Compression and vin decode

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Compression and vin decode - 3/11/2008 8:26:07 AM    corbaprince   Posts: 22 Joined: 2/19/2008 Status: offline I know the compression of all of my valves( I just checked them) But how do I figure out the compression ratio now? And can someone please help me decode my vin and tell me what type of engine I have? :                                                                                                                          JB3AM44HXRY0XXXXX Post #: 1

RE: Compression and vin decode - 3/11/2008 8:39:40 AM    thestealth Posts: 3557 Joined: 2/3/2004 From: United States Status: offline Show me a picture of it and I'll tell you what you have... You either have a SOHC 3.0L or a DOHC 3.0 NA or TT. The compression of the NA DOHC is 10:1, the TT is 8:1, and I think the SOHC is 8.9:1 providing everything is stock. (in reply to corbaprince) Post #: 2

RE: Compression and vin decode - 3/12/2008 5:29:41 AM    corbaprince   Posts: 22 Joined: 2/19/2008 Status: offline How do I figure that out though? My compression guage read that I have 150 in all but two chambers and in those I had 165 and 170. (in reply to thestealth) Post #: 3

RE: Compression and vin decode - 3/12/2008 8:39:02 AM    thestealth Posts: 3557 Joined: 2/3/2004 From: United States Status: offline You don't calculate the compression ratio of an engine by doing a compression test.   (in reply to corbaprince) Post #: 4

RE: Compression and vin decode - 3/12/2008 8:55:48 AM    corbaprince   Posts: 22 Joined: 2/19/2008 Status: offline So how do I calculate it then? (in reply to thestealth) Post #: 5

RE: Compression and vin decode - 3/12/2008 9:07:09 AM    thestealth Posts: 3557 Joined: 2/3/2004 From: United States Status: offline http://www.rbracing-rsr.com/compstaticcalc.html (in reply to corbaprince) Post #: 6

RE: Compression and vin decode - 3/13/2008 5:41:36 AM    corbaprince   Posts: 22 Joined: 2/19/2008 Status: offline Is there an easy way to get those measurements? And do you know of what the range my compression should be at?(I mean not the ratio just the compression of the chambers) (in reply to thestealth) Post #: 7

RE: Compression and vin decode - 3/13/2008 6:25:11 AM    thestealth Posts: 3557 Joined: 2/3/2004 From: United States Status: offline What engine is it your car? (in reply to corbaprince) Post #: 8

RE: Compression and vin decode - 3/13/2008 7:54:34 AM    corbaprince   Posts: 22 Joined: 2/19/2008 Status: offline It is either the DOHC or the SOHC. I can not tell. How will I know? I thought the vin number would tell me but  I do not know how to decode it. (in reply to thestealth) Post #: 9

RE: Compression and vin decode - 3/13/2008 8:16:39 AM    thestealth Posts: 3557 Joined: 2/3/2004 From: United States Status: offline Do you have a digital camera?  With a quick pic, I'll tell you what you have. (in reply to corbaprince) Post #: 10

RE: Compression and vin decode - 3/13/2008 8:21:02 AM    corbaprince   Posts: 22 Joined: 2/19/2008 Status: offline Yes, I will take a pic of it right now. Give me less than ten minutes. (in reply to thestealth) Post #: 11

RE: Compression and vin decode - 3/13/2008 8:30:53 AM    corbaprince   Posts: 22 Joined: 2/19/2008 Status: offline Here are a couple of pictures. Just let me know what you think and/or if i need more and/or better pictures. < Message edited by corbaprince -- 3/13/2008 8:41:52 AM > (in reply to corbaprince) Post #: 12

RE: Compression and vin decode - 3/13/2008 8:36:02 AM    corbaprince   Posts: 22 Joined: 2/19/2008 Status: offline Sorry, that was defintly NOT the engine. Here it is, I am sure this time. (in reply to corbaprince) Post #: 13

RE: Compression and vin decode - 3/13/2008 8:55:19 AM    thestealth Posts: 3557 Joined: 2/3/2004 From: United States Status: offline Can't see the pictures..? (in reply to corbaprince) Post #: 14

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