Welcome to the forum, what boost are you running tuner? Aftermarket blow off ? Usually only see this from some one pushing alot of boost

 

This is a known problem but rarely seem on a stock tune. You can search this and get more info. I am running 20psi of boost and mine has done fine but I replaced it before I was left with a broken intake.

 

a lean pop can break them

 

100% stock tune, no aftermarket parts

 

Seems all the failures I’ve seen are right at the seams where the two parts are glued together. Maybe BRP should partner with Gorilla Glue and maybe they will last a bit longer. I seem to remember the availability of aftermarket intakes in some older posts. Did the engine sound any different before the failure?

 

Go aftermarket


Sent from my iPhone using Tapatalk

 

cheapo plastic glued together in mexico
I surprised they all dont fail
mine made it to 30 psi before I put a band-aid on it
and it never did fail with lots of 30psi on it

 

should we run bailing wire round them for safety? I heard someone mentioned zip ties and epoxy? This would suck balls if it fell apart

 

I filled the voids with epoxy and used hose clamps around mine

 

band-aid

 

View attachment 245393

band-aid

What size clamps Chris?

 

What would cause a lean pop? Need to bullet proof my machine so it never leaves me stranded. Sure appreciate your comments and ideas.

 

Those hose clamps should keep it from ever separating. I'm going to epoxy it back together and do the same. Thanks.

 

OP, can you tell me if there is a rubber o-ring gasket or any type gasket between the two halves, or are they just glued together?

Thanks!

 

Have not pulled it out yet but it does look like there is a gasket between the two halves. It appears to only have separated on the right (passenger) side. I'll remove the manifold, try and completely separate the two pieces, clean it up and epoxy back together and use some type of support like clips or wrap around bands or something. Will keep you posted.

 

I put springy "binder clips" on mine from Office Depot.

 

A blow off valve will not help this.

 

Chanses are the plenum is made out of ABS. So ABS adhesive would be better than epoxy as it would melt into the plenum, where as the epoxy would only be on the serface edges.

 

Sorry to revive this old thread but this is something worth doing to prevent down time or a ruined weekend. This would be a good thing to add when people ask "what's the first things I should do?" (Grease bearing, remove wheel scrapers, reinforce plenum etc)

What size clamps will work?

Previous post about ABS glue being better than epoxy. That sounds great if the part is in fact ABS. Is it ABS?

 

once they break they are probably not repairable
plastic zip ties do not have enough strength do do anything

 

Yes but how about adding glue before it breaks?

 

If you want black hose clamps put shrink wrap on the bands. Looks very nice.

 

This is what I did and so far it has held up great with almost 1000 miles @ 30 psi.

Drilled around the perimeter.

Tapped for stainless 5mm button head machine screws that were long enough for washers plus a nylock on the opposite side.

Installing fasteners. I used Vibra-tite on the threads.

Filed the perimeter with a rasp file and used Permatex Black Plastic Welder to run a bead around the manifold.

Done

 

Awesome. Looks good. Thanks for the write up! Your posts have helped me a lot.

 

What size hose clamps will be needed for it?

 

Welcome from Oregon
This is a 4 year old post.
Hose clamps for what specifically?
Are you having issues with something?

 

To properly measure for clamp size, get a string and wrap it around the intake plenum. Use the string length to determine how big the clamps need to be. Then add about an inch or so.

 

Ah , that's right, the good old plenum clamp trick. 🤔

If the OP is running high pressure I would go billet from LaRue or Whalen.

edit: Whalen

Can-Am X3 Billet Intake Plenum Systems

Don't let your stock intake plenum restrict you or break and leave you stranded. Gain more power and strength with LaRue Performance's aftermarket billet intake plenums. These bolt on plenums are reliable and will hold up to high boost applications. They provide an even balance of flow to each...

www.larueperformance.com

WSRD Ghost Small Runner Billet Intake Manifold | 2017-2025 Can-Am X3

Introducing the WSRD Ghost Intake Manifold!

www.whalenspeed.com

 

It appears the plastic stock plenums ALWAYS blow apart on the seams. Just use a better bonding adhesive or grind a V grove in the seam and fill it in with JB weld .
The sealing onto the head is also shaky at higher boost with the stock plenum, you really need a tight O ring seal.

So it comes down to buy a machined aftermarket plenum with a center intake for a balanced charge. If you are going after 300+ hp get a 6 injector model.

Plan it all out forehand, make sure your tuner supports whatever you do, some tuners whine if you don't buy their 4 or 5 hundred dollar injector set. That is their hook on your pocket. I know this as a fact, I fell for this when I was a rookie.

Most 45mm class aftermarket turbos call for 1200 to 1400 cc injectors ($450) for a set of three. A set of 6 stock X3 XRS
(675cc $35ea) provides a more effective solution and keeps money toward a machined 6 injector plenum.

 

It appears the plastic stock plenums ALWAYS blow apart on the seams. Just use a better bonding adhesive or grind a V grove in the seam and fill it in with JB weld .
The sealing onto the head is also shaky at higher boost with the stock plenum, you really need a tight O ring seal.

So it comes down to buy a machined aftermarket plenum with a center intake for a balanced charge. If you are going after 300+ hp get a 6 injector model.

Plan it all out forehand, make sure your tuner supports whatever you do, some tuners whine if you don't buy their 4 or 5 hundred dollar injector set. That is their hook on your pocket. I know this as a fact, I fell for this when I was a rookie.

Most 45mm class aftermarket turbos call for 1200 to 1400 cc injectors ($450) for a set of three. A set of 6 stock X3 XRS
(675cc $35ea) provides a more effective solution and keeps money toward a machined 6 injector plenum.

and how do you drive these extra injectors...oh ya a $5000 ecu...LOL

 

The dual injector sets need to be wired in a parallel config, and it's a 6 port machined fuel log that's required, but you weren't going to use the stock plastic one anyway.

The MAV R uses this 6 injector configuration.

My mistake on the injectors, it's the stock RR injectors (0280158454) that are approximately 600cc/min at 3 bar