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Old 07-07-2012, 03:39 AM   #1
ahausheer
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Why does the aftermarket love turbos? Why not superchargers?

Why does the aftermarket for imports focus so much on turbos? Wouldn't a supercharger be better? I want low end torque for a nice street feeling, not a peaky non linear power band. Seems like a SC has less parts and is more reliable as well.
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Old 07-07-2012, 04:12 AM   #2
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I've always liked how turbo uses the exhaust to spool not .. other than that don't see any other big reason why turbo > SC.
Not to mention SC is good for all around rpm ranges :X
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Old 07-07-2012, 04:18 AM   #3
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is HKS the only company that has SC??
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Old 07-07-2012, 07:32 AM   #4
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I prefer turbochargers just like most aftermarket and even OEM's, particularly on small displacement engines.

There are many reasons why and instead of listing them I will simply point you toward the countless number of pages on the web that discuss this particular issue.
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Old 07-07-2012, 09:45 AM   #5
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There are probably five reliable turbo setups for every one SC application. Popularity, engineering, tuning, and results (and price, as always) make a turbo route more likely in many tuner markets today. I cant think of any OEM that is known to solely focus on SCs, but when you look at Subaru: turbos are the way to go. Given the proper application, nearly all desired results can be achieved without too much compromise. Tons of reasons though.
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Old 07-07-2012, 10:53 AM   #6
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Superchargers tend to put stress on the engine via a pulley-- that is something i don't prefer. (I'm not implying a turbo puts no stress on the engine)Also, superchargers ran on the track heat-soak themselves into HP loss. It has been noticed strongly in SuperCharged Corvettes-- after a few laps, the charger is so hot the HP gain lowers considerably. Also, with little 4 cylinders, Turbo is usually the better way to go. V6s and V8s do very well with SCs. There is a 65' Mustang in the SCCA with a turbo and is a pretty wicked set-up, however.

Those are my main reasons. I would consider a SC if i had a well-ventilated engine bay and/or V6/V8.
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Old 07-07-2012, 01:25 PM   #7
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TRD does superchargers and there are other OEMS as well. However, OEMs like turbos because of they are better for MPG sake compared to superchargers and there is massive pressure for good MPG's. I am teaching myself about the various FI methods and turbos seem the worst, although to be honest I have only ever driven a car with a Turbo. The appeal of a SC is its simplicity, reliability, and low end power/torque. What are the downsides other than the above mentioned heat soak.

Also I have searched the internet and I even bought a book on street supercharging. All of my research suggests SC are better. Why else would TRD use a SC? Surely Toyota can do no wrong.
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Old 07-07-2012, 01:38 PM   #8
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Simple: Turbo spool sounds sexier
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Old 07-07-2012, 02:28 PM   #9
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Figuring out sizing and packaging (intercoolers with positive displacementSCs) is more complicated.
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Old 07-07-2012, 02:28 PM   #10
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what's your basis? I think it depends on the platform really
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Old 07-07-2012, 02:35 PM   #11
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i think its because the consumer market loves the psssht psssht bov noises
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Old 07-07-2012, 02:56 PM   #12
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With a turbo you don't have to worry about mechanical mounting issues as much.
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Old 07-07-2012, 03:13 PM   #13
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Looking at it simplified... an inefficient turbo system will be more efficient than an efficient supercharged system. Of course, there will and are some that break that rule, but by in large that statement holds true.
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Old 07-07-2012, 04:30 PM   #14
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Quote:
Originally Posted by ahausheer View Post
TRD does superchargers and there are other OEMS as well. However, OEMs like turbos because of they are better for MPG sake compared to superchargers and there is massive pressure for good MPG's. I am teaching myself about the various FI methods and turbos seem the worst, although to be honest I have only ever driven a car with a Turbo. The appeal of a SC is its simplicity, reliability, and low end power/torque. What are the downsides other than the above mentioned heat soak.

Also I have searched the internet and I even bought a book on street supercharging. All of my research suggests SC are better. Why else would TRD use a SC? Surely Toyota can do no wrong.
Putting heat-soak aside, I think it would basically come down to personal preference and what type of power you're looking for-- low end grunt or mid to top-end speed.
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