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> FI idle mixture knob ...
SirAndy
post Jan 16 2006, 06:13 PM
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which way is which ???

just got my FI back together and running (made a *new* harness out of 3 old ones) ...
runs great, no more bucking and missing ...

now, a question about the FI-Brain Idle Mixture Knob. i turned it CCW and the (warm) idle went up to ~1100, turned it CW and it went down to ~800 ...
i set it in the middle with the idle ~900 ...

is CCW lean or rich ???
(IMG:http://www.914world.com/bbs2/html/emoticons/idea.gif) Andy
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Rrrockhound
post Jan 16 2006, 06:53 PM
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Richer is clockwise.

See this
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Bleyseng
post Jan 16 2006, 08:11 PM
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Set it with the engine hot, maybe 15 minutes atleast.
Adjust the airbipass screw to set the idle speed then adjust the ECU knob for the best/smoothest idle speed. Readjust the airbipass screw if its now too high of a idle. (IMG:http://www.914world.com/bbs2/html/emoticons/chair.gif)
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Howard
post Jan 16 2006, 08:33 PM
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Wow, you used the 2.0 FI brain on your 3.6? Cool! (IMG:http://www.914world.com/bbs2/html/emoticons/beerchug.gif)
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SirAndy
post Jan 16 2006, 08:44 PM
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QUOTE (Howard @ Jan 16 2006, 06:33 PM)
Wow, you used the 2.0 FI brain on your 3.6? Cool! (IMG:http://www.914world.com/bbs2/html/emoticons/beerchug.gif)

actually, it's two 1.7L brains. makes for a sum of 3.4L, which is close enough ....

(IMG:http://www.914world.com/bbs2/html/emoticons/biggrin.gif) Andy
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Howard
post Jan 16 2006, 09:00 PM
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Ha! Watched 'Man With Two Brains' again last night on HBO or whatever. Great Flick!

But still only 3.4L Won't you be underbrained? (IMG:http://www.914world.com/bbs2/html/emoticons/aktion035.gif)
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SirAndy
post Jan 16 2006, 10:00 PM
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QUOTE (Howard @ Jan 16 2006, 07:00 PM)
But still only 3.4L Won't you be underbrained?

i use linear interpolation to extrapolate more brainpower out of the 3.4L Twin-Brain ...

The brains were re-chipped and each brain is now controlling 3 cylinders (see pic below).
the new chip compensates for the 6% lower brain-power per brain.

compared to the price of a '95 993 Twin-Plug Brain, this solution was a no-brainer!
(IMG:http://www.914world.com/bbs2/html/emoticons/beerchug.gif) Andy


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Howard
post Jan 16 2006, 10:49 PM
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I bow to the master (IMG:http://www.914world.com/bbs2/html/emoticons/smilie_pokal.gif) (IMG:http://www.914world.com/bbs2/html/emoticons/smilie_pokal.gif) (IMG:http://www.914world.com/bbs2/html/emoticons/smilie_pokal.gif) (IMG:http://www.914world.com/bbs2/html/emoticons/bs.gif) artist
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bd1308
post Jan 16 2006, 10:52 PM
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you didnt seriously trick 2 1.7L brains to run a six cylinder did you??

I call bs too (IMG:http://www.914world.com/bbs2/html/emoticons/laugh.gif) cant fool me

(IMG:http://www.914world.com/bbs2/html/emoticons/thisthreadisworthlesswithoutpics.gif)

b
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Twystd1
post Jan 16 2006, 10:58 PM
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It's not BS...

Scott kline did it on his V8 Shalom... Two brains that ran the engine...










Wait a minute....????



That was dream......





Never mind.



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Andyrew
post Jan 17 2006, 01:01 AM
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No wonder scott took so long..

Heck and to think I just cheaped out and bought a Holley FI system..
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Dave_Darling
post Jan 17 2006, 12:34 PM
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QUOTE (SirAndy @ Jan 16 2006, 08:00 PM)
QUOTE (Howard @ Jan 16 2006, 07:00 PM)
But still only 3.4L  Won't you be underbrained?

i use linear interpolation to extrapolate more brainpower out of the 3.4L Twin-Brain ...

Dude, you should'a run two 1.8 brains! It would have been much easier than tricking 1.7 brains.

Mmmm... Braaaaaaaaiiiinnnnsss....

--DD
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SirAndy
post Jan 17 2006, 12:53 PM
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QUOTE (Dave_Darling @ Jan 17 2006, 10:34 AM)
Dude, you should'a run two 1.8 brains! It would have been much easier than tricking 1.7 brains.

naa, i hate L-Jet ... at least the old ones from the early '70s ...
D-Jet was much easier to use. and re-chip.

plus, now that each brain only has to run 3 cylinders, there was some
extra brain-juice in each brain that could be re-directed to make up
for the 6% overall lack ...

i'm going to have the first Twin-Brain 914!
(IMG:http://www.914world.com/bbs2/html/emoticons/w00t.gif) Andy
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bd1308
post Jan 17 2006, 02:23 PM
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yeah with L-jet you just add some more resistors to the resistor pack.

b
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fiid
post Jan 17 2006, 03:25 PM
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Are you getting the 1.7 running Andy? How's it going? Let me know if I can help.

What's the timeframe on the 3.6?
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Howard
post Jan 17 2006, 04:26 PM
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Andy, hold everything. Found a brain that will work for you without any modifications.



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bd1308
post Jan 17 2006, 04:37 PM
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QUOTE (Howard @ Jan 17 2006, 04:26 PM)
Andy, hold everything. Found a brain that will work for you without any modifications.

do the men in the white coats still feed you solid food?
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SirAndy
post Jan 17 2006, 04:43 PM
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QUOTE (Howard @ Jan 17 2006, 02:26 PM)
Andy, hold everything. Found a brain that will work for you without any modifications.

damm, that's the brain i was looking for. checked with all the usual places, but no one had any good used "ABNORMAL" ones lying around.
they are hard to come by, i hear ...

that's quite a find! how much $$$ ??? if the price is right, i'll buy it from you!
(IMG:http://www.914world.com/bbs2/html/emoticons/idea.gif) Andy
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Mueller
post Jan 17 2006, 04:44 PM
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QUOTE (SirAndy @ Jan 16 2006, 05:13 PM)
which way is which ???

just got my FI back together and running (made a *new* harness out of 3 old ones) ...
runs great, no more bucking and missing ...

now, a question about the FI-Brain Idle Mixture Knob. i turned it CCW and the (warm) idle went up to ~1100, turned it CW and it went down to ~800 ...
i set it in the middle with the idle ~900 ...

is CCW lean or rich ???
(IMG:http://www.914world.com/bbs2/html/emoticons/idea.gif) Andy

even with your goofy 4 pipe exhaust we should be able to "sniff" the exhaust with the WB02 reader if'n you want to drive on over.....if not, I'll try and bring it the breakfast...
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ClayPerrine
post Jan 17 2006, 07:11 PM
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Actually, this is not so far fetched. Some of the very early Fuel Injected Mercedes V-8s used 2 4 cylinder D-Jet systems. It used a special set of trigger points with 4 contacts on it, and 2 complete throttle switches and MPSs.

I actually worked on one way in the past. It was a beast to get to run right when one of the MPS units blew the diaphram.....
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