VTA Mod (Video)
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9 ECHO 1
Joined: Aug 2009
Posts: 12,467
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From: Missouri
VTA Mod (Video)
I did the VTA mod, and as per my usual, did a video on it. This one couldn't be simpler. To be honest, I only did this mod because I had a small credit left with Stage 3 Motorsports from a return and I thought "well, I'm not going to find anything else on their site for $20..." I figured for the price of free I would at least try it, if for no other reason than I like to tinker.
For the un-initiated, the VTA (Vent to Air) mod allows the blow off valve to vent the release of pressurized air to the atmosphere, instead of it being recycled into the intake. This produced more prominent turbo noise, which some people like. (I am undecided. In my younger 7.3L diesel days I liked it.) To accomplish this, you simply unplug the tube between the blow off valve and then intake, cap the "upstream" end, and leave the BOV open.
Some have suggested putting a filter over the BOV. Any good way of doing this? Since the valve is closed and air is literally blowing through it regularly, I cant imagine anything would make its way in there.
Anyway, if you want to see it, and hear the PSSHHHH, heres the video:
For the un-initiated, the VTA (Vent to Air) mod allows the blow off valve to vent the release of pressurized air to the atmosphere, instead of it being recycled into the intake. This produced more prominent turbo noise, which some people like. (I am undecided. In my younger 7.3L diesel days I liked it.) To accomplish this, you simply unplug the tube between the blow off valve and then intake, cap the "upstream" end, and leave the BOV open.
Some have suggested putting a filter over the BOV. Any good way of doing this? Since the valve is closed and air is literally blowing through it regularly, I cant imagine anything would make its way in there.
Anyway, if you want to see it, and hear the PSSHHHH, heres the video:
Logistics Pro
Joined: Oct 2004
Posts: 4,738
Likes: 103
From: FL
Guess we can say the same about CAIs and cat-back exhaust systems that don't add any power or efficiency just sound.
Fleet Mechanic
Joined: Dec 2008
Posts: 1,909
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From: Burleson, Tx
If you decide you'd like to sell the hose between the BOV and return let me know. Mine is venting after installing the Full Race intercooler and I'd like to stop the sound.
One thing the VTA does is it gives a way for the oil/slush that cam accumulate in your intercooler a way out.
One thing the VTA does is it gives a way for the oil/slush that cam accumulate in your intercooler a way out.
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9 ECHO 1
Joined: Aug 2009
Posts: 12,467
Likes: 58
From: Missouri
If you decide you'd like to sell the hose between the BOV and return let me know. Mine is venting after installing the Full Race intercooler and I'd like to stop the sound.
One thing the VTA does is it gives a way for the oil/slush that cam accumulate in your intercooler a way out.
One thing the VTA does is it gives a way for the oil/slush that cam accumulate in your intercooler a way out.
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Dirtboy953b
Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
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Apr 5, 2009 09:08 PM
