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Scion tC 1G Forced Induction Turbo and supercharger applications...

Going from supercharged to stock engine

Old Apr 17, 2012 | 06:48 PM
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Default Going from supercharged to stock engine

The bearings on my supercharger are shot. Would it be easier/cheaper to do a rebuild or just get rid of the supercharger all together and take my engine back to stock??
Old Apr 17, 2012 | 08:44 PM
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If you have all stock parts or parts necessary to bring back to stock then that would be the cheaper route.
Old Apr 17, 2012 | 10:07 PM
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Do you know what specific parts I would need?
Old Apr 17, 2012 | 10:12 PM
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Let me know if u part out our supercharger.
Old Apr 17, 2012 | 11:29 PM
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Originally Posted by karinemh
Do you know what specific parts I would need?
Have you taken the supercharger off? I'm assuming you mean completely stock.

If so, off the top of my head, you would need the stock air box and tubing, stock oil pan, stock oil dipstick, stock pulley, stock size belt, stock fuel injectors, stock spark plugs or similar, stock ecu. On top of those you would need all the necessary hardware to mount everything back on.

When the charger was installed you should have been given all the parts that were taken off so all you need to do is put those back on.
Old Apr 24, 2012 | 12:02 AM
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I bought the car with the blower already put on so I have no factory parts.

After looking closer at what exactly failed, the bearings at the end of the shaft failed which locked up the shaft and caused the shaft and belt to snap.

So I guess my real question is, is it going to be easier and/or cheaper to gather all the stock parts and turn it back to stock or gather parts and go with a turbo?

Why a stock oil pan? I understand it is plumbed for a blower but can't you just plug and cap the lines? And what "stock pulley" are you talking about?
Old Apr 24, 2012 | 01:06 AM
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Originally Posted by karinemh
The bearings on my supercharger are shot. Would it be easier/cheaper to do a rebuild or just get rid of the supercharger all together and take my engine back to stock??
One of my friends went back to stock and he paid 8 to 900 dollars for the stock parts and install. But he sold the s/c to make up for it. It would probably be around the same price if you rebuild it with better bearings.





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Old Apr 24, 2012 | 02:05 AM
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just rebuild it, keep your hp levels.
Old Apr 24, 2012 | 02:19 AM
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I know an upgraded shaft and a bearing kit runs around $800 minus labor. Are the stock parts really worth that much?
Old Apr 24, 2012 | 03:13 AM
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are you auto or manual trans, if your auto ill swap you stock parts for it or buy it off your hands
Old Apr 24, 2012 | 03:39 AM
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Manual
Old Apr 24, 2012 | 05:36 AM
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Originally Posted by karinemh
I bought the car with the blower already put on so I have no factory parts.

After looking closer at what exactly failed, the bearings at the end of the shaft failed which locked up the shaft and caused the shaft and belt to snap.

So I guess my real question is, is it going to be easier and/or cheaper to gather all the stock parts and turn it back to stock or gather parts and go with a turbo?

Why a stock oil pan? I understand it is plumbed for a blower but can't you just plug and cap the lines? And what "stock pulley" are you talking about?
You should just rebuild it yourself. Gathering the stock parts will probably be more of a hassle. As for the the turbo set-up that will cause you more grief and money.

"Gompka" on here makes very good shafts (so I've heard) and it comes with new bearings as well. I believe it was priced around 500 for a group buy. The supercharger belt you can just order again for cheap (it's the Gates K070890 Multi V-Groove Belt).

The stock oil pan is needed for a stock set-up because it is smaller than the one installed when supercharged. If you have the bigger one you will be running more oil and run the chance of flooding your motor.

As for the "stock pulley," I'm not sure if the previous owner upgraded the stock pulley to an aftermarket pulley but if he/she did you would need the stock sized one. If he/she didn't then you don't need to worry about it.
Old Apr 24, 2012 | 05:37 AM
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Note: If the supercharger pulley is stock size then the belt you need would be the "Dayco 7PK2325"
Old Apr 24, 2012 | 09:45 PM
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The stock oil pan is needed for a stock set-up because it is smaller than the one installed when supercharged. If you have the bigger one you will be running more oil and run the chance of flooding your motor.
.[/QUOTE]

I got a question lol. I have stock oil pan tapped ( I think its the stock one not the one that comes with the kit)with stock dip stick how much oil should the dip stick show. Full or a lil over full. Since it's stock dip stick. I just been keeping it at full. But don't sound right.



