TwinTurbo.NET: Nissan 300ZX forum - you may not have lost anything that a chart would show
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Subject you may not have lost anything that a chart would show
     
Posted by toyluvr on June 20, 2001 at 5:19 PM
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In Reply To Can we get some dyno charts of an NA losing power.. posted by aZinAZoo on June 20, 2001 at 04:11 PM
     
Message unless you baseline with cats etc. in place. Even then, it may not be *lost* but *moved*.

Reduction in backpressure causes loss of torque on low end, but increases flow on top end. So you feel it in daily driveability.

But 1/4 mi et may improve (Phuong's did) and I suspect a dyno before/after reflects worse numbers down low, with higher peaks.

So. For a dyno queen, let em rip. For a top end car, or 1/4 mi car, same thing. For street grunt and fun, keep 'em.

Just MHO. Based on posts of others and experience with other cars.

     
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