Fix up "Flow Map Calculations" Sticky? Options

[Dr_Tweak]

I was looking through the stickys and was checking out this thread:

"7afe compressor flow map calculations - 7afte Airflow chart with Compressor maps ect"
http://www.6gc.net/forums/index.php?showtopic=28068

And noticed that all the math used for sizing the turbo is way off. Reference this thread:

http://www.6gc.net/forums/index.php?showtopic=31411

I think it should be fixed up because we don't need wrong info posted up in the almighty sticky threads!

Another link for reference:

http://www.gnttype.org/techarea/turbo/turboflow.html



-Doc

This post has been edited by Dr_Tweak: Apr 27, 2007 - 11:13 AM

[Dr_Tweak]

Really? That's interesting, because I have maximum boost sitting right next to me and I just checked the formula on page 27, under airflow rate, and I quote:

"Airflow rate = cid x rpm x 0.5 x E / 1728 = cfm"

I have also calculated, that if we would want to use liters instead of cid, we could use this forumula:

liters x (max RPM) x .5 (4 stroke engine) x (approx. VE) x 0.0353 = CFM

So, if the one posted by pressure is also incorrect, we better fix that up.

-Doc

This post has been edited by Dr_Tweak: Apr 27, 2007 - 11:17 AM