Subject	Compression test #'s 700 miles into the breakin period .
Posted by	Xteam300TT (South Tx ) on October 18, 2011 at 9:31 PM
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Message	Will these #'s get better after the 1500 mile breakin or is this pretty much what it's going to be ? 1) 155 2)152 3)162 4)160 5)155 6)155 This is on my IPP stage 4 long block . The test was done after a 30 minute drive , fuel relay pulled , all plugs removed , balance tube off , battery charged and throttle bodies open . This is what the plugs looked like . 5 out of the 6 plugs looked like this one. The plug in #3 looked like this . Plug type , gapped to .035 What's goin on with plug #3 ? My AFR is exactally the same on both banks via 2 wideband . Sorry about the general post turning technical . Any opinions appreciated , thanx
Follow Ups	Compression test #'s 700 miles into the breakin period . - Xteam300TT (South Tx ) 21:31:50 10/18/11 Did you hit boost yet? Plug 3 looks like - new2boost 22:15:40 10/18/11 No boost yet , maybe 2-4 lbs by accident but nothing - Xteam300TT (South Tx ) 22:32:03 10/18/11 Like CmyZ said, it looks like that cylinder is lean. - new2boost 22:56:48 10/18/11 Re: Compression test #'s 700 miles into the breakin period . - CmyZ 22:16:43 10/18/11 No I dont have a egt gauge . I have new 740 nismo's and - Xteam300TT (South Tx ) 23:07:53 10/18/11 You dipped your injectors in water ? - ztunerz 23:15:44 10/18/11 Yes , after pressurizing the rail I submerged the - Xteam300TT (South Tx ) 23:29:13 10/18/11 Yes i spray brakeclean at the base of the rail with the - ztunerz 23:59:52 10/18/11 Thanx , brakeclean tomorrow it is ! (n/m) - Xteam300TT (South Tx ) 00:02:46 10/19/11 bigger cams will cause a lower vacuum at idle (n/m) - KongZTT GT28RS MD 15:23:09 10/19/11 160-170 seems a bit optimistic considering he has cams (n/m) - aliaZ 23:26:57 10/18/11 Agreed, thats what i was thinking. (n/m) - ztunerz 00:00:35 10/19/11 Re: 160-170 seems a bit optimistic considering he has cams - CmyZ 16:09:28 10/19/11 150-160 (n/m) - aliaZ 22:19:48 10/19/11 Soft or Hard break-In out of curiosity? - samsungz (Houston) 23:19:00 10/18/11 Soft break-in , staying out of boost , heat cycles . (n/m) - Xteam300TT (South Tx ) 23:33:16 10/18/11 leakdown test tells a better story IMHO (n/m) - aliaZ 23:47:10 10/18/11 I tried to do a leakdown on my other engine but was - Xteam300TT (South Tx ) 23:55:59 10/18/11 Re: I tried to do a leakdown on my other engine but was - aliaZ 06:02:54 10/19/11 I think I'll put a new plug in #3 and see what happens . (n/m) - Xteam300TT (South Tx ) 23:47:29 10/18/11 Thats a good idea. (n/m) - ztunerz 00:01:35 10/19/11 I cant help but think that cyl 3 is burning some oil... - kickerzx 12:54:20 10/19/11 Plug number 3 shows that cyl is burning oil....... - Greg D. (Specialty-Z) 17:52:01 10/19/11 Makes sense , Thanx ! Any certin oil that will help that ? (n/m) - Xteam300TT (South Tx ) 21:58:58 10/19/11 2nd (n/m) - aliaZ 05:37:16 10/20/11 i wish mine were that good - spyhunterTT(md) 19:46:18 10/19/11 I would do a leakdown test and find out where the - aliaZ 05:38:43 10/20/11
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