all i would have to do is put my housing and wastegate from the borken turbo. Then I'll hook jon up with something with some of the money I saved fron this and pay him for his turbo that i broke! Beats spending $300 for a brand new turbo! maybe you should do this too jon? you can always buy the housings on ebay!
but the a/r ratio is the area of the nozzle divided by the distance from the center of the shaft to the center of the nozzle. so how can they know this without housings. im probably wrong but thats what i remember reading in the turbo book.
"The turbine housing A/R (area/radius) ratio is the area (A) of any turbine inlet scroll cross-section divided by the distance from the center of that cross-section to the center of the turbine shaft (R). For any given turbine housing, A and R vary in the same proportions, so all As divided by their corresponding Rs yield the same dividend--which is the A/R ratio."
quote: Originally posted by: Viet "http://www.hotrod.com/techarticles/engine/113_0312_turbo/index1.html# "The turbine housing A/R (area/radius) ratio is the area (A) of any turbine inlet scroll cross-section divided by the distance from the center of that cross-section to the center of the turbine shaft (R). For any given turbine housing, A and R vary in the same proportions, so all As divided by their corresponding Rs yield the same dividend--which is the A/R ratio." this was from hotrod.com-- Edited by Viet at 20:32, 2004-10-27"
some good stuff there. but yea so the a/r is determined by the housing so how can you choose it with the cartridge?
well if you have .60 a/r housing then I think your can use a 60 trim wheel as opposed to having a .48 a/r or whatever I don't believe you can fit 60 trim. I could be wrong I'll try to look into it more, but thats what believe. Or it could be to determine the size of the back plating you recieve if they do give that to you.