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#Which clutch to use in a Ej22t swap?

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 Post subject: Which clutch to use in a Ej22t swap?
PostPosted: Mon Feb 27, 2017 5:59 pm 
In Neutral
Joined: Mon Jan 30, 2017 7:32 pm
Posts: 10
Location: Carnation, Washington
Hey everyone, I'm doing an ej22t swap into a N/A 91 Legacy; and I know that SS's clutches are hydraulically operated. And my Clutch in the N/a is operated by a cable. So I'm asking to see if I should be getting a clutch to match the engine or trans? Plus any recommendations on a good quality clutch that can withstand the abuse of rallycross.


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 Post subject: Re: Which clutch to use in a Ej22t swap?
PostPosted: Mon Feb 27, 2017 6:36 pm 
Site Admin
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Location: Houston, Tx
Welcome to the BBS.

You need to get the clutch that matches to your transmission. You'd need to stick with the "push" style clutch release lever. They do make hydraulically actuated push style clutch setups. So if you wanted to upgrade you could. That might make upgrading to a stiffer pressure plate a little easier on your leg.

Are you planning to keep the power around stock levels or make it much higher?

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surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
1997 Impreza OBS

If you need to get a hold of me please email me rather then pm


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 Post subject: Re: Which clutch to use in a Ej22t swap?
PostPosted: Mon Feb 27, 2017 10:53 pm 
quasi-mod-o
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Joined: Wed May 30, 2007 6:11 am
Posts: 2755
Location: Charlotte, NC
What he said^^^^

Engine doesn't car what transmission is on the car, it just does the work and the tranny makes the wheels go round.

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90 LS Spec rio red sold
91 SS rio red R.I.P
90 Mazda Miata
2005 GT SWP

92ss satinsvoice wrote:
LOL! that block was like F*** THIS! IM OUT!

mike-tracy wrote:
Word. I'd love to get my hands on one of those trannies, but I just can't stomach the cost


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 Post subject: Re: Which clutch to use in a Ej22t swap?
PostPosted: Tue Feb 28, 2017 12:27 am 
In Neutral
Joined: Mon Jan 30, 2017 7:32 pm
Posts: 10
Location: Carnation, Washington
Legacy777 wrote:
Welcome to the BBS.

You need to get the clutch that matches to your transmission. You'd need to stick with the "push" style clutch release lever. They do make hydraulically actuated push style clutch setups. So if you wanted to upgrade you could. That might make upgrading to a stiffer pressure plate a little easier on your leg.

Are you planning to keep the power around stock levels or make it much higher?


The build is for more reliability than insane hp. I'm keeping the stock SOHC heads and plan on using a TD04 with sti pink injectors.


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 Post subject: Re: Which clutch to use in a Ej22t swap?
PostPosted: Tue Feb 28, 2017 4:17 pm 
Fourth Gear
Joined: Mon Aug 31, 2009 9:09 pm
Posts: 1204
Location: Rochester, WA
Pinks are topfeed. You would need sidefeeds, so 440cc gray injectors or 550cc yellow injectors. Both require appropriate engine management to run. Either would work great with a TD04.

You need to use a push-style clutch, but I'd recommend upgrading to hydraulic as well since the cable likes to stretch and snap if you go to a stronger pressure plate, which you will probably need to do at much higher than stock SS power. A stock N/A clutch may or may not hold well . If you keep the boost low-ish, like 12-13psi or so, a stock N/A cable clutch would probably be fine. That'd be around 200 flywheel HP or so.

As far as hydraulic goes, I like to use the 06+ WRX push clutch on N/A transmissions. You need the clutch hydraulics, hydraulic pedal box, complete clutch kit, flywheel, clutch fork and pivot pin, and some small grinding on the ribs of the bellhousing to fit the clutch.

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 Post subject: Re: Which clutch to use in a Ej22t swap?
PostPosted: Tue Feb 28, 2017 5:58 pm 
In Neutral
Joined: Mon Jan 30, 2017 7:32 pm
Posts: 10
Location: Carnation, Washington
Alphius wrote:
Pinks are topfeed. You would need sidefeeds, so 440cc gray injectors or 550cc yellow injectors. Both require appropriate engine management to run. Either would work great with a TD04.

You need to use a push-style clutch, but I'd recommend upgrading to hydraulic as well since the cable likes to stretch and snap if you go to a stronger pressure plate, which you will probably need to do at much higher than stock SS power. A stock N/A clutch may or may not hold well . If you keep the boost low-ish, like 12-13psi or so, a stock N/A cable clutch would probably be fine. That'd be around 200 flywheel HP or so.

