Proper Way to crush BOV [Merged 7-8] crushing crushed 1G

[91EclipseMan]

is there a proper way? if i dont crush it, and i pull the large tube off, will it hurt the car in anyway? i know i could go out an buy one, but i wanna see how much i can get outta stock car. thanks

 

[turboholic]

Originally posted by 91EclipseMan
is there a proper way? if i dont crush it, and i pull the large tube off, will it hurt the car in anyway?

-By pulling the big tube off I guess you mean venting to the atmosphere, I'm not going to start another thread on that subject, so do a search.

-I crush my BOV to open at 19psi, I tape a 3/8" nut on the cap of the BOV then set it side way on a bench vice, attach a automotive hand pump with gauge on the small nibble, slowly close the vice to crush the cap of the BOV, and keep checking with the hand pump until it release air at ~19 psi.

 

[91eagle_tsi_awd]

mine is crushed and i vent to the atmospehere.#### is fukin loud and my car runs fine

 

[Bohrn]

you are able to vent your 91 to the atmosphere??

Are you running any ECU mods?? Like a 2g maf, or maybe a SAFC?

Does it run totally fine?? No real richness at shifts? No crappy mileage? No stalling inbetween shifts?

If so, good on ya, the rest of us can't do it.

Tho, with my current mods, my BOV does sneeze pretty good under hard acceleration when I let off. Not too loud, but you can hear it release.

 

[nitrouskris]

at my job i get about 1 call a week on what is the right way to crush a 1gen bov. so who thinks they have the best way to crush the 1gen bov?

 

[jbillakdsm]

I would personally tell people to not do it. I've done a lot of reading on the matter and it seems that people who do only end up having problems with it later. There is another mod you can do that will hold higher pressure. You just have to drill and tap the venting hold inside externally. There is a whole page on how to do this. Just look up Dodge BOV mod.

 

[4ged4G63]

Originally posted by nitrouskris
at my job i get about 1 call a week on what is the right way to crush a 1gen bov. so who thinks they have the best way to crush the 1gen bov?

dude, don't crush it you will break it

 

[mlopez]

Originally posted by nitrouskris
at my job i get about 1 call a week on what is the right way to crush a 1gen bov. so who thinks they have the best way to crush the 1gen bov?

Step on it with at least 200lbs.

 

[4ged4G63]

run over it

 

[RipperXX]

......did you ever look at the VFAQ page first? they tell you how to mod it correctly without crushing it... you can also go back to the way it works normaly just by takine a hose on or off..

it dont take much time and you should have most of the tools so do it the right way...

 

[bosljeff]

Originally posted by jbillakdsm
I would personally tell people to not do it. I've done a lot of reading on the matter and it seems that people who do only end up having problems with it later. There is another mod you can do that will hold higher pressure. You just have to drill and tap the venting hold inside externally. There is a whole page on how to do this. Just look up Dodge BOV mod.

Has anyone you know tried this? Does it work? What is the set screw for anyway? http://www.thedodgegarage.com/turbo_bov_mod.html

Please tell me!

Later

[email protected]

 

[DrBrown]

I am using a 1G DSM blow off valve on my project car and to be honest I have no idea whether its crushed or not crushed. What the heck is the difference??? All I know is a freidn of mine is a DSM guy and says the bov sounds NOTHING like the ones he has used and heard. This thing is so high pitched sounding that its crazy. The turbo whistles and all but the bov isnt much of a lower tone than the actual hair dryer whistle. So he thought it was a possibility it could be a crushed one whatever that meaqns. God am I a turbo newbie Any ideas on the details of this thing? Thanks for your help.

Dan

 

[Defiant]

Crushing raises its release pressure, because you're increasing the tension on the spring. You can tell when they're crushed by the look of the top steel stamping. If it's not flat, and is slightly caved-in (around the bottom edge of the top quarter-sized button, it's been crushed.

If you're trying to win some race with sound, turn up the stereo.

 

[DrBrown]

Thanks for the info, and Im not trying to win a bov volume contest . I would prefer it be more quiet like a sleeper. Mine is crushed then because there was a little indentation on the top. This must be why it sounds different than the others. Anyhow thanks.

