Possible bernouli effect in plenum ?
Possible bernouli effect in plenum ?
(OP)
Hi All,
I made up a plenum thats sits atop of a twin 50mm IDA throttle body. Inside the plenum is two 50mm ram tubes / bellmouths ... now this is on a turbo charged rotary, and i have a 3" inlet coming in the firewall side of the plenum perpendicular to the ramtubes...
My concern is that because the ramtubes finish about 3/4 of the height of the incoming 3" tube , effectively allowing the incoming charge to blow across the top of the tubes , could this cause a bernouli effect ??
Im not sure since the plenum is sealed and all air entering will be forced into the ramtubes and into the motor... but can a slight bernouli effect partly counteract the flow into the tubes and lower the effeciency ?? As in kill off the top end or something...
it been something that has worried me since i built it .. figured i'd thro it out the for some experts... as its abit over my head.
Thanks
Gary.
I made up a plenum thats sits atop of a twin 50mm IDA throttle body. Inside the plenum is two 50mm ram tubes / bellmouths ... now this is on a turbo charged rotary, and i have a 3" inlet coming in the firewall side of the plenum perpendicular to the ramtubes...
My concern is that because the ramtubes finish about 3/4 of the height of the incoming 3" tube , effectively allowing the incoming charge to blow across the top of the tubes , could this cause a bernouli effect ??
Im not sure since the plenum is sealed and all air entering will be forced into the ramtubes and into the motor... but can a slight bernouli effect partly counteract the flow into the tubes and lower the effeciency ?? As in kill off the top end or something...
it been something that has worried me since i built it .. figured i'd thro it out the for some experts... as its abit over my head.
Thanks
Gary.





RE: Possible bernouli effect in plenum ?
RE: Possible bernouli effect in plenum ?
If you're accessing supposed high pressure air from windshield base,it's not enough to charge your 3" inlet anyway I'd guess
.. I'd get rid of the ram tubes anyway. Why do you need ram tuning with a turbo? Turn up the boost man!