Apex wont build boost

[pizann350]

Hi, I have a o6 apex 310 kit , on the weekend I changed the battery, I removed the intercoller, replaced battery, reconnected all hoses charge tube, all the connections on the throttle bodies are good, went out for a ride Saturday , all was good, then after about 5 km up the trail , I lost all boost, I've went through everything I can think of, there seems to be no excaust leaks, I put my hand over the muffler, and the motors stalls right away, can't seem to find any leaks between the intercoller and the turbo , the blow off valve is good, I have a manual turbo smart boost controller , I by passed it to see if it was causing a issue, no luck, the waste gate seems to be fine, I did notice the input wheel on the turbo , had little chips in it,from ice . if I put my hand over the intake of the turbo , there is suction there, I phoned mc express and they figure its my brain box, I just can't see it being that, any help would be appreciated, thanks

 

[BigFish BC]

does it have the altitude boost ajust valve ,ajusts boost as you go up in elevation.it can cause no boost if it fails

 

[08nytromtxa]

check intercooler for cracks, or a clamp may have come off between intercooler and throttle bodies and blowing your air out there.

 

[pizann350]

does it have the altitude boost ajust valve ,ajusts boost as you go up in elevation.it can cause no boost if it fails

hey big fish, no i dont think it does, its one of the first Mc express kits, it does sense barometric pressure but doesnt adjust boost at altitude, so i dunno, tomorrow im going to take the silencer off the turbo, and take a look at the turbo, thanks for your help

 

[pizann350]

check intercooler for cracks, or a clamp may have come off between intercooler and throttle bodies and blowing your air out there.

i checked the clamps and the boots between the throttle bodies and intercooler, there good, i will take a good look at the intercooler tomorrow, is there anyway i can pressure all this with air, and spray with soapy water, thanks for your reply,

 

[BigFish BC]

yes you can make a pressure tester with a pcv cap & a air fitting put in your turbo intake then pressure to 15-20psi.if you have a few miles check your exuast donuts & the flex belows at the back of the motor they are known to crack.

 

[pizann350]

Hey Big Fish, i found my problem, its my turbo the exhaust fins are chewed up bad, i took the bearing out of the center section of the turbo, i belive its from hauling it without a bag over the intake filter, we traveled 6 hrs i think it spun all the way to revy with no oil , i thought being a rear mount, it would be fine, live and learn, thanks for all your help