Mine makes no noticable noise.

 

Get a different bov.

 

I think the RZR Turbos waste gate system is similar to Subaru's waste gate, they are bypassed to the intake track making them very quiet. Atmospheric waste gate are the one that are loud and they are not suitable for the RZR off road environment.

 

I don't hear mine either. But you may like the evo bov, vent to atmosphere.

 

Wow, you all know your shit! Many thanks.. With nothing to compare it to I wasn't sure how it was supposed to act. Again, thank you all very much :

 

Doesn't the Waste gate control the pressure of the turbo by a vacuum actuated arm. The Blowoff valve releases pressure on the boost side of the turbo when the throttle is shut by vacuum. When not in boost vacuum opens the BOV. My blow off valve bleeds pressure until WOT.

So are we talking about the waste gate or the BOV?

I know some waste gates vent to atmosphere but it doesn't on our RZRs

 

He is looking for the bov. Evo sells one that you can hear.

 

Get the BMP.

 

It sounds awesome. Love it

 

I had problems with my BMP BOV and their vent to atmosphere kit after 15 hours of use. At this point wish I went with different company now. It could have caused me a lot of money too. An o ring fell off the plunger and was found in the vent to air filter kit which also fell apart. When I email them about this issue and to ask for another o ring that fit tighter, they told me to source a new o ring from a local hardware store. If I didn't have the vent to air kit the o ring would have migrated to the turbo. Then possibly into the engine of it didn't mess up the turbo before hand. They did send me a replacement filter by the way.

I also purchased a slip on exhaust from them. When I received the exhaust it came with a bunch of sandy material in it which scuffed all the surfaces during the shipping process. Also the heat shield was bent. The exhaust looked old before it was installed. They sent me a new heat shield and I removed the old one and riveted on the new one my self. The powder coat on the new sheild is already flaking off. Pretty sad.

I think at this point maybe EVO would have been a better purchase since I feel the customer service from BMP is not what I would have expected. I would love to send back the products that have given me these problems and get them from someone more receptive to make things right.


I do like their adjustable clutch weights and the bully dog tuner with their tunes.

I hate posting stuff like this.
This is just a heads up and not a debate.

 

Oh I'm very grateful for the schooling I'm getting on turbos and what goes with them. Don't hold back on my part I like it. Also, now I know that my Turbo is operating like it should. I know it hauls ass!

 

I have gone the bikeman route with both my 900xp and xpt and have been very happy with them.. .sorry to hear your have issues.

 

I have seen many issues with BMP products as well, they did try to take care of it but caused lots of headaches along the way..Evo has been top notch with quality products!

 

I have the EVO BOV and you know it is working... Another part of the fun!!

 

Any blow off valve for a VW 1.8T will work. You can get the same ones off Ebay for $20-25 that these after market companies sell with their name engraved on them for $125.

25MM Universal Turbo BOV Diverter Recirculating Bump Blow OFF Valve Black | eBay

 

Wow, that is the same BOV that I bought from BMP. Do you think the spring might be different?

 

I doubt it. Most of the VW/Audi ones are setup for a max 20lbs of boost. With the rzr using a cvt I dont think most would even notice a difference. I'm using the Turbosmart Kompact setup for a VW and it works as good as a stocker that is working correctly. It is a little pricey though. Friends using the one I posted above work just as well.

Kompact Plumb Back-25mm

 

We have no issues with our BMP kit.

 

Dang way cheaper. Anyone tried it

 

I've got a $45 one from eBay that looks exactly like that Evo and BMP one and it works great.

 

if you are just after the sound you can vent your stock BOV to atmosphere. Just unhook the hose from the air intake and cap the opening. then put a crankcase vent on the hose from the BOV. Instant BRRAAAPPP....pshhhhhhhhh. I did it for 6$. if you are running through deep water or mud you will have to run that hose up past the water line or take the hose off completely.

 

I see exactly what you mean in the picture. But I was not interested in hearing the valve operate though its a cool sound I like very much. I was wanting to be sure my turbo was at work and hearing the valve would pretty much tell me.

But I got educated here in the forum on how they work in my case and as long as it keeps planting me in the seat when I punch it, I guess I don't need to hear a valve slam.

 

here is a picture of what it looks like.

 

What size is the filter where the hose connects? 25mm?


Sent from my iPhone using Tapatalk

 

EVO working well for me, sensitivity can be adjusted to your liking. One bit of advice, don't mount the control upside down. You may find yourself looking for tiny springs and balls.

 

I tried lot of BOV , expensive and brand names and on the end found this one work best on both Z1 swaps.
SS Style BOV Flange

milos

 

I tried lot of BOV , expensive and brand names and on the end found this one work best on both Z1 swaps.

SS Style BOV Flange



milos

That's exactly what I have.

 

Milos and glamis fan what spring and setting do y do on that SS bov? I ordered the same one and am curious which spring and stuff to use. I am in a 2017 xpt.

 

Actually springs in the BOV have a nothing to do with the boost. They just help to keep valve closed under vacuum. If you vent the BOV back to intake like the XPT do, you really don't need to be worry which spring to use. I vent the BOV to the outside with small K&N filter on outlet and using stiffest spring in the kit.
You get little more blow off noise with the stiffer spring.
milos

 

Been running the medium spring. But I need to try the stiffer one to see if it doesn't pop off as easy?