Page 2 of 2

Posted: Mon Mar 08, 2004 8:43 pm
by vrg3
ciper - You mean that it would activate when throttle opening is high and vary duty cycle with manifold pressure or something like that? That's more or less what I meant in the post above, but I wasn't thinking of including mapping.

Posted: Mon Mar 08, 2004 10:53 pm
by ciper
My idea would be easier and cheaper to build. It would be fairly tunable too, adjusting for pressure with a rrfpr for example.

Posted: Mon Mar 08, 2004 10:59 pm
by vrg3
I'm confused -- what are you comparing your idea to?

Posted: Mon Mar 08, 2004 11:01 pm
by ciper
To using more complicated electronics like injector driving ECU.

Posted: Mon Mar 08, 2004 11:04 pm
by vrg3
Oh. I meant this:
vrg3 wrote:But if you wanted to go a lot simpler you could just set up a little PWM circuit that used MAP sensor voltage as a control signal. All you need is some kind of function generator (sawtooth is ideal) and a comparator.