Speeduino efi 1981 gl1100

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desertrefugee
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Re: Speeduino efi 1981 gl1100

#31

Post by desertrefugee »

My head hurts and I seriously appreciate the sixteen (yes 16) simple carburetors running on my current stable of 3 motorcycles.

But, I really admire the persistence and devotion to a project illustrated by this effort. I wish you the best with it.

Also, and sorry if you already touched on it, but the taller intake stacks (PVC?) were put in place to accelerate the airflow...or some other purpose?
- Life is not about waiting for the storms to pass. It's about learning to ride in the rain.
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Re: Speeduino efi 1981 gl1100

#32

Post by Mojogameplay »

So yeah. The intake is made from PVC with a faceplate made of polycarbonate. As far as the design goes. I read somewhere that taller velocity stacks made for better idle and cruising characteristics. While shorter velocity stacks make for better high speed wide open throttle. Also I wanted enough area to install the inlet air temperature sensor. As the design is only meant to provide some air filtration and cap the face of the throttle bodies, and is only meant to be used for testing purposes, I didn't really spend too much time obsessing about the design. It seems to work pretty well so far. But I'd like to eventually use more robust material like aluminum. Then have a more funnel shaped set of velocity stacks running up into an enclosed air chamber with a higher quality set of air filters.
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Re: Speeduino efi 1981 gl1100

#33

Post by socrace »

Thanks for sharing your project, always fun to follow along.
Had an 01 Buell that used alpha-n maps (one of Harley's first efi bikes) . It ran real well but tps had to be adjusted with special factory software every few months or so, ran like crap when out of adj. I know irishcarbomb used blended alpha-sd on his efi goldwing, but I just wanted to avoid using it on mine. Did have to experiment alot to get it running right. I'm using the same MAP index for fuel as the table above uses for spark. You can see how bunched up it is, everything happens in the top 20% of the scale, this is how it has to be to use sd on the goldwing.
Never tried ms droid, but looks interesting being open source. Am using shadow dash on the phone, but burning memory has to be done with tuner studio on the laptop, both private market software of course.
I took the easy way out and used stock goldwing throttle bodies on mine, but will try some bigger ones someday!
1981 Goldwing Standard - efi'd, other stuff
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Re: Speeduino efi 1981 gl1100

#34

Post by Mojogameplay »

Right on. So today I set up my maps matching socraces ignition map. Except that my maps are 16x16. I had to drop the 18° block of timing for 15° to get the bike started and idling. Otherwise having the maps start at 50 kpa and have more detail in the usable portion of the maps, was a pretty big success. I went for a 200 km ride. 150km was hail and rain so my engine should be well steam decarbonized inside by now. The rpm signal cut out a few times along the ride. I may need more EMI shielding on the cam sensor. Otherwise the bike ran great for breathing mostly water vapor during the ride. Also I had a decent amount of fuel left at the end of the ride so the fuel economy is at least on par with a well tuned set of carburetors. I was hoping to set the fuel economy fairly lean and then judge by coolant temperature if I should go with more or less fuel. But I was running through too much rain and hail to judge if I was running too rich or if the rain and hail was cooling off the bike as much as it was making my hands go numb.
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Re: Speeduino efi 1981 gl1100

#35

Post by ericheath »

Nice! Hail in Saskatchewan can turn deadly, eh?
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77 WING, 1200 engine with 77 heads, cams, gl1100 foot pegs, Magna V65 front end, 764A carbs, [-gone Suzuki M109 monoshock--, replaced with gl1100 shocks] gl 1200 swing arm, gl1500 final drive, wheel and rear brakes Valkyrie seat, Meanstreak tank, Sportster pipes, Power Arc ignition off crank.
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Re: Speeduino efi 1981 gl1100

#36

Post by Mojogameplay »

Yes. This time around the hail was only mixed up in the rain as a light sand blasting. A bit painful with the half helmet. But not so bad. At least the frozen rain drops bounce off and don't get you soaked. Anyhow. I really need to sort out the iacv on this bike. Cold starts are pretty brutal right now.
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Re: Speeduino efi 1981 gl1100

#37

Post by ericheath »

I went through what looked like a little cloud burst that I could blast right past a few raindrops. Suddenly turned to pea sized hail. I pulled over thinking it could get worse, and it could turn to slippery roads. After dismounting and not wearing gloves my fingers and hands throbbed with pain. I finally figured the hail was pelting them as I came to a stop.
Whatever I suggest here should be given ample time for a moderator to delicately correct. I apologize in advance.
77 WING, 1200 engine with 77 heads, cams, gl1100 foot pegs, Magna V65 front end, 764A carbs, [-gone Suzuki M109 monoshock--, replaced with gl1100 shocks] gl 1200 swing arm, gl1500 final drive, wheel and rear brakes Valkyrie seat, Meanstreak tank, Sportster pipes, Power Arc ignition off crank.
77 Wing. black
83 Wing, in pieces
"Continuing education is important even if the subject matter is fairly useless (as in this case)."---Greg Foresi
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Re: Speeduino efi 1981 gl1100

#38

Post by Mojogameplay »

