did I screw up my turbo?

05MoparSRT4 · Post by **05MoparSRT4** » Fri Jan 17, 2014 6:27 pm

Ever since I bought the car I noticed a flutter....but I always thought it was wastegate/bov flutter now I'm starting to wonder if it was compressor surge and I screwed up my turbo.....last week during the polar vortex I had a lot of fun with the cold weather I'm on a stock turbo running 15 pounds of boost. One day after boosting I wanted to boost again and it went up to 10 pounds and started dropping. At any speed, (lets say I was doing 50 mph) I would let go of the gas the flutter would happen and my gauge would read -20 vacuum side. Now it flutters and reads -28 almost -30 vacuum side on the gauge. Was the flutter compressor surge and I screwed up my turbo? The flutter happens any time I let off the gas if I hit the gas run it to 10 pounds let go it flutters or if I step on the gas to speed up a little the gauge goes to -10 vacuum I let go of the gas and it flutters...

TL;DR
Stock turbo 15 pounds. At any speed I let go of the gas I hear a flutter, if I'm at -10 vacuum accelerating from 50 mph-55mph let go of the gas it flutters, or if I'm going from 50-65 mph and the gauge reads 10 pounds let go of the gas it flutters.

PS. BOV is a turboxs looks like a recirculating bov.. it has no big horn

http://www.jscspeed.com/catalog/Turbo_X ... 373-1.html

first one is my BOV

When I was able to hold and boost at 15 no flutter and no BOV sound. It's quiet you don't even hear the pssss of the turbo

NyNeon0813 · Post by **NyNeon0813** » Fri Jan 17, 2014 8:18 pm

Are you sure your hoses are ran correctly and without and leaks?? That's where I would start

Adam G · Post by **Adam G** » Sat Jan 18, 2014 11:04 am

i know when is really cold out my bov has a hard time opening like it does on a warm day...happens to a used greddy type s and brand new hks

05MoparSRT4 · Post by **05MoparSRT4** » Sat Jan 18, 2014 7:45 pm

Hoses are correct, no boost leak on the boost leak test. It's getting more air somewhere though would be my assumption.

05MoparSRT4 · Post by **05MoparSRT4** » Sun Jan 19, 2014 2:42 pm

well the flutter is coming from the WGA on that rod....I noticed if I moved the rod/pushed the rod to the left, rev the engine let go flutter goes away. The lines are hooked up to a manual boost controller.....still no boost