Bouncing boost
#21
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we sell a 38mm to 44mm adapter flange if your interested. Also I use Tial wastegates, and we use them on all of our cars in the shop. Never had a problem with one.
Here is a link to the adapter.
http://www.verociousmotorsports.com/...Flange-T304-SS
Here is a link to the adapter.
http://www.verociousmotorsports.com/...Flange-T304-SS
#22
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I dont have the wastegates in front of me, but i think the 44's might be larger in height. I'm not positive though. YOu could always just cut off the 38 flange and weld on the 44 v-band flange.
BTW sometimes I have the same problem with the 38 wastegate. I just live with it though. I forgot to add that haha.
BTW sometimes I have the same problem with the 38 wastegate. I just live with it though. I forgot to add that haha.
#24
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So just to let everyone who was interested.... I installed my new Synapse WG and what a huge difference. The boost is sooooooo much smoother as is comes up to full boost and theres no more bouncing or fluttering. In general, the acceleration is alot smoother under partial throttle or wot.... and spool up time is alot quicker. If anyone is having funny boosting issues like I had... I recommend the synapse wastegate. It def fixed my problem.
#26
#30
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So just to let everyone who was interested.... I installed my new Synapse WG and what a huge difference. The boost is sooooooo much smoother as is comes up to full boost and theres no more bouncing or fluttering. In general, the acceleration is alot smoother under partial throttle or wot.... and spool up time is alot quicker. If anyone is having funny boosting issues like I had... I recommend the synapse wastegate. It def fixed my problem.
#31
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Thank you so much for the follow up! I've been having the same issue on a dezod s1 kit, the boost flickers from 5-8 so bad that it just made it really hard to tune, from jumping all over the fuel map! I will be installing a different wastegate when I reinstall everything! Thanks again!
#32
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No both show a flickering boost level, like the Fic would jump around half way across the map. I'm gonna just try a different wastegate.
#33
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I suppose it wont hurt to try, but also look for a boost leak. I did this with an old car and found my leak. I used a pvc end cap the same size as my charge piping and threaded and sealed an air hose fitting into the flat end. I then attached it to a coupler from my intake piping and gave it about 8-10 pounds of pressure from my air compressor while the engine was off. This way, it is silent (after your compressor is off obviously) and you can listen all around the engine bay to try and locate a leak.
#34
![Default](https://www.scionlife.com/forums/images/icons/icon1.gif)
I suppose it wont hurt to try, but also look for a boost leak. I did this with an old car and found my leak. I used a pvc end cap the same size as my charge piping and threaded and sealed an air hose fitting into the flat end. I then attached it to a coupler from my intake piping and gave it about 8-10 pounds of pressure from my air compressor while the engine was off. This way, it is silent (after your compressor is off obviously) and you can listen all around the engine bay to try and locate a leak.
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