Subject	My Z is sick.
Posted by	Zenica on April 13, 2007 at 1:53 PM
	This message has been viewed 192 times.
Message	I had my Z dyno'd and she is not doing so well. Disappointing The guy who did the dyno said my air/fuel curve is very lean. I did check fuel pressure before going, I have 38psi @ idle and it goes to 50 under acceleration. He suggested sending the ECU back to JWT and ask that it be rechecked. Any ideas? Anyone agree with this suggestion?
Follow Ups	My Z is sick. - Zenica 13:53:55 04/13/07 50 psi is a bit low for full throttle - spyhunterTT(nj) 13:59:16 04/13/07 Re: 50 psi is a bit low for full throttle - Zenica 14:02:41 04/13/07 it is very easy, its on top of the plenum. like 2 10mm bolts - NobleZ 14:06:27 04/13/07 Your fuel pressure should be 43.5, at zero manifold - octavian-z 14:04:21 04/13/07 I forgot, also check your FPR (n/m) - octavian-z 14:06:34 04/13/07 correct, but will dip below that at idle, since - Guapo 14:09:28 04/13/07 Thanks for the replies.. - Zenica 14:12:47 04/13/07 RE: Idle psi - Broke_as_**** 14:19:24 04/13/07 It's an erratic jump because the fuel pump controller - octavian-z 14:26:21 04/13/07 With your mods, you should be around 375 rwhp. - eriksu9 14:25:04 04/13/07 Re: With your mods, you should be around 375 rwhp. - Zenica 14:32:47 04/13/07 that doesn't sound too far off - spyhunterTT(nj) 14:38:33 04/13/07 Re: that doesn't sound too far off - Zenica 14:41:48 04/13/07 A vacuum leak would cause him to run rich, not lean. (n/m) - Billteed1 15:00:52 04/13/07 I should have said a boost leak. - Billteed1 15:27:16 04/13/07 I would check for a vacuum leak after checking the FPR - olyar15 14:29:29 04/13/07 How would they let in unmetered air - Billteed1 15:02:38 04/13/07 Not on the inlet side - Broke_as_**** 15:07:42 04/13/07 Re: Not on the inlet side - Zenica 15:17:04 04/13/07 Carb sprary is good for find a leak... - Broke_as_**** 15:51:36 04/13/07 Re: Carb sprary is good for find a leak... - Zenica 16:00:27 04/13/07 I see - Billteed1 15:25:28 04/13/07
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