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  #1  
Old 21-12-2012, 06:19 PM
scoobypat scoobypat is offline
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Default engine change
hi all am thinking of fitting a ej25 into my classic next year.will i be able to use my wrx box or will i need to change it
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  #2  
Old 21-12-2012, 06:31 PM
Nige
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You don't need to change the box. Good idea to change the clutch though.
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Old 21-12-2012, 06:57 PM
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Don't "need" to change either but all depends what's going in with it
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Old 21-12-2012, 07:43 PM
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2.5 is likely to have too much torque for a 5 speed in the long run. It'll fit I had mine on a 5 speed for a bit.
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2005 Spec B 6MT - KiDO tuned (~270Bhp)
Custom exhaust - Cosworth filter - Samco Intake - Tints - Bilstein B8/B6 & STI springs - SuperPro ALK - Whiteline positive shift kit, rack mounts, rear adjustable camber bushes, front ARB mounts & strut brace, 20mm rear ARB with AVO mounts, - Hardrace Gearbox and pitch mounts - Prodrive PFF7's - Front Brembos - Kenwood CarPlay - 1/2 carbon grille - STI front splitter
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Old 22-12-2012, 11:37 AM
scoobypat scoobypat is offline
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im building a road legal track car. so thats why i want to put a 2.5 in it
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Old 22-12-2012, 01:16 PM
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I'd do a 2.1 or 2.35
2.5 is not a track engine I d want again
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  #7  
Old 22-12-2012, 03:03 PM
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Quote:
Originally Posted by C. J. View Post
I'd do a 2.1 or 2.35
2.5 is not a track engine I d want again
2.35 is the way forward best of both worlds
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  #8  
Old 22-12-2012, 06:32 PM
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My view is 2.5 for road, 2.1 or 2.35 (if you have deeper pockets for track)

My 2.5 is great on the road but on track it's too fragile and doesn't like to be revved that hard. Getting a 2.5 pinned or closed would increase safety margin but the engine would still be about low down torque not really a track setup.
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2005 Spec B 6MT - KiDO tuned (~270Bhp)
Custom exhaust - Cosworth filter - Samco Intake - Tints - Bilstein B8/B6 & STI springs - SuperPro ALK - Whiteline positive shift kit, rack mounts, rear adjustable camber bushes, front ARB mounts & strut brace, 20mm rear ARB with AVO mounts, - Hardrace Gearbox and pitch mounts - Prodrive PFF7's - Front Brembos - Kenwood CarPlay - 1/2 carbon grille - STI front splitter
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  #9  
Old 22-12-2012, 09:20 PM
scoobypat scoobypat is offline
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cheers guys. so do you think a ej22 would do
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  #10  
Old 23-12-2012, 08:43 AM
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ej22 with a 2.5 crank (needs a rear thrust conversion to fit) with forged rods and pistons will give you the holy grail of impreza engine the 2.35. If I had my time again I'd wait on my rebuild and do the above, C.J did the same having a very good strong 2.5 he still switched to a 2.35 because of the reliability/safety.
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2005 Spec B 6MT - KiDO tuned (~270Bhp)
Custom exhaust - Cosworth filter - Samco Intake - Tints - Bilstein B8/B6 & STI springs - SuperPro ALK - Whiteline positive shift kit, rack mounts, rear adjustable camber bushes, front ARB mounts & strut brace, 20mm rear ARB with AVO mounts, - Hardrace Gearbox and pitch mounts - Prodrive PFF7's - Front Brembos - Kenwood CarPlay - 1/2 carbon grille - STI front splitter
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  #11  
Old 23-12-2012, 11:06 AM
scoobypat scoobypat is offline
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going to see if i can get an ej22 then
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  #12  
Old 23-12-2012, 11:09 AM
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Friend has some coming in from the states in january if need one pm us
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