MENU

Home

Pictures

Z31 Repairs

Z31 Modifications

Z31 Information

Z31 Fiche Index

Z31 FAQs

Other

Links

The Z Registry

In case you want to know
how I'm doing,
Deer Valley, Arizona
Click for Glendale, Arizona Forecast

Dyno Test Night at Technodyne November 12th, 2003


Test Suject: 1984 Nissan 300ZX Turbo
Mileage: 155,xxx
Modifications: None
The car has a 3" exhaust from Certified Muffler, an A'PEXi AVC-R electronic boost controller, an MSD Digital SCIPlus electronic ignition system, and a Jim Wolf Technology ECU Tuned for stock turbo, injectors, and able to keep up with more boost. I've also plugged the original POV with a 1" NPT plug. Everything else is Nissan except for the NGK plug wires.
Items to test for the night were:
Air Filter Comparison:
  • Stock Air Filter
  • DMS Tuning system (RActive Filter)
  • K&N RE-0810
  • Team Green Filter
Peak Values
  baseline RActive K&N Team Green
stock
boost		 Horsepower (hp) 192.5 @ 5090 rpms 200.6 @ 5220 rpms 202.4 @ 5040 rpms 195.5 @ 5110 rpms
Torque (ft-lbs) 215.8 @ 3530 rpms 220.0 @ 2540 rpms 219.7 @ 2490 rpms 217.2 @ 3070 rpms
10 psi
boost		 Horsepower (hp) 214.4 @ 5010 rpms 225.3 @ 5110 rpms 222.7 @ 5170 rpms 221.9 @ 5140 rpms
Torque (ft-lbs) 264.7 @ 3020 rpms 268.3 @ 2680 rpms 266.2 @ 2720 rpms 264.4 @ 3190 rpms
13 psi
boost		 Horsepower (hp) 230.1 @ 5150 rpms 235.2 @ 5070 rpms 235.8 @ 4950 rpms 235.9 @ 5040 rpms
Torque (ft-lbs) 280.2 @ 3140 rpms 270.3 @ 3150 rpms 281.0 @ 3060 rpms 275.8 @ 3080 rpms

Ignition Comparison:

  • Stock ignition
  • MSD Digital SCIPlus with HVC coil and tach adaptor
Peak Values
All runs with the K&N stock MSD Digital SCI+
stock
boost		 Horsepower (hp) 196.4 @ 5170 rpms 202.4 @ 5040 rpms
Torque (ft-lbs) 220.9 @ 2650 rpms 219.7 @ 2490 rpms
10 psi
boost		 Horsepower (hp) 224.1 @ 5120 rpms 222.7 @ 5170 rpms
Torque (ft-lbs) 270.1 @ 2740 rpms 266.2 @ 2720 rpms
13 psi
boost		 Horsepower (hp) 239.2 @ 4830 rpms 235.8 @ 4950 rpms
Torque (ft-lbs) 276.0 @ 3220 rpms 281.0 @ 3060 rpms

The actual air filter dyno comparison charts.

The actual boost setting dyno comparison charts. MSD Ignition Comparison.

Problems Encountered: The first runs were all done with the stock air filter and air box. There were problems setting the boost controller to hold high boost levels. The peak boost had to be turned down starting with the K&N filter test. As such, the power levels with the stock air box at the high boost setting will be higher than if the boost controller hadn't been touched.

Conclusions: If you are still running the stock air filter and air box, you are seriously choking your engine. While the improvements for the NA are minor, there is a huge improvement in the upper RPMs for all the aftermarket cone filters. When you consider the cost of the filter and the cleaning and oiling solutions, the Team Green filter is still cheaper than the generic K&N cone filter and provides comparable power increases. Contact Mary or Dan at The Specialty Shop. Also, the stock ignition is more than adequate for at least the first 250 rwhp the car will make. But the MSD ignition does add some nice features in setting a launch RPM.

Afternote: I hope to have charts that will show the differences in power increases accross the entire powerband instead of peak powers similar to the NA charts. At this time, the software I have is not capable of giving me the raw data. After talking with Dan, and him talking with MSD, they feel I should play with the timing. The multiple spark discharge may allow me to retard the timing a little and get more power or a wider power band at higher boosts. Stay tuned for more timing related runs in the near future.