Supercharger?
03-09-2010, 03:30 AM
#2
Join Date: Mar 2010
Location: ILLINOIS
Posts: 3
I like the Vortech V3 Got it on my 2006, NO issues, smooth power and with some 4:10 gears and control arms upper and lower U are ready to smoke the base Vette, Charger, Camaro, Challenger, etc , etc. And most importantly U will smoke the guys with the new 2011 Plus U will not blow your ENGINE ! When U get bored get a custom tune and bump it up 30 HP.
I am personaly thinking of doing something different with my 2007, turbo or twinscrew, or just Nitrous. So I am interested in the topic myself.
I am personaly thinking of doing something different with my 2007, turbo or twinscrew, or just Nitrous. So I am interested in the topic myself.
03-09-2010, 08:07 AM
#6
3rd Gear Member
Join Date: Oct 2008
Location: Toronto, Ontario, Canada
Posts: 743
Here's a write up that you might find helpfull..
Let's Talk Intercoolers! 8/3/2001
An intercooler (sometimes referred to as an aftercooler) is designed to remove heat from the compressed air coming from the supecharger (or turbo) before it enters the engine's induction system. An intercooler works just lie a radiator - air is cooled by fins, bars, louvres, and plates inside the intercooler that are cooler than the compressed air coming from the supercharger. The reduction in air temperature increases the density of the air (more air molecules per cupic foot), which consequently increases your engine's ability to make more horsepower and torque. The decreased air temperature allows you to run more boost on a given octane of fuel before detonation occurs..
What's up with the terms?
The term 'intercooler' comes from days when they were first used on twin turbo aircraft engines. With two turbos, the air charge would get VERY hot - it was heated by the first turbo, then heated again by the second turbo. To combat this double temperature rise they placed a heat exchanger in between the two turbos and called it an "intercooler" because of its location in between two turbos. When this same kind of heat exchanger is used on a single turbo or supercharger, it is located after the supercharger, and should technically be called an "aftercooler" because of its location after the single turbo or supercharger. These terms didn't seem to stick, though. The term 'intercooler' caught on and became almost universal for all heat exchangers regardless of their position. The term 'aftercooler' became synonymous with air-to-water coolers because this is the term Vortech uses to describe their coolers, which are water cooled. So while technically incorrect, we will still use the popular terms 'intercooler' to mean any air-cooled charge cooler and 'aftercooler' to mean any water-cooled charge cooler.
Why Intercool?
There are several important benefits to intercooling that have resulted in their increased popularity in recent years. The most significant advantage is that intercooling increases the detonation threshhold because of the cooler air charge, meaning you can run more ignition advance for higher performance, or run lower octane fuel before experiencing detonation. This makes intercoolers very desirable for those looking to get the most out of their street vehicles on pump gasoline. The cooler air also allows your engine to run slightly cooler, reducing the chances of overheating. Intercoolers also enable your engine to produce more horsepower because of the denser air charge being delivered to the engine's combustion chamber.
Don't assume, however, that you can simply bolt an intercooler on to your supercharged engine and expect power gains with no other changes to the system. Intercoolers do create some internal drag causing a slight reduction in boost, and can also cause the engine to run lean (knock) due to the denser air charge. These problems are easily corrected and should not cause concern, however they cannot be ignored. Boost pressure can be brought back up (actually you'll probably want to run substantially more boost than you did with a non-intercooled application) using a smaller supercharger pulley. The smaller supercharger pulley will spin the supercharger faster and increase its output. Make sure your supercharger is designed to handle these higher boost levels. Correcting the air/fuel ratio to compensate for the denser air charge can be done with larger fuel injectors, recalibrated FMU, larger fuel pump, adjusting the mass air meter, etc.
Intercoolers... Aftercoolers... What's the difference?
In order for an intercooler to effectively cool the air that passes through it, the intercooler itself must be cooled by some external means. Most intercoolers are cooled just like your engine's radiator - air flows over the outside of the intercooler's fins, which in turn cool the air inside the intercooler - hence the name Air to Air Intercooler. Some intercoolers, however, are cooled by water instead of air, in which case they are generally called aftercoolers, or Air to Water Intercoolers. The benefit to an aftercooler is that air passing through it can be cooled more than in a traditional air/air intercooler if very cold water and ice are used to cool the intercooler - in fact, some aftercoolers chill the air to below ambient air temperatures even after it has been compressed by the supercharger. The reason aftercoolers are more effective in cooling the air charge is because water is a much better conductor of heat than air - in fact water conducts 4 times as much heat as air! The obvious drawback is that with time, the water will heat up to the temperature of the air passing through it, and its ability to cool incoming air goes away. Some aftercoolers, however, use a small radiator to cool the water that runs through the system, making them ideal for street use as well as racing. For drag racing applications aftercoolers packed with ice work very well because they only need to work for around ten seconds or so (hopefully) before you shut down and head to the victory podium. For milder racing and street applications air/air intercoolers or aftercoolers with radiators are more practical as their ability to cool incoming air is not reduced with time.
When is it right to intercool?
