GoFastBits BOV Kits - 5 options explained - Sound Clip - KHARTUNERZ

[NICK_KHAR]

If you dont know about GoFastBits they are one of the premiere companies in regards to boost related products from blow off valves to boost controllers
They offer some of the best products in that category
Well we had met up with GFB at SEMA and spoke to them about the new products they will be releasing for the Stinger


Well the time has come and they are finally ready to release their Blow off Valves
Now here comes the confusing part
They have a total of 5 different options for the stinger
So I will outline the major differences between each kit
I will go in order of price from lowest price to most expensive


Kit 1 - (2 Mach2 Recirc valves )
This kit is designed as an OEM Replacement
No more sound over stock
Direct recirc back into intake just as the OEM Valves would
Kia Stinger GFB TMS Mach2 Recirc Blow Off Valve BOV


Kit 2 - (2 TMS Hybrid valves)
These are dual port blow off valves
They can be adjusted for 3 settings
Full Recirc, Full Atmosphere, and 50/50 split recirc/atmos
Adjustment requires disassembling the blow off valve
Kia Stinger GFB Hybrid Blow Off Valve BOV


Kit 3 - (1 "Respons BOV & 1 Mach2 Recirc")
The Respons blow off valve, unlike the hybrid is not limited to 3 setting
The Respons can be adjust as much to atmosphere or as much to recirc as you wish. So you can fully adjust the sound to youre liking
The Respons can also be fitted with GFB signature trumpets to dramatically change the sound
Adjustments for sound are done with dial versus disassembling the valve
Kia Stinger GFB Respons Blow Off Valve BOV


Kit 4 - 2 ("Respons Valves")
Same as the KIT3 but dual Respons valves versus 1 Respons 1 TMS Recirc
Adjustments for sound are done with dial versus disassembling the valve
Kia Stinger GFB Response Bolt On Blow Off Valve BOV


Kit 5 - ("1 Deceptor Valve & 1 Mach2 Recirc")
The Deceptor valve has the same adjustabily as the Respons but instead of having to get out of your car and adjust the dial on the bov, the Deceptor is adjusted with module that can be placed within the car, allowing you to adjust the noise at the press of a button
Kia Stinger GFB Deceptor Pro Blow Off Valve BOV

Any questions please feel free

 

[DaJackson]

Other than noise, what’s the gain here?

 

[NICK_KHAR]

Other than noise, what’s the gain here?

We havent particurlay tested the stock valves capability yet
BUT
all the other kias and hyundais weve dealt with
They tend to leak boost under higher than stock pressure &
aftermarket valves tend to actuate faster as well

So its a mix of sound and performance

 

[DaBears4Lyfe]

better throttle response
Faster boost recovery on gearshift

 

[NICK_KHAR]

The recirc and hybrid setups are on sale for a limited time!

 

[DaJackson]

better throttle response
Faster boost recovery on gearshift

Has this been documented or just “when I put a BOV on my last car it did...”?

 

[DaBears4Lyfe]

Has this been documented or just “when I put a BOV on my last car it did...”?

For our platform, these are new to market. For others I believe GFB has some information.

This was one of the articles they did on the Respons set up (the one IMO is the best)

RESPONS TMS : SMARTER THAN A DUAL PORT BOV!
Atmosphere venting BOV won’t work on your car? Try a GFB Respons – you’ll be surprised!
Just another dual-port BOV?
On the surface it may look like just another dual-port blow-off valve,but the Respons is actually much more than that. Featuring GFB’s patented venting bias adjustment system, the Respons allows you to precisely control how much air vents from each of the two outlets.

Why is this so important? Two key reasons:

1. Adjust how loud the blow-off sound is. Recirculate all of the air for silent factory operation, vent it all to atmosphere for maximum noise, or set it ANYWHERE in between to suit your preference.
2. Get a blow-off sound WITHOUT causing stalling, backfiring, or any other BOV-related issues, even on a car with a sensitive airflow meter (MAF).

Hold on, it gets better. The Respons isn’t just a noise-maker. It also;

• Offers better throttle response
• Faster boost recovery on gearshift
• Unlimited boost-holding!

