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eeterp February-15th-2003 08:22 PM
understanding compressor maps
 
can anyone post a link or guide understanding compressor maps like this one

http://www.turboneticsinc.com/comp_maps/fig1.html

regards

midnightblue97 February-15th-2003 08:37 PM
Originally posted by PseudoRealityX
you need to figure out the CFM your engine needs. Then look at the amount of boost you want to run. You then look on your graph, and hope to god its in the most efficient range.:)
Just for my own knowledge, how do you figure out how much cfm my engine needs??
How about a tech article??

PinkMX-3 February-16th-2003 01:21 AM
Originally posted by midnightblue97

Just for my own knowledge, how do you figure out how much cfm my engine needs??
How about a tech article??
There is a tech article on this very subject. It's in "Maximum Boost" by Corky Bell.

eeterp February-16th-2003 02:26 PM
units on the map. what is the pressure unit on the Y-axis? (p2c/p1c)

The x-axis is lb/hr. How do I convert that to cubic feet per minute (CFM)?


*I'm guessing to figure out an engine's CFM needs you'll need a flow bench.

PinkMX-3 February-16th-2003 06:43 PM
Originally posted by PinkMX-3


There is a tech article on this very subject. It's in "Maximum Boost" by Corky Bell.

eeterp February-19th-2003 01:05 AM
Originally posted by PinkMX-3
Is that your reply? Why bother, unless you're Mr. Bell's publisher. I plan to pick up the book...eventually. Maybe google will offer more insight. sheesh.

PinkMX-3 February-19th-2003 12:38 PM
Originally posted by eeterp


Is that your reply? Why bother, unless you're Mr. Bell's publisher. I plan to pick up the book...eventually. Maybe google will offer more insight. sheesh.
That is my reply, because that is the BEST answer to your questions. I feel that book is the best source for answering basic turbocharger questions like you're asking. Not only will it answer your questions, but it will help you to understand the concepts to answer further questions.

midnightblue97 February-19th-2003 01:42 PM
I plan on picking it up as early as next week perhaps.

eeterp February-19th-2003 06:15 PM
Originally posted by PinkMX-3


That is my reply, because that is the BEST answer to your questions. I feel that book is the best source for answering basic turbocharger questions like you're asking. Not only will it answer your questions, but it will help you to understand the concepts to answer further questions.
Understood. I first thought you were being flippant, but I can see that some of this requires lenghty explanations (like Jesse stated). No sense in rewriting a book. I'll pick up a copy per suggestion. thanks.

SedanMan February-19th-2003 10:07 PM
Originally posted by eeterp


Understood. I first thought you were being flippant, but I can see that some of this requires lenghty explanations (like Jesse stated). No sense in rewriting a book. I'll pick up a copy per suggestion. thanks.
I bought the book. Its very informative and I think you will find the information you need about flow charts.

eeterp March-10th-2003 11:23 AM
Originally posted by eeterp
units on the map. what is the pressure unit on the Y-axis? (p2c/p1c)

The x-axis is lb/hr. How do I convert that to cubic feet per minute (CFM)?


*I'm guessing to figure out an engine's CFM needs you'll need a flow bench.
Ah-ha, the Y-axis is (boost pressure / compression ratio) :)
so the turbo FS-DE guys are looking at

8psi / 9.1cr = 0.879

is a VE of 85% reasonable?

anybody use this website: http://www.turbofast.com.au/tfcalc.html

*BTW, I'm getting THE BOOK in April.........


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