Throttle body injection on GL 1000

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Don_Karlos
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Throttle body injection on GL 1000

#1

Post by Don_Karlos »

Hi,
you probably followed my 32/36 attempt. Since there is still some time and space left in my live and my garage I started thinking about a throttle body injection on my other GL 1000 (it's already apart because of a Weber IDF conversion with Randakks Manifolds :-) but this is another story). I had some GSXR 1000 Throttle bodies on the shelf and took them apart. I reworked the spacing between the individual Bodies and test fitted the on the bike. As you can see in the pictueres it is a pretty good fit. I will go with a BMW R100 Gas cable (they have a splitter and two ends) and connect the two sides only via cable. I think the main challenge will be the power consumption. The GL 1000 Generator is not too strong and I'll check out if it delivers enough for all system and the EFI.
I'll keep you updated!
Karl
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EFI GL1000.JPG
EFI GL1000.JPG (42.81 KiB) Viewed 2403 times
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salukispeed
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Re: Throttle body injection on GL 1000

#2

Post by salukispeed »

Very nice looking set up. Would you have room for a poorboy alternator? I also saw an alternator from a japanese tractor diesel ( kubota? ) that worked just like the alternator on our wings but with a belt driven perminant magnet rotor and stator. It was about 1/2 the size of the denso used in the poorboy but was only 18 amps. I wonder if it could be used to supliment your need for more amps for the EFI.
Honda 72 CL100 sold
74 CB750 K4 nice driver
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SloMo228
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Re: Throttle body injection on GL 1000

#3

Post by SloMo228 »

I'm going to be doing an EFI conversion come next winter, and the power consumption has me concerned, as well. I'm hoping that there will be enough extra capacity after I finish swapping all lights for LEDs and upgrade the regulator/rectifier to a more efficient modern unit. LED headlights are available now and save 2-4 amps by themselves!
Steve

1978 GL1000 - Gallery
1993 GL1500 SE - frame-up restoration in progress
1983 CX650C
Don_Karlos
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Re: Throttle body injection on GL 1000

#4

Post by Don_Karlos »

Hi,
quick update. In the first pictures you see the BMW Throttle Cable. The others are showing the setup in the bike. I used Throttle Bodys from two Suzukis so that I have two Throttle Cable holders and Idle Adjusters! It's a snug fit, but works good.
Next will be the Injector holders and the Fuelrail.
Karl
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IMG_0994.JPG
IMG_0994.JPG (74.51 KiB) Viewed 2370 times
IMG_0995.JPG
IMG_0995.JPG (73.25 KiB) Viewed 2370 times
IMG_0996.JPG
IMG_0996.JPG (61.87 KiB) Viewed 2370 times
IMG_0997.JPG
IMG_0997.JPG (68.7 KiB) Viewed 2370 times
IMG_0998.JPG
IMG_0998.JPG (50.91 KiB) Viewed 2370 times
CBX 1000 CB1 red
CBX 1000 CB1 black
GL 1000 Ltd
GL 1000 K3
BMW R100S
Z1300
HD Streetbob 2009
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Re: Throttle body injection on GL 1000

#5

Post by fish »

DK you gotta make that work!!
thank you for making a thread action1
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Re: Throttle body injection on GL 1000

#6

Post by Hegel »

looks outstanding... any idea on what you are going to control it with?
2011 Triumph Rocket 3 Roadster (Totalled)
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Re: Throttle body injection on GL 1000

#7

Post by sunnbobb »

Good read. liking this alot.
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1978 Learning Experience
1980 County Road Hauler "Brain Damage"
1978 Cafe Custom Gl1000 "Vyper"
1977 Bulldog Inspired "Vaincre"
1981 Street Fighter GL1100 "No Quarter"
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lcallison
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Re: Throttle body injection on GL 1000

#8

Post by lcallison »

Yes, watching this one closely. I would love to convert my 76 and 82 to efi.
Larry
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Don_Karlos
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Re: Throttle body injection on GL 1000

#9

Post by Don_Karlos »

