2.1 + 2.3 - Saab Performance Bulletin Board - Saabnet.com
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2.1 + 2.3
Posted by DrewP [Email] (more from DrewP) on Thu, 6 Mar 2008 12:24:59
In Reply to: Re: 9000 pistons in 900T16?, 900 Aero
[Profile/Gallery]
, Thu, 6 Mar 2008 10:47:55
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So by my numbers a 2.3 crank and rods w/ custom pistons in a 93mm bore 2.1L block gives 2445ccs, not counting if it's had to be bored over or anything, but you end up with the crappy material in the 2.1L blocks.
Dave, do you think the increased displacement (2445cc vs. 2290cc) is worth the trade to the inferior material?
Is it just the material issue, with the 2.1L blocks corroding against the heads? Are the cylinder walls as thick as those in the 2.0L blocks, just larger? I remember talking with Stephen when we had the engine done for the black '85, and he was saying that boring out the block too much can give enough cylinder wall deflection that the rings won't seal as well, and you will actually lose power.
Best,
Drew
posted by 165.124.165...
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