what is the little spring on the inside for? like if i'm only going to run a max of 7.50 psi on my turbo which spring should i have? thnx for any help

 

The internal spring doesn't deal w/ the pressure you're going to run on your setup....it is determined by the amount of vaccuum at idle. Most Hondas take the 11lb spring. If you go to Tial, they have the chart

 

guess i need to get a different boost gauge cause it only reads boost only. k i'll make sure i get an 11lb spring

 

Engine Vacuum Reading - Use Spring

Between:
-22 and -23 in/Hg - 12 Psi (-24 in/Hg )
-18 and -21 in/Hg - 11 Psi (-22 in/Hg )
-14 and -17 in/Hg - 9 Psi (-18 in/Hg )
-10 and -13 in/Hg - 7 Psi (-14 in/Hg )

 

that tial blowoff is the most controversal blow off valve out t their you will get many different answers on the spring rate

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by h22 civic &raquo;</TD></TR><TR><TD CLASS="quote">that tial blowoff is the most controversal blow off valve out t their you will get many different answers on the spring rate </TD></TR></TABLE>
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by alpha &raquo;</TD></TR><TR><TD CLASS="quote">Engine Vacuum Reading - Use Spring

Between:
-22 and -23 in/Hg - 12 Psi (-24 in/Hg )
-18 and -21 in/Hg - 11 Psi (-22 in/Hg )
-14 and -17 in/Hg - 9 Psi (-18 in/Hg )
-10 and -13 in/Hg - 7 Psi (-14 in/Hg )</TD></TR></TABLE>

I dont know how it could get any simpler than that....

 

pretty simple haa ok i just built a brand new fresh k series turbo what valve do i go with???????

 

no valves but you can go with a 50mm bov

whatever vacuum your motor is pulling just compare it to the chart on top of your post

 

i have the 7psi spring in mine and it works fine for me..... 20-22vac at idle and so far up to 30psi boost...

 

thnx for the for the info so far guys. i bought a better boost gauge that shows the vaccum. and I'll just read the chart accordingly.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 8herout &raquo;</TD></TR><TR><TD CLASS="quote">no valves but you can go with a 50mm bov

whatever vacuum your motor is pulling just compare it to the chart on top of your post</TD></TR></TABLE>
did ya see the part that said brand new fresh motor meaning never started so dont know what it is vacuming ...thats the prob people are having they are told to buy one valve then start having probs when their car aint vacing what they originally thought

 

oh god, good luck on your valve

 

Most Honda's will want an 11 Psi spring