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  #1  
Old 02-17-2012, 12:14 AM
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Transmission if going supercharger

Hello,

the information I request is probably around already but it's always a bit difficult to search for. Also, the level of activity isn't very intensive on the forum, so I thought you might not mind that I ask questions that could be answered by hours of searching by myself.

An axe has come up locally and it's 99% likely a VTD. The price seems right according to the condition as far as I can judge and the car has been registered for 10+ years (it's a 1997) which means I can increase effect without paying extra!

I see that quite a few people have gone down supercharger lane, so I assume there's enough info around for a good tuner to help me out with that kind of project. The question is: How much power can the 4EAT safely handle? The seller has stated that the unit got overhauled very recently. Not sure yet if it broke down or just needed a good pounding.

Did anyone ever successfully go turbo and live to tell about it?

Is there a proper how-to on supercharger? I can't recall seeing one in the How-To section.

Thanks!
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  #2  
Old 02-17-2012, 12:33 AM
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Wikedjuggalo Wikedjuggalo is offline
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Re: Transmission if going supercharger

Short answer, go manual. 4EAT already has issues with the SVX adding power won't help.

There is no proper how to for supercharger as far as I remember because its a majority custom job. There are no kits or bolt on parts.
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  #3  
Old 02-17-2012, 12:46 AM
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Re: Transmission if going supercharger

Thanks! Another question to the whole supercharger issue.. how much power can you actually gain by adding a moderate one rather than an all-in affair? Is reprogramming the ECU a necessity if an SC is added?

Teh reason I ask is simply because the car needs to be approved by authorieties (= TÜV compliance). There a are a number of rules governing this and the good tuners always tell me to come back when I actually have the car (by mail, I could call them).
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  #4  
Old 02-17-2012, 05:20 AM
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Re: Transmission if going supercharger

I believe SVX files is running a supercharger with a 4.44 auto tranny.
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  #5  
Old 02-17-2012, 06:10 AM
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Re: Transmission if going supercharger

The style of supercharger you use and the er, driving style you plan to use it with are very significant factors!
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  #6  
Old 02-17-2012, 11:06 AM
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Re: Transmission if going supercharger

Quote:
Originally Posted by Sean486 View Post
I believe SVX files is running a supercharger with a 4.44 auto tranny.
He does, but I also believe he has upgraded some of the internal parts if I am not mistaken.
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  #7  
Old 02-17-2012, 01:27 PM
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Re: Transmission if going supercharger

So there is actually no rule of thumb, say, the 4EAT can handle 300bph or 260bph or 350bhp?

Obviously, I'm not going to do any swap until the transmission breaks down. The center diff, some oil valves and clutch plates where replaced by Subaru techs in december so it might actually live for a while.. unless that was the beginning of the end. Then I think a 5MT STI box could be a good swap as I do prefer manual to automatic.
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  #8  
Old 03-17-2012, 07:14 PM
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Re: Transmission if going supercharger

SVXfiles has an auto tranny which (if i remember right) does 0-60 in 5...that's very good IMO
I don't know how long it can survive though
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  #9  
Old 03-17-2012, 07:32 PM
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Re: Transmission if going supercharger

Quote:
Originally Posted by david_12121 View Post
SVXfiles has an auto tranny which (if i remember right) does 0-60 in 5...that's very good IMO
I don't know how long it can survive though
Still kicken a$$!
With any luck come this Reading we can go to the track.
She should be 10 psi on stock internals.
If I can get Jade done by Reading then She will run as well.
Does anyone have 370cc injectors for sale/
Or a set of pistons for cheap?
Maybe someone here wants a set of forged rods?
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the first equal length headers,
the first phenolic spacers,
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Fiberglass Hood thread
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4.44 Swap link

Last edited by svxfiles; 03-17-2012 at 08:12 PM. Reason: D'oh!
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  #10  
Old 03-17-2012, 08:00 PM
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Re: Transmission if going supercharger

Quote:
Originally Posted by svxfiles View Post
Still kicken a$$!
With any luck come this Reading we can go to the track.
She should be 10 psi on stock internals.
If I can get Jade done by Reading then She will run as well.
Does anyone have 270cc injectors for sale/
Or a set of pistons for cheap?
Maybe someone here wants a set of forged rods?
You mean 370ccs? I have 3

Stock pistons or aftermarket?
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  #11  
Old 03-17-2012, 08:11 PM
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Re: Transmission if going supercharger

Quote:
Originally Posted by icingdeath88 View Post
You mean 370ccs? I have 3
Stock pistons or aftermarket?
I would LOVE a set of aftermarket pistons, but they are not exactly in the budget,
Unless they are dirt cheap.

As to the injectors, what color,
3O17O72837
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The first SuperCharged SVX,
the first 4.44 gears,
the first equal length headers,
the first phenolic spacers,
the first Class Glass fiberglass hood,
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Fiberglass Hood thread
My locker
4.44 Swap link
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  #12  
Old 03-17-2012, 08:20 PM
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Re: Transmission if going supercharger

Do you want them to go with the ecutune setup?
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'94 Laguna Blue LSi ~159k.......JDM ultra short-geared 3.900 STi Version 7 6-speed w/ Cobb shortshifter, ECUtune 244,8.1mm/256,9.1mm i/e cams, group N motor mounts, '97 grille, JDM clear corners, Momo JDM Legacy GT steering wheel, apkarian's LED tails, silver STi BBS wheels, PWR radiator, redstuff pads f/r, drilled/slotted rotors, bontragerworks rsb #18, Koni/GC 450f/375r coilovers, Megan Racing adjustable lateral links, KMac c/c plates, Stebro exhaust, ECUtune 1v5, Optima battery in the trunk where it belongs. Turbo project

'97 Ebony LSi ~137k #036.......Power mode mod, JDM clear corners, BBS wheels. AUX/pocket mod

Now a mod "over there" ............Photo album
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  #13  
Old 03-17-2012, 08:48 PM
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Re: Transmission if going supercharger

OT, you won't have to worry about dirt cheap if you help me out with getting a 4.44 put in my pearly.
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  #14  
Old 03-17-2012, 08:56 PM
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Re: Transmission if going supercharger

Quote:
Originally Posted by icingdeath88 View Post
Do you want them to go with the ecutune setup?
Absolutely!
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The first SuperCharged SVX,
the first 4.44 gears,
the first equal length headers,
the first phenolic spacers,
the first Class Glass fiberglass hood,
the first with 4, 4.44s in his driveway


Fiberglass Hood thread
My locker
4.44 Swap link
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  #15  
Old 03-17-2012, 08:57 PM
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Re: Transmission if going supercharger

Quote:
Originally Posted by Freeman View Post
OT, you won't have to worry about dirt cheap if you help me out with getting a 4.44 put in my pearly.
Whenever you are ready.
PS, Did you go out on twisties yet?
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The first SuperCharged SVX,
the first 4.44 gears,
the first equal length headers,
the first phenolic spacers,
the first Class Glass fiberglass hood,
the first with 4, 4.44s in his driveway


Fiberglass Hood thread
My locker
4.44 Swap link
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