2014 2.0XT Premium CVT
Snitm- Did you also have the dealer check the other 3 clamps mentioned by Danoz (between airflow meter and before turbo), and perform ECU reset?
Mate, the 16psi is Subarus quoted max boost for the car. So that would be ideal, but as was mentioned by Geojosh there are a number of factors that come into play. Its never going to be spot on 16 all the time. But if you are sustaining 15 psi then thats OK I would say. 17 PSI is overshooting max boost. Also take into account after an ECU reset the car is in like a safe learning mode, so it uses a base map of conservative ignition timing, cam advance and wastegate settings until it learns how far it can push things. Just give a few more days or half to a full tank before checking clamp tightness. You CAN overtighten the clamps and cause leaks. Trust me, I have done it.XT seems responsive, etc. But I really didn't have "issues" that needed fixing like you guys in Australia, etc. I had Subaru replace the clamps as a preventative measure. One concern I had with doing so is that I'd create an issue (self fulfilling prophecy).
But before the Breeze clamps were installed I tested the FXT on relatively flat road (didn't find a sustained hill near me until later). I was consistently bursting to 16-17 psi, but holding around 15psi.
Now, when testing with the Breeze clamps I rarely get to 17psi. I do however burst to 16psi and hold at 14-15psi when keeping manual 3rd gear up a sustained incline. I know 16psi is considered the ideal sweet-spot but it seems I'm just shy of that.
It may just be that I now know what my FXT can do now after having been pushing the turbo with this testing, but it does feel quicker. And the turbo is more audible than it was without the Breeze clamps (I can hear it spool-up more noticeably).
So all said, please tell me how you think I'm doing. Is there potential that some clamps still aren't tight enough since I'm not quite getting to sustained 16psi?
Hi Danoz- say, I'm curious. . is there visual buckling when one overtightens the clamps, or can it be more subtle, requiring you to deduce there is overtightening based on observed PSI behaviour?You CAN overtighten the clamps and cause leaks. Trust me, I have done it.
Does anyone know if this got fixed for the 2015s?
I'd guess this is 2015, danozmax would need to chime in to be sure....
Oh, and the other day I dropped in a dealer and checked on the latest model what clamps they were using. Still Tridon. I do suspect the FA20DIT WRX has the same. Dumb asses!
No mate, its not fixed. About two weeks ago I visited a Subaru dealer and they are still Tridon brand clamps used. Also it appears the new WRX has the same clamps. The software update issued here in Aus by Subaru merely masks the symptoms of the fault (severe ping on boost, clouds of smoke, severe loss of power) and winds back performance accordingly. NOTHING has been revised or fixed.Does anyone know if this got fixed for the 2015s?
See here & danozmax’s following post.
If the T clamps came in 1/2” widths then you may be able to fit one at the TMIC inlet but I can’t see how you could fit these at the TMIC outlet & at the throttlebody inlet & still retain the rubber sealing insulators.
BTW - In addition to the advantages of the Breeze liner clamps that danozmax has mentioned; if you clamp a Breeze liner clamp & the standard Tridon clamp around the very ends of two identical tubes then look at the end view, you will see that the Breeze liner is superior to the Tridon, especially the part underneath & either side of the worm screw housing.
The design underneath the worm drive housing of the Tridon clamp damages the plastic intercooler to throttlebody pipe. The more it is tightened the more the pipe is damaged, so I would be very wary about tightening the Tridon clamps too firmly.