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Pierburg BPV Solenoid

559 Views 7 Replies 4 Participants Last post by  waveslikeweapons
I've been doing a lot of research lately on Pierburg valves and wanted to share my results. SXTH sells a unit that was original equipment on Volvo (# 7.28197.16.0) and N75 sells one that was originally from VW/Audi (# 7.00470.06). While the one from SXTH is a direct replacement for stock (with a slight modification to the stock bracket), N75's requires a wiring harness adapter and some creative mounting since the bracket is totally different. All of the solenoids I pulled from the shelf are essentially the same as far as the actual solenoid goes. The difference in them is the size of the hoses and/or mounting and plug configuration. What I found is that the turbo boost solenoid from the Ford 3.5 Ecoboost trucks is a truly plug and play option for our cars. The Pierburg number for those is 7.02087.05.0 and since it is a factory part used on millions of vehicles on the road it is substantially cheaper than the other two options listed above. I installed this unit along with a GFB Mach 2 and a SXTH hot pipe the other day and the difference is mind blowing! The boost comes in sooner and the boost curve is much more linear than the choppiness you get from the factory setup. In the end, I would highly recommend anyone to install at least the solenoid if they do nothing else.
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So does the one you installed use the factory bracket?
Thanks for looking into this more. $32 works for me. Did the Ford part need a mount bracket adjustment? Keep us all updated even if you encounter an issue.

What did you end up doing with the spring preload on the GFB Mach 2?
So does the one you installed use the factory bracket?
Yes.

Thanks for looking into this more. $32 works for me. Did the Ford part need a mount bracket adjustment? Keep us all updated even if you encounter an issue.

What did you end up doing with the spring preload on the GFB Mach 2?
The bracket does need to be spread out a little just like the SXTH unit but it is not at all hard to do.

I set the spring to max tension minus 1 turn since I'm running mine open to the atmosphere. I did reconnect the hose but routed it so that the open end is facing down and toward the firewall so it'll lessen the chances of crap getting in there.
Awesome. Definitely doing a GFB and solenoid when we aren’t snowed under lol
I set the spring to max tension minus 1 turn since I'm running mine open to the atmosphere.
I read on some other forums that 2 turns back works good as well.
I read on some other forums that 2 turns back works good as well.
According to GFB it is really dependent on the vehicle and its setup. Some cars work great at full tension and some will have compressor surge at full tension. Since it was 8 turns in from the factory setting to full tension I decided to try 1 turn out and it's working just fine.
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According to GFB it is really dependent on the vehicle and its setup. Some cars work great at full tension and some will have compressor surge at full tension. Since it was 8 turns in from the factory setting to full tension I decided to try 1 turn out and it's working just fine.
Wish I had seen this post when I started my adventure with my GFB lol. Thanks for chiming in on mine. I now have a better understanding of what I gotta do to get mine to behave lol.
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