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Supercharger? [Merged 11-8] NOT electric superchargers

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Originally posted by Ghettoraid
s/c would be a whole helluva lot simpler and easy to troubleshoot than a turbocharger...
Ah, youth. :rolleyes:
turbo you have to worry about keeping everything tightened down from the exhaust-> exhaust turbine...
"Torque-to-spec" seems to pretty much hold things together.
plus you dont need to clog engine bay up with intercooler piping...
No, you just have to clog it up with a blower, and feed the engine hot air.
plus it LOOKS more stock than a turbocharger.... I think a cop could be fooled...
A cop, perhaps- IF you even lift the hood for them. But smog? That's what's called "dickindabutt" time.
these things are probably carb legal/have EO number...!!
Only for the original manufacturer's application. Not for hotrodding.

But I'm glad to see Knight's FINALLY coming around to DSMs, only about a decade late.
 
Originally posted by Mystic511
Since superchargers work off the power your car already makes and turbochargers work off a powersource that's being expended by your engine anyway, I feel personally that it wouldn't be in your best interest to supercharge a car. Especially since we're four cylinders and you'll be robbing low end torque from yourself to power the supercharger.

I can see where people get the idea that low end torque may be effected by a supercharger because it's running from a belt, however consider this:

A supercharger is not like a turbocharger. A turbocharger is centrifugal meaning it uses blades to move air, but can spin freely and do nothing at low speeds causing no pressure at all. A supercharger is a positive displacement blower (well that one is anyways there are centrifugal superchargers like Vortech but that’s another discussion). This means that it pushes air through with lobes that roll together, compress the air and forces it out. You could put your hand over the outlet of a turbo charger at low speed and the turbo would just continue to spin. A supercharger even at low speed would build up pressure until your hand blew off. That is what positive displacement means. It forces air through no matter what.

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So what does this mean? Well here's the thing about superchargers. Because they are a positive displacement which means they don't need to spool they provide boost at very low RPM ranges. Most superchargers see 2-3psi of boost by 1500rpm and are providing 5-6psi of boost by 2200-2300rpm. This gives HUGE low end torque numbers and provides a lot of low end power. This is why they are so popular in OEM applications because they give people power where they use it most. For the general public that’s 1500-3000rpm where the motor operates most often.

Another thing about a positive displacement supercharger is that it does not need to spool up like a turbo. If your driving part throttle at 3000rpm your getting 5psi of boost however with no load on the engine the supercharger is not working very hard to keep it there. Superchargers have a blow off valve system built inside of them which allows them to build a particular pressure and keep it there, the same way a wastegate works on a turbocharged engine. So when you mash the throttle in a supercharged car you have instant boost, no spool no waiting. Just instant forced induction power.

The problem with a supercharged car is making more boost is hard because you have to change the wheel and generally force the supercharger to operate outside of it's "comfort zone" by making it spin faster. This is also harder on the supercharger and causes it to heat the air up a lot more and the unit will wear up quicker. Another major problems associated with a supercharger is the belt. A lot of times the belts will slip and squeal under the hood instead of spinning the supercharger. To little tension causes squeal, to much tension wears out the bearings on the charger. On cars with a rubber mounted outside section on the crank pulley you can actually cause it to rip in two with too much pressure.

Hope that helps. Hey, and if I’m a little off on one part please don’t bite my head off, I’m not a supercharger guy so don’t kill me on the details.
 
Originally posted by TimG

A supercharger is basically a turbocharger, but it uses a pully to turn the intake compresser wheel, not an exhaust turbine.

thats funny cause this is THE definition of a turbocharger and it's kinda funny....straight outa websters"A supercharger that uses an exhaust-driven turbine to maintain air-intake pressure especially in high-altitude aircraft. Also called turbocharger."

check this thread for a different S/C
http://www.dsmtuners.com/forums/showthread.php?s=&threadid=105375
 
I stumbled across this picture of a super charger on an avenger. I don't know where to get it, but it looks a hell of a lot better than that thing.
 

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It was custom made.

The guy had a lot of issues with it and ended up taking it off. Snapping belts or something along that line (I think).
 
anyone ever supercharge a 90 eclipse n/t? and not those cheap electric ones either.
 
takes hp to make hp when it comes to superchargers, no point in doin that. turbos are the way to go.
 

