Which Blowoff/Bypass Valve do you use? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

qtwre · 02-02-2014, 05:16 PM

I haven't seen a discussion anywhere about which BOVs people are using. I'd be interested to hear what the favourite options are and maybe some constructive discussion as to why one is prefered over another.

I'm thinking of the AVO kit and for now I think I may just go with a plastic Bosch.

DAMotorsports · 02-02-2014, 05:39 PM

Well there are a lot of choose you can use. we use the Turbosmart Universal dual port BOV its pricy but we get 4 choose on how to set it you. also the GFB works great with the AVO kits. feel free to PM me if you have more questions.

mrk1 · 02-02-2014, 06:01 PM

I ran a Tial Q on my last STI and could never get it to perform consistently. On this BRZ build I have now switched to a TurboSmart VeePort Pro, haven't yet to run it but very impressed with it so far.

Hawaiian · 02-02-2014, 06:41 PM

Quote:

Originally Posted by mrk1

I ran a Tial Q on my last STI and could never get it to perform consistently. On this BRZ build I have now switched to a TurboSmart VeePort Pro, haven't yet to run it but very impressed with it so far.

Short of how it looks, if you haven't run it, how can you be impressed?

protpibe · 02-02-2014, 06:44 PM

Quote:

Originally Posted by qtwre

I haven't seen a discussion anywhere about which BOVs people are using. I'd be interested to hear what the favourite options are and maybe some constructive discussion as to why one is prefered over another.

I'm thinking of the AVO kit and for now I think I may just go with a plastic Bosch.

If you're going to run the AVO kit, I would suggest just getting the AVO BOV. You can get an OEM style 100% recirc or an adjustable one that will allow you to go 50/50 recirc.

protpibe · 02-02-2014, 06:49 PM

I should also mention that going with the AVO setup on an AVO Turbo kit will mean you don't have to get any custom flanges welded on to the charge pipe.

mrk1 · 02-02-2014, 07:11 PM

Quote:

Originally Posted by Hawaiian

Short of how it looks, if you haven't run it, how can you be impressed?

Physical build quality and construction. Good instructions, things like that. I also had a hard time mounting the Tial because it was so large, the Vee Port is much smaller so thats much more freedom in terms of where to mount it.

qtwre · 02-03-2014, 01:00 AM

Quote:

Originally Posted by protpibe

If you're going to run the AVO kit, I would suggest just getting the AVO BOV. You can get an OEM style 100% recirc or an adjustable one that will allow you to go 50/50 recirc.

That for sure is the most fool-proof route but I'm not entirely sure what makes it worth the cost as compared to a less expensive alternative.

It would be great if everyone could state what they have and why they chose it for future searchers. There are a lot of turbos on the forum.

jamesm · 02-03-2014, 10:20 AM

Turbosmart is where it's at. I've owned many a BOV and it's by far the best I've owned. Sounds awesome, it's nice and small so it'll fit just about anywhere, v-band connections, very high quality machine work and the customer service is insane.

I had an issue where they didn't list a spring stiff enough for the vacuum my engine pulls. I called Turbosmart and they had one overnighted to me for free the next day. I didn't even have to ask. I was calling to see if I could buy one and they were just like "oh no, it's on us, and it'll be there tomorrow morning". Best customer service experience I've had on a car part, ever.

sid3way5 · 02-03-2014, 01:09 PM

Im running the tial q on the fa20club 60trim kit it wouldn't open until I installed a vibrant vacuum line block now it works fine I tried to change springs but they were to soft so the valve would leak

MAPerformance · 02-03-2014, 01:23 PM

We have always had great results with Turbosmart products. We are using either the Veeport or Raceport BOV, and Comp Gate 40 waste gate on our kits. Their quality is top notch for sure.

King Tut · 02-04-2014, 06:14 PM

Quote:

Originally Posted by sid3way5

Im running the tial q on the fa20club 60trim kit it wouldn't open until I installed a vibrant vacuum line block now it works fine I tried to change springs but they were to soft so the valve would leak

I had similar issues. I ended up with an 11 psi spring and a couple aluminum washers to keep it closed at idle. I believe they now make a 12 psi spring for the Q as well.

qtwre · 02-09-2014, 08:45 PM

I think I've settled on this GFB Respons TMS BOV. It has the capability to go from full recirc to full blow off with anything inbetween by adjusting a collar on the body.

I don't know anything about the company but those Australians seem to make good products. Any opinions?

Here's a video about it.
[ame="http://www.youtube.com/watch?v=ECkvx-YWgQI"]GFB Respons Blow-off valve - YouTube[/ame]

jamesm · 02-09-2014, 09:04 PM

The important thing is just that if you have a draw through maf you use a recirc, and if it's blow through use whatever you want. Other than that it's pretty much personal preference. I'll always use turbosmart from now on though.