Obviously, intercoolers only work with supercharged or turbocharged vehicles where there is a substantial difference in temperature between the air entering the engine and the cooling medium (the intercooler). Because superchargers heat up the air significantly as they compress it, it is possible for there to be a very large temperature difference between the intercooler (ambient air temperature - 80F degrees or so) and the compressed air (200F - 350F degrees). Superchargers with higher boost will create a hotter discharge, so as you increase your boost, the effects of the intercooler become more and more noticable. In general we would not recommend intercoolers on supercharged engines with less than 8-9psi of boost, as the benefits will not be substantial. Essentially, run an intercooler when only when you running peak boost (i.e. any more boost would cause detonation) for the octane of fuel you use. Intercoolers work well in both warm and cool climates and work exceptionally well on marine applications because of the easy access to cold water.
Don't intercoolers restrict the flow of air into the engine?
Yes. Any time there is an obstacle in the way of the air flowing into the engine (like an intercooler fin or louvre), a pressure loss will result. Today's intercoolers are very effective in minmimzing this pressure loss so that the benefits obtained by cooling the discharge temperature normally outweigh the 1-2psi (approximate) loss in air pressure, which can be regained by running a smaller pulley and increasing the output of the supercharger.
The final word!
So while intercoolers work well on higher output superchargers, they are not recommended for lower boost level kits, like an average 6psi street kit. If you're looking for exceptional performance from your engine, consider adding an intercooler to your engine, or consider purchasing a supercharger kit that comes with an intercooler. Most ATI ProCharger systems include intercoolers and still remain very reasonably priced. Paxton has also recently introduced several intercoolers to fit their more popular supercharger systems, while Vortech already includes intercoolers with several kits. Good luck with your intercooling endeavors, wherever they may take you!
Let's Talk Intercoolers! 8/3/2001
An intercooler (sometimes referred to as an aftercooler) is designed to remove heat from the compressed air coming from the supecharger (or turbo) before it enters the engine's induction system. An intercooler works just lie a radiator - air is cooled by fins, bars, louvres, and plates inside the intercooler that are cooler than the compressed air coming from the supercharger. The reduction in air temperature increases the density of the air (more air molecules per cupic foot), which consequently increases your engine's ability to make more horsepower and torque. The decreased air temperature allows you to run more boost on a given octane of fuel before detonation occurs..
What's up with the terms?
The term 'intercooler' comes from days when they were first used on twin turbo aircraft engines. With two turbos, the air charge would get VERY hot - it was heated by the first turbo, then heated again by the second turbo. To combat this double temperature rise they placed a heat exchanger in between the two turbos and called it an "intercooler" because of its location in between two turbos. When this same kind of heat exchanger is used on a single turbo or supercharger, it is located after the supercharger, and should technically be called an "aftercooler" because of its location after the single turbo or supercharger. These terms didn't seem to stick, though. The term 'intercooler' caught on and became almost universal for all heat exchangers regardless of their position. The term 'aftercooler' became synonymous with air-to-water coolers because this is the term Vortech uses to describe their coolers, which are water cooled. So while technically incorrect, we will still use the popular terms 'intercooler' to mean any air-cooled charge cooler and 'aftercooler' to mean any water-cooled charge cooler.
Why Intercool?
There are several important benefits to intercooling that have resulted in their increased popularity in recent years. The most significant advantage is that intercooling increases the detonation threshhold because of the cooler air charge, meaning you can run more ignition advance for higher performance, or run lower octane fuel before experiencing detonation. This makes intercoolers very desirable for those looking to get the most out of their street vehicles on pump gasoline. The cooler air also allows your engine to run slightly cooler, reducing the chances of overheating. Intercoolers also enable your engine to produce more horsepower because of the denser air charge being delivered to the engine's combustion chamber.
Don't assume, however, that you can simply bolt an intercooler on to your supercharged engine and expect power gains with no other changes to the system. Intercoolers do create some internal drag causing a slight reduction in boost, and can also cause the engine to run lean (knock) due to the denser air charge. These problems are easily corrected and should not cause concern, however they cannot be ignored. Boost pressure can be brought back up (actually you'll probably want to run substantially more boost than you did with a non-intercooled application) using a smaller supercharger pulley. The smaller supercharger pulley will spin the supercharger faster and increase its output. Make sure your supercharger is designed to handle these higher boost levels. Correcting the air/fuel ratio to compensate for the denser air charge can be done with larger fuel injectors, recalibrated FMU, larger fuel pump, adjusting the mass air meter, etc.
Intercoolers... Aftercoolers... What's the difference?
