Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!think.com!ames!rex!wuarchive!uwm.edu!linac!att!bu.edu!transfer!lectroid!mm From: mm@lectroid.sw.stratus.com (Michael Mahler) Newsgroups: sci.electronics Subject: Need design help: Engine idler for turbo cooldown Message-ID: <5877@lectroid.sw.stratus.com> Date: 30 May 91 18:23:07 GMT Reply-To: mm@lectroid.sw.stratus.com () Distribution: usa Organization: Rolling along... Lines: 28 I'd like some help, please. I have a turbo driven car and am getting tired of having to wait for the turbo to cool down before shutting the car off (anywhere from 2-5 minutes). Sometimes I absolutely HAVE to get out of the car immediately upon arriving and just leave the car running, and I prefer not to do this. I'd like help designing a circuit that I could build and install that would let the car run an addition pre-selected time (AFTER I've removed that key from the ignition and left the car) and then turn the ignition off. I would like to be able to vary the delay, whether by a simple pot or by a keypad entry, but that's not important right now. I'm looking for ideas? Michael PS: Yes, I know these are available from some places but I refuse to pay $100.00 for $10.00 worth of of parts. -- -+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ What's said above has nothing at all to do with what's said by the company I work for.