TwinTurbo.NET: Nissan 300ZX forum - sweet, what the hell you doing with cats on your Z?
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Subject sweet, what the hell you doing with cats on your Z?
     
Posted by orion on October 17, 2000 at 4:47 AM
  This message has been viewed 14 times.
     
In Reply To Problem solved !! Big boost (20+psi) on my Stage 12 !! > posted by qqqqqqqman on October 16, 2000 at 11:28 PM
     
Message : Long story shortened...5 months of build-up, underperformance, slow diagnostics, and just plain problems.
: HKS GT turbos, 555's, etc.---only getting 12 psi boost, with pinging nonetheless !!
: After taking it to Greg Dupree @Specialty Z for a ground zero restart on diagnostics, the culprit was found.......
: Twas the friggen CATS !! After he removed the exhaust, the turbos boosted to 20psi+. The new turbos just flow too much exhaust and the cats were clogged, preventing boost-up.

: So the main cats were gutted, and since it had pinged before
: we put race gas in and it boosted a steady 24psi.
: Car was scary fast...he drove, I held the door handle !!
: As Wolf would say, "Whoo-fuckin-whoo !!"
: At least all that money didn't go to waste :-)

     
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