compression ratio, '88 5kcstq (motor)
auditude at neta.com
Wed Sep 13 12:49:16 EDT 2000
Orin Eman <orin at WOLFENET.com> wrote:
> > If I run a J&S Safeguard, would I still need or want the code
> > tweaked?
> You'll probably need 12 to 15 degrees of retard. can the J&S
> do that?
Here is what this website says. Ken
Specifications / Technical Data
Application: 4, 5, 6, or 8 cylinder (user selectable), four stroke
Rotary engine version (can retard only the knocking rotor face).
Odd-fire six ( Volvo, DeLorean, Maserati, GM). Mazda Miata MX-5
two coil direct ignition system
Knock sensor: Bosch or Delco (Application specific).
Active range: Knock sensor ignored below 1300 RPM.
Total retard capability: 10 degrees or 20 degrees (user selectable).
Retard mode control: Retard all cylinders/retard separate cylinders
Minimum step size: 1 degree
Maximum step size: 6 degrees (proportional to knock intensity)
Response time: Less than 2 revolutions (before knocking cylinder
can fire again)
Advance rate: 2 degrees every twenty revolutions
Retard disable: TPS or MAP sensor can disable retard function
below 1/3 throttle
Rev control: 4, 5, and 8 cylinders: skips every third cylinder (33%
drop in power) 6 cylinder engines: fires three, then skips two (40%
drop in power)
Over-rev If RPM goes one hundred RPM beyond the set point, it will
skip as many Cylinders as needed.
Adjustment method: Measure voltage at test point, adjust control
for desired trip point (6.78 volts Equals 6800 RPM, etc.)
Resolution: Adjustable in 50 RPM steps.
Rev control range: 3500 RPM to 10,000 RPM
Ignition type: Inductive discharge (drive coil directly, or can trigger
Dwell control: Constant energy type (dwell angle varies with RPM)
Coil current: Seven amps (coil dependant if not achievable in 3
msec., then dwell time is Set to 3 msec.) Higher current settings
available if user provides heat sinking
Coil off time: 350usec. Minimum
Triggering: Points OEM electronic, Magnetic pick-up, or Hall effect
(please specify if Hall effect)
Operating voltage: 5.2V minimum (cranking), nominal 12 Vdc,
Operating environment: 170 deg. F. maximum
Package: Std. automotive version: 5.0" x 6.5" x 1.2" Polished,
Marine/Racing (Fully sealed) version: 5.0" x 7.5" x 1.2" Polished
More information about the quattro