common to fit relatively large turbochargers in order to produce enough airflow to provide desired engine output. Big turbochargers can display significant amounts of lag (on small displacement engines) due to their increased rotational inertia. The lag-issue, is partly dealt with by fitting a turbo with a Dual, Ceramic Ball Bearing System in the center section, such as the system produced by Innovative Turbo Systems. Another helpful addition is the bypass valve or dump valve, which operates during part-throttle or when the driver lifts. These valves will help reduce the load on the turbo and allows it to free-wheel, keeping the rotational speed higher – thus reducing turbo-lag. In race cars where immediate torque and engine response are critical factors, most applications can benefit from the use of anti-lag systems.
How ALS works:
The ignition timing is retarded with 25-30° or more and the air/fuel mixture is made richer at low throttle opening and low load. With the ignition timing delayed, the air/fuel mixture reaches the exhaust tubes mostly unburned and because the exhaust system’s temperature is higher than the flash point of the air/fuel mix, the unburned fuel explodes in the exhaust tubes. The turbo is accelerated by the increased temperature/pressure and the rotational speed of the turbo is kept high. While ALS is engaged, full boost is available the moment the throttle is opened.
Some downsides:
An immediate increase in exhaust gas temperature (800°C to 1100°C+) whenever the system is activated puts greater demand on all turbo-system components - reliability becomes a major concern; the turbocharger and exhaust-manifold tubing must be made with the best available materials, driving the cost higher. ALS is prohibited from use in certain racing series.
Remember tell me what you guys think
