Fulcrum

Found a site with a bunch of compressor maps. Hope this helps somebody.

http://not2fast.wryday.com/turbo/maps/all.html#kkk

KFB

nice find.
thanks

Hob684

somebody school a noob on whats important on comp maps? How do you read them? what do you look for?

alwaystootall

go put that in the faq's section

Fulcrum

Basically a compressor map shows how much a turbocharger is going to heat up your charge air when pumping air at a certain CFM and Boost level. Basically if you look at the concentric ovals on the maps; the middle oval is the area of highest efficiency. You want to keeping your turbo operating inside that oval to avoid surging, high intake temps, and overspeeding. Check out this article:

http://www.automotivearticles.com/Turbo_Selection.shtml

It tells you how to use the maps to see if a turbo is right for your engine and boost level

midnite racer x

I don't have my datalogging setup yet but i'm doing my calculations around 100F degees. Is that a decent temp to set the intake air at? My charge pipes are never even warm to the touch they are always cold so thats why i picked 100 degrees.

Fulcrum

You want to use outside air temperature. Air Density/Temp affects turbo efficency. The turbo has to spin faster to pressurize 100 cubic feet of 100 degree air than 100 cubic feet of 70 degree air. Ambient air temp affects turbo rpms, thus turbo efficiency, as air temps change.

I hope I'm explaining this well. I'm not the greatest technical writer in the world.

Honda16hb

anybody know the cfm abilities of my engine, or where I could find that information?

midnite racer x

makes perfect sense thank you sir