I am trying to calculate the different cfms.pressure/temps and whatnot in an attempt to see what size turbo would best suit my applications; however, the site i was using as an example and for equations has a huge gaping flaw in it. The website is from another forum which got it from clubsi i think:
http://www.tunerfriends.com/fo...=5508

and it is incorrect on both websites...can anyone else help me find the right way to calculate the right outlet temperature. Using their example the answer is wrong let alone the answer I received using my numbers and when trying to put my 2 years of engineering education into it PV=nRT gave me a ridiculous temperature change that is not comparable to the article...i tried search but was not helpful.

TIA

 

ok to bump and elaborate...

i have found different variations of this same article all over the place and want to point out the thing i think must be wrong

in the T2=T1(P2/P1)0.283 is the 0.283

does anyone have any sort of guess as to what this number is derived from?

 

this is frustrating...well at least i learned about what a rankine is...please anyone have an idea?

 

i'll be honost...I have no F-ing idea. sorry

 

this sucks...thanks all for taking a look

 

http://www.not2fast.com
http://www.turbobygarrett.com

Both sites should get the job done.

 

thanks, i also found this site with a simpler program...does anyone know of it? its quick and i was wondering of its accuracy...if you get a minute give it a try and see if it matches what youve found out about your own turbo setups

http://www.turbofast.com.au/TFmatch.html