tom_1593 Posted January 31, 2012 Share Posted January 31, 2012 Ok just a quick question. I have a Greddy type s bov and it has 2 pipes coming from it. The bottom one is blocked off. Where should it go. I read something about a surge or something. Not sure. Any ideas anyone? Quote Link to post Share on other sites
Glanza_cl Posted January 31, 2012 Share Posted January 31, 2012 Its not needed really, the lower nipple *haha nipple* just helps realse the valve earlier by inflating the lower half of the diaphragm. This will stop surge as its realising the excess pressure off throttle before it can reverse direction back towards the turbo compressor wheel (flutter). You wont be running enough boost or building enough pressure to warrant it really but it wouldn't harm connecting it up to another vac source (would need to be a separate vac source to the top nipple) Quote Link to post Share on other sites
tom_1593 Posted January 31, 2012 Author Share Posted January 31, 2012 Cheers that helps a lot. Which Vac source could I use for the bottom nipple? Quote Link to post Share on other sites
Amjad Posted February 9, 2012 Share Posted February 9, 2012 I'd also like to know, trying to figure out why my DV doesn't sound quite right before I order a new diaphragm! Quote Link to post Share on other sites
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