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#16
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Ok cool so it still has dual intakes right?
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1993 25th Anniversary Edition # 156 of 301 ~ 121, 488 miles ( SOLD TO svxfiles 8/6/06) 2006 Subaru Impreza 2.5i....5spd - My daily driver 2006 Subaru Legacy 2.5i -7k miles..Mom's daily driver 2,543 Member of the SVX World Network |
#17
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Dual intake pipes, yes.. but only one intake. They love to overcomplicate things like here where they added a second pipe. I drew a picture to hopefully clear it up for you.
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Brian |
#18
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ohhh ok gotcha. Thanks for the drawing....i would have known if i had removed his plastic shield on top of the engine. That damn thing there confused the hell out of me since i saw two pipes.
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1993 25th Anniversary Edition # 156 of 301 ~ 121, 488 miles ( SOLD TO svxfiles 8/6/06) 2006 Subaru Impreza 2.5i....5spd - My daily driver 2006 Subaru Legacy 2.5i -7k miles..Mom's daily driver 2,543 Member of the SVX World Network |
#19
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How can you not know the difference between a turbo and a Super charger?
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1989 Subaru XT6 130k 1992 Subaru SVX 120k 1993 Ford Probe 30mpg 213k 1989 Subaru XT6 150k All good and running |
#20
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because he is teh King of teh N00bs! also.... Quote:
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Alan 1987 928 S4 (Black) SOLD! 1997 SVX LSi (Ebony) SOLD! 2005 Legacy GT (Silver) [Cobb Stg 2+] SOLD! 1987 928 S4 (Black) SOLD! 2005 Forester XT Premium (Crystal Gray Metallic) SOLD! 2008 Lancer Evolution X MR (Apex Silver) [Cobb Stg 1+] 2015 Outlander Sport 2.4GT AWD (Mercury Gray) 2013 G37xS (Obsidian Black) |
#21
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Yeah that would be setup like the single turbo design, both being on the pipe where all 6 exhaust pipes meet. Not worth it unless you have a bajillion dollars burning a hole in your pocket.
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Brian |
#22
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The fuel consumption is the same for both, as long as they are driven the same. Quote "Gains power from exhaust gas and not directly from the engine, hence the engine is gaining without a loss." Quote. The old saying " you get nothing for nothing". The turbo does consume power from the engine. To fit the turbo, the existing exhaust system has to be removed and replaced with a short system to power the turbo. So the power that the factory exhaust provided is now lost. The low speed Inertia is not there, or the high speed resonate system is not there. So this must be considered as power taken to drive the turbo. The other differences are the supercharger has a cooler air output than the turbo, that suffers from heat transference from the turbine side to the compressor side. The supercharger provides boost at low rpms, but is inefficient above 1.5 atmos boost. The turbo provides little boost below 2500/3000, but can produce boosts in excess of 1.5 atmos. Harvey.
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One Arm Bloke. Tell it like it is! 95 Lsi. Bordeaux Pearl, Aust. RHD.149,000Kls Subaru BBS wheels. 97 Liberty GX Auto sedan. 320,000Kls. 04 Liberty 30R Auto Premium. 92.000kls. |
#23
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We have all been schooled by Harvey.....I feel so blessed
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1993 25th Anniversary Edition # 156 of 301 ~ 121, 488 miles ( SOLD TO svxfiles 8/6/06) 2006 Subaru Impreza 2.5i....5spd - My daily driver 2006 Subaru Legacy 2.5i -7k miles..Mom's daily driver 2,543 Member of the SVX World Network |
#24
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Just to throw in a few of my comments in the debate, coming from an STi with tuning and lots of time to mess around with engines.
1. Check out the "how things work" web site (http://auto.howstuffworks.com/supercharger.htm and http://auto.howstuffworks.com/turbo.htm) for info on turbos and superchargers, but the info is a bit dated. There are lots of books out there, too, for the truly interested. I've collected most of the more popular ones, so I can give you thumbs up or down before you buy. First lesson - a turbo is a type of supercharger. The complete term is a "Turbo-supercharger." However, I like lots of folks use the term "supercharger" (sc) to mean a non-exhaust driven forced induction system. 2. Keep in mind that there are two types of (non-turbo) superchargers, centrifugal and positive displacement-type (roots, screw, etc.) They are different in applications, and some of what was mentioned earlier only applies to one or the other. 3. The biggest differences in output between a turbo and a sc is efficiency. A mild to good turbo will return a 80% return on power increase (100% being double the power of a non-forced induction engine, all things being equal), while even the best supercharger rarely gets over 50%, though this generally applies to positive displacement-type which is the most common on commercial vehicles. 4. Also, the boost curve is very different because the rotation of the supercharger is directly in proportion to the speed of the engine. For instance, a "properly" tuned supercharger will get the most boost at the highest engine rpm, while a turbo can make peak boost long before redline. And yes, turbos lag, but proper tuning and design engineering can minimize the lag. 5. Finally, another difference is cost. Generally, a turbo system with a customized exhaust, tubing, intercooler, and LOTS of install time will far exceed the cost of a simple supercharger. The SVX is a little unique, but on other cars a complete single turbo will cost roughly twice what a supercharger will run when all is said and done... Last edited by hayasa; 03-21-2006 at 10:18 AM. |
#25
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Yes, you can build an engine with dual superchargers. Centrifugal superchargers are basically belt-driven turbochargers.
I've seen a Chevy V-8 set up with a pair centrifugal superchargers. He had port fuel injection and the intake runners were completely seperated for the two banks of the engine with each supercharger independantly feeding it's four cylinders. This was back in the late '70's or early '80's. Although the plumbing was neat, as far as I can remember the port fuel injection was what intrigued me the most at the time. All superchargers 'use' a lot more than 5 HP . . . Think of SilverSpear's comment about turning on your AC, multiply that by quite a bit. The difference with a supercharger is that it's making more power than it's using. Dan Last edited by intelisevil; 03-21-2006 at 09:34 PM. |
#26
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After all This Tech Info. You Might look into turbo lag and misfiring turbos. Just to complete it. Might as well
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#27
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Danny 1994 Silver SVX in hybernation, awaiting for the monsterous awakening (Lebanon) 1967 Mercedes-Benz 250SL Euro Specs, Hard/Softtop, White/Red. Under Complete Restoration 2013 Mercedes-Benz SL350 Euro Specs, White/Red. Mint... Another step into SL Collection. |
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