For example, using GFB’s TMS (Turbo Management System) principle, tests show that the Respons can return the engine to peak boost up to 30% faster than a factory diverter valve when shifting gears (more information below)

(*Chart shows comparative manifold boost pressure rise during 1st to 2nd gear shift as tested on a CA18DET with a T28 turbo. GFB TMS improvement is seen as a 30% faster return to peak boost, during which time up to40% more boost is available)

How GFB’s patented venting bias adjustment works

Twisting the adjusting ring opens up the atmo port, whilst the recirc port is simultaneously closed.This results in possible venting ratios ranging from 100% recirc, right through to 100% atmosphere and anywhere in between.



Available in a huge range of universal and direct bolt-on kits
When we say “bolt-on”, that’s EXACTLY what we mean. Everything you need is included, it fits directly in the factory location (not on a separate adaptor), and no modifications to the car are required.

Performance AND sound without compromise!

• Adjust the volume of your blow-off sound
• Up to 30% faster boost recovery on gearshift
• Get the blow off sound without the hassles - even on sensitive MAF-based systems
• Hold unlimited boost pressure
• Direct bolt-on kits available

Get the inside information...
GFB is no stranger to dual port BOVs. In fact, GFB pioneered the design in 1999, following up with the patented venting bias adjustment system in 2001.

This technology is not just a gimmick – it’s the key to getting a blow-off sound without the issues (unlike other valves), and is exclusive to GFB.

“I thought venting to atmosphere couldn’t be done on a car with an airflow meter, so how does the Respons do it?”
We’ve all heard the stories and seen people get shot down on forums when they ask about BOVs. Common responses are “your car will stall,backfire, run rich, go slower, or rip a hole in the space-time continuum that will bring about the end of the universe”. Certainly, if the BOV is not designed or adjusted correctly, at least some of these may be true.


When you vent a BOV to atmosphere, you’re letting air out of the system that has been measured by the airflow meter, so the ECU will continue to inject fuel for that missing air, hence the issues with over-fuelling that can occur.

However, by controlling HOW MUCH the valve vents, WHEN it vents, and for HOW LONG, the Respons can be configured to vent a portion of air to atmosphere at a time and of a volume that least affects the fuelling to the point where there are no negative side-effects.

Since our competitors do not have a means for adjusting the amount of air that is vented to atmosphere, they are unable to achieve the same success that a Respons does on even the most sensitive engines.

If everything you’ve heard tells you a BOV won’t work on your car, try a GFB Respons - you will be surprised!
“How does a GFB Respons improve performance?”
Boost holding
Unlike factory bypass valves, or other brand valves that require different springs for different boost levels, a GFB valve CANNOT be forced open by high boost!

The balanced piston design in a GFB valve uses boost pressure on either side to cancel out the forces. Therefore it doesn’t matter how much boost you run, you can be sure a Respons valve will deliver all of it to the engine.

Throttle response and boost recovery
GFB’s TMS (Turbo Management System) principle is based on an operating method that is different to all factory bypass valves, which can be summarised as:

A factory bypass valve is open until required to shut.

A GFB TMS valve is shut until required to open.

This difference in operating methods means that the GFB valve only vents when required, and only enough air to prevent compressor surge.

For example, during a gearshift it is possible to preserve a small amount of boost pressure for a short duration. Then, when the throttle is then re-opened, peak boost is reached faster than if all pressure is lost (as is the case with the factory valve that remains fully open too long).

 

[Angel]

For our platform, these are new to market. For others I believe GFB has some information.

This was one of the articles they did on the Respons set up (the one IMO is the best)

RESPONS TMS : SMARTER THAN A DUAL PORT BOV!
Atmosphere venting BOV won’t work on your car? Try a GFB Respons – you’ll be surprised!
Just another dual-port BOV?
On the surface it may look like just another dual-port blow-off valve,but the Respons is actually much more than that. Featuring GFB’s patented venting bias adjustment system, the Respons allows you to precisely control how much air vents from each of the two outlets.

