My Impreza - what's 'linering' on a 2.5 block?
Discussion
I would assume he means fit new Cylinder liners to the block, these would be bored out to the same size initially so they would probably give the same power. maybe the liners have thicker walls than standard and that could be why they would strengthen the block.
Thats my understanding unless its a new term that Im not familiar with.
Thats my understanding unless its a new term that Im not familiar with.
Edited by clarenceboddiger on Saturday 19th July 07:46
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I'm sure subaru's have cast iron cylinder liners anyway that have a manufacturers coating on them.
I imagine new liners would be stronger as has been said, not neccesary thicker, and they would have a special coating on them better than OEM.
You can get thicker liners but they require the block itself boring out to fit so they may be talking about replacing the liners with OEM size upgrades.
I imagine new liners would be stronger as has been said, not neccesary thicker, and they would have a special coating on them better than OEM.
You can get thicker liners but they require the block itself boring out to fit so they may be talking about replacing the liners with OEM size upgrades.
Thanks all. There's 'potential' my cylinders are scored because of head gasket failure so I guess the suggestions of 'linering' was to insert these post bore to ensure an oem block/cyclinder fit. I was thinking that perhaps it would be possible to strengthen the 2.5 block so it could safely take more than 500bhp.
The std 2.5STi block is a Semi Closed Deck. If you want a very strong block you need the Closed Deck block to ensure it's as burst proof as poss with appropriate liners, forged, lightened and balanced everything internally and you're away. But then you'd be wanting all the other nice bits as well like ported and gas flowed heads, bigger valves, hotter cams, lightened pulleys and flywheel, etc... etc...
It'll take a heck of a lot more than 500bhp and rev like a honda but then again you can only go as far as your pcokets are deep....unless you decide to remortgage the house
It'll take a heck of a lot more than 500bhp and rev like a honda but then again you can only go as far as your pcokets are deep....unless you decide to remortgage the house
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