Quote:
Originally Posted by rotrex
No surge, the (smallish) compressor was operated near the choke limit. Too much flow with too little pressure. A C30-74 is too small for a well flowing 1.8l 16V engine revving 7000+ rpm. I only got 0.6 bar out of it at max turbine revs. That's why I now run a C30-94.
Pressure did not change as did mass flow. Why should it. 5g/sec extra is not much at 200g/second.
The noise was not loud either, but you could hear it as there is no other intake noise.
I don't think it is something critical. Could be just the noise of fluid being "processed" by the turbine.
I don't have a picture. It is just a nozzle on the side of a pipe.
Throttle body-----horizontal straight pipe-----45?bend---short straight pipe with nozzle on side---45? bend back to horizontal---supercharger inlet.
This sound pretty much exactly like it
https://www.youtube.com/watch?v=LO0MGrkEWzI |
Thanks for that video. Although I do not like the sound it is making. Maybe you are injecting too much water ?
Could you re-test with a smaller nozzle and check if it makes noise aswell?