DIY Network

Nissan 350Z: Exhaust and Air Intake Mods Andrew Totolos makes a few enhancements that help a new-generation Z-car breathe easier — and go faster. From "Tricked Out" episode DTRK-407

(Continued from page 6)

The Payoff: DYNO Test

Andrew has completed the three most common performance modifications performed on the 350Z, and now it's time to put those modifications to the test. He uses a portable DYNO to test the car's power, comparing it to baseline results.

The DYNO setup

A fan simulates wind effect of driving.

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	Figure A
	Figure B
	The rear wheels are placed on the DYNO rollers.
	The DYNO results indicate a discernible horsepower boost.

Materials and tools:

portable DYNO (or take the car to a DYNO testing center)
high-flow fan

DYNO Procedure Basics

All DYNO's measure power a little bit differently, so it's important to do a baseline run to get both "before" and "after" readings with the same car on the same DYNO for accurate results.

• Once the car is strapped to the machine, put a high-flow fan in front of the engine to simulate rushing air as the car flies down the road (figure A).

• An air temperature probe dropped down by the new filter (figure B) will tell the DYNO what kind of conditions you're running under.

• Rather than just doing one run, we did three full-throttle runs through fourth gear, which is the most accurate one-to-one ratio, and averaged the results.

With all the new airflow mods, both the torque and overall power got a discernible boost. At 6000 rpm, the 350Z picked up 17 additional horsepower, going from 206 hp before the mods to 223 hp after.

The Bottom Line

Cold air intake $340
Plenum spacer $225
Strut tower bar $230
Exhaust system $900

Total = $1695

Savings from installing the mods yourself: $450

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RESOURCES :

Special resources for DIY's Tricked Out 400 series

Racing Innovations
www.racinginnovations.com

Knoxville Dragway
www.knoxdragway.com

Wetherill Associates
www.waipowdercoating.com

SPC Performance
www.spcperformance.com

AEM
www.aempower.com

Kicker
www.kicker.com

Autoloc
www.thehoffmangroup.com

Killer Cans by Alsa Corp.
www.alsacorp.com

Rapido Group
www.rapidogroup.com

Stellar Security
www.thehoffmangroup.com

Dyno Dynamics
www.dynodynamics.com

Stillen
www.stillen.com

Skunk2 Racing
www.skunk2.com

Injen Technologies
www.injen.com

Nitrous Express
www.nitrousexpress.com

Synapse Engineering
www.synapseengineering.com

Air Ride Technologies
www.ridetech.com

Airgasm Kustomz
www.airgasmkustomz.com

Lincoln Electric
www.lincolnelectric.com

Mickey Thompson Performance Tires And Wheels
www.mickeythompsontires.com

Buggies Unlimited
www.buggiesunlimited.com

Leatherseats.com
www.leatherseats.com

GUESTS :

Chris Capiske
Dyno Dynamics
www.dynodynamics.com