Quote:

I use AutoCad and I work at a machine shop with a water jet, I might be able to talk the boss into letting me cut out a 'Paper Doll' manifold Prototype, might need some expert input to calc total runner volumes and lengths, anybody have the latest version of Engine Analyzer Pro I could borrow for a week?





Take a look at these sites for info on Helmholtz resonators, runner lengths, runner areas, runner taper, plenum volumes,etc .

http://www.newcovenant.com/speedcrafter/calculators/intake.htm

http://www.bgsoflex.com/intakeln.html

http://www.grapeaperacing.com/GrapeApeRacing/tech/inductionsystems.pdf

http://www.mecc.unipd.it/~cos/DINAMOTO/risuonatore/risuonatore.html

http://www.eng.fsu.edu/~shih/eml4421/student%20presentation%20EML%204421/manifold%20tuning.pdf

http://www.autospeed.com.au/cms/article.html?&A=0122&P=6

David Vizard has written books that cover this subject also.

Martin




In theory, there is no difference between theory and practice. In practice, there is.