Suzuki GSX 1100 Best trigger wheel to use

Discussion and support for MoTeC's new entry level ECUs

Suzuki GSX 1100 Best trigger wheel to use

Postby Screwriverracing on Tue May 05, 2020 8:27 pm

Hi All,
I am hoping to change my current ecu to a M84, but will it run with the existing pickup?
IMAG0487-20200505-102011117.jpg
Suzuki GSX 1100 EFE Pickup
IMAG0487-20200505-102011117.jpg (458.65 KiB) Viewed 2073 times

If not what would be the best to use, taking into account I have limited space.
Cheers SRR.
Screwriverracing
 
Posts: 12
Joined: Tue May 05, 2020 8:30 am

Re: Suzuki GSX 1100 Best trigger wheel to use

Postby SDean on Wed May 06, 2020 9:49 am

Hi,

Is there also a sync (camshaft) sensor on this engine? if the leading or trailing edges are equally spaced and there is a sync sensor then the One tooth Per Firing or Multi Tooth reference modes could be used. I would need to see more information on the trigger before I could give a definitive answer.
Stephen Dean
MoTeC Research Centre Melbourne, Australia
User avatar
SDean
Site Admin
 
Posts: 745
Joined: Tue Dec 02, 2014 9:29 am
Location: Melbourne

Re: Suzuki GSX 1100 Best trigger wheel to use

Postby Screwriverracing on Wed May 06, 2020 10:49 pm

Hi SDean,
Thanks for getting back to me.
There isn't a cam sensor, bike is from 1984 so quite basic.
IMG_1697.JPG
IMG_1697.JPG (309.07 KiB) Viewed 1984 times

I have the following information from the existing ecu manufacturer

"At speeds below 700 RPM the ignition timing is fixed to spark on the rising edge of the tooth that precedes the long tooth(slug) (cyls 1/4) and the tooth that follows the slug (cyls 2/3).
From 700 RPM upwards the ignition timing is adjustable."
I could possible fit a cam sensor, but it will be tricky.
Also the pickup to the left of the first picture is the only one being used, the one to the right is disconnected.
The main problems I have are
1. Bike kicks back when trying to start, sometimes undoing the starter clutch.
2. When warm it is hard to restart.
3. When riding and accelerating the bike will not pull boost unless I turn the choke on.

Cheers SRR
Screwriverracing
 
Posts: 12
Joined: Tue May 05, 2020 8:30 am

Re: Suzuki GSX 1100 Best trigger wheel to use

Postby Sean on Sat May 09, 2020 6:02 pm

Sync sensor on a GSX1100, GT101 reading off a cam lobe. You could use a GSXR sync sensor, but need to check. Some of the GSXR ones have a weird offset signal. What cams do you have in it, generally the aftermarket like Web Cam have fairly pointy lobes.

20200509_111153_1589009178414_resized.jpg
20200509_111153_1589009178414_resized.jpg (93.59 KiB) Viewed 1727 times


I'd run a later GSXR trigger and pickup. They're standard EFE pickups on there now?

gsxr.jpg
gsxr.jpg (10.94 KiB) Viewed 1727 times


This bike isn't mine, but I've done a bit of work on it.

20200509_112354_1589009180552_resized.jpg
20200509_112354_1589009180552_resized.jpg (132.78 KiB) Viewed 1727 times
Sean
 
Posts: 161
Joined: Sun Dec 21, 2008 11:35 am
Location: Adelaide or Auckland

Re: Suzuki GSX 1100 Best trigger wheel to use

Postby Screwriverracing on Sun May 10, 2020 6:03 am

Thanks Sean,
Looks interesting.
Have you any more pics of inside the cam cover?
I'm running standard cams.
I have decided to change the Ignition Rotor to a Kawasaki zzr style,it will fit in the casing and I know the pattern works on a M84.
Also have you got a copy of the map?
I have been looking at the software and would like to have a play with a map to get my head round how it all works.
Cheers SRR
Screwriverracing
 
Posts: 12
Joined: Tue May 05, 2020 8:30 am

Re: Suzuki GSX 1100 Best trigger wheel to use

Postby Screwriverracing on Wed May 13, 2020 6:41 am

Another question,
Can I run the M84 without a cam sensor ?
Cheers SRR
Screwriverracing
 
Posts: 12
Joined: Tue May 05, 2020 8:30 am

Re: Suzuki GSX 1100 Best trigger wheel to use

Postby harky on Thu May 14, 2020 12:47 pm

i fitted a cam sensor on a B1 Gpz1100 Kawasaki , first one was on a cam lobe ( with std cams — very pointy lobe ) worked fine , i used 10,000 Rpm , when i fitted different high profile , long duration cams , the ecu would “ loose “ sync over 5000 rpm , i fitted a sensor on the exhaust cam sprocket , a simple tab the sensor saw , ment some welding and fabrication of the cam cover
photo is upside down , but illustrates where the sensor was fitted
Attachments
A03FCE78-FF6B-48D7-82B0-E522BCD69637.jpeg
A03FCE78-FF6B-48D7-82B0-E522BCD69637.jpeg (86.45 KiB) Viewed 1352 times
harky
 
Posts: 44
Joined: Tue Aug 12, 2008 5:41 pm
Location: adelaide

Re: Suzuki GSX 1100 Best trigger wheel to use

Postby Screwriverracing on Fri May 15, 2020 7:36 am

Hi Hardy,
Thanks for the information,have you any pics of the pick up on the cam sprocket?
Also have you any pics of the Hayabusa cam pick up set up?
Cheers SRR
Screwriverracing
 
Posts: 12
Joined: Tue May 05, 2020 8:30 am

Re: Suzuki GSX 1100 Best trigger wheel to use

Postby Screwriverracing on Fri May 15, 2020 11:43 pm

Screwriverracing wrote:Another question,
Can I run the M84 without a cam sensor ?
Cheers SRR

Please can someone answer my question?
Cheers SRR
Screwriverracing
 
Posts: 12
Joined: Tue May 05, 2020 8:30 am

Re: Suzuki GSX 1100 Best trigger wheel to use

Postby harky on Sat May 16, 2020 1:54 pm

pm me , i will email you photos
having no luck posting any
I think you can use a crank only sensor , but that will limit you to non sequential injection
harky
 
Posts: 44
Joined: Tue Aug 12, 2008 5:41 pm
Location: adelaide

Next

Return to M84 ECUs

Who is online

Users browsing this forum: No registered users and 5 guests