Just trying to figure out if I need it with my new fuel system. I notice most drag cars don't use it, and most plumb an AN fitting straight into the end of the rail where that thing is..

 

just a funky lookin bolt to hold the banajo on?

 

I believe it's called the fuel pulse dampener.

Absorbs the shock created when the fuel injector closes. Makes the injectors last longer. That's my theory.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Rocket &raquo;</TD></TR><TR><TD CLASS="quote">I believe it's called the fuel pulse dampener.

</TD></TR></TABLE>
It's main purpose is to reduce noise and vibration in the fuel lines.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Rocket &raquo;</TD></TR><TR><TD CLASS="quote">I believe it's called the fuel pulse dampener.

Absorbs the shock created when the fuel injector closes. Makes the injectors last longer. That's my theory.</TD></TR></TABLE>



Fuel pulsation damper.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Rocket &raquo;</TD></TR><TR><TD CLASS="quote">I believe it's called the fuel pulse dampener.

Absorbs the shock created when the fuel injector closes. Makes the injectors last longer. That's my theory.</TD></TR></TABLE>

Wow, you really do learn something new every day... I thought it was just a big nut I love H-T!

 

ok, second question then... what size are the threads of that thing (I assume it isn't an AN fitting..), and/or what size is the banjo?

 

if you got a whole new fule system the end fitting should come with it. at least i know the AEM fuel rails do.

 

I would of never guessed what the hell that thing is.

 

i dont know the size of the thread but the nut size is 22mm on all b series motors.

 

i think i know what it is. I seen someone have that on an integra to keep the fuel from back flowin out of the fuelrail. I think thats what it does beats me

 

Well, I heard it's a combination of those things... It acts as a secondary filter (sucks), dampener, and anti-drainback (maybe). Basically it's a POS, you don't need them. Honda scrapped the idea on D-series motors after OBD-0... It's too restrictive and the fuel system will last just as long without it.

 

well I think that picture was taken on a bseries.

I know my B16A head has one...

 

All performance oriented later year honda's don't have it. It's nothing but a bottle-neck.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 88crx91integra &raquo;</TD></TR><TR><TD CLASS="quote">if you got a whole new fule system the end fitting should come with it. at least i know the AEM fuel rails do.</TD></TR></TABLE>

this is not not true, at least for a b-16- b18c5 heads