anyone know the volumetric efficiency for b18c?
i've looked but i can't find it. is it like 90%?

 

bumpage!

 

try posting this in the tech section

 

Back when I owned my Prelude I did a lot of searching to find out what the H22's VE was.

People will say that in most cases peak VE occurs at peak torque RPM and it is around 70-80% VE, and in most cases that is correct. However VTEC motors are the exception, and they usually have peak VE happening at around peak HP RPM. According to http://www.autospeed.com the peak VE for an H22 is 102% occuring at 7000 RPMs, which is alsowhere the HP peaks at. And for an S2000, the peak VE is 112% which occurs at around 8000 RPM. The SAE did a paper on this and it was the engineers from Honda that found those VE numbers.

http://www.autospeed.com/cms/article.html?&A=1127

Now I know you asked about a B18C, but I'm sure the VE for the B18C is somewhere between 102% and 112% (probably closer to 102%).

HTH

 

For a 1.8 making 200hp at 8000rpm, you get a VE of 103ish. Do your own calculations with this VE calculator:

http://www.coe.uncc.edu/~mdkeena/EngineVE.exe