NefMoto

Technical => Tuning => Topic started by: terminator on October 03, 2014, 04:42:59 PM



Title: Intake manifold
Post by: terminator on October 03, 2014, 04:42:59 PM
I'm going to install another intake manifold with larger capacity. May be someone has already done the same?

Should I change KISRM? If yes how can I know the volume of intake manifold?

P.S. I dont want to fill it with water  :)



KISRM = zkorr/ (Vs/Vh *z)

Vs......volume of intake manifold (from throttle blade to inlet valve)
VH......engine capacity
z.......number of cylinders
zkorr...Faktor for correcction.................................0.95 at z = 6


Title: Re: Intake manifold
Post by: flaattire on October 13, 2014, 11:32:08 PM
Had you considered asking the manufacturer of the new manifold?


Title: Re: Intake manifold
Post by: TijnCU on October 14, 2014, 06:47:52 AM
Or, if corrosion because of water is your only concern, fill it with gasoline and measure.


Title: Re: Intake manifold
Post by: majorahole on October 14, 2014, 10:52:41 AM
small foam beads, like from those big chairs filled with them


Title: Re: Intake manifold
Post by: ddillenger on October 14, 2014, 12:47:44 PM
Fill it with water if you care for accuracy.


Title: Re: Intake manifold
Post by: terminator on October 14, 2014, 05:27:03 PM
Thanks I think I will) Also pipes are bigger. I asked because I dont know is it very important or not.


Title: Re: Intake manifold
Post by: carsey on October 15, 2014, 10:58:26 AM
nah,  I wouldnt say its important.


Title: Re: Intake manifold
Post by: nyet on October 15, 2014, 11:04:25 AM
Agreed, not that critical.


Title: Re: Intake manifold
Post by: terminator on October 15, 2014, 11:16:58 AM
I think you are right, because many people and me too install bigger cooler without software modification.