Callaway Honker Test Data - From the 2008 drag sessions..

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Callaway Chris
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Callaway Honker Test Data - From the 2008 drag sessions..

Post by Callaway Chris »

Wow! :jsmile
First three passes (with stock intake) were made at 6:31pm, 6:40pm and 6:47pm. Then, a Honker cold air intake was installed and three more passes were made at 7:20pm, 7:31pm and 8:41pm. We understand the effects of coolant temperature, oil temperature, and ambient temperature so, when we perform comparative testing, we try to stabilize those variables.

Please note the engine coolant temperature (ECT, in degrees) recorded below:
with stock intake, start and finish of run:
Run A: 223 / 223
Run B: 217 / 219
Run C: 226 / 221
with Honker, start and finish of run:
Run D: 223 / 221
Run E: 225 / 223
Run F: 225 / 221

The "second" pass you mention was actually our last pass of the day for us, at 9:13pm. No instrumentation, but I'm sure it was cooler out and that helped. That run was not intended to be used for comparison to the earlier runs.

We'd love to see you at NED, but I don't think we'd be repeating this test session. I think we already tested at consistent operating temperatures and recorded actual performance gains.

Here are some of the details about the session from Engineering:

Callaway Test/Development Vehicle = 2008 LS3 M6 Coupe w/ Z51 and NPP (VIN: 1G1YY26W085100836) - OE Calibration
Drag Test Results - October 10, 2007 (Odometer @ start = 281 miles)

Testing conducted at New England Dragway, Epping, NH. All data as observed w/o correction. See recorded atmospheric conditions below.
Tire for all runs = M.T. E/T @ 13psi cold. Launch @ 4800rpm - Shift @ 6400rpm all runs (indicated). Traction System and Active Handling OFF all runs.

OE - Dry = 64°F / Wet = 61°F / Baro = 28.54 inHg (time of day / 60'(s) / 1/8M(s@mph) / 1/4M (s@mph)

Run Ref A = 6:31pm / 1.740 / 7.697@91.74 / 11.941@115.80 : IAT(°F) - ECT(°F) @ start / finish = 91 / 70 - 223 / 223 (MAP = 98 kPa @ finish)
Run Ref B = 6:40pm / 1.822 / 7.743@91.99 / 11.974@116.16 : IAT(°F) - ECT(°F) @ start / finish = 91 / 70 - 217 / 219 (MAP = 98 kPa @ finish)
Run Ref C = 6:47pm / 1.728 / 7.709@91.71 / 11.951@115.89 : IAT(°F) - ECT(°F) @ start / finish = 93 / 70 - 226 / 221 (MAP = 98 kPa @ finish)

3 Run Avg = 1.763 / 7.716@91.81 / 11.955@115.95 : IAT(°F) - ECT(°F) @ start / finish = 92 / 70 - 222 / 221 (MAP = 98 kPa @ finish)

Callaway Honker - Dry = 60°F / Wet = 65°F / Baro = 28.62 inHg (time of day / 60'(s) / 1/8M(s@mph) / 1/4M (s@mph)

Run Ref D = 7:20pm / 1.702 / 7.496@93.56 / 11.666@117.88 : IAT(°F) - ECT(°F) @ start / finish = 75 / 63 - 223 / 221 (MAP = 100 kPa @ finish)
Run Ref E = 7:31pm / 1.788 / 7.548@93.92 / 11.704@118.26 : IAT(°F) - ECT(°F) @ start / finish = 73 / 61 - 225 / 223 (MAP = 100 kPa @ finish)
Run Ref F = 8:41pm / 1.766 / 7.528@93.88 / 11.690@118.05 : IAT(°F) - ECT(°F) @ start / finish = 72 / 61 - 225 / 221 (MAP = 100 kPa @ finish)

3 Run Avg = 1.752 / 7.524@ 93.79 / 11.687@118.06 : IAT(°F) - ECT(°F) @ start / finish = 73 / 62 - 224 / 222 (MAP = 100 kPa @ finish)

Conclusion: Callaway Honker vs OE Intake 1/4 Mile Vehicle Performance Improvement (ET/mph) = 0.268 s / 2.11 mph

At the end of instrumented testing, we made one last pass w/ Callaway Honker: Run Ref G = 9:13pm / 1.771 / 7.452@95.24 / 11.562@118.82
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