[sam0218]

does anyone no how much cfm a d15b2 naturally consumes? thanks

 

[areskzc]

air? are you willing to calculate for bigger delivery?
that's basically an answer that a MAF could tell.

 

[sam0218]

i was just curious on how much air it consumed. i dont think i have a MAF. its a 91 civic dx hatch

 

[Mixelplix]

I think I have the calculations to do that... let me see for you.

-Des!

EDIT:

d15b2 is 1493 CC's

1 CC = 0.0610237441 CU Inch

1493 * 0.0610237441 = 91.1084499413 cubic inches

(CID*RPM)/3456=CFM

Max RPM appears to be 6800

so:
(91.1084499413*6800)/3456= 179.26431CFM at 100% volumetric efficiency

Real world engines are between 80%-90% volumetric efficiency

so:
179.26431 * 85% = 152.3746635 CFM


152.3746635 CFM is what your motor uses at 6800 RPM.

 

[areskzc]

I think I have the calculations to do that... let me see for you.

-Des!

EDIT:

d15b2 is 1493 CC's

1 CC = 0.0610237441 CU Inch

1493 * 0.0610237441 = 91.1084499413 cubic inches

(CID*RPM)/3456=CFM

Max RPM appears to be 6800

so:
(91.1084499413*6800)/3456= 179.26431CFM at 100% volumetric efficiency

Real world engines are between 80%-90% volumetric efficiency

so:
179.26431 * 85% = 152.3746635 CFM


152.3746635 CFM is what your motor uses at 6800 RPM.

SWEET!

 

[sam0218]

dude thats nice!! thanks a lot man