And yea thats what the dealer charged him I'm sure you can go into a junk yard and find stock parts cheap.or on hea in the classifieds And install them your self. Not hard. It'll be alot cheaper. sell the supercharger and you'll make your money back. If you don't want it that is.




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Old Apr 24, 2012 | 11:51 PM
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And how much bigger is a stock pan compared to the pan that comes in the TRD kit? Does anybody have any pictures that proves this? Or is it one of those he says/she says myths?

I ask because if you buy a vortech for any other car you won't get an oil pan. In fact the instructions don't even say anything about running any extra oil. The instructions tell you to punch a hole in the side of your oil pan, no joke, using a small punch while gradually getting bigger to fit I want to say a 1/4" pipe fitting, tap that hole with a tap covered in grease to catch the majority of the metal shavings, change your oil, and you're ready to go. Seems sketchy, but it works great. You get 4-6 threads if you do it right.

Just seems silly to me why the pans would be that much different, minus an oil return from the blower.
Old Apr 25, 2012 | 06:23 AM
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Originally Posted by scion86
The stock oil pan is needed for a stock set-up because it is smaller than the one installed when supercharged. If you have the bigger one you will be running more oil and run the chance of flooding your motor.
.
I got a question lol. I have stock oil pan tapped ( I think its the stock one not the one that comes with the kit)with stock dip stick how much oil should the dip stick show. Full or a lil over full. Since it's stock dip stick. I just been keeping it at full. But don't sound right.



And yea thats what the dealer charged him I'm sure you can go into a junk yard and find stock parts cheap.or on hea in the classifieds And install them your self. Not hard. It'll be alot cheaper. sell the supercharger and you'll make your money back. If you don't want it that is.




Sent from my HTC Glacier using Tapatalk[/QUOTE]

I'm not sure what you mean. Are you saying that you are supercharged and you have a stock tapped oil pan?
Old Apr 25, 2012 | 06:48 AM
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Originally Posted by karinemh
And how much bigger is a stock pan compared to the pan that comes in the TRD kit? Does anybody have any pictures that proves this? Or is it one of those he says/she says myths?

I ask because if you buy a vortech for any other car you won't get an oil pan. In fact the instructions don't even say anything about running any extra oil. The instructions tell you to punch a hole in the side of your oil pan, no joke, using a small punch while gradually getting bigger to fit I want to say a 1/4" pipe fitting, tap that hole with a tap covered in grease to catch the majority of the metal shavings, change your oil, and you're ready to go. Seems sketchy, but it works great. You get 4-6 threads if you do it right.

Just seems silly to me why the pans would be that much different, minus an oil return from the blower.
Per the owner's manual, a stock oil pan holds (approximately): Oil Capacity - with filter 3.8L(4.0qt) - without filter 3.6L(3.8qt)

Per the Supercharger install instructions,the TRD oil pan holds (approximately): 4.0qt-4.8qt with filter and it come's pre-tapped.

The increase in oil pan size allows more oil to be stored and used. After the supercharger is installed, oil is used for the motor and the charger. The stock one was made for only the motor. The trd one was made to feed both the motor and the charger.
Old Apr 25, 2012 | 09:52 AM
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[QUOTE=rs2

I'm not sure what you mean. Are you saying that you are supercharged and you have a stock tapped oil pan?[/QUOTE]

yea stock oil pan and dip stick.
Idk if there is a diffrence in the dip stick . what should it read full or Lil over full.



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Last edited by scion86; Apr 25, 2012 at 11:15 AM.
Old Apr 25, 2012 | 12:44 PM
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After rebuild it with new bearing, it only last me another year. Costed me $1000 for stock parts, and $500 labor to went to stock. I am tired of SC.
Old Apr 25, 2012 | 04:20 PM
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Originally Posted by GammaTNT
After rebuild it with new bearing, it only last me another year. Costed me $1000 for stock parts, and $500 labor to went to stock. I am tired of SC.

Which rebuild kit did you use for your sc the one off of superchargerscions.com or the one from gompka?

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