vaccaroja Posted November 26, 2007 Share Posted November 26, 2007 I noticed when trying to install my aftermarket greddy BOV that the stock BOV has a re-cerculator attached to it. My question is can i leave that off the intercooler not attached to the bov and just connect the vacume line to the bov and mount the greddy bov in the same place the stock one was? my bov did not come with a re-circulator hose. it just came with two 3 way T connectors, a vacume line, bov with trumpet. the stock one has a vacume line attached to it plus another line that looks like it attaches to the would be trumpet area. Anyone know if i need to leave it plugged in or will it cause engine damage. It appears the stock BOV always re-circulates 100% of the time. 13.6 @ 102 untuned FTW SmartWax - Spec Clutch - Team Scp 1 http://newenglandsubarus.com/ Link to comment Share on other sites More sharing options...
SpawnGT Posted November 26, 2007 Share Posted November 26, 2007 correct. stock recircs 100% of the time. if your recirc hose is not connected to anything there should be something that came with the greddy bov that plumbs up the recirc hose. Link to comment Share on other sites More sharing options...
vaccaroja Posted November 26, 2007 Author Share Posted November 26, 2007 so all i have to do is pug it. and i should be fine... could i plug it on the stock bov... would that cause any damage? 13.6 @ 102 untuned FTW SmartWax - Spec Clutch - Team Scp 1 http://newenglandsubarus.com/ Link to comment Share on other sites More sharing options...
Adamaxus Posted November 26, 2007 Share Posted November 26, 2007 so all i have to do is pug it. and i should be fine... could i plug it on the stock bov... would that cause any damage? who knows, but recirculating air is a good thing. Link to comment Share on other sites More sharing options...
JR Black 214 Posted November 27, 2007 Share Posted November 27, 2007 the recirculation valve keeps the air flowing through the system, and keeps the car from trying to stall out, when it runs "rich"...the reason why it runs rich is because the air flow sensor is before the blow off valve, so the care thinks it is getting "this" much amount of air, when the air goes through the recirc tube it stays in the loop and still gets to the enging, but if you plug the recirc tube and vent-to-atmosphere now the engine isn't getting the air it thought it was when the valve "blows" off. Link to comment Share on other sites More sharing options...
Carter Posted November 27, 2007 Share Posted November 27, 2007 The car WILL stall out. A buddy of mine insisted on trying it. Dangerous if you ask me. Needless to say it was put back immediately. Link to comment Share on other sites More sharing options...
Carter Posted November 27, 2007 Share Posted November 27, 2007 Let me ask a question now that I think of it. Would buying a combination valve, where you can vent/recirc a certain percentage, allow you to force the car to run leaner/richer? Link to comment Share on other sites More sharing options...
vaccaroja Posted November 27, 2007 Author Share Posted November 27, 2007 Let me ask a question now that I think of it. Would buying a combination valve, where you can vent/recirc a certain percentage, allow you to force the car to run leaner/richer? honsetly i can not answer that question. . i was told by my friends who own a couple turbo cars to switch out the stock bov. So i am. 13.6 @ 102 untuned FTW SmartWax - Spec Clutch - Team Scp 1 http://newenglandsubarus.com/ Link to comment Share on other sites More sharing options...
JR Black 214 Posted December 9, 2007 Share Posted December 9, 2007 i've taken the recirc tube off of my blow off valve and have had the car stall out numerous times...Now i have heard from plenty of people with Subies saying that the blowoff valves that are 50%recirc and 50% vent to atmosphere, are really good, so that is your best bet. Link to comment Share on other sites More sharing options...
Silverstar Posted December 9, 2007 Share Posted December 9, 2007 honsetly i can not answer that question. . i was told by my friends who own a couple turbo cars to switch out the stock bov. So i am. You may want to do a little research before you put that on. BOVs don't get you any power, they just get you more noise. If it's power you want, then sell that BOV and get an accessport. Link to comment Share on other sites More sharing options...
speeding_gaijin Posted December 11, 2007 Share Posted December 11, 2007 AVO BOV is modeled after stock, meaning it's recirculating, but it has tighter spring, so more air gets recirculated. Hence, better response, better torque at mid-range rpm, won't get much HP increase with it though Link to comment Share on other sites More sharing options...
