Nissan Fairlady z32 300zx Twin Turbo Manual - Fitting GFB Mach 2 Recirc Divertor Valves
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- čas přidán 7. 09. 2024
- The car has not seen the road for 17+ years and needs some TLC, i want to get it though MOT so that I know how much its really going to cost me, and it it even runs for a decent distance.
I really didn't like the dump valve blow off valve set up. Bailey vent to atmosphere is really no good for these cars. I wanted to get it running 100% eliminating any boost/vac leaks. GFB Mach 2 Divertor valves are a great product. Just the job.
![Is it safe to vent your Blow Off Valve to atmosphere? [GO FAST BRETT]](http://i.ytimg.com/vi/bsy9hJic7cQ/mqdefault.jpg)
Great video glad you posted this mine will be here next week and will be following you're guide to install mine 👍
That was the reason I posted it sooner. As I know there are at least two people wanting to fit them :)
Hello mate, thanks for posting this video.
I've recently purchased a 300ZX Twin Turbo and really want some BOV's.
The usual "forums" strongly advise against it due to the MAF, then I found GFB's website and went down a slight rabbit hole.
Assuming you still have them, have you had any issues since the video? And do you know the difference between MACH 2's and their normal "universal" range?
The reason people advise against BOV's is because they usually vent to the atmosphere, creating that whoosh sound everyone knows and loves. However, that lovely air that is expelled causes a mis-match in the ecu as to what the MAF registered coming in, and what is actually in the system, this causes over fuelling. With a standard MAF in place, best to get this style of BOV which re-circulates the air. That's why I went for the GFB. The stock ones recirculate, however they get weak over time and can leak too.
To answer the second part of your question, I am not sure what you mean by "normal" range. However, the main thing I can think of is that the Mach 2 has adjustment on the tension of the spring. This allows the BOV to not open early and hence hold the boost for longer until it really needs to dump
I'm very grateful for your responses!
What I meant by "normal" - on the GFB website, they have a "universal" BOV listed for the 300, as well as the MACH 2. So wasn't sure if you knew what the difference was as visually, the look the exact same.
@wishybishy if you filter on 300zx it only shows the mach 2 and the deceptor. To answer your other question, it's a great bov. I have one on the 200sx too. No issues
Just coming back to this, as my 300 is now at a garage being worked on, have you got any videos of how they sound?
Any input on how to adjust the spring pressure? I.E. how to know when it should have more or less pressure?
If it isn't giving a hard whoosh then you need to tighten it. If it starts chu chu ing then you need to loosen it lol!
@@ModorFix thanks for the quick reply, appreciate it!
Does it make the bov sound or the recircs are quiet?
Not as strong as a BOV sound. But if you have an induction kit you will here it. You can also set it so you get a bit of flutter if you wanted.
@@ModorFix ooo would love to get the flutter sound.