Why is this so important? Two key reasons:

1. Adjust how loud the blow-off sound is. Recirculate all of the air for silent factory operation, vent it all to atmosphere for maximum noise, or set it ANYWHERE in between to suit your preference.
2. Get a blow-off sound WITHOUT causing stalling, backfiring, or any other BOV-related issues, even on a car with a sensitive airflow meter (MAF).

Hold on, it gets better. The Respons isn’t just a noise-maker. It also;

• Offers better throttle response
• Faster boost recovery on gearshift
• Unlimited boost-holding!

For example, using GFB’s TMS (Turbo Management System) principle, tests show that the Respons can return the engine to peak boost up to 30% faster than a factory diverter valve when shifting gears (more information below)

(*Chart shows comparative manifold boost pressure rise during 1st to 2nd gear shift as tested on a CA18DET with a T28 turbo. GFB TMS improvement is seen as a 30% faster return to peak boost, during which time up to40% more boost is available)

How GFB’s patented venting bias adjustment works

Twisting the adjusting ring opens up the atmo port, whilst the recirc port is simultaneously closed.This results in possible venting ratios ranging from 100% recirc, right through to 100% atmosphere and anywhere in between.



Available in a huge range of universal and direct bolt-on kits
When we say “bolt-on”, that’s EXACTLY what we mean. Everything you need is included, it fits directly in the factory location (not on a separate adaptor), and no modifications to the car are required.

Performance AND sound without compromise!

• Adjust the volume of your blow-off sound
• Up to 30% faster boost recovery on gearshift
• Get the blow off sound without the hassles - even on sensitive MAF-based systems
• Hold unlimited boost pressure
• Direct bolt-on kits available

Get the inside information...
GFB is no stranger to dual port BOVs. In fact, GFB pioneered the design in 1999, following up with the patented venting bias adjustment system in 2001.

This technology is not just a gimmick – it’s the key to getting a blow-off sound without the issues (unlike other valves), and is exclusive to GFB.

“I thought venting to atmosphere couldn’t be done on a car with an airflow meter, so how does the Respons do it?”
We’ve all heard the stories and seen people get shot down on forums when they ask about BOVs. Common responses are “your car will stall,backfire, run rich, go slower, or rip a hole in the space-time continuum that will bring about the end of the universe”. Certainly, if the BOV is not designed or adjusted correctly, at least some of these may be true.


When you vent a BOV to atmosphere, you’re letting air out of the system that has been measured by the airflow meter, so the ECU will continue to inject fuel for that missing air, hence the issues with over-fuelling that can occur.

However, by controlling HOW MUCH the valve vents, WHEN it vents, and for HOW LONG, the Respons can be configured to vent a portion of air to atmosphere at a time and of a volume that least affects the fuelling to the point where there are no negative side-effects.

Since our competitors do not have a means for adjusting the amount of air that is vented to atmosphere, they are unable to achieve the same success that a Respons does on even the most sensitive engines.

If everything you’ve heard tells you a BOV won’t work on your car, try a GFB Respons - you will be surprised!
“How does a GFB Respons improve performance?”
Boost holding
Unlike factory bypass valves, or other brand valves that require different springs for different boost levels, a GFB valve CANNOT be forced open by high boost!

The balanced piston design in a GFB valve uses boost pressure on either side to cancel out the forces. Therefore it doesn’t matter how much boost you run, you can be sure a Respons valve will deliver all of it to the engine.

Throttle response and boost recovery
GFB’s TMS (Turbo Management System) principle is based on an operating method that is different to all factory bypass valves, which can be summarised as:

A factory bypass valve is open until required to shut.

A GFB TMS valve is shut until required to open.

This difference in operating methods means that the GFB valve only vents when required, and only enough air to prevent compressor surge.

For example, during a gearshift it is possible to preserve a small amount of boost pressure for a short duration. Then, when the throttle is then re-opened, peak boost is reached faster than if all pressure is lost (as is the case with the factory valve that remains fully open too long).

Lol hahahah great info man ... please tell me you didn’t write all that ?? Point proven Sir ...

 

[Angel]

Has this been documented or just “when I put a BOV on my last car it did...”?

