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 Post subject: My 68 Barracuda
PostPosted: Wed Jan 10, 2018 4:47 pm 
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Turbo EFI

Joined: Wed Sep 17, 2008 6:48 pm
Posts: 2092
Location: Indianapolis
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I had a thread going over on Sixers Gallery, the .org drag racers post here on the Virtual Dragstrip , and as that is where the 68 Barracuda is now I thought I would join in.

MPFI has been active for the past year on this car, the car has not got out much. Posting today as I got the MS3 Pro also running the ignition side. Nothing real exotic here, MDS box running a lean burn distributor, small MDS coil, but it works. The Mega Squirt has multiple options for ignition control, I sorted through those and have a few that run.

here is a video
https://www.youtube.com/watch?v=Q34zKinZ83E

a basic curve, 10 degrees at low RPM, 32 degrees at power

It is just nuts being able to change ignition curves with a key stroke, it can take hours taking down a distributor and changing springs / weights.
Well it can still take time getting the right MS settings, but once there you are there, you are key strokes away from a distributor re curve.

So this is done for now, I will be building a better Slant Six motor over the next few months, other than that,,waiting out the winter till spring.


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 Post subject: Re: My 68 Barracuda
PostPosted: Thu Jan 11, 2018 5:07 am 
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Joined: Mon Oct 21, 2002 11:08 am
Posts: 11699
Location: Blacksburg, VA
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Sounds great, John. I hope to join you soon with my MS3X doing fuel and ign.

Cheers!

Lou

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"You mean you still have a Slant 6 in that thing?"


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 Post subject: Re: My 68 Barracuda
PostPosted: Thu Jan 11, 2018 5:54 am 
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Joined: Tue Oct 29, 2002 8:27 pm
Posts: 9256
Location: Salem, OR
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Quote:
It is just nuts being able to change ignition curves with a key stroke, it can take hours taking down a distributor and changing springs / weights.
Well it can still take time getting the right MS settings, but once there you are there, you are key strokes away from a distributor re curve.


When I started developing the ignition maps for my next motor, I always laughed that about 30 minutes of populating cells
and the curve is done, and you can tweak it on the fly if needed with a person in the passenger seat. Sure does beat
time it takes to pull and tear down a dizzy for a respring, even if you spool it up on a machine instead of being in the car...

:)


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 Post subject: Re: My 68 Barracuda
PostPosted: Thu Jan 11, 2018 6:46 am 
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Joined: Mon Oct 21, 2002 11:08 am
Posts: 11699
Location: Blacksburg, VA
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This is even more convenient for fuel tuning, since you can tune all parts of the map rapidly.

Lou

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"You mean you still have a Slant 6 in that thing?"


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 Post subject: Re: My 68 Barracuda
PostPosted: Sat Jan 20, 2018 11:40 am 
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Joined: Thu Oct 17, 2002 7:27 pm
Posts: 11025
Location: Park Forest, Illinoisy
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I'm planning on doing efi on Mike's car. At my age learning to tune with a laptop seems more pleasant than playing in gas. :shock:

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