MSD 6AL ----HELP!!!

[Curto]

Has anyone ever hear their MSD ticking?? After I have been driving it for a couple minutes it starts up and drives me crazy. If I take my foot off the gas pedal it stops ticking. WHAT IS UP WITH THAT???

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97 Acura GS
JRSC (6-8psi)
Walbro Fuel pump
CarTech FPR
MSD 6AL ignition, coil, distributor, wires
APEX AFC
DC Headers
DC Exhaust
CAI
AEM Cam Sprockets
Jet Racing ECU

Rice burning Sleeper
San Jose, CA

[SC HYBRID]

make sure no wires are touching the rotor inside the distributor,if you have wires in the distributor,also,check all the wire connections to be sure they are not touching anything.

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94 civic coupe/b18c1
JRSC @ 10 psi
Bosch pump,RC 310's
Cartech 20005
J&S Safeguard
Autometer electric fuel gauge
DC headers,custom CAI
V-AFC
STR GEARS (+4 intake,-1 exhaust)

[zip]

<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by Curto:
Has anyone ever hear their MSD ticking?? After I have been driving it for a couple minutes it starts up and drives me crazy. If I take my foot off the gas pedal it stops ticking. WHAT IS UP WITH THAT???
<HR></BLOCKQUOTE>

Its a bomb!!! J/K, the MSD ticks because it's a multiple discharge capacitive unit. The MSD fires multiple times before 3000rpm, after that it becomes a regular firing ignition system.

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Mods

[This message has been edited by zip (edited November 24, 2000).]

[Curto]

The loud ticking ended up being the fuel enrichment relay. I replaced it and now everything is fine. THANK GOD because that ticking was driving me nuts.

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********************************
97 Acura GS
JRSC (6-8psi)
Walbro Fuel pump
CarTech FPR
MSD 6AL ignition, coil, distributor, wires
APEX AFC
DC Headers
DC Exhaust
CAI
AEM Cam Sprockets
Jet Racing ECU

Rice burning Sleeper
San Jose, CA

[Import Tuner]

Zip:

I'm a little confused here...

Why would my MSD (Multiple Spark Discharge) system operate correctly (fire 5 shots of rated coil output) below 3000 rpm, but then switch back to a standard output system when my cylinder pressures increased (when I would need its features most)...

[zip]

<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by Peyomp:
It doesn't switch modes. Its just that above 3000rpms, there is not enough time to fire more than one spark per cycle. Even an MSD can't recharge fast enough to fire multiple sparks at +3000rpms. It does fire a "stronger" spark at those higher rpms in comparison to stock ignition systems.
<HR></BLOCKQUOTE>

Yeah, what he said.

Happy Holidays

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Mods

[Import Tuner]

That's what I was wondering...

It sounded to me like the MSD's abilities were eliminated after 3000 rpm (when in fact they were only diminished with MS limitations due to rpm)...

But you'd still produce a greater spark per cycle, by having saturation on each output of your MSD...

[Peyomp]

It doesn't switch modes. Its just that above 3000rpms, there is not enough time to fire more than one spark per cycle. Even an MSD can't recharge fast enough to fire multiple sparks at +3000rpms. It does fire a "stronger" spark at those higher rpms in comparison to stock ignition systems.



[This message has been edited by Peyomp (edited December 16, 2000).]