VR Super Street "Real World"
cold air test versus the OEM air box.

In our original Camaro tests we showed how ram air works to chill the incoming airflow from wind shear, altering the density altitude inside the intake manifold plenum.

For this test we used the OEM air box and OEM air meter location versus an air temperature sensor relocation or "breakout." This allows us to provide air temperature readings from the front of the throttle body.

Both of these combinations were tested versus the VR Super Street in real world conditions.

The results speak for themselves.


The Control

These are the basic control/conditions during the test.

Test Time is 12.30pm - 2.30pm
Date 09/08/2010
Physical location is approximately 30ft above sea level
Air temp = 97-102 deg
Barometric pressure = 29.94
Relative humidity = 63%
Relative D/A = 90.77%
Density Altitude is +3,274ft above sea level.

Test equipment:
• Data Logging - EFI Live
• Backup Test Systems - Omega Manometer calibrated for CFM, Air Temperature and Velocity
• Hand Held Weather Meter for measuring air velocity and temperature (see pictures)

*All testing was conducted in accordance with standards set forth by the SAE

We took air temperature readings around the car, as well as, in front of the grill. We also took readings in the sun and the shade during cloud cover next to the car.

Front Grill Readings - 102.5 deg - 104.3 deg

Front grill readings (102-104 deg F). The concrete is hotter than you think! Any experienced racer will tell you, pavement is always hotter than ambient temp.


Radio temperature versus actual temperature. Inside the vehicle with door open and car running - 100.3 vs 87

Ambient versus the cars radio temperature readings (the OEM radio reading is not acurate for use to monitor intake air temperatures, for comparision purposes.) We see this on many vehicles.


Cloud cover - 97.7

No cloud cover - 101.2 -102+

Now for the meat and potatoes!

Intake air temperatures using the OEM air box versus the VR Super Street during city drive and WOT operation. EFI live logs are displayed from the runs.
Test #1 - The OEM box

Breakout - Air Temperature Sensor Relocation

With breakout, this allows us to locate the air temp sensor in front of the throttle body. This will give you a true picture of heat soak in real world conditions, from the OEM meter to the throttle body this is a mere 14 inches away!

Now it is time for the VR!


That's a solid +9 - 10 degrees at the sensor, and an additional +50 - 70 degrees at the throttle body!

Once again VR shows that even in some of the worst heat conditions, the self intercooling
efficiency of a true ram air system is simply untouchable.

Would you see this on the dyno? NO!

The competition wants you to think that you can drive around
with the hood open and a fan blowing in front of the car!

Will the ECU retune for this cooler denser air change?

You can trick the sensor but not the engine! The ECU re-learns changes in D.A./Temp in seconds.


At VR we tested all of the following systems:
(in no particular order)

Lingenfelter Race Unit
New Era Performance
Breathless Performance

Not one of these even came close to the OEM box in terms of controling heat soak in real world driving conditions. Some did not out-flow the OEM box (see flow data page)

As we have said for years
"There is No Air Colder than Ram air!"

* Test results may vary depending on driving conditions.
* Test results may vary in a different environment, however these are the results frim this particular test.