how mant psi can my motor handle? b16a 99 civic si, w/ walboro in tank 255 fuel pump, stock injectors, & fmu. what fmu ratio should i use? thanks

 

I wouldnt go anything over 6-7psi with a 12:1 fmu on that setup..

 

ok ima run 7 psi then. how much extra horse power will i get?

 

you should get about 235 @7PSI. not too sure if thts correct but somebody told me a formula on how to estimate HP with a set PSI:
X=PSI
Y=engine base HP
X /14.7=___+1=__xY= estimated HP
hope that helps

 

thanks, i'll be extremely happy with anything over 200 wheel horse power.

 

hey jeffcivic can you simplify the formula. i'm not too bright at math. x/14.7=___ + 1= ___xy = est.hp
does that slash between the x & 14.7 mean to divide? & does the result added to 1 next to the xy mean to multiply everything?

 

yeah

 

hey project teg did you try the formula? how did u do it? my numbers come out to a thousand something horses.

 

i did it just like it said, the / means to divide, and the small x at the end means to multiply. your first number will be a big decimal, then you add a 1 in front of it, then you will have 1.blahblahblah, then you multiply that by your stock horse power. i have an ls which is 142 hp, with the equation, i got like 228.abunchofnumbers, at 9lbs. of boost.

 

ok i got it now. i confused the small x for the x that means psi. thanks