Dan

 

[kpt4321]

Can you measure how much of a space there is between the manifold reference port, and the body of the BOV? It's fine if you measure from the bead on the port, in fact, stick a ruler or feeler gauge in there to see. It's probably a couple millimeters, between 0 and 6 or so.

I can tell you if it is crushed if you tell me that!

...Kyle T.

 

[dsmstunna]

I just got BOV alittle while ago, still waiting on the UICP to put it on. but I don't rember the guy telling me it was crushed but there is about a 1/2 or so cirle on the top center of the bov were it looks like somebody took a stocked and hit it with a hammer and the middle is alittle lower. I wasn't sure if it was crushed or not i just figured it wasn't because he never mentioned it and the one side of the smaller cirlce is lower than the other side so i just figured it had slight cosmetic damage. but from what your saying it sounds like its crushed. is it safe to have s crushed BOV on t-25? I think that turbo welll hate me after that. if i can even get it to pop

 

[Defiant]

Unless it's crushed to death, it should still release alright- that's done by vacuum. Usual method of crushing is to put it in a vise with a socket on the end.

 

[DrBrown]

Yes I am pretty sure its crushed now. But I cant get at it to measure because my setup has the BOV places in a very small place. But I do remember noticing the top of the actuator/solenoid looking thing had an indentation like it had been pressed in a vice or hydro press. Or something of that nature, as long as it works right and relieves the presure I honeslt ydont care what it sonds like. But it is cool going from a regular probe to a boosted one. WOW do these cars respond well to boost

 

[bosljeff]

Well, I did the procedure on this page

http://www.thedodgegarage.com/turbo_bov_mod.html

and so far I am amazed. Extra boost, doesn't leak, an a slighly niftier sound, but not tacky. I'm getting a boost gauge asap just to play it safe and trying a selenoid set up that allows me to go from quick release BOV, to whatever type of BOV you want to call it after this mod.

Anyone else try it?

 

[CvicKila02]

I looked at that link that u posted bosljeff. Now when u do that mod to your BOV were do you route the new port that u made. It says that you can leave it vented to the atmosphere or conect it. So i am just wondering what you conect it to?? this may be a stupid question but i wana try this mod.

 

[turbotalon92]

I crushed my bov on the old car with a vice. then I calibrated it with a sledge hammer. worked great for me, 26 psi all day long.

 

[bosljeff]

Here's what I finally did:

I performed the procedure and my BOV ended up looking exactly like the one did in pic at the final step. Now there are 2 ways the BOV can function- 1. The "new" way in which it is much stronger and much more resistant to leaking. When you are set up like this, you do vent that new port (the one made from the brake tube) to the atmosphere. 2. The second way it can function is "quick release" which is essentially back to normal. To do this, I added and vacuum port (nipple, whatever you want to call it) coming off the Upper IC pipe as close to the BOV as I could. I got a brass one and used the JB Weld to attach it. When I want to return to a "quick release" BOV I simply have another vacuum hose (very snug) that connects the nipple on the UIC pipe to the new port (brake pipe) on the BOV. That way, that brake pipe port gets a little pressure from the UIC pipe and creates "premature" pressure on the BOV making it leak slightly before the full blow off part. Just make sure that when you are doing the "new" way, you have a cap on that nipple you put on the UIC pipe and feel free to vent the brake pipe to the atmosphere.

With this mod I can definately feel the extra boost and you get an aftermarket BOV sound.

I am also tempted to maybe rig a filter of sorts to that port that is vented to the atmosphere.

Let me know how it works. If you need pix, I will see what I can do to get ahold of a dig camera.

Originally posted by CvicKila02
I looked at that link that u posted bosljeff. Now when u do that mod to your BOV were do you route the new port that u made. It says that you can leave it vented to the atmosphere or conect it. So i am just wondering what you conect it to?? this may be a stupid question but i wana try this mod.

:

 

[CvicKila02]

bosljeff, thanks for the reply. I think this weekend i am going to my local junk yard they have a 1G BOV on one of the cars there. I don't want to do it to the one i have on my car just in case i screw up or need to drive my car that day. Well thanks for the info i'll pm u if i run into any trouble.

-Dave

 

[H.A.R.T 4G63DSM]

I just want to know how do you "CRUSH" the 1G BOV?

 

[Boosted98gsx]

Put it in a bench vise, and squeeze it together. The objective you're going for is puching down the greed top, thus compressing the spring inside.