Rich, Below are two pics of my LED indicator light, to show when my TT box is actually working...
http://dpgoldman.com/volkswagens/images/new/fullthrottle.jpg http://dpgoldman.com/volkswagens/images/new/160mph.jpg I hooked it up to the waste-of-time OXS circuit, which consisted of connecting a wire from the full throttle switch to the trigger on the OXS box (mounted on the speedo cable after the firewall in the engine compartment). I changed the standard red LED to the yellow, as red isn't a good sign when it keeps flashing on the dash. Lastly, I removed the black metal piece with the icons (signals, headlights, etc), scanned it into photoshop, added the TT logo, and then printed it out on a decent printer. Just wanted to give ya'll some ideas. Denis G. 87 gti 16v 2008cc 01 audi a4 1.8tqmsxc --- Rich Blake <[email protected]> wrote: > Well, after testing the module with the "butt dyno", > it definately does work > from 4500 to 7000. Not huge but definately an > improvement. However the pot > I used is pretty crappy and adjusted itself after 10 > minutes of smashing the > throttle. I am going to install a fixed resistor at > 1100 ohms unless > someone can give me reasons to go higher than that. > I like the full > throttle LED idea, this is probably the best > solution to the low rpm bog > issue. An RPM sensing circuit looks nice on paper > but from what I have > gathered cannot be easily designed to work in this > Bosch system. My > electronic theory knowledge isn't what it used to be > so I'm going with the > k.i.s.s. principle. > > I did do some research on RPM sensing circuitry and > it can be done based on > the LM2907 IC. > > LM2907/LM2917 specs > www.ee.washington.edu/stores/DataSheets/linear/lm2917.pdf > > There are many applications, I happen to like the > LED tach kit which could > be modified to make a mutli range shift light array > AKA F1 and ALMS cars. > > LED Bar Tachometer circuit > http://www.t-r-j.com/Auto/Tach/tachometer.htm > > Thanks for everyone's input. > > Rich Blake > > > > > > > _______________________________________________ > a2-16v-list mailing list > [email protected] > http://mail.a2-16v.com/mailman/listinfo/a2-16v-list > For list archives, see listinfo link above.
