TwinTurbo.NET: Nissan 300ZX forum - Hmm.. Looks and acts like a boost leak to me.. >>
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Subject Hmm.. Looks and acts like a boost leak to me.. >>
     
Posted by AshsZ (FabZEM All) on May 27, 2003 at 1:50 PM
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In Reply To Comments on Dyno and thoughts on where to look next? posted by weingart on May 27, 2003 at 01:45 PM
     
Message pressurized air leaking from somewhere was metered but not being consumed by the engine - A/F will fall quickly and power will suffer as the turbos overspool to keep up with the excessive lbs/min of flowrate at the same psi. Intake charge air temps skyrocket, mixture runs rich, power falls. Should have been at least 320RWHP.

However, if the car was over 215 degrees, the ECU dumps 17% more fuel which will make the A/F drop considerably, but that drop you are experiencing is well more than 17% so I would be sure to check your actual temperature with a techtom or something as well as isloate any boost leaks.



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