i opened up the bov and took out the smaller of the two springs, and put it back together, now when i drive it blows off exactly when i let off the throttle. Before it would blowoff like a second after i did. but the weird thing was it would make this really high pitched electronical beep noise only when i boosted hard which didnt sound right, was it suppose to do that?
#82205, "RE: greddy type s mod..." In response to Reply # 0
Yes, mine does that too. Sort of like at the end of the whistle it makes a sort of 'tink' noise, like metal on metal or like yo said an electronic beep. My buddy's GSR-T does the same thing with his Tial BOV but like of the freeway, cruising when he lets off the gas. You might wanna check also if it's open at idle, mine is but closes almost instantly when the throttle is tapped. I don't mine cuz I only boost a couple pounds and it's worth the BOV sounding off at 1psi.
#82243, "RE: greddy type s mod..." In response to Reply # 2
Ase you losing pressure through your BOV whil driving now. As long as it doesn't open before you let off it's cool. I have heard that some people take out the spring and have a boost leak after that.
#82253, "RE: greddy type s mod..." In response to Reply # 3
as far as i could tell i am not. i rev it up and everyhign and until i let off the throttle, it dont blow off anything out the port, i put my hand over it to check. and it seems to be more responsive this way and eliminates that high pitched beep.
#82265, "RE: greddy type s mod..." In response to Reply # 4
i am having the exact same problem with mine the low boost fluttering how many turns on the adjustment screw did you end up with after you took the spring out
#82290, "RE: greddy type s mod..." In response to Reply # 7
if you take the screw out, and then put it back in and start tightening it, right until there is pressure from the plate inside the bov, which i would assume is loose because most of the screw is still exposed.
#82310, "RE: greddy type s mod..." In response to Reply # 9
Originally posted by baxsom i didnt have any luck with the spring mod it was so loose that it wouldnt hold boost for some reason so i put the small spring back in and put it back about 6 turns out then i did the lower nipple hookup it seems to have fixed my fluttering problems it blows off a lot quieter with no flutter and it holds boost i would try this mod also
#82317, "RE: greddy type s mod..." In response to Reply # 10
so i should plug my vac line into the lower nipple on the bov? i put the spring back in my bov so both are there, now it doesnt blow off at all and its set as soft as possible, all i get is compressor surge.
#82326, "RE: greddy type s mod..." In response to Reply # 11
it isnt a technically vacuum line like the one that goes to the upper nipple it is the line that goes from the compressor outlet to the wastegate actuator or in my case from the compressor to the boost controller switch back to the actuator i just put a T into the out line and then to the lower nipple
i have read a lot of people say do it others say not to for me it worked so i am leaving it
#82382, "RE: greddy type s mod..." In response to Reply # 14
Check a post I made about BOV flutter. Jamesman posted a nice diagram that shows exactly where they go. If you don't have them in there you will leak boost. It is also only good for 12 psi, so if you run 12 or higher, I would go back in and take them out.
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