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 Post subject: Unusual FI Set-Up
PostPosted: Sun Apr 05, 2015 9:32 am 
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Turbo Slant 6

Joined: Tue Jul 10, 2007 8:08 pm
Posts: 616
Location: Nelson, B.C.
Car Model:
I picked up this combo from an old timer in my town recently who had it on his '41 Plymouth. He did not install the system but rather it was cobbled together from the previous owner who hatched this brainchild over a few years and supplied a binder full of info on how to make it work and what is needed etc. I have yet to delve into this page turning novel but it's on my to-do list before I even turn a wrench. Here is the visual part which is a dual carb Offy intake with dual throttle bodies.
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The injector and computer side of things appear to be from a mid-'80s batch fire Oldsmobile V-6. I need to remove my fuel tank to do some body work, so this will be a good opportunity to install a pump in the tank and add my return line. Besides that I just really need to do some homework. I won't be starting the install for a month or so while I clear the garage from other Winter projects but I'm pretty excited to dig in.
Feel free to ridicule and criticize my plans as needed.

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 Post subject: no ridicule from me...
PostPosted: Sun Apr 05, 2015 10:38 am 
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Turbo EFI
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Joined: Wed Nov 23, 2011 11:07 am
Posts: 2125
Location: SF Bay Area
Car Model: 67 dart 2 door hardtop
I just wanted to comment on how nice the system looks, very clean and tidy; hope it works out for you.

brian

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PostPosted: Sun Apr 05, 2015 10:50 am 
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Turbo Slant 6

Joined: Tue Jul 10, 2007 8:08 pm
Posts: 616
Location: Nelson, B.C.
Car Model:
'67 Dart 270 wrote:
I just wanted to comment on how nice the system looks, very clean and tidy; hope it works out for you.

brian


You and me both Brian. The red brace on the injectors is actually a piece of old bed frame I think and was used to keep the fuel rail from pulling out. It will be the first thing to go.

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 Post subject:
PostPosted: Sun Apr 05, 2015 5:31 pm 
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Board Sponsor & SL6 Racer
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Joined: Fri Nov 08, 2002 4:48 pm
Posts: 5835
Location: Burton BC canada
Car Model:
http://www.slantsix.org/articles/bryan_ ... ong-fi.htm

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Yeah....Im the one who destroyed this rare, vintage automobile.....

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 Post subject:
PostPosted: Sun Apr 05, 2015 7:40 pm 
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Board Sponsor & Contributor

Joined: Thu Oct 31, 2002 5:39 pm
Posts: 24233
Location: North America
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Keen!

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 Post subject:
PostPosted: Sun Apr 05, 2015 8:23 pm 
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Supercharged
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Joined: Sun Nov 03, 2002 9:20 pm
Posts: 13008
Location: Fircrest, WA
Car Model: 76 D100
Nice! More details and pics please!


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 Post subject:
PostPosted: Mon Apr 06, 2015 3:49 am 
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Board Sponsor & Moderator
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Joined: Mon Oct 21, 2002 11:08 am
Posts: 16451
Location: Blacksburg, VA
Car Model:
Very cool. You might consider running the EFI with Megasquirt. See msefi.com and diyautotune.com.

Lou

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 Post subject:
PostPosted: Mon Apr 06, 2015 9:12 am 
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Turbo Slant 6

Joined: Tue Jul 10, 2007 8:08 pm
Posts: 616
Location: Nelson, B.C.
Car Model:
sandy in BC wrote:
http://www.slantsix.org/articles/bryan_long-fi/bryan_long-fi.htm


That's the one Sandy, thanks. ('41 Dodge not Plymouth) I had a feeling there was something floating around the interwebs about this set-up. I think there has been considerable tweaking and tuning since changing hands from the original builder. Everything was running great...until it wasn't for the fellow that I bought it from. It was running really rich and he tried a few different tricks to fool the computer into leaning it out but ultimately he just wanted something more mechanical that he knew better. Upon diss-assembly he discovered that the vacuum port sensor? was unplugged. Whoops. Regardless, I'm stoked to learn about something new and have a bit of fun in the garage.

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 Post subject:
PostPosted: Tue Apr 07, 2015 2:15 am 
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EFI Slant 6
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Joined: Sun Mar 08, 2015 12:40 am
Posts: 351
Location: Castle Rock
Car Model:
I wish I had this and some money to make an easy plug and play fuel injection system for the slant six.

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 Post subject:
PostPosted: Tue Apr 07, 2015 7:55 am 
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Turbo Slant 6

Joined: Tue Jul 10, 2007 8:08 pm
Posts: 616
Location: Nelson, B.C.
Car Model:
As far as additional pics, there isn't much to see except some very well labeled wires and the computer with a few fuel lines. I'll know more once I start doing my homework and sorting through the tangle. I would like to see if I can make this system work as-is but have considered using mega squirt for my plan B.

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 Post subject: Duel throttle bodies
PostPosted: Sat Apr 25, 2015 8:00 am 
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TBI Slant 6
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Joined: Fri Jul 09, 2010 10:21 am
Posts: 111
Location: Sacramento Ca
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Very cool. Can't wait to see how this project comes along.On other sites i have heard people having problems with the ecm controlling or reading two throttle bodies instead of one for things like throttle position sensor and idle air control motor. I never heard how they fixed the problem.

I have rebuilt many systems from V8 boats with duel TBI from Chevy trucks but I am always told the stock ECM has been modified. Maybe the early Olds style ecm will work fine. Keep us up dated.

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 Post subject: Re: Duel throttle bodies
PostPosted: Sat Apr 25, 2015 10:24 am 
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Turbo Slant 6

Joined: Tue Jul 10, 2007 8:08 pm
Posts: 616
Location: Nelson, B.C.
Car Model:
Doctor Injector wrote:
Very cool. Can't wait to see how this project comes along.On other sites i have heard people having problems with the ecm controlling or reading two throttle bodies instead of one for things like throttle position sensor and idle air control motor. I never heard how they fixed the problem.

I have rebuilt many systems from V8 boats with duel TBI from Chevy trucks but I am always told the stock ECM has been modified. Maybe the early Olds style ecm will work fine. Keep us up dated.


I'm pretty keen to get working on this system as well but I need to button up some other projects before opening a fresh can of worms. I'll try to document my progress when I get started and post it here.

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 Post subject:
PostPosted: Tue Apr 28, 2015 4:00 am 
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EFI Slant 6
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Joined: Tue Aug 19, 2003 3:52 am
Posts: 264
Location: Helsinki Finland
Car Model: 1966 2D Dart
Are you planned to use 2 MAP sensors as there is now 2 separated manifolds?

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1966 Dart. 170 cu.in. 200 rwhp.


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 Post subject:
PostPosted: Sat May 09, 2015 4:32 pm 
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Turbo Slant 6

Joined: Tue Jul 10, 2007 8:08 pm
Posts: 616
Location: Nelson, B.C.
Car Model:
lgu32 wrote:
Are you planned to use 2 MAP sensors as there is now 2 separated manifolds?


I'm not entirely sure yet. this was a functioning FI set-up already. I still need to do a lot of homework before I dig in.

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 Post subject:
PostPosted: Sat May 09, 2015 4:49 pm 
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Board Sponsor & Contributor

Joined: Thu Oct 31, 2002 5:39 pm
Posts: 24233
Location: North America
Car Model:
lgu32 wrote:
there is now 2 separated manifolds


I don't agree. The Offy 2×1 intake has a balance tube connecting the front 3 and the rear 3.

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