As far as hydraulic goes, I like to use the 06+ WRX push clutch on N/A transmissions. You need the clutch hydraulics, hydraulic pedal box, complete clutch kit, flywheel, clutch fork and pivot pin, and some small grinding on the ribs of the bellhousing to fit the clutch.


Alright, on the hydraulics parts you listed are you referring to the clutch hydraulics that came on SS's and I need to track those down or use wrx parts? What kind of standalone would work the best?


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 Post subject: Re: Which clutch to use in a Ej22t swap?
PostPosted: Tue Feb 28, 2017 6:31 pm 
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Location: Houston, Tx
He is talking about the hydraulics from the 06+ WRX.

As for engine management I suggest checking out the Robtune

viewtopic.php?f=19&t=43744

And the ESL board is another recent option.

viewtopic.php?f=19&t=55665

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Josh

surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
1997 Impreza OBS

If you need to get a hold of me please email me rather then pm


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 Post subject: Re: Which clutch to use in a Ej22t swap?
PostPosted: Tue Feb 28, 2017 7:03 pm 
In Neutral
Joined: Mon Jan 30, 2017 7:32 pm
Posts: 10
Location: Carnation, Washington
Legacy777 wrote:
He is talking about the hydraulics from the 06+ WRX.

As for engine management I suggest checking out the Robtune

viewtopic.php?f=19&t=43744

And the ESL board is another recent option.

viewtopic.php?f=19&t=55665


Awesome thanks! And i just want to clarify, 06 wrx pedal along with master and slave, All 06+ parts and it should work?


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 Post subject: Re: Which clutch to use in a Ej22t swap?
PostPosted: Wed Mar 01, 2017 6:55 am 
Fourth Gear
Joined: Mon Aug 31, 2009 9:09 pm
Posts: 1204
Location: Rochester, WA
Any hydraulic clutch box, from 91-94 Turbo Legacy, 97+ EJ25 Legacy/Outback, 1998+ EJ25 Impreza/Forester. Up until '04 for the Legacy/Outback and '07 for the Impreza/Forester I believe. By pedal box, we mean the actual clutch/brake/gas pedals and associated bracketry inside the car.

Master and slave cylinders need to be from an 06/07 WRX if you want them to work best with the 06/07 WRX clutch setup.
There's some info in my SL-i thread about the clutch setup, I used 06/07 WRX parts on my '99 5-speed until I Swapped to 6-speed.
http://sl-i.net/FORUM/showthread.php?18 ... speed-swap

Josh has you covered on the current easiest engine management options.

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 Post subject: Re: Which clutch to use in a Ej22t swap?
PostPosted: Wed Mar 01, 2017 4:41 pm 
In Neutral
Joined: Mon Jan 30, 2017 7:32 pm
Posts: 10
Location: Carnation, Washington
Alphius wrote:
Any hydraulic clutch box, from 91-94 Turbo Legacy, 97+ EJ25 Legacy/Outback, 1998+ EJ25 Impreza/Forester. Up until '04 for the Legacy/Outback and '07 for the Impreza/Forester I believe. By pedal box, we mean the actual clutch/brake/gas pedals and associated bracketry inside the car.

Master and slave cylinders need to be from an 06/07 WRX if you want them to work best with the 06/07 WRX clutch setup.
There's some info in my SL-i thread about the clutch setup, I used 06/07 WRX parts on my '99 5-speed until I Swapped to 6-speed.
http://sl-i.net/FORUM/showthread.php?18 ... speed-swap

Josh has you covered on the current easiest engine management options.


Fantastic. Your thread was quite helpful in laying it all out. I just wanted to be 100% in understanding what I needed before pulling the trigger. Ordering up hydraulic parts as I type!



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 Post subject: Re: Which clutch to use in a Ej22t swap?
PostPosted: Fri Mar 24, 2017 12:09 am 
First Gear
Joined: Sun Feb 09, 2014 6:20 am
Posts: 124
Location: Snohomish Wa
Cool to see someone from carnation on here! I love it out there, they have the best skatepark around and it is ALWAYS empty lol

On a side note i have to do a hydro conversion for the ss tranny i plan to swap into my L sedan, try and take pictures if you can! Curious on how the pedals are going to fit!

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White 1991 L sedan AWD 5MT-(Robtune 550 DOHC Ej22t swap coming together) 187xxx miles


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