Intake tubes on right side broke and started backfiring. I'm starting to get set up for sand casting aluminum. I'd like to have intakes again before the cold winter months. More likely I'll be pattern making as a winter project. I'd like to make a different air filter housing and hidden velocity stacks. If I get any decent results with sand casting I'll likely go with different accessories. I'm really not fond of the plastic indicator light housing, it's pretty cracked up.
1. Intake tubes
2. Air boxes
3. Indicator housing
Maybe even custom valve and timing belt covers eventually.
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Re: Speeduino efi 1981 gl1100

#39

Post by Mojogameplay »

Casting refractory cement into a bucket to make an aluminum melting foundry. And learning how to wire 220 volt to test out the heat source for the bottom of the foundry.
Need to let the cement cure another day or two. Then install the burner, add a lid and start melting aluminum.
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Re: Speeduino efi 1981 gl1100

#40

Post by Rat »

You used to just make my head ache .... now you're making me tired too ....

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Re: Speeduino efi 1981 gl1100

#41

Post by Mojogameplay »

I suppose I could simplify things and weld something up out of steel. But I don't need much excuse to build some new tools and try something different. I've been wanting to try sand casting for a while, just needed the right reason.

As far is this topic goes I could say it's closed for now. I've accomplished what I set out after. The bike has been run off fuel injection. With the replacement of a few prototype parts, with more solid permanent stuff, this part of the project will be complete. Maybe I'll start a new topic when I make progress on casting the aluminum intakes, and other parts.
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Re: Speeduino efi 1981 gl1100

#42

Post by Track T 2411 »

Mojogameplay wrote:I suppose I could simplify things and weld something up out of steel. But I don't need much excuse to build some new tools and try something different. I've been wanting to try sand casting for a while... Maybe I'll start a new topic when I make progress on casting the aluminum intakes, and other parts.
I would certainly be interested in this! Yes, please!
"I have no special talent. I am only passionately curious." - Albert Einstein

"He that is good with a hammer tends to think everything is a nail" - Abraham Maslow

"If you can't take the time to do it right the first time, how are you ever going to find the time to do it over?" -Unknown

Current Rides:
'Grumpy' - '81 Standard, now fully dressed.
'Layla' - '81 Standard w/dealer installed fairing and Hondaline bags.
'Scarlett' '76 'Survivor' nekkid as a j-bird!

Under Construction:
The 'Jalopy' '78-'79 Mash-up
'Quikie' '81 gl1100I back on the lift, project with the step-son!

In The Shed:
'81 gl1100I barn find aka "Josie, the farmer's daughter." (almost comatose build)
'77 gl1000, roller parts bike.
'82 gl1100I, 'Old Crusty' titled roller parts bike (free!)
'82 gl1100I, My first 'Wing, and an expensive lesson!
New2U Bike? Read Me.
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Re: Speeduino efi 1981 gl1100

#43

Post by Mojogameplay »

I dont know if anyone is still reading this. But I spent the winter learning 3d printing, 3d modelling, and lost PLA casting. this is where I'm at with the castings. None of them turned out perfect. But they are better than the broken plastic intakes. I have to finish rebuilding the throttle linkages and will setup new air filter mounts of some sort. As far as the casting goes, I'm pretty happy with it. I'm still going to tap some vacuum ports for balancing the throttle bodies. You can see in the pictures there are flat round faces to tap for the vacuum port screws.
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Re: Speeduino efi 1981 gl1100

#44

Post by Track T 2411 »

Very cool!
"I have no special talent. I am only passionately curious." - Albert Einstein

"He that is good with a hammer tends to think everything is a nail" - Abraham Maslow

"If you can't take the time to do it right the first time, how are you ever going to find the time to do it over?" -Unknown

Current Rides:
'Grumpy' - '81 Standard, now fully dressed.
'Layla' - '81 Standard w/dealer installed fairing and Hondaline bags.
'Scarlett' '76 'Survivor' nekkid as a j-bird!

Under Construction:
The 'Jalopy' '78-'79 Mash-up
'Quikie' '81 gl1100I back on the lift, project with the step-son!

In The Shed:
'81 gl1100I barn find aka "Josie, the farmer's daughter." (almost comatose build)
'77 gl1000, roller parts bike.
'82 gl1100I, 'Old Crusty' titled roller parts bike (free!)
'82 gl1100I, My first 'Wing, and an expensive lesson!
New2U Bike? Read Me.
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Rednaxs60
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Re: Speeduino efi 1981 gl1100

#45

Post by Rednaxs60 »

Very cool!! Have to keep busy during the long winters out east.

Yes there are a few of us following. I'm not as far ahead as you are. Intend to do an ECU upgrade/replacement on my '85 LTD FI model, have settled on the Speeduino as well. Need to read your thread again to reacquaint myself with your build. Mine is here at: viewtopic.php?f=47&t=67329

The Speeduino and getting to know it is quite challenging.

Cheers
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1995 GL1500 SE CDN Edition (sold)
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Ontario 1985 GL1200 Limited Edition (sold)
2008 GL1800 (sold)
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