Have you read about GFB ? There arguably the best or one of the best manufacturing companies that make BOV ... they are known around the world for there top notch quality and performance ....I am sure you know what BOV does it’s not just sound , maybe an eBay BOV is just sound , but any quality BOV it’s going to help hold boost better especially when running higher boost levels ... as well as less probability to fail Under higher usage ... all it is a reliability upgrade to protect the turbos and engine ... you don’t get any hp gains per say but you do get other benefits other than the sound ...

 

[Never thought]

@NICK_KHAR would any of these provide any performance benefit if I was to run a max 18 PSI tune?

 

[Angel]

@NICK_KHAR would any of these provide any performance benefit if I was to run a max 18 PSI tune?

Define performance ?? Have you read the post by bears for life ?? All the information is here ... Read the post above you lol not trying to be rude

 

[DaJackson]

Have you read about GFB ? There arguably the best or one of the best manufacturing companies that make BOV ... they are known around the world for there top notch quality and performance ....I am sure you know what BOV does it’s not just sound , maybe an eBay BOV is just sound , but any quality BOV it’s going to help hold boost better especially when running higher boost levels ... as well as less probability to fail Under higher usage ... all it is a reliability upgrade to protect the turbos and engine ... you don’t get any hp gains per say but you do get other benefits other than the sound ...

Is there any testing that’s shown our stock BOVs are not holding boost?

An upgraded fuel pump will push more fuel to the injectors but if we haven’t hit the limit of the stock one there is no point in replacing it.

 

[Angel]

Is there any testing that’s shown our stock BOVs are not holding boost?

An upgraded fuel pump will push more fuel to the injectors but if we haven’t hit the limit of the stock one there is no point in replacing it.

I am not sure if there is testing on the oem bov past normal boost level since it’s such a new plataform ... but generally oem BOV especially the cheap plastic ones like the ones we have in our stinger , after abuse on higher boost level than intended by oem they tend to leak after a while....now if your car is stock then no worries, that what they were designed for those boost levels ... once you mod/ aka turn up the boost there is a probablity they will leak sooner , rather than later ... this might take a year , two maybe 3 who knows ... I look at quality aftermarket BOV as a safety insurance on your turbo and engine ... it’s has the side benefits that you know they will hold boost more efficiently and are adjustable to your set up once you mod your car ....this not just not just the stinger plataform this is a general rule of thumb for all boosted cars ... you see a lot in Subaru’s , eco, etc most people that turn up the boost they generally get aftermarket BOV...

 

[Never thought]

Define performance ?? Have you read the post by bears for life ?? All the information is here ... Read the post above you lol not trying to be rude

You don’t know what performance means? I read it, but it’s generic and not specific to the Stinger. Hence my question.

 

[Angel]

You don’t know what performance means? I read it, but it’s generic and not specific to the Stinger. Hence my question.

Since when is a BOV specific to a car ?? It’s used in all turbo set ups .....it serves the same purpose on any turbocharged vehicle ....

 

[Kamauxx]

Is there any testing that’s shown our stock BOVs are not holding boost?

No, because the people manufacturing the BOVs don't have any incentive to prove/disprove their part is just a noise trinket.

 

[NICK_KHAR]

Is there any testing that’s shown our stock BOVs are not holding boost?

An upgraded fuel pump will push more fuel to the injectors but if we haven’t hit the limit of the stock one there is no point in replacing it.

No there hasnt been any tests showing they are leaking

 

[Never thought]

Since when is a BOV specific to a car ?? It’s used in all turbo set ups .....it serves the same purpose on any turbocharged vehicle ....

The posting that I referenced about OE BOVs are generic and not specifically talking about the OE BOV on the Stinger...

 

[Angel]

The posting that I referenced about OE BOVs are generic and not specifically talking about the OE BOV on the Stinger...

Ok my apologies sorry I was not able to help .... hope Nick or someone else can give you the information you are looking for ...

 

[diamonddan]

I purchased kit V from Khartunerz and my car has been stuck at the dealer getting installed. They can't get the valves to open up under any setting regardless of where the manual adjustment screws are or the electronic one inside the car. Can't get anyone from GFB to answer an email to help troubleshoot but this is the weekend after all. Can someone with experience with these please help give recommendations I can pass to the dealer tech? Appreciate it!