first off I searched and I found the thread https://honda-tech.com/zerothread?id=582898 and it was very helpful.

I understand the why you would want this setup to avoid starvation in turns or hard launchs but I dont understand a few other things.

Now on this http://toyotaperformance.com/surge_tank.htm link they are diagraming about how to setup the hardware, but I am curious if you have to use a low pressure pump to feed the surge tank like they state? Would there be any ill effects to using a walbro 255 or something similar to pump to the surge tank and then use a high pressure/ volume to feed the rail?

Please fill me in I know these are a little basic but I want to be of full understanding before I start this myself.

EDIT: also does anyone know of any safety issues as far as the tank placement... please feel free to share... tia.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by twkdCD595 &raquo;</TD></TR><TR><TD CLASS="quote"> Would there be any ill effects to using a walbro 255 or something similar to pump to the surge tank and then use a high pressure/ volume to feed the rail?

</TD></TR></TABLE>
No it will be fine, just make sure your pump to the surge tank can flow as much or more than your other pump.

I plan on using my existing walbro 255 high pressure pump to the surge tank using stock lines, then the equivalent walbro in-line pump to the rail. I just want to get rid of that ~1/4 hesitation/starvation. Ideally you would run new lines etc..., but I don't think I need that...yet.

 

Thanks... thats what I thought but was not 100%.

Also another maybe dumb question but the pump from the surge tank to the rail will be regulated pressure cause of the regulator but what about the fuel pump from the factory tank to the surge tank... does it matter or will it be regulated to a certain pressure?

hopefully somone understands what I am trying to ask... are people planning on these surge tanks to be underhood or what (curious cause I dont wana die in testing ).

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by twkdCD595 &raquo;</TD></TR><TR><TD CLASS="quote">Thanks... thats what I thought but was not 100%.

Also another maybe dumb question but the pump from the surge tank to the rail will be regulated pressure cause of the regulator but what about the fuel pump from the factory tank to the surge tank... does it matter or will it be regulated to a certain pressure?

hopefully somone understands what I am trying to ask... are people planning on these surge tanks to be underhood or what (curious cause I dont wana die in testing ).</TD></TR></TABLE>

The one from the tank to the surge tank is not regulated, it operates at low pressure (which means you can use a cheap holly low pressure high volume pump if you didn't have a pump already)

I plan on putting mine in the engine bay, just check for leaks

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by devnull &raquo;</TD></TR><TR><TD CLASS="quote">
No it will be fine, just make sure your pump to the surge tank can flow as much or more than your other pump.</TD></TR></TABLE>

nuh uh.
I plan on using stock pump to the surge tank and the Big SX pump for the high press/volume side. Since you have a return on the top of the surge tank that only returns when it fills up........and MOST of the fuel from the high press cycle is returned, a stock pump should be fine.