Spoon Sports B&B crate motor DYNO RESULTS!
#62
If the ambient conditions shown on the plot are accurate, then according to this site the CF of 1.20 is correct:
http://wahiduddin.net/calc/calc_cf.htm
http://wahiduddin.net/calc/calc_cf.htm
#63
Registered User
Originally Posted by twohoos,Oct 25 2004, 09:41 PM
If the ambient conditions shown on the plot are accurate, then according to this site the CF of 1.20 is correct:
http://wahiduddin.net/calc/calc_cf.htm
http://wahiduddin.net/calc/calc_cf.htm
Weather Underground says Orlando was seeing a barometric pressure of 29.92in-Hg that day... which makes the correction factor 1.005, not 1.20.
Someone might want to inform Titan that their barometric pressure sensor is hosed.
#65
So summarizing:
- 1.2 Correction factor is wrong should be 1.005 becasue Florida atomospheric pressure
- Spoon Engine is making 250/1.005 = 247WHP not 208 WHP
- Spoon engine is Stock except Spoon Headgasket
- 1.2 Correction factor is wrong should be 1.005 becasue Florida atomospheric pressure
- Spoon Engine is making 250/1.005 = 247WHP not 208 WHP
- Spoon engine is Stock except Spoon Headgasket
#66
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Originally Posted by S2000_Europe,Oct 26 2004, 05:56 AM
- Spoon Engine is making 250/1.005 = 247WHP not 208 WHP
#67
Registered User
Originally Posted by S2000_Europe,Oct 26 2004, 05:56 AM
So summarizing:
- 1.2 Correction factor is wrong should be 1.005 becasue Florida atomospheric pressure
- 1.2 Correction factor is wrong should be 1.005 becasue Florida atomospheric pressure
- Spoon Engine is making 250/1.005 = 247WHP not 208 WHP
(measured whp) * (real CF) = (corrected whp)
Instead, we have:
(measured whp) * (invalid CF) = ("incorrected" whp)
So, we need to work backwards to find the measured whp, and then we can use the true Correction Factor to determine the appropriate "corrected whp".
(measured whp) * (1.2) = (248whp)
(measured whp) = (248whp) / (1.2) = 206.7 whp <-- Measured wheel hp
Now, we need to re-correct that for atmospheric conditions:
(measured whp) * (real CF) = (corrected whp)
(206.7) * (1.005) = (corrected whp) = 207.7 whp <-- Corrected wheel hp
- Spoon engine is Stock except Spoon Headgasket
#69
Registered User
Originally Posted by brogers,Oct 26 2004, 09:20 AM
What is a realistic environment that would give a CF of 1.2?
#70
Registered User
Assuming 29.92 inches Hg air pressure (standard sea level) it'd have to be 309 degrees F in order to produce a correction factor of 1.20.
Category 5 hurrican Andrew in 1992 produce pressures as low as 27.23 inches. (Third lowest ever recorded.) At 77 degrees F, that'd produce a correction factor of 1.087.
To sum up, we will never ever see a correction factor of 1.2.
Category 5 hurrican Andrew in 1992 produce pressures as low as 27.23 inches. (Third lowest ever recorded.) At 77 degrees F, that'd produce a correction factor of 1.087.
To sum up, we will never ever see a correction factor of 1.2.