could try some washers under the spring? I did that in a RFL and it seem to help to creeping open after revving
I have a hks and the springs are color coded & rated at different psi depending what your looking to go for..
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| BOV spring question http://4g61t.org/forum/viewtopic.php?f=6&t=36109 |
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| Author: | Smokin n da mirage [ Tue Mar 06, 2012 3:53 pm ] |
| Post subject: | BOV spring question |
I have a Frozenboost type S style BOV and I'm trying to adjust the spring preload... I bought a mityvac handpump and with just the light spring in the BOV it opens way too soon, like 6 inHg( and the adjustment screw is practically all the way tight) while the bigger spring starts opening at about 12inHg and fully opens at 15... The bigger spring gave me a much better idle but I think I was getting surge... kinda hard to tell since I am recirc'd however whereas the lighter spring it seems like its opening while in boost? My engine vac going by my vac/boost gauge is 13 and using a dedicated vacuum tester, replacing the FPR vac line that goes to the intake manifold the gauge said its 17... I thinking I need to try to find a spring that is a happy medium between the two springs, am I correct? But where to buy springs? Tial sells springs but you are just paying for the name with them, I dont want to spend 30 bucks when I can just get the same springs that tial sells for much much cheaper somewhere else know what I mean? |
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| Author: | Mechacode [ Tue Mar 06, 2012 5:31 pm ] |
| Post subject: | Re: BOV spring question |
The spring doesn't hold it shut during boost, a common misconception. The boost coming through the vacuum/reference line holds it shut against the boost passing through it. If you are getting 13" of vacuum while running, you only need a spring that can overcome that amount. http://www.frozenboost.com/stpg.php?page_id=bov |
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| Author: | Smokin n da mirage [ Tue Mar 06, 2012 5:57 pm ] |
| Post subject: | Re: BOV spring question |
So I need a spring rated at 14 then? So I do need a heavier spring then pretty much? |
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| Author: | king_of_the_street [ Tue Mar 06, 2012 8:17 pm ] |
| Post subject: | Re: BOV spring question |
could try some washers under the spring? I did that in a RFL and it seem to help to creeping open after revving I have a hks and the springs are color coded & rated at different psi depending what your looking to go for..
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| Author: | Smokin n da mirage [ Tue Mar 06, 2012 10:03 pm ] |
| Post subject: | Re: BOV spring question |
Yea I may have to try out some washers, but first I will see if Lowes or Home Depot sells springs that I could try out |
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| Author: | king_of_the_street [ Wed Mar 14, 2012 2:04 pm ] |
| Post subject: | Re: BOV spring question |
did u ever find springs? |
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| Author: | Smokin n da mirage [ Wed Mar 14, 2012 5:49 pm ] |
| Post subject: | Re: BOV spring question |
Quote: did u ever find springs?
No, I will probably look tomorrow at Lowes and Home Depot and report back tho!
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