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I mean really? Big power with no lag? Isn't it worth the try? When i look at the guys on the mustang cobra boards with the kenne belle upgrades running 24 lbs and having 700 lbs tq available at 2k, I think wow if only I could have half of that in my all wheel drive dsm it would be so fuggin sweet. The hp goes straight up too with out any flat spots or bends or surges or spikes. Is there any one, any where out there who has successfully accomplished this, come close, or even thought about it really hard? Any feed back other than turbo's are better is much appreciated, although I'm sure there will be some who can not control them selves. Thanks a bunch guys.



Again i dont want this to become a turbo vs super charger thread mods please close this thread if it does.
 
Sure, it's POSSIBLE (theoretically). It's simply easier to upgrade the existing system, than swap in a supercharger.
 
Super chargers use power to make power. They also arent as tuneable as a turbo. Turbos are way better suited for our small engines anyway. They are the same thing anyway, one is belt driven the other exhaust. Dont see any benefit to spending the time and money converting a dsm to supercharger setup.

Of course im 99.9% sure its been done somewhere by someone and is very possible. Just not common at all.
 
This is not a thread about your opinion on suprchargers or your opinion on it's applications, wich so far all happen to differ from my own. I am very well informed about the way both systems work, and the up falls and down falls of BOTH systems. This thread is intended to help locate any info there might be about the process, expenses, and outcome of a actual superchrged 4g63, not for hypothetical discussions. Sorry to be so harsh, really not a deuschbag, but every thread about this always turns out this way so i am tryen to keep it on the topic of finding out some concrete information.
 
Call up Jackson Racing Superchargers or Vortech and see what they can do.
 
14.5 drift said:
This is not a thread about your opinion on suprchargers or your opinion on it's applications, wich so far all happen to differ from my own. I am very well informed about the way both systems work, and the up falls and down falls of BOTH systems. This thread is intended to help locate any info there might be about the process, expenses, and outcome of a actual superchrged 4g63, not for hypothetical discussions. Sorry to be so harsh, really not a deuschbag, but every thread about this always turns out this way so i am tryen to keep it on the topic of finding out some concrete information.

I haven't heard of it being done. Hence why there is no empirical data for you to research on the subject.
 
Of course supercharging is possible. However, much like a simple searching of topics on this board, it's almost never done :rolleyes:

Compared to turbocharging, supercharging is usually more expensive, heavier, puts a greater stress load on the engine and its internals, is less efficient, and really rather pointless when the manufacturer of your car has already gone to the effort of making a turbocharged version.

In a DSM, you will have serious space considerations hampering the idea as well.
 
98RedGs said:
Searching isn't a village in Tokyo... it's a function at the top of the webpage.

one time...this lady at a restraunt said "Tipping isn't a city in china." so we only tipped her like 75 cents for being a snobby little *bleep* because she was treating us like crap just because we are teenagers :thumbdown .....

Anyways,

yeah, it sounds like a good project if you have the time and money but its pretty pointless since the cars are turbo to begin with..which is way more efficient and tuneable.
 
anythings possible if your willing to put the time/effort/money into it. I'm sure it can be done. It's just that turbo is better for our engines so people don't really bother supercharging it.
 
Defiant said:
Of course supercharging is possible. However, much like a simple searching of topics on this board, it's almost never done :rolleyes:

Compared to turbocharging, supercharging is usually more expensive, heavier, puts a greater stress load on the engine and its internals, is less efficient, and really rather pointless when the manufacturer of your car has already gone to the effort of making a turbocharged version.

In a DSM, you will have serious space considerations hampering the idea as well.

Basically what I was trying to say, but with more words.
 
I have never seen a bolt on supercharger for the 4g63. I guess when a motor has a turbo version there is really no point to make a supercharger for it right? I mean the project will have to be completely custom and thats going to cost some $$. I don't think it is worth it. If they never made a turbo version of the 4g63 then i think the supercharger would be worth the effort.
 
If Turbo kits were less expensive for mustangs, they would be more popular than superchargers because they are more efficient, provide much more torque, and do not take hp to produce hp.
 
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