AWDxBOOST Posted December 11, 2007 Share Posted December 11, 2007 The car WILL stall out. A buddy of mine insisted on trying it. Dangerous if you ask me. Needless to say it was put back immediately. are you saying it will stall with full vent? if you are then you are wrong Link to comment Share on other sites More sharing options...
CTATV Posted December 11, 2007 Share Posted December 11, 2007 on the topic of BOV's, im looking to get one who makes a good 50/50 BOV for the LGT? Link to comment Share on other sites More sharing options...
whobaru Posted December 11, 2007 Share Posted December 11, 2007 meh, money can be better spent. Link to comment Share on other sites More sharing options...
CTATV Posted December 11, 2007 Share Posted December 11, 2007 yeah i just want it for the whoosh to be totally honest. but i dont want a crappy idle. Ill admit it, shame me.... shun Link to comment Share on other sites More sharing options...
lvethesnow Posted December 11, 2007 Share Posted December 11, 2007 on the topic of BOV's, im looking to get one who makes a good 50/50 BOV for the LGT? GFB hybrid. you can run it 100% recirc 100%vta or 50/50. ive been running mine 50/50 no problems History does not entrust the care of freedom to the weak or timid People sleep peacefully at night cause rough men stand ready to do violence on there behalf Link to comment Share on other sites More sharing options...
Stewy612 Posted December 11, 2007 Share Posted December 11, 2007 yeah get the GFB...i think that a BOV is money well spent on this car if you're say Stage II or above because our stock plastic BOV's leak, however it should be on full recirc and not venting... Link to comment Share on other sites More sharing options...
whobaru Posted December 11, 2007 Share Posted December 11, 2007 now that makes sense...isn't our bov plastic or something? Link to comment Share on other sites More sharing options...
lvethesnow Posted December 12, 2007 Share Posted December 12, 2007 now that makes sense...isn't our bov plastic or something? yes it is. when i changed mine to the gfb i broke my t fiiting for my boost gauge. thanks god i had an extra in my trunk storage History does not entrust the care of freedom to the weak or timid People sleep peacefully at night cause rough men stand ready to do violence on there behalf Link to comment Share on other sites More sharing options...
CTATV Posted December 12, 2007 Share Posted December 12, 2007 im looking at buying an 05 legacy from a board member if all looks good and a price can be agreed on and it is already stage II so I guess I would fall into this cat. yeah 50/50 seems the way to go I just what a nice little pshhht that I can also stop if it bothers me Link to comment Share on other sites More sharing options...
whobaru Posted December 12, 2007 Share Posted December 12, 2007 My AEM CAI gives me juuust a hint of "pshhht" that makes me smile, but can be ignored. Link to comment Share on other sites More sharing options...
CTATV Posted December 12, 2007 Share Posted December 12, 2007 so for 50/50 valves theres the GFB one, anybody else make one? Link to comment Share on other sites More sharing options...
-TT- Posted December 12, 2007 Share Posted December 12, 2007 Avo Link to comment Share on other sites More sharing options...
WTBmoreboost Posted February 2, 2010 Share Posted February 2, 2010 okay i wanted to try something today , i disconnected my recirc tube , and plugged it off with a 1" copper tube "Cap" , so using the stock recirc valve i have a BoV , but the problem , give it gas ( rev it ) and upon returning to idle it would die , i can put it in S or S# and it will keep itself going because of the Ecus attitude change , but my question is . if i get an accessport and somehow find the right MAP will it run correctly or is there anything else i can do , is it a bad idea to do this , ive had it die once so far , when i came to a stop sign Link to comment Share on other sites More sharing options...
E-Tank Posted February 2, 2010 Share Posted February 2, 2010 A full vent to atmosphere BOV will cause a rich condition that can make the car run funny in some situations. Ricirc valves like the stock BPV send the vented air back into the intake post-maf. This way the ecu is able to maintain it's desired AFR because it is not losing air that has already been metered by the maf sensor. On our cars a full VTA BOV will not cause you to stall out, although you will run a little rich when you lift off the gas at full boost. If you have a cattless TBE you might even shoot some flames. I have an HKS BOV and have had it set to recirculate and vent to atmosphere. The car runs FINE either way. The only significant difference is noise. /thread Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.