Dyno Results: Alekshop dyno day in Northern California

Today, Alekshop threw a dyno day at Newtech in Hayward, California.  We had a pretty decent turn out and a few surprises.  Alek collected the money, and I collected the dyno results.  I'd say it went pretty smooth.  Then at the end of the day, the dyno operator hooked up his monster Corvette and layed down an insane 885whp and 775wtq.

I brought my portable weather station with me -- the Kestral 4500.  It's a very accurate device.  For each dyno run, I collected the actual weather data in the dyno shop.  Many of us noticed that the dyno results today seemed low.  When I compare the dyno shop weather data on the dyno charts with my own, I think it seems that the dyno shop weather station on the dyno isn't very accurate (or isn't working correctly).  In the chart below, I attempt to correct for that data.  Using the SAE correction formulas (SAE J1349), I used my actual weather data to "re-correct" each of the shop results.  The legend below has the following meaning:

  • Name (DDB).  The person's name, along with the Dyno Database entry.  If you click on the link for the name, you'll be taken directly to the Dyno Database entry.  From within the DDB entry, you can download the Dynojet dyno files and dyno chart.  In the case of the Dodge Challenger, clicking the name will download the dyno files and dyno chart.
  • Temp(F) = Temperature (Farenheit)
  • RelH = Relative Humidity
  • Pressure(Hg) = Barometric Pressure
  • DA(ft) = Density Altitude
  • WHP(unc) = Uncorrected wheel horsepower
  • WTQ(unc) = Uncorrected wheel torque
  • WHP(djc) = Dynojet corrected wheel horsepower
  • WTQ(djc) = Dynojet corrected wheel torque
  • WHP(act) = Actual wheel horsepower
  • WTQ(act) = Actual wheel torque

 

Name (DDB) Temp(F) RelH Press(Hg) DA(ft) WHP(unc) WTQ(unc) WHP(djc) WTQ(djc) WHP(act) WTQ(act)
Dray_M3 83.3 22.30 29.85 1741 350 255 343 250 364 265
Alexshop 81.4 24.30 29.86 1613 360 269 354 264 373 279
Z4Dave 81.4 23.80 29.86 1610 351 260 344 256 364 270
Chris Shades 82.9 23.60 29.86 1714 369 361 363 355 384 375
psuwcc112 82.0 23.00 29.87 1638 322 242 317 239 334 251
noxredna 82.7 22.50 29.88 1679 341 239 336 236 354 248
KZ 83.1 21.90 29.87 1694 338 253 332 249 351 263
Sleeper13 84.6 20.10 29.87 1790 378 304 373 300 393 316
dettinger 84.4 21.20 29.87 1788 353 260 349 257 367 270

About this Entry

This page contains a single entry by PencilGeek published on June 12, 2010 9:38 PM.

Product Review: ESS Supercharged RS-46 Stroker Motor was the previous entry in this blog.

A few recent acceleration tests is the next entry in this blog.

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