I just bought a Forge 007 and I read some posts where people are talking about reversing the DV. Does that mean switch thoes two bigger hoses??? What does that actually mean???
Reversed DV???
jkuskows
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Re: Reversed DV??? (jkuskows)
Yep.
| Quote, originally posted by jkuskows » |
| Does that mean switch thoes two bigger hoses??? |
Yep.
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Re: Reversed DV??? (jkuskows)
yea people that run reverse just put the DV in opposite the stock position... this is possible because the forge has a metal piston and spring instead of the rubber... what this will do is give it a different sound... a much louder squeak instead of the quieter wooosh.
yea people that run reverse just put the DV in opposite the stock position... this is possible because the forge has a metal piston and spring instead of the rubber... what this will do is give it a different sound... a much louder squeak instead of the quieter wooosh.
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Re: Reversed DV??? (ReVo20th)
i gained top end from it believe it or not
i gained top end from it believe it or not
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Re: Reversed DV??? (maze88)
the downside is it makes your car sound like a gerbil getting kicked in the nuts! how to do it? ok, go outside, pop your hood, locate diverter valve, note how diverter valve is positioned and reposition it opposite of how it is.
![Image]()
| Quote, originally posted by maze88 » |
Any down side to this?? Also any pics of how to do this???
|
the downside is it makes your car sound like a gerbil getting kicked in the nuts! how to do it? ok, go outside, pop your hood, locate diverter valve, note how diverter valve is positioned and reposition it opposite of how it is.
Re: Reversed DV??? (maze88)
The "cool" sound produced by reversing the DV is the sound of compressor surge. This happens when the pressurized air bounces off the closed throttle plate and travels back to the turbo. This wave of air collides with the still-rotating turbo and stops it. The DV normally vents this air back into the inlet of the turbo to keep it spinning and reduce lag for the next time you open the throttle. When the DV is installed backwards it does not allow all the pressurized air to escape.
Compressor surge is hard on the turbo bearings. It will not make your turbo fail next week, but it will shorten the life to some degree. I would not do it to my car.
| Quote, originally posted by maze88 » |
| Any down side to this?? Also any pics of how to do this???
|
The "cool" sound produced by reversing the DV is the sound of compressor surge. This happens when the pressurized air bounces off the closed throttle plate and travels back to the turbo. This wave of air collides with the still-rotating turbo and stops it. The DV normally vents this air back into the inlet of the turbo to keep it spinning and reduce lag for the next time you open the throttle. When the DV is installed backwards it does not allow all the pressurized air to escape.
Compressor surge is hard on the turbo bearings. It will not make your turbo fail next week, but it will shorten the life to some degree. I would not do it to my car.
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Re: Reversed DV??? (Ken Hill)
Then why would Forge talk about installing it this way ????????
| Quote, originally posted by Ken Hill » |
The "cool" sound produced by reversing the DV is the sound of compressor surge. This happens when the pressurized air bounces off the closed throttle plate and travels back to the turbo. This wave of air collides with the still-rotating turbo and stops it. The DV normally vents this air back into the inlet of the turbo to keep it spinning and reduce lag for the next time you open the throttle. When the DV is installed backwards it does not allow all the pressurized air to escape. Compressor surge is hard on the turbo bearings. It will not make your turbo fail next week, but it will shorten the life to some degree. I would not do it to my car. |
Then why would Forge talk about installing it this way ????????
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Re: Reversed DV??? (Dub20thae#1763)
Because they SELL car parts. they do not make money if your existing parts work perfectly for long periods of time.
Mostly, though, they give the customer what they (think they) want.
So, hey, you want hamster-bawl between every shift, run it backwards. You want good performance and long life, run it like the friggin engineers designed it to be run.
![Image]()
| Quote, originally posted by Dub20thae#1763 » |
Then why would Forge talk about installing it this way ???????? |
Because they SELL car parts. they do not make money if your existing parts work perfectly for long periods of time.
Mostly, though, they give the customer what they (think they) want.
So, hey, you want hamster-bawl between every shift, run it backwards. You want good performance and long life, run it like the friggin engineers designed it to be run.
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Re: Reversed DV??? (CortezTheKiller)
said it best right there all these companies say whatever you wanna hear .some guy probably called after he installed incorrectly,called forge and was like my car makes this loud blow off noise i think its in wrong and bingo a new reason 4 people to buy their crap .it sounds like monkeys in the amazon... http://****************.com/smile/emthdown.gif
| Quote, originally posted by CortezTheKiller » |
Because they SELL car parts. they do not make money if your existing parts work perfectly for long periods of time. Mostly, though, they give the customer what they (think they) want. So, hey, you want hamster-bawl between every shift, run it backwards. You want good performance and long life, run it like the friggin engineers designed it to be run.
|
said it best right there all these companies say whatever you wanna hear .some guy probably called after he installed incorrectly,called forge and was like my car makes this loud blow off noise i think its in wrong and bingo a new reason 4 people to buy their crap .it sounds like monkeys in the amazon... http://****************.com/smile/emthdown.gif
Re: Reversed DV??? (FLATBLACKMK2)
I have a Forge DV-R and I put it in oriented the same way the stock Bosch one was installed. It works great for me. Also, there was once a thread posted somewhere on the Tex that I read about this topic. In it a company tested four maybe five different diverter valves. If I remember correctly, they tested the Forge one installed both ways and it still gave off the same results. You may still be able to find this thread with the search feature. I hope this helps.
I have a Forge DV-R and I put it in oriented the same way the stock Bosch one was installed. It works great for me. Also, there was once a thread posted somewhere on the Tex that I read about this topic. In it a company tested four maybe five different diverter valves. If I remember correctly, they tested the Forge one installed both ways and it still gave off the same results. You may still be able to find this thread with the search feature. I hope this helps.
Re: Reversed DV??? (kaizen)
Try this out guys
This may give you info about your DV
http://dv.mistertam.com/
http://****************.com/smile/emthup.gif
![Image]()
Try this out guys
This may give you info about your DV
http://dv.mistertam.com/
http://****************.com/smile/emthup.gif
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830 Posts
Re: Reversed DV??? (jrmmd)
look guys, piston style DV's can be ran in reverse mode or normal mode just fine but diaphram DV's cannot, they can only be installed in normal route, now if you install a diaphram DV reversed it will cause compression surging, which is bad but u CAN run the piston style reversed with no downfalll
look guys, piston style DV's can be ran in reverse mode or normal mode just fine but diaphram DV's cannot, they can only be installed in normal route, now if you install a diaphram DV reversed it will cause compression surging, which is bad but u CAN run the piston style reversed with no downfalll
Re: Reversed DV??? (1dvsgti)
Hey ken-hill who told you what compessor surge is . It is actually a flutering sound not the the squeak. If you have ever heard the HKS BOV it gives you that anoying eeeeeeeeeeeekkk sound. This is becasue the diaphrame is being pushed by the air not pulled (HKS bov type) thats why when you reverse the DV it gives you the same sound
Hey ken-hill who told you what compessor surge is . It is actually a flutering sound not the the squeak. If you have ever heard the HKS BOV it gives you that anoying eeeeeeeeeeeekkk sound. This is becasue the diaphrame is being pushed by the air not pulled (HKS bov type) thats why when you reverse the DV it gives you the same sound
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