Originally Posted by nugent_crai

where did you get your group buy from?

Originally Posted by Casey@TPCRacing

Pretty much any time there is throttle input a supercharger is "on boost".

Pretty decent Wiki Article for the how one works and the history...

http://en.wikipedia.org/wiki/Supercharger

Originally Posted by 1999Porsche911

Engines with a superchargers (or blowers) can have boost at 2 mph or no boost at 150 mph since all properly installed blowers and superhargers will have an intake bypass valve to eliminate boost when engine is not at or near WOT. Without the bypass valve, engine will run hotter and blower or compressor will run hotter than necessary.

Originally Posted by silk

I'm not sure if this bypass valve is part of the package ?

Originally Posted by silk

I went on the VF web and saw the kit includes a " Bosch pressure relief bypass system", but it doesn't sound its the 'intake bypass' !!

Originally Posted by 1999Porsche911

Misleading statement.

Engines with a compressor (or blower) can have boost at 2 mph or no boost at 150 mph since all properly installed supercharged systems will have an intake bypass valve to eliminate boost when engine is not at or near WOT. Without the bypass valve, engine will run hotter and blower or compressor will run hotter than necessary.

Originally Posted by silk

I went on the VF web and saw the kit includes a " Bosch pressure relief bypass system", but it doesn't sound its the 'intake bypass' !!

Originally Posted by 1999Porsche911

What would the valve be bypassing if not the intake?

Originally Posted by nugent_crai

doesnt it act like a BOV with a turbo where it expels all the build up gas? Im new to the Forced induction area, I would assume it alleviates the built up gas between the turbo and the engine like a BOV?

Originally Posted by Casey@TPCRacing

TPC superchargers kits are based on the Eaton M90, roots-type positive
displacement superchargers. The Eaton M90 supercharger produces a power curve similar to that of a modern factory turbocharged engine. The massive mid-range torque provides astounding vehicle acceleration on demand to greatly enhance the driving experience for sport driving. For using a very modest boost level(average 4.5psi), the top end power definitely holds its own compare to other brands of superchargers.

For more info on the Eaton M90 supercharger, please go to this link:

http://www.eaton.com/EatonCom/ProductsServices/PerformanceProducts/Products/Superchargers/index.htm


The piggy-back computer and the secondary fueling in this application is
NOT an afterthought. It would be uneducated to state such a claim that it is an afterthought. This engine management strategy is necessary for the ultra-wide powerband of the Eaton supercharger, which has the
characteristics of a modern factory turbo system. The challenge was to
tune for rapid pressure raising rate, while maintain drivability, emissions, and performance without the use of a Bosch factory turbo ECU.
That is why an external device was used. Some may argue that it is due to manufacturing cost. Well, it is not It cost us more to buy and external
hardware with wiring harness than 6 injectors and an ECU flash.

A centrifugal-type supercharger, such as Vortech, generates a narrower
powerband than an Eaton root-type supercharger. And its pressure raising
rate is more subdue for a given application. This characteristic makes the
centrifugal-type supercharger much easier to tune. A tuner can easily get
away with six injectors, an ECU flash, and then soldering an in-line
resistor into the factory wiring harness.

We are not claiming if one type of supercharger is better than another.
That is for you decide based on your personal needs.

We are not claiming if a piggy-back computer and secondary fueling is a
better engine management strategy than 6 bigger injectors, an ECU flash,
and soldering an in-line resistor to your factory harness. They are what
it takes for a given application to work.

And lastly, we are not claiming if the TPC brand superchargers are better
than other brand(s). It really comes down to your personal preference. We have invested a lot into producing a supercharger kit using superchargers from an OEM supplier and its supporting components. We may not have sold as many as other brand(s) but we make a excellent product. We are here to inform you about our products without prejudice and slandering of other companies and products as we know there is more than one option available.