2.2 from 911 for sale on the samba, link attached |
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2.2 from 911 for sale on the samba, link attached |
jbyron |
Dec 28 2007, 10:44 AM
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#1
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Jamie Group: Members Posts: 149 Joined: 17-July 07 From: Ballwin, MO Member No.: 7,916 Region Association: Upper MidWest |
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BK911 |
Dec 31 2007, 08:13 PM
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#2
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Senior Member Group: Members Posts: 672 Joined: 19-February 04 From: Rocky Top, TN Member No.: 1,674 Region Association: None |
A 2.2T piston has a little more displaced volume than a 2.4S piston. The dome is about the same but less valve pocket. So a 2.2T piston in a 2.4 will give a slightly higher CR as a 2.4S. This isn't something I read, it is something I measured in the shop. Add .5 for 2.2E and 1.0 for 2.2S. I had a spreadsheet with all the measurements but I can't find it now.
So a 2.4S has 8.5:1, 2.2T pistons on a 2.4 crank will give ~8.6 2.2E ~ 9.1:1 2.2S ~ 9.6:1 BA performance handbook states a measured 9.66:1 with 2.2S pistons and 2.4 crank. So I think my measurements are pretty close. (IMG:style_emoticons/default/biggrin.gif) I am heading downtown. I hope everybody has a nice and safe new years eve and new year. Later. (IMG:style_emoticons/default/beerchug.gif) |
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