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buzzinhalfdozen · 10-02-2013, 05:01 PM

O, well I have no experience with turbo cars, however 12.5 sounds a bit on the lean side for 12 PSI of boost IMO. Have you tried richening the map in the area of your issue? I'll bet Ed Wright has tuned a hair dryer car or 2 hopefully he'll chime in here. Do you have any idea of what kind of valve spring pressure you have? Again on boosted stuff I'm merely guessing, however I'd be hard pressed to think you're in valve float at that engine speed. Do you have a map to run unboosted, you could revert to that map and pull off the charged air tube and try it.

10-02-2013, 05:01 PM	#4
buzzinhalfdozen Senior Member Join Date: Sep 2006 Location: Bellevue Ohio Posts: 984 Likes: 0 Liked 11 Times in 8 Posts	Re: Valve float on a datalog O, well I have no experience with turbo cars, however 12.5 sounds a bit on the lean side for 12 PSI of boost IMO. Have you tried richening the map in the area of your issue? I'll bet Ed Wright has tuned a hair dryer car or 2 hopefully he'll chime in here. Do you have any idea of what kind of valve spring pressure you have? Again on boosted stuff I'm merely guessing, however I'd be hard pressed to think you're in valve float at that engine speed. Do you have a map to run unboosted, you could revert to that map and pull off the charged air tube and try it. __________________ Joe Buchanan SS/BX 3117