Procharged 555 dyno results...
04-20-2016, 11:08 AM
#31
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Does a centrifugal charger add much noise? I'm guessing that there would be quite an induction howl. The reason I ask is that I'm going to have to notch my tall valve cover and wondering if it's worthwhile to try to accommodate fitting an air boot on there for a filter while I'm fabricating things to keep the engine bay noise minimal.
04-20-2016, 12:59 PM
#34
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Does a centrifugal charger add much noise? I'm guessing that there would be quite an induction howl. The reason I ask is that I'm going to have to notch my tall valve cover and wondering if it's worthwhile to try to accommodate fitting an air boot on there for a filter while I'm fabricating things to keep the engine bay noise minimal.
https://www.youtube.com/watch?v=dDxkI7KZNzs
Last edited by articfriends; 04-20-2016 at 01:02 PM.
04-20-2016, 02:07 PM
#35
Does a centrifugal charger add much noise? I'm guessing that there would be quite an induction howl. The reason I ask is that I'm going to have to notch my tall valve cover and wondering if it's worthwhile to try to accommodate fitting an air boot on there for a filter while I'm fabricating things to keep the engine bay noise minimal.
Last edited by GPM; 04-20-2016 at 03:56 PM.
04-20-2016, 08:12 PM
#36
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My vortech was obnoxious at idle, to the point I switched to a whipple. The vortech anything above idle is silent for the most part. The whipple by contrast is the opposite, silent at idle and whines under power. Which I'm ok with.
04-30-2016, 12:52 PM
#37
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Not real loud, this was my M-3sc on Crocketts dyno a while back at the 1000+ hp level : https://www.youtube.com/watch?v=wB5ZN0rYTo0
https://www.youtube.com/watch?v=dDxkI7KZNzs
https://www.youtube.com/watch?v=dDxkI7KZNzs
How hot does the housing get? I need to run the hose from the thermostat to the headers in that little space between the charger and valve cover.
03-25-2017, 03:26 PM
#40
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The rising pressure in this application does not effectively raise the lbs/hr flow of the injector because it is opening into a pressurized environment. The rising rate reg is necessary to maintain the same flow in lbs/hr under boost as it would at base pressure. Also, the M4 takes a bunch more power to turn then an M3, and with that AFR I'm thinking .55 to .6 bsfc
