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Supercharged Evo??

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Old Oct 21, 2015 | 12:59 PM
  #46  
SVPxTuRbO's Avatar
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Welp, don't know if anyone followed up with this yet but apparently Garage G-force did it





here's the article

http://www.superstreetonline.com/fea...i-evolution-x/
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Icecruncher (Aug 25, 2019)
Old Aug 23, 2019 | 07:25 PM
  #47  
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Superchargers are a few hundred dollars not a few thousand and you get instant power. I would love to get the drivability of a big high performance V8 in my engine. It's like saying that McClaren using an electric motor to get rid of turbo lag is a waste of money and time. No more high rpm launching, no more waiting for the revs to get up around corners and so on. VW does it because it is worth it. Plus anyone with an Evo minivan station wagon should be able to pull a trailer.
Old Aug 25, 2019 | 07:01 AM
  #48  
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Originally Posted by Icecruncher
Superchargers are a few hundred dollars not a few thousand and you get instant power. I would love to get the drivability of a big high performance V8 in my engine. It's like saying that McClaren using an electric motor to get rid of turbo lag is a waste of money and time. No more high rpm launching, no more waiting for the revs to get up around corners and so on. VW does it because it is worth it. Plus anyone with an Evo minivan station wagon should be able to pull a trailer.
Good luck finding a supercharger that is going to work on an Evo for a few hundred dollars. Its not like you can just go to a junkyard and pull one off a car and directly bolt it on to and evo and go about your day. If you wanna get rid of turbo lag that bad there is an easier and much cheaper solution. Its called Nitrous.
Old Aug 25, 2019 | 11:42 PM
  #49  
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Why use a turbo at all then? Why not just install a small block V8 and save money. There are lots of various universal type very small superchargers for under $500 brand new. From what I remember I saw one for $200 when I was looking for one for my Jetta. People who do not innovate, create something new and so on usually because they do not know how always say just use nitrous oxide and they used to say just install a V8.

Let's break it down and try to figure out how to make one work. You will need:

#1. A supercharger that has an inlet and an outlet that can be connected to piping, not your traditional supercharger that sits on top of a carb or throttle body. Maybe the supercharger that VW uses on their transverse 2.0 engine along with a turbo would work.

#2. A shaft with a pully wheel that extends far enough to reach the other engine pullies.

3# A timing belt that fits and mounting.

It really feels like I am missing something. What else is needed. I wonder what happens if you install the outlet of a turbo charger directly into the exhaust manifold to keep it spooled up. Please no one post, "search" or "install NOS". I could install an oxygen tank into my car and get more hp but I don't because it runs out.

Old Aug 26, 2019 | 07:25 AM
  #50  
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I have a stroked 342 SBF with a centrifugal supercharger so I can weigh in on this a little. You will need brackets to hold the supercharger, at best your going to have to delete the A/C to mount the SC. You will need a new crank pulley and tensioner mechanism to add the supercharger belt, the accessory belt will just slip and melt, its not sufficient to spin the SC to any kind of usable boost level. Most of the intercooler pipes would be reusable but a new LICP would need to be fabricated. You would need a new exhaust, or at least fab up a header that would mate to a stock location DP. Oiling should be pretty easy to adapt from the turbo setup.

So some things to consider here. Centrifugal superchargers don't have the low end that roots or twin screw superchargers do, they are more like a hybrid supercharger, using the same style of compressor as a turbo but a mechanical gearbox. Turbochargers make power by using wasted energy which makes them very efficient. Superchargers require HP to make HP so the engine has to make more HP to hit the same WHP number as a turbocharger. There is also more stress on the crank and main bearings with a supercharger because of the load the supercharger belt places on the front of the crank. The upside of the supercharger is instant response. The SC doesn't need to spool, its speed is a function of engine speed, so if your engine speed is sufficient to make boost, it will be there as soon as you ask for it. There are way more nuance to the difference between SC and Turbo, but I attempted to hit the main, high level things.

On the topic of how cheap you can get a SC for, well you get what you pay for, you can buy a chinese turbo off ebay for a few hundred bucks, but we all know why that's a bad idea for most people.
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Icecruncher (Aug 28, 2019)
Old Aug 26, 2019 | 09:05 AM
  #51  
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The only reason to supercharge an Evo is to bridge the throttle response of a big turbo. That's it. Twincharged Evos have been done a few times in some very serious cars (like the above picture), and it's done for a very specific purpose. The only supercharger worthwhile is the twin screw, since Eaton superchargers are meh, centrifigual superchargers are worse for response, and Rotrex have their own set of issues. Twin screw superchargers for the Honda K-series will make very impressive power, but the cost/benefit calculation of adapting one just isn't there for the average Evo'er. I thought about it because they would be good for my application, (they are ready to go from 2500 RPM and will make 400+ WHP), but a small EFR will do similar things, without the need to adapt the SC to the 4G63.
Old Aug 26, 2019 | 10:28 AM
  #52  
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reading fail on my part, I didn't realize this thread was about compound forced induction. Replacing the intake manifold with a twin screw setup would be pretty interesting, but probably not very cost efficient.
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