Stillen vs Vortech. Pro's and Con's
#76
Modded Member
iTrader: (20)
Originally Posted by ttrank
I did not get much of a discount on the kit most of the deal I got was on the hood. I think $5,239 for the Stage 2 kit and $369 for the CF hood.
I can't get the hood because I have an '05- I would need some custom fabrication on my own hood.
#81
#82
#83
Originally Posted by ttrank
That picture is not in the oil pan.... is it?
I am not a mechanic but from what I know that is the block. I apologize if I am wrong.
I am not a mechanic but from what I know that is the block. I apologize if I am wrong.
#84
Originally Posted by mkerley
Hold on. Before everyone leaves this thread happy and more knowledgeable, many people seemed to agree to the statement quoted here. But, backpressure is never desireable.
#86
I think the main thing here to understand is that we're talking about 2 different types of blowers here ... centrifugal vs. twin-screw. The mechanics of each is different so each will respond differently to the same setup.
There may be a slight increase in low end torque when there is increased back pressue but this is usually at the expense of higher boost levels. The stillen will have better low-end response because of the type of blower it is. A twin-screw blower, by nature, will generate better power at lower RPM's.
Regardless, a supercharger setup is going to suffer from parasitic loss from the belt drive of the blower and this will directly affect your torque. With a centriugal blower, it has been shown (in my car and many others) that opening up your exhaust will lower the boost in the manifold while still producing the same power output. What this means is that you will either keep the same power while running a safer level of boost ... or allow you to crank up the blower (different impeller, smaller pulley, etc) so that you're again running "stock" boost levels but greatly increasing your power.
There may be a slight increase in low end torque when there is increased back pressue but this is usually at the expense of higher boost levels. The stillen will have better low-end response because of the type of blower it is. A twin-screw blower, by nature, will generate better power at lower RPM's.
Regardless, a supercharger setup is going to suffer from parasitic loss from the belt drive of the blower and this will directly affect your torque. With a centriugal blower, it has been shown (in my car and many others) that opening up your exhaust will lower the boost in the manifold while still producing the same power output. What this means is that you will either keep the same power while running a safer level of boost ... or allow you to crank up the blower (different impeller, smaller pulley, etc) so that you're again running "stock" boost levels but greatly increasing your power.
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12-23-2015 10:01 AM