Gfb stealth fx review

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More actual pictures to come tomorrow: After much trial and error with the FORGE RS BOV, I decided to make a switch back to stock. However, it my stock valve having issues with my tune and holding 26psi.

I decided that I need to go to the market and find a suitable for the EVO X. My search started with looking at the WORK EVO X BOV, which was like the stock one except with upgraded internals and spring. After contacting WORKS, tell said that maybe a good choice would be the GFB: After some research and searching I decided to make the switch. My other choice was the Synapse BOV. I have to say having it on for a week now that I am very impressed with the BOV from GFB.

The quality of the workmanship and CNC work is top notch. It was well packaged and the instructions were clear and to the point. So far I have tried most of the modes, which include full recirculation, full VTA, and the many settings of recirc and vent to atmosphere. Sounds great and works well, no ill effects for gas mileage, I will check the wideband after I install it this weekend.

It holds the piston closed a bit longer when in vacuum and highway cruising however it does produce a tad bit of piston flutter. I will try uping to three full turns and see how the car responds. So far there is no CEL for any reason, no p that I used to get with the FORGE RS.

After speaking with Brett GFB. I have some tuning tips for anyone looking for a GFB BOV or has one already. Check if GFB BOV has a leak Quote:. I can say this with such certainty because of the following. The valve you have will remain closed as long as the pressure at the top is equal to or no more than about 6psi less than the boost pressure in the intercooler pipes — this means the leak would need to be large enough to cause the pressure in the top of the valve to drop more than 6psi below the intercooler pressure in order for the valve to open under boost.

Unless this happens, the valve simply will not open. A leak large enough to cause a 6psi pressure loss in the top of the valve would also render the valve inoperable — i. In fact it takes less of a leak to prevent the valve from venting when you lift the throttle than it does to allow if to lift under boost, so therefore if the valve blows off normally when you lift the throttle, it can be said with confidence that it is not opening under boost.

Now, the leak itself — does this affect boost pressure? If the valve vents normally as per the above, no. A leak that causes a loss of boost pressure, or that can even be measured as a percentage of the air that the engine consumes needs to be pretty big, like something about the size of an 8mm hole or so. As a comparison, a boost control solenoid or bleed valve typically leaks about 10 times more than the amount of air that leaks down past the piston on the BOV.

Of course, without being able to see the valve I cannot say for sure if the amount of air you have leaking out is within what I would say is a normal range, but I can say for sure that the above argument about its operation is still valid — i.

In a nutshell, to confirm the BOVs operation you can do the following: To further confirm, you can measure the boost pressure at the manifold, and then measure it in the BOV vacuum hose. If there is a difference of less than 6psi, it can be safely assumed the valve is not opening under boost. I hope this information helps, but of course as I have made a few assumptions along the way please feel free to comment if they are incorrect.

If the leak is exceedingly large but the valve still operates normally, it is possible some damage has occurred to the piston that can be easily fixed. A very non-scientific method to use to determine if the leak is within a normal range is to suck on the vacuum nipple. If you can pull a vacuum and hold it for a few seconds, then it will undoubtedly fall within the normal range.

If you cannot hold a vacuum at all i.

ANY ONE HEAR OF THIS ADJUSTABLE NOISE BOV/ STEALTH FX/ GFB??? - belucydyret.web.fc2.com

Let me know how you go with the tests, or if you have any further information about relevant symptoms please let me know. Best regards, Brett Turner B. Mech Design Engineer Go Fast Bits. Last edited by Clipse3GT; at Clipse3GT View Public Profile Send a private message to Clipse3GT Find More Posts by Clipse3GT.

MOD please move to the appropriate forum. Hit this one by mistake. I also have this BOV and it works perfectly so far. Mine would flutter alot at that point Have you tried all the way -? How is it for you? Just curious cause that's how mine has the least fluttering. Also would keeping it all the way - have any bad effects, especially when running higher boost?

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What makes the GFB Stealth FX and Deceptor Pro blow-off valves different to other blow-off valves on the market?

Originally Posted by -Evolved Boost-. I didn't feel comfortable having the fluttering as I hear that is air pressing back in and is not good.

That's why I have mine - , but I don't want it to not stay closed Does your BOV have alot if tension when turning the different parts of it? When I had one in my IX it felt less but with this one that I bought used it feels like alot tension when trying to twist it.

I have one of these too - great bov Been running mine for 9mth now. Find More Posts by jamesf.

GFB - WRX Stealth FX Blow Off Valve - Blow Off Valves - Forced Induction - belucydyret.web.fc2.com - Car Parts | Performance Parts | Accessories & More!

Just don't know what yet Originally Posted by joeyhauser. Quote message in reply? In order to be able to post messages on the EvoXForums. Please enter your desired user name, your email address and other required details in the form below. Posting Quick Reply - Please Wait.

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IF THE TOPIC IS COMMON WITH OTHER LANCERS, PLEASE POST IT IN: Page 1 of 2. REVIEW More actual pictures to come tomorrow: Check if GFB BOV has a leak Quote: Originally Posted by Brett GFB he good thing about the EVO X is that it runs a hot wire type MAF sensor which is less sensitive to BOVs than the Karman Vortex type found on the earlier EVOs, so you have more flexibility on the BOV settings. Send a private message to Clipse3GT.

Find More Posts by Clipse3GT. Remove Advertisements Sponsored Links. Evo X Forums Advertisement. Send a private message to -Evolved Boost-.

Find More Posts by -Evolved Boost-. Originally Posted by -Evolved Boost- Nice review. Originally Posted by -Evolved Boost- I didn't feel comfortable having the fluttering as I hear that is air pressing back in and is not good. Send a private message to jamesf. Somewhere over seas Posts: Send a private message to joey. Find More Posts by joey. Originally Posted by joeyhauser any clips of this?

Just curious to the sound of it. Options Quote message in reply? Password Please enter a password for your user account. Note that passwords are case-sensitive. While balancing on a piece of wood, two inches by four inches known as a 2x4, john and his friend sally both spotted a dalmatian inside a truck with sirens, headed to put out a fire. State what the 2x4 is made of. Please choose one AAA AARP Allstate Amica Farmers Geico Liberty Mutual Nationwide Progressive State Farm USAA Not listed Uninsured Not Saying.

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Blow Off Valve on SST.