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Manual Boost adjustment problem.

Martens199

Expert
Joined
Oct 1, 2012
Messages
262
Location
Saskatchewan, Canada
Country
Canada
Snowmobile
2008 Yamaha nytro 153 mcx190
2015 SRViper mtx se 162 mcx270
I recently installed a turbosmart boost tee into my 190mcx nytro. I installed it with new lines and mounted it on the back of the sled. Once I had it together I pressure tested the system. I was only able to get a 5psi pressure test. So now that I had it installed I set it to the lowest position on the turbo smart and went and tested. I then found I was boosting high. When I first punched it, it would boost up to 8-9 pounds, then it would come down to about 7 when I kept holding the throttle to the bars. But if I would left off for a second then hit it again it would only reach 5psi. I tried turning down my wastegate setting but I was as far out on the push rod threads as possible and the boost tee was closed off. So if I clicked the tee up a notch it would over boost even higher at initial throttle but then settle to 6-7pounds after letting off and hitting it again.
I rode by buddies and itdid not seem to over boost like mine at first throttle application. It also seemed to boost quicker.
Any ideas??
 

Ok so you can just take off the knob and pull them out the end? Doesnt the controller just add tension to the spring and ball for higher boost, so removing it would just be like bypassing the controller?
 
Oh yeah I was definalty going to give it a try! Thanks I will let you know what happens.
 
Would you happen to know if its normal to have air come out the boost tee, The two small ports. just above the fittings?
When i was pressure testing I got bubbles coming from these little holes. I thought this wasn't right becasue it would be leaking off my air charge and not opening the gate as fast.
 
You can see the port in the picture you sent me. Its just above the fitting on the way out of the tee.
 
I also found a link to a video explaining the installation of the tee, it explains that for some sensitive systems the ball and spring should be removed for boost spikes! Thanks DooAssassin.
 


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