02-02-2014, 05:16 PM	#1
qtwre Senior Member Join Date: Jun 2012 Drives: White FR-S Location: GTA, Ontario Posts: 190 Thanks: 15 Thanked 35 Times in 30 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	Which Blowoff/Bypass Valve do you use? I haven't seen a discussion anywhere about which BOVs people are using. I'd be interested to hear what the favourite options are and maybe some constructive discussion as to why one is prefered over another. I'm thinking of the AVO kit and for now I think I may just go with a plastic Bosch.

02-02-2014, 06:01 PM	#3
mrk1 Senior Member Join Date: Mar 2013 Drives: Sterling BRZ Ltd Location: New England Posts: 1,702 Thanks: 403 Thanked 1,389 Times in 671 Posts Mentioned: 21 Post(s) Tagged: 2 Thread(s)	I ran a Tial Q on my last STI and could never get it to perform consistently. On this BRZ build I have now switched to a TurboSmart VeePort Pro, haven't yet to run it but very impressed with it so far. __________________ The Build Thread GT28RS - eBoost2 - 3.91 Final Drive - Supra LSD

02-02-2014, 06:49 PM	#6
protpibe Senior Member Join Date: Oct 2013 Drives: 4-Runner Sport - 13' BRZ SportTech Location: Winnipeg Posts: 1,395 Thanks: 253 Thanked 839 Times in 459 Posts Mentioned: 18 Post(s) Tagged: 0 Thread(s)	I should also mention that going with the AVO setup on an AVO Turbo kit will mean you don't have to get any custom flanges welded on to the charge pipe. __________________ Top Tier Imports - Check out my build journal HERE

02-03-2014, 10:20 AM	#9
jamesm Banned Join Date: Mar 2013 Drives: 2013 FR-S Location: Orlando, FL Posts: 2,929 Thanks: 1,166 Thanked 2,293 Times in 1,180 Posts Mentioned: 313 Post(s) Tagged: 4 Thread(s)	Turbosmart is where it's at. I've owned many a BOV and it's by far the best I've owned. Sounds awesome, it's nice and small so it'll fit just about anywhere, v-band connections, very high quality machine work and the customer service is insane. I had an issue where they didn't list a spring stiff enough for the vacuum my engine pulls. I called Turbosmart and they had one overnighted to me for free the next day. I didn't even have to ask. I was calling to see if I could buy one and they were just like "oh no, it's on us, and it'll be there tomorrow morning". Best customer service experience I've had on a car part, ever. Last edited by jamesm; 02-03-2014 at 02:21 PM.

02-03-2014, 01:09 PM	#10
sid3way5 Member Join Date: Apr 2013 Drives: 13 wrb brz greddy evo3 catback..... Location: queens Posts: 66 Thanks: 12 Thanked 4 Times in 3 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Im running the tial q on the fa20club 60trim kit it wouldn't open until I installed a vibrant vacuum line block now it works fine I tried to change springs but they were to soft so the valve would leak __________________ fa20 kit 303/250

02-02-2014, 05:39 PM	#2
DAMotorsports Banned Join Date: Feb 2013 Drives: 2013 Scion FRS "Raven" Location: SoCal Posts: 503 Thanks: 335 Thanked 468 Times in 215 Posts Mentioned: 85 Post(s) Tagged: 0 Thread(s)	Well there are a lot of choose you can use. we use the Turbosmart Universal dual port BOV its pricy but we get 4 choose on how to set it you. also the GFB works great with the AVO kits. feel free to PM me if you have more questions.

02-03-2014, 01:23 PM	#11
MAPerformance Senior Member Join Date: Aug 2012 Drives: Asphalt FRS Location: Cottage Grove, MN Posts: 1,272 Thanks: 669 Thanked 981 Times in 540 Posts Mentioned: 84 Post(s) Tagged: 3 Thread(s)	We have always had great results with Turbosmart products. We are using either the Veeport or Raceport BOV, and Comp Gate 40 waste gate on our kits. Their quality is top notch for sure.

02-09-2014, 08:45 PM	#13
qtwre Senior Member Join Date: Jun 2012 Drives: White FR-S Location: GTA, Ontario Posts: 190 Thanks: 15 Thanked 35 Times in 30 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	I think I've settled on this GFB Respons TMS BOV. It has the capability to go from full recirc to full blow off with anything inbetween by adjusting a collar on the body. I don't know anything about the company but those Australians seem to make good products. Any opinions? Here's a video about it. [ame="http://www.youtube.com/watch?v=ECkvx-YWgQI"]GFB Respons Blow-off valve - YouTube[/ame]

02-09-2014, 09:04 PM	#14
jamesm Banned Join Date: Mar 2013 Drives: 2013 FR-S Location: Orlando, FL Posts: 2,929 Thanks: 1,166 Thanked 2,293 Times in 1,180 Posts Mentioned: 313 Post(s) Tagged: 4 Thread(s)	The important thing is just that if you have a draw through maf you use a recirc, and if it's blow through use whatever you want. Other than that it's pretty much personal preference. I'll always use turbosmart from now on though.

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