GSX-R1000 fuel gauge installation?

[Big Dog]

Love you FJ! xox



Didn't know you were still on here!

Sometimes I am here but not always on. Someone's I am on but not always here.



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[Dave-]

The 04 gsxr's were fuel injected amirite? This is easy then.

You need to measure a few characteristics of your injectors, primarily their flow rate, but also their dead time.

You can splice into the injector signal wires and measure the duty cycle of the injectors at a given time, you'll also need to know fuel temperature, ideally at the injector but somewhere in line will suffice. You can take this knowledge and convert it into a fuel mass, subtracting the known consumed fuel mass from the known amount in the tank gives you the remaining fuel.

There's a few other methods you can use, Redbull F1 have a few ideas, some of the suggestions here seem far too logical and simple to me. You're dealing with a highly non linear system, I suggest you make your solution more complex to compensate.

[F5 Dave]

No no, you just need to know the weight of the bike full vs empty. Then write a phone app combining the GPS data with respect to acceleration performance and accounting for the krolisis effect should be quite accurate to the nearest zwindit.

[AllanB]

Fucks sake. Fill tank. Ride bike until low fuel light comes on. note kms and riding you have done. Remember for next time.

[Kittyhawk]

Fucks sake. Fill tank. Ride bike until low fuel light comes on. note kms and riding you have done. Remember for next time.

Dont work like that with one brain cell sorry.

[EJK]

Here is an outside of the box thinking...

Buy a bike with a fuel gauge. Problem solved, I'm a fucking genius!






You're welcome.

[Kittyhawk]

Here is an outside of the box thinking...

Buy a bike with a fuel gauge. Problem solved, I'm a fucking genius!






You're welcome.

Nope! No cock = complicated methods to solve simple problems!

[Big Dog]

You could always make a custom tank that was either see through or had a transparent panel.

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[Big Dog]

Nope! No cock = complicated methods to solve simple problems!

Yep, that is your problem a lack of float Cock. Google brings lots of inages but won't let me save or link them.
https://encrypted-tbn0.gstatic.com/i...Ragd5qKo0-Uwyu
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[imdying]

The 04 gsxr's were fuel injected amirite? This is easy then.

You need to measure a few characteristics of your injectors, primarily their flow rate, but also their dead time.

You can splice into the injector signal wires and measure the duty cycle of the injectors at a given time, you'll also need to know fuel temperature, ideally at the injector but somewhere in line will suffice. You can take this knowledge and convert it into a fuel mass, subtracting the known consumed fuel mass from the known amount in the tank gives you the remaining fuel.

There's a few other methods you can use, Redbull F1 have a few ideas, some of the suggestions here seem far too logical and simple to me. You're dealing with a highly non linear system, I suggest you make your solution more complex to compensate.

This is the easiest way, IMO.

TeeRiver on the svrider.com forum produces these for Suzukis (he intercepts the serial comms between the ECU and dash IIRC), and his customers report they're errily accurate.

[Dave-]

This is the easiest way, IMO.

TeeRiver on the svrider.com forum produces these for Suzukis (he intercepts the serial comms between the ECU and dash IIRC), and his customers report they're errily accurate.

I thought about mounting the fuel tank via load cells or perhaps strain gauges then take a rolling average of the deflection created by the fuel mass.

The temperature compensation on strain gauges can be tricky though, especially above an engine, which is why I think my first idea is better.