Speeduino installation

jonbills

Membership Secretary
Site Administrator
This is great Jon! A few years back I was messing with raspberry pi’s to develop some accelerometer based telemetry for my motorbike. Really fun project. Software and hardware (electronics) are much more my comfort zone than cars! Very interested to see how this develops.
Thanks. It is a lot of fun. From the activity on the forum, there's hundreds of them running successfully around the world on all sorts of engines. 2 stroke, 4 stroke, 1,2,3,4,5,6,8 even 12 cylinders.
So very confident it will work well and I'll have fun and learn lots.
 

jonbills

Membership Secretary
Site Administrator
Today I wired my WBO2 into the Speeduino and I've approximately calibrated it in TunerStudio.
The sensor is knackered so only shows a reading when it feels like it - I think this is the spur I need to buy a new one :)
Next weekend, onto the IAT and CLT sensors. After that it's the wiring for the injectors and then I'll have no excuse and have to get on and fit the ITBs!

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jonbills

Membership Secretary
Site Administrator
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I've put the CLT and IAT sensors in and plugs and run the wires. I didn't wire them into the Speeduino, I'll do it all together with the injector wiring next weekend.
 

jonbills

Membership Secretary
Site Administrator
Today I wired the two temp sensors into the Speeduino and wired the injector trigger wiring into the Speeduino too.
Running the engine in the garage, the responses of the sensors seems reasonable so it seems I've done them OK.

I think that is all the basic sensors and output signals connected for now, only other things I can add are fuel pump control and launch control.

Next up, plugs at the injector end and test that the injector wiring all works.

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jonbills

Membership Secretary
Site Administrator
This weekend I calibrated the temp sensors and trial fitted the ITBs.
The carb rod linkage won't work with the ITBs for a bunch of reasons, so I've ordered the parts to make a new linkage bar and arms - hopefully they'll arrive in time for next weekend.
I Also put just one injector plug on, added an injector and cranked it over and good news, the injector was vibrating which means at least 1/3 of the injection circuit is working which is a relief. Next weekend I'll confirm the other 2 injector channels and if I get really good I might even run some fuel to them.
 

jonbills

Membership Secretary
Site Administrator
Injector plugs on.

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I suppose the todo list is:
Flow test injectors, pick best matched 6
Make linkage bar
Get/fit injector power distribution
Fit Swirl pot
Adjust fuel pressure
Fire it up
Map it
Done.
 

jonbills

Membership Secretary
Site Administrator
Today I flow tested my injectors and picked a matched 6, adjusted the FPR to a bit over 40psi
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and finished up wiring up relays and fuse box for everything on my engine bay "shelf". All I need to do now is wire the injectors +ve wires to power distribution, add fuses and turn it on.

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tyroguru

Club Member
Definitely need more options then “like” on the forum [emoji3] . Brilliant!


Sent from my iPhone using Tapatalk
 

jonbills

Membership Secretary
Site Administrator
But it ran before with carbs on.;)

Jon, it will be interesting to hear your feedback on the improvement with just the ignition upgrade and then ign and TBs.
Yeah it did run rather well on carbs. Only place it wasn't great on carbs was 2500 to 4000 rpm on more than 30% throttle where it was always very rich. So that's where I'm hoping for gains with injection.
But that's a long way off, I've barely got warm idle working so far!
 

AliK

Vehicle Dating Officer
Staff member
Club Member
Nice work there JB!!! That’s a lot of great effort / love right there. [emoji106][emoji106]

I know the phone doesn’t do it justice but that sound !!!! Love it.

Would be interesting to see how she flies under load and the difference compared with your old setup.
 
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