Dyno's and Altitude

[mountainpete]

Hi all,

With all the dino results shared lately, does C1 calculate the hp to sea level or at Calgary's level (approx 3400 ft)?

With a Turbo the differences aren't as big, but with a non-turbo it can be up 5-9% per 1000 ft. So do you think that some of the results shown would be higher if the test was done in Vancouver or LA?

Pete

[R_Ethug]

all i know is those guy's numbers were about 10HP off what most people dyno in cali.. but i'm never talking dyno again so i'll shut up now

[mountainpete]

Originally posted by lsc2g
all i know is those guy's numbers were about 10HP off what most people dyno in cali..

That's what I was thinking too... so should the results be " xxx hp at 3400 feet"?

[Holksvagon]

Originally posted by lsc2g
all i know is those guy's numbers were about 10HP off what most people dyno in cali.. but i'm never talking dyno again so i'll shut up now

LOL thats funny, not talkin Dyno.... Ryan its all in good fun man... :hangloose

[Simon]

ive heard its about 3% per 1000ft for turbo cars

[1.8Trip]

Try this:

http://home.austin.rr.com/turbolexus..._Dyno_Calc.htm

Archived weather data:

http://www.climate.weatheroffice.ec..../canada_e.html

Multiply the "Required Dyno Correction Factor" by your dyno result if you have turbo and the "Normal SAE NA Correction Factor" by your dyno result if you have a non-turbo.

[Kor]

Deja Vu.

[mountainpete]

Interesting links Neil... thanks.

So does the C-1 dyno result already compensate for this? If it doesn't, that would make a 178/whp score a lot closer to 200.

[Holksvagon]

I have no idea.... i wish i did though

[R_Ethug]

I'll talk dyno this spring dale

[Holksvagon]

Heheheh..... Ryan....... Man u better hit 200 whp with that revo shizzy

[R_Ethug]

nah not that high unless i did some crazy tuning.. but I hope to hit 190+ .. i dunno right now i don't care/know cuz i don't even have it

[Holksvagon]

true enuf..... 185-190 is a good # though

[MarkL]

Dyno tests should automatically be compensated for elevation. If not, the operator's doing something wrong.

Keep in mind that different types of Dyno's will produce different numbers all other things being equal.

[QuA]

Hmm so non-turbo'd cars are even worse at higher altitudes?