In order for an intercooler to effectively cool the air that passes through it, the intercooler itself must be cooled by some external means. Most intercoolers are cooled just like your engine's radiator - air flows over the outside of the intercooler's fins, which in turn cool the air inside the intercooler - hence the name Air to Air Intercooler. Some intercoolers, however, are cooled by water instead of air, in which case they are generally called aftercoolers, or Air to Water Intercoolers. The benefit to an aftercooler is that air passing through it can be cooled more than in a traditional air/air intercooler if very cold water and ice are used to cool the intercooler - in fact, some aftercoolers chill the air to below ambient air temperatures even after it has been compressed by the supercharger. The reason aftercoolers are more effective in cooling the air charge is because water is a much better conductor of heat than air - in fact water conducts 4 times as much heat as air! The obvious drawback is that with time, the water will heat up to the temperature of the air passing through it, and its ability to cool incoming air goes away. Some aftercoolers, however, use a small radiator to cool the water that runs through the system, making them ideal for street use as well as racing. For drag racing applications aftercoolers packed with ice work very well because they only need to work for around ten seconds or so (hopefully) before you shut down and head to the victory podium. For milder racing and street applications air/air intercoolers or aftercoolers with radiators are more practical as their ability to cool incoming air is not reduced with time.
When is it right to intercool?
Obviously, intercoolers only work with supercharged or turbocharged vehicles where there is a substantial difference in temperature between the air entering the engine and the cooling medium (the intercooler). Because superchargers heat up the air significantly as they compress it, it is possible for there to be a very large temperature difference between the intercooler (ambient air temperature - 80F degrees or so) and the compressed air (200F - 350F degrees). Superchargers with higher boost will create a hotter discharge, so as you increase your boost, the effects of the intercooler become more and more noticable. In general we would not recommend intercoolers on supercharged engines with less than 8-9psi of boost, as the benefits will not be substantial. Essentially, run an intercooler when only when you running peak boost (i.e. any more boost would cause detonation) for the octane of fuel you use. Intercoolers work well in both warm and cool climates and work exceptionally well on marine applications because of the easy access to cold water.
Don't intercoolers restrict the flow of air into the engine?
Yes. Any time there is an obstacle in the way of the air flowing into the engine (like an intercooler fin or louvre), a pressure loss will result. Today's intercoolers are very effective in minmimzing this pressure loss so that the benefits obtained by cooling the discharge temperature normally outweigh the 1-2psi (approximate) loss in air pressure, which can be regained by running a smaller pulley and increasing the output of the supercharger.
The final word!
So while intercoolers work well on higher output superchargers, they are not recommended for lower boost level kits, like an average 6psi street kit. If you're looking for exceptional performance from your engine, consider adding an intercooler to your engine, or consider purchasing a supercharger kit that comes with an intercooler. Most ATI ProCharger systems include intercoolers and still remain very reasonably priced. Paxton has also recently introduced several intercoolers to fit their more popular supercharger systems, while Vortech already includes intercoolers with several kits. Good luck with your intercooling endeavors, wherever they may take you!
03-09-2010, 12:17 PM
#8
5th Gear Member
Join Date: Oct 2009
Location: Oregon
Posts: 2,645
It sounds like you're at the beginning stages of considering a supercharger. Your best bet would to be some google searches, and then find a GOOD speed shop nearby and talk with them about what all is involved. I am guessing you'd be outsourcing the install.
You could also call Brenspeed and talk with one of their techs, as they'd be a good place to actually buy a kit from. Or perhaps talk to some reps at Whipple. I don't have any experience with them, but I hear good things.
You could also call Brenspeed and talk with one of their techs, as they'd be a good place to actually buy a kit from. Or perhaps talk to some reps at Whipple. I don't have any experience with them, but I hear good things.
03-09-2010, 02:23 PM
#9
4th Gear Member
Join Date: Mar 2007
Posts: 1,249
It's all up to how much money you want to spend, the brand you trust, and what you are trying to accomplish with the sc?
Twin scres or even the new tvs e force would have basically all of your torque avilable down low, where a centri would have to be wound up to higher rpms to make comparable power. A ts would be better for off the line power. I personally am looking into a saleen supercharger for my 06 gt. Keep in mid all the supporting mods cost when pricing a sc also. Don't go with a bare bones kit and later add everything individually. With your stock block and our weak rods I would recommend looking to stay under 430-440 rwhp. I think the biggest threat to throwing a rod would be how many pounds of boost running and the torque levels, not so much the rwhp level.
Take your time and map out prices.
Twin scres or even the new tvs e force would have basically all of your torque avilable down low, where a centri would have to be wound up to higher rpms to make comparable power. A ts would be better for off the line power. I personally am looking into a saleen supercharger for my 06 gt. Keep in mid all the supporting mods cost when pricing a sc also. Don't go with a bare bones kit and later add everything individually. With your stock block and our weak rods I would recommend looking to stay under 430-440 rwhp. I think the biggest threat to throwing a rod would be how many pounds of boost running and the torque levels, not so much the rwhp level.
Take your time and map out prices.
03-09-2010, 02:26 PM
#10
4th Gear Member
Join Date: Mar 2007
Posts: 1,249
The vortech would be the worst out of that list.
If you have the cash and ability? The whipple or kb would probably be the best. Followed by the edelbrock, saleen, roush tvs, and probably the paxton ho.
If you have the cash and ability? The whipple or kb would probably be the best. Followed by the edelbrock, saleen, roush tvs, and probably the paxton ho.