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big bore 2.0 engine

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Old Sep 14, 2002 | 04:01 PM
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Noticed this on i-club, is it possible ??

Wet liners of 99.5mm bore into an early EJ20 closed deck block ?

Anyone tried it ? Seems to be plenty support material top and bottom where it's required ?

It would yield just under 2400 cc with the standard stroke crank
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Old Sep 15, 2002 | 11:40 AM
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Depends on the OD - 99.5 would give an OD of 105.5 as a minimum - which would only leave about 2mm wall thickness in the block.

Sounds too big to me.

Trout
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Old Sep 15, 2002 | 12:38 PM
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From: SSO2003 2nd, SSO2005 1st, SSO2006 2nd, TACC Rd4 5th 4wd: In my car ;-)
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Trout,

"Wet liners" mean that the bore is taken out to such an extent, that they are actually in direct contact with the cooling water, and do away with the ally normally used to support the bore liner.

Personally, I wouldn't go that route.

Next, I'm not certain how you can get 2.4lt, with 99.5mm bores, and a 75mm stroke, unless I'm using the wrong equation.

Pi X r sq'd X Stroke X 4 ?

3.14 X (49.75 x 49.75) X 75 X 4 = 2331cc.

Mark.
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Old Sep 15, 2002 | 05:37 PM
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Red face

Gets back in box......

I have much to learn sensei

Trout
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Old Sep 15, 2002 | 08:21 PM
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agree with mark on the equation, so 2.3ltr really.

as far as the liners not being supported by alloy....think a closed deck should be used if you do go that route.

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Old Sep 15, 2002 | 08:50 PM
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Remember guys the Yanks measure things differently.

I mean based on their BHP figures a 99.5mm bore ID should give about 4 litres

Trout
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Old Sep 15, 2002 | 10:03 PM
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only 4 litres

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Old Sep 15, 2002 | 10:32 PM
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From: SSO2003 2nd, SSO2005 1st, SSO2006 2nd, TACC Rd4 5th 4wd: In my car ;-)
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Per cylinder.........
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