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  #1  
Old 6th September 2017, 04:39 PM
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Default SF 1.44 Dual Range in Forester XT

I know it's been a LONG time here. Forester is back up and running (it was down for 1.5 years and just took a while to rebuild everything on it).

I have purchased a 1.44 SF dual range transmission, and have all the supporting bits to make the install. The one thing I've been trying to find is what clutch to use. I know of some Australian guys running an XT with the dual range. What clutch have you been using? I have been thinking of throwing an ACT or Exedy Stage 1 clutch to handle the torque of the turbo engine.

I know the dual-range transmissions need to be babied, especially when bolted up to a turbo, but I just want to make sure the clutch isn't slipping when off road.

Any ideas?
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Old 7th September 2017, 12:45 AM
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I'd just use a std OEM/exedy replacement. There are plenty of examples of them holding up fine behind reasonable power.

You want the clutch to go before the box.

I'm running a stock/exedy clutch / 1.19:1 dual-range behind a legacy twin turbo (280hp / 250+ ftlb) with no issues.
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Old 7th September 2017, 07:48 PM
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A stock N/A clutch is running fine with your Legacy? That's good to hear. I'll take a look at that then.
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Old 8th September 2017, 03:21 PM
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I run a heavy duty push type clutch. The engine has been tuned and runs a custom gearbox with shot peened gears from a turbo gearbox 3rd to 5th and the strongest readily available 1st and 2nd also shot peened, with shot peened 1.447 low range ratio gears. I also tow a camper trailer so I didn't want to run the risk of the clutch slipping under load and boost.
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Old 8th September 2017, 09:49 PM
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Good to see you back BlueFox, your videos are what inspired me to get a Forester!
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Old 9th September 2017, 09:28 PM
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Quote:
Originally Posted by Blue Fox View Post
I know it's been a LONG time here. Forester is back up and running (it was down for 1.5 years and just took a while to rebuild everything on it).

I have purchased a 1.44 SF dual range transmission, and have all the supporting bits to make the install.
Welcome back, Blue Fox!

Great to hear your Fozza is back up and running. Even better to hear that you're going to bolt on a dual-range transmission.
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Old 11th September 2017, 03:51 AM
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Great to see you back Blue Fox

Plenty of people are running a dual range gearbox behind a turbo or H6, as you say just needs to be babied a little. No launches, dropping the clutch or burnouts in low range lol

As for the clutch, I used a standard clutch when I did my engine swap (EJ22E), you could do that or a HD clutch, but don't do a puk clutch or anything too heavy. As duncanm said, you want the clutch to be the weak point not the gearbox.

Remember, the clutch part number needs to match the gearbox not the engine
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Old 11th September 2017, 10:22 PM
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Was wondering where you'd gone! You haven't had much luck with the Forrys have you :D Looking forward to some more cool offroad vids, especially with the DR box.
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Old 14th September 2017, 01:35 PM
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Thanks for the welcomes everyone.

Backstory if anyone cares:

I rebuilt the engine with new pistons a couple years ago (at 210k miles), everything was fine, then it melted a piston again (220k miles). All of the issues I've had for the past 100k miles on the car has been an intermittent injector issues. After the piston melted (cylinder 2), it scored the block. But at the time, I wasn't able to rebuild for a year due to the place I was currently living in. We had a badass garage, but it was detached and in the woods, so mice were a commonality. We were also living in an area where Hautavirus is a thing. And since we couldn't keep the mice out no matter what we did (we would clear traps everyday, 10-15 mice/day), so I essentially stayed away from the garage waiting to move for a year.

Once I moved into my new place, I built it up into a shop, and started work on the Forester. This included a "new" used engine that is running well, new wheels tires (Method VT502 Rally Wheels with General Grabbers), Mishimoto Racing Radiator, wheel bearings, all new bushings, new clutch (which is defective, but will replace when the dual-range goes in), muffler-delete with straight pipe, and some other goodies.

Once I get all the pieces in to do the dual-range swap, I will be heavily filming this to create an in-depth series on how to DR swap the car. Just waiting on the interior trim/shifter pieces for the DR to make it look factory.

I wanted to originally have the car perfect this year to make videos, but it may have to wait until next year. Perhaps I'll debut the "new" version of this car this winter with some snow videos.

While the Forester was down, I bought a 2000 Outback 5-Speed that I got for a great deal, and the car handled everything I threw at it. I actually enjoyed it even though it was severely slow, haha. This re-sparked my interest into Outbacks again, and back in April of this year, I bought one of my bucket-list Subarus and got a 2005 Outback XT in black with a manual transmission. I immediately started modifiying this car to make it into a low, Legacy GT wagon. So, Legacy GT Spec B suspension all the way around, Rallitek springs, Crosstrek wheels, sport tires, LGT steering rack, bushings, etc. The car handles great, makes good power and I Autocross the car regularly. This is my new daily driver that will allow me to make the Forester a bit more "extreme" for off road use.



But thanks for all the replies. Thinking of going with a 2.5RS Stage 1 clutch from Exedy, with a lightened flywheel. Still doing research on this. Maybe an ACT clutch.
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Old 14th September 2017, 07:25 PM
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Interesting backstory! The Outback XT sounds good.
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