What power will the 5AT take

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What power will the 5AT take

Postby jeffas4966 » Fri Aug 27, 2010 2:59 pm

Hi Guys,
I have the semi auto TBSTI wagon and am thinking definately a 3" exhaust and possibly a slightly bigger turbo. I see the gearbox as the limiting factor and was wondering if anyone had a recommended Max power figure
Last edited by jeffas4966 on Sat Aug 28, 2010 10:26 am, edited 1 time in total.
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Re: What power will the 5AT take

Postby senator » Fri Aug 27, 2010 3:08 pm

not sure if any auto's have gone an aftermarket turbo...... yet.

what are your plans for the car? tracking, draging etc etc
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Re: What power will the 5AT take

Postby Arith » Fri Aug 27, 2010 3:30 pm

senator wrote:not sure if any auto's have gone an aftermarket turbo...... yet.

Well, not the 2.5T. But on the 2.0T you had swingn, Louey, and libsti.

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Re: What power will the 5AT take

Postby swingn » Fri Aug 27, 2010 3:47 pm

The EJ25T Liberty's have a slightly upgraded 5sp auto when compared with the EJ20T Liberty's (Revised torque converter I believe).

Anything around the 300hp mark (223.71 kw) at the wheels & you'll be sweet... Mind you, to get there is not an easy task & you'll be looking at:

New Turbo
New TMIC or FMIC
Fuel System upgrades
TBE

& the list goes on...

From what I've heard, the auto boxes have been able to handle around the 250kw ATW's... But the torque converter really doesn't like it & will be pretty sloppy on the gear changes. That being said, that was in the EJ20T Lib, so with the revise torque converter in the newer models, you may be ok... Only one way to find out ;)
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Re: What power will the 5AT take

Postby tangcla » Fri Aug 27, 2010 3:53 pm

About 200-220awkw, that's what I was told.
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Re: What power will the 5AT take

Postby senator » Fri Aug 27, 2010 4:06 pm

Arith wrote:
senator wrote:not sure if any auto's have gone an aftermarket turbo...... yet.

Well, not the 2.5T. But on the 2.0T you had swingn, Louey, and libsti.



different box Jim. The EJ2.0T would hold gears unlike the box used ej25t
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Re: What power will the 5AT take

Postby swingn » Fri Aug 27, 2010 4:50 pm

^^^ Pretty sure that's more of a computer thing... Just like the throttle blip on down shifting the in face lifted 3RB.

Of course... I could be wrong :P Modified EJ20T Libs are much more common due to the manuals limited availability in the Pre-face lift Gen 4's.
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Re: What power will the 5AT take

Postby SillySora » Fri Aug 27, 2010 10:29 pm

Can take a good beating. Pretty tough gear box.

If you want a avo 450 will sell my cheap good for 235 @ 18psi.

I'm going to be looking at around 300kw now.
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Re: What power will the 5AT take

Postby jeffas4966 » Sat Aug 28, 2010 10:21 am

Thanks Guys,
Low 200's is all I am really after so I am happy as this is our daily driver.
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