MSD6AL and Ready to run distributor question

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Rob
MegaSquirt Newbie
Posts: 13
Joined: Sat Jan 19, 2008 9:55 am
Location: Midwest

MSD6AL and Ready to run distributor question

Post by Rob »

I am switching over from fuel only to control the spark. I have a MSD 6AL box and a ready to run distributor. I have the distributor locked for no advance and vacuum removed. I am trying to determine what mods I have to make to my MS2 running the latest code. I do not use the Extra code. I have pin 24 on the ms2 hooked to the orange wire from the distributor. I have pin 36 hooked up to the white wire going to the msd box. I am not using the HEI module between the distributor and the relay box because I read I do not need it. Here are my settings for Tuner studio:
trigger offset 6 degrees
ignition input capture falling edge
cranking trigger trigger rise
coil charge scheme standard coil charge
spark output going high (inverted)
max dwell duration 25.5
max spark duration 25.5

source: viewtopic.php?f=89&t=39908&p=236196&hil ... es#p236196

My question is, what modifications do I have to do to my MS2? I have two computers I could use, one has Input: VR sensor and Output: High current direct coil drive,
and the other has Input: Hall and Output: high current ignition driver circuit
I read on a similar post that I would need to use the Hall input, (treat it as a points distributor setup).
Here is the post where Matt says “To use a ready to run distributor, you need to create a 12 volt pull up on the input by connecting pin 24 to a 12 volt source through a 1K resistor.”
viewtopic.php?f=38&t=39223&p=233323&hil ... rk#p233323

Is there a diagram for the input circuit mod I can find somewhere?
Also, Do I have to modify my Output circuit with the IGBT Pull up circuit shown on step 65 of the assembly manual? From the manual: Soldering a 1K Ohm resistor to the hole marked S12 immediately below R57 (this gives a 12 Volt pull-up)
Thanks,
Rob
Matt Cramer
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Posts: 2951
Joined: Sat Jul 03, 2004 11:35 am

Re: MSD6AL and Ready to run distributor question

Post by Matt Cramer »

Treat the RTR distributor as a set of breaker points. And no, you only need the IGBT pullup for Ford TFI ignition.
Rob
MegaSquirt Newbie
Posts: 13
Joined: Sat Jan 19, 2008 9:55 am
Location: Midwest

Re: MSD6AL and Ready to run distributor question

Post by Rob »

Matt,
What about the comment about the pull up on the input circuit? You spoke about it on the other post.
Thanks,
Rob
Matt Cramer
Super Squirter
Posts: 2951
Joined: Sat Jul 03, 2004 11:35 am

Re: MSD6AL and Ready to run distributor question

Post by Matt Cramer »

Yes, you need one. See the section on points for distributor triggering.

http://www.megamanual.com/ms2/pickups.htm
Rob
MegaSquirt Newbie
Posts: 13
Joined: Sat Jan 19, 2008 9:55 am
Location: Midwest

Re: MSD6AL and Ready to run distributor question

Post by Rob »

It fired right up,Thanks Matt!
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