Air Pump CFM
07-29-2014, 02:26 PM
#16
Electron Wrangler
Lifetime Rennlist
Member
Lifetime Rennlist
Member
I supect the answer on airflow for an '83 vintage airpump is: ....not very much at all any more...
Do you have any kind of valve in the upstream hose back to the temp sensor?
Assume you are trying to improve hot idle performance of the alternator - I think an electric fan in the hose would likely be a far more effective solution to this.
In the end our alternators are not a great designs for this application - the rear to front flow is a bit silly given the installed position. At idle conductive & radiant heat transfer are still both problems.
Better solutions could be a dual fan rear & front intake/center outlet alternator body and/or relocating the regulator & rectifiers remotely for better cooling (of both).
Anyway I'd be surprised if this was a major issue in Chicago for anything but a few days a year ??
Alan
Do you have any kind of valve in the upstream hose back to the temp sensor?
Assume you are trying to improve hot idle performance of the alternator - I think an electric fan in the hose would likely be a far more effective solution to this.
In the end our alternators are not a great designs for this application - the rear to front flow is a bit silly given the installed position. At idle conductive & radiant heat transfer are still both problems.
Better solutions could be a dual fan rear & front intake/center outlet alternator body and/or relocating the regulator & rectifiers remotely for better cooling (of both).
Anyway I'd be surprised if this was a major issue in Chicago for anything but a few days a year ??
Alan
