BOV mounting

[Anonymous_User]

I had my BOV mounted in the short rubber line between the air box and the t-body. I had modified the rubber to have a nipple, but it wasn't sturdy enough and the rubber hose ripped.

So, this weekend I took a spare lower IC hose and cut it in half. I took a piece of 1 3/4 exhaust pipe and welded a nipple on it and put the hose back together with this in the middle. I ran a 3/4 hose from the nipple to the BOV.

First problem, the motor on my drill press burned up so I had to use a hand dril to drill through the nipple and make a hole in the exhaust pipe piece. Since I only have a 3/8" hand drill, I made a 3/8" hole. Do you think this is big enough to vent the pressure quick enough? I think I should probably open it up to the I.D. of the nipple which is probably about 1/2".

Next, from the lower IC hose to the BOV I have 2 ft of rubber 3/4" hose. Will the length of this hose have an effect on the 'performance' of the BOV?

[Tony Hanna]

I had my BOV mounted in the short rubber line between the air box and the t-body. I had modified the rubber to have a nipple, but it wasn't sturdy enough and the rubber hose ripped.

So, this weekend I took a spare lower IC hose and cut it in half. I took a piece of 1 3/4 exhaust pipe and welded a nipple on it and put the hose back together with this in the middle. I ran a 3/4 hose from the nipple to the BOV.

First problem, the motor on my drill press burned up so I had to use a hand dril to drill through the nipple and make a hole in the exhaust pipe piece. Since I only have a 3/8" hand drill, I made a 3/8" hole. Do you think this is big enough to vent the pressure quick enough? I think I should probably open it up to the I.D. of the nipple which is probably about 1/2".

Next, from the lower IC hose to the BOV I have 2 ft of rubber 3/4" hose. Will the length of this hose have an effect on the 'performance' of the BOV?

I'm gonna guess you'll have problems with the 3/8" hole. I did the exact same thing when I moved the BOV to the hard pipe after intercooling the sundance. Cutting torch was out of oxygen and the arbor was bent on my holesaw, so I used a 3/8" drill bit. I even reamed the hole oversize with the bit and it's still getting some wicked compressor surge now. I'm gonna chuck a burr bit for a die grinder in my hand drill and cut the hole in the pipe out to match the inside of the nipple. Hopefully this solves it.
I don't know about the hose length issue since all mine have been mounted to the IC pipe with a very short section of hose.

[Anonymous_User]

Thanks. I figured I wouldn't be able to discharge enough air through a 3/8" hole quick enough.

Well, now, where did I put my carbide burrs......

[Tony Hanna]

Did you ever get yours straightened out? I took a burr to mine tonight and opened the hole up to the id of the nipple. It helped alot, but it'll still surge a little bit when letting off from higher boost. I find that a bit strange considering the id of the nipple is a little larger than the inlet on the bov.
Oh well, it'll do for now. I'll have to redo it whenever I get ready to replace the stock bov with a real one.

[Anonymous_User]

Naw, i haven't messed with it. Maybe I'll find time this weekend, but it ain't looking good.

[Jackrabbit]

Maybe this will help you?
http://www.jr-ms.com/projectcsxpage26.html
I have 5-6 of these adapters laying around. I only hve 2" and 2.25" right now though. The 2" fits tight on the lower boost pipe of my CSX.

[Tony Hanna]

Maybe this will help you?
http://www.jr-ms.com/projectcsxpage26.html
I have 5-6 of these adapters laying around. I only hve 2" and 2.25" right now though. The 2" fits tight on the lower boost pipe of my CSX.

That's looks sharp. A heck of alot nicer looking than the piece of galvanized pipe welded into a piece of exhaust tubing I'm using now.

Wow, talk about a small world! You're jackrabbitmotorsports on ebay right?
I (ajh3377) just ordered a #14 NX jet from you a few days ago for my solenoid/fogger nozzle extra injector setup.
Great price BTW, Summit wants $8 + $10 handeling fee for a single jet.

[Jackrabbit]

HAHA yup that's me.
I actually have to raise my price on jets due to eBay and PayPal fees.
But they will still be a hell of a lot cheaper than most. Probably about $5-6 shipped.

Your jet ships tomorrow BTW.

-Wade

[GLHNSLHT2]

the hole should be at least an inch, Get the BOV welded directly to the pipe wich should also be 2.25", just heat the lower ic hose a bit and shove it in Use at least a Talon BOV.

[Tony Hanna]

HAHA yup that's me.
I actually have to raise my price on jets due to eBay and PayPal fees.
But they will still be a hell of a lot cheaper than most. Probably about $5-6 shipped.

Yeah, that's still not bad at all. Especially when you consider most places want to tack on a big handeling fee or excessive shipping.

Your jet ships tomorrow BTW.
-Wade

Thanks man!
I kind of wish I'd ordered a few different sizes, but I think the .014 is about as small as they come. I really need a .012, .013, and .014. I'd considered buying blanks and drilling my own, but where do you get drills that small.

[Anonymous_User]

That one is purdy!



Mine is exactly like that except it isn't all chrome and stuff. I am going to rebuild it - my small nipple welded on is thick wall stuff which doesn't leave enough room inside for a big enough hole. And, yes I have a good BOV. Just that the way I had it mounted was not strong enough.

[Tony Hanna]

...And, yes I have a good BOV...

Speaking of good BOV's, does either this or this look like it would be worth spending money on? I'm in need of a decent BOV, but I'm pretty short on cash.