Hi,
thanks for the positive feedback! I'm planing to use a UMC 1 from Germany (www.no-limits-motorsport.de/index.html). It's basically a Megasquirt MS-II but way smaller and with less parts. Since it is smaller it'll fit better in the bike. The rest is the same as with the MS-II. Power consumption is my main concern. Since in Germany the regulations for Street Legality are very hard it is not possible to switch to Xenon or even LED Lights (which would reduce power consumption significantly). So I have to go another route and will improve the charging system by using a CBR600RR Rectifier/Regulator. Maybe a LiIon Battery. We will see. I also thought about a new Generator between the two Throttle body banks with a belt drive comparable to the poor boy solution but invisible under the false Tank :-) But for now the EFI is work enough!
Tomorrow is german Labour day and I'll stop the work on the project for a few days and pull the Grill out of the Garage!
Karl
CBX 1000 CB1 red
CBX 1000 CB1 black
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taunusrainer
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Re: Throttle body injection on GL 1000

#10

Post by taunusrainer »

Karl, this looks great!
Actually I also wanted to go the GSXR tbi way before I had to stop everything.
Did a lot of tests with poor results, nothing worked out the way I wanted.
I think the key for success is that You have freshly tested injectors with a known accurate flow rate.
NAPA shops do that for a small money, but there are only a few Bosch services here in Germany who are willing and able to do it.
I will continue as soon as all my family and health circumstances have improved and I have time to concentrate on this subject again.
Great to see You going forward!
Phone me anytime, You got my number!
CU
Ray
socrace
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Re: Throttle body injection on GL 1000

#11

Post by socrace »

Nice start with those throttle bodies. Concerning electrical needs, you'll find that efi (at low rpm) uses about 80 watts, mainly needed to run a car type efi fuel pump. A motorcyle/4runner type fuel pump will use about half that but is costly ($250+). At high rpm, total power need rises by another 40 watts or so to power the injectors. The stock goldwing puts out enough power to handle this; it's about the same power as adding driving/running lights.
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SloMo228
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Re: Throttle body injection on GL 1000

#12

Post by SloMo228 »

socrace wrote:Nice start with those throttle bodies. Concerning electrical needs, you'll find that efi (at low rpm) uses about 80 watts, mainly needed to run a car type efi fuel pump. A motorcyle/4runner type fuel pump will use about half that but is costly ($250+). At high rpm, total power need rises by another 40 watts or so to power the injectors. The stock goldwing puts out enough power to handle this; it's about the same power as adding driving/running lights.
Nice to know!
Steve

1978 GL1000 - Gallery
1993 GL1500 SE - frame-up restoration in progress
1983 CX650C
Don_Karlos
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Re: Throttle body injection on GL 1000

#13

Post by Don_Karlos »

Hi,
I worked on the injector holder. Let's see if it works when it comes out of the CNC-Mill :-)
Karl
Attachments
Injectorhalter.SLDPRT-page-001.jpg
Injectorhalter.SLDPRT-page-001.jpg (15.79 KiB) Viewed 2279 times
CBX 1000 CB1 red
CBX 1000 CB1 black
GL 1000 Ltd
GL 1000 K3
BMW R100S
Z1300
HD Streetbob 2009
Simson S51N
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Hegel
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Re: Throttle body injection on GL 1000

#14

Post by Hegel »

you may just have a market for this when it's completed.
2011 Triumph Rocket 3 Roadster (Totalled)
2008 Triumph Rocket 3 Standard.
1977 gl1000 cafe project for my brother
1993 xr250l 280 kit
1968 Husqvarna 250t Commando (Needs a lot of work. been sitting outside since 1971)
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jake2012
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Re: Throttle body injection on GL 1000

#15

Post by jake2012 »

Nice setup! If you need help with the car alternater setup let me know. I refused to pay the $ for a stator replacement so I installed a GM alternator. Good thing I had a parts bike to fab on; it works perfect unlike the poorman setup that doesn't work until 1500 rpms. Not to mension it ugly hangin out there like that. Good luck with you project and keep us up to date. anim-cheers1
Jake's past rides
1973 Suzuki TC 100
1976 Suzuki GT 550
1983 Honda ATC250R
1975 Elsinore 250
1977 custom hawg chopper
1952 Pan Shovel
2x 76 gl1000s
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