[Diy_efi] Magesquirt vs D- jetronic

[Adam Wade]

--- John Nevius <jnevius at spiritone.com> wrote:

> FWIW, Bosch L-Jet through the late 80's (Volvo, BMW,
> Saab) only had a very crude accomodation for
> throttle position sensing.  They could read throttle
> closed (idle) and WOT only.  IIRC Saab was the first
> to use a "real" throttle position sensor.  They
> relied upon the AFM to trigger an increase in the
> fueling.  Generally these cars are considered quite
> driveable :-)

Okay, I overstated a bit.  :)  I should say that it is
a lot harder to get adequate drivability without a TPS
and "accel pump" feature in the ECU (whether
implemented in analog or digital); a lot will depend
on where the throttle(s) and plenum are located in
relation to each other and the intake runners (i.e., a
throttle a long way away from the runners, with a
large plenum between the throttle and runners, will be
less sensitive to the lack of "accel pump"
functionality in a given setup; a plenum BEFORE the
throttle(s), and the throttle(s) being extremely close
to the intake valve(s), will be much more sensitive to
the lack of "accel pump" functionality).

| 82 Honda CX500 Turbo (Cassandra)  90 Kwak Zephyr 550 (Daphne) |
| "It was like an emergency ward after a great catastrophe; it  |
|   didn't matter what race or class the victims belonged to.   |
|  They were all given the same miracle drug, which was coffee. |
|   The catastrophe in this case, of course, was that the sun   |
|     had come up again."                    -Kurt Vonnegut     |
| M/C Fuel Inj. Hndbk. @ Amazon.com -  http://tinyurl.com/6o3ze |

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