Twin Charged, Compound boost with BW S475 Turbo and TVS 1900 Blower
Jul 2, 2009 | 07:06 PM
#51
9 Second Truck Club
iTrader: (16)
Joined: Sep 2006
Posts: 3,655
Likes: 5
From: Colorado Springs, Co/ Central, Ca
It's still boost creeping... Moved the WG to as close to the turbo as I could, put a new flex with out any internal lining and still makes 7-8 psi in 1st, jumps to 15psi and climes to 18 in 2nd, then 20+ in 3rd. You would think a 50mm gate should do the job on a 346... Here's some pics.
And here is a quick vid, don't know why the sound wont work...
Jul 2, 2009 | 08:24 PM
#55
Seems like it might need a diverter for the exhaust flow.The air will choose the path of least resistance.Sometimes causes a vacum at the tap.I work with HV ducting and have wittness a tap actually sucking air in a S/A system.
Jul 3, 2009 | 10:19 PM
#56
TECH Veteran
Joined: Sep 2003
Posts: 4,534
Likes: 3
From: Las Vegas, NV
It's still boost creeping... Moved the WG to as close to the turbo as I could, put a new flex with out any internal lining and still makes 7-8 psi in 1st, jumps to 15psi and climes to 18 in 2nd, then 20+ in 3rd. You would think a 50mm gate should do the job on a 346... Here's some pics.And here is a quick vid, don't know why the sound wont work...
Jul 4, 2009 | 12:19 AM
#59
On The Tree
iTrader: (7)
Joined: Sep 2005
Posts: 142
Likes: 0
From: Miami, Florida
Hey guys, I'm no expert on blowers or turbos for that matter, but could it be possible that once the turbo builds boost the blower becomes the restriction? No matter how much air the turbo pushes, the blower is still controlled by the engine speed. Where is the boost gauge reading from? By the way, that vid is crazy, Good luck on the build.
Jul 4, 2009 | 10:51 AM
#60
Zippy brings up a good point, this is why we run three boost gauges on the compound diesels. One for the drive, one for the second, and one in the manifold after the intercooler and such.