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Discussion starter · #103 ·
Hello :)

Finally :) I got some new toys for my ZX7R.

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With all new AN6 fittings, I will be able to finish my fuel system. After mounting fuel pump and fuel pressure regulator, there's no much place left, that's why I decided to use "shaped" 90deg fittings.

Shift light will easily fit to stock gauges. Quite usefull when you got not time to watch tachometer :)

And most important thing - TRIGGER WHEEL.

We've cut out old 3 (odd teeth) trigger wheel from stock bracket. Completly new 12-1 wheel was machined. I will weld them together to make sure that stock bracket perfectly fits to crank.

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Hopefully I will find some time on begining of March to throw these parts in ZX7R, and test fuel and triggering system.

Keep your fingers crossed.


BR

Kuba
 
Discussion starter · #107 ·
Be sure that You will take a really important part of all tuning process. Hahaha I will prepare "Late Night Prototype Tuning Crew" ID card. There was "Wkurwiony Bocian" now we will prepare "Wkurwiony Kermit" :D

BR

Kuba
 
Discussion starter · #110 ·
Hello Klaus.

I've started to write part related to Triggerig. :) I'm taking a week of holidays next week to work a bit with my ZX7R, so I think that I will be able to post it next week. It's very complex topic :)
be sure that I will post something next week :)

BR

Kuba
 
you are welcome:)

Reason for my request was this 12-1 thing. I think that means 12 teeth at the circumference -1 which is used to mark TDC.

Construction is:
Mark 24 points at the circumference. Make line from the marks to the center. Measure the height of a tooth from the outside ( You can compare the diameter and height of the teeth with the original one ). Make a circle with the radius from the center to the lowest point of measured tooth. Now you have 12 teeth and also 12 spaces with the same size.

Now you can remove the peaces between the teeth and one tooth. Done!

Are there other sizes numbers ( eg 12-2 ) usual and which are the benefits of each solution?


That means you could say the crankshaft turns 30 degree from one tooth to the next.
To keep it simple: 12*30=360 => Full turn of the crankshaft. You get the idea...
It`s not totally true because of the missing tooth which is needed to mark TDC. But i want to keep it simple.

It`s enough that you know the numbers ( 12-1 ) which needs to be programmed in to the FI system

@Bad One: Do you want to go deeper in that part for the interested although it`s not really necessary because math is done by the ignitor ?

It`s important that the ignitor knows where TDC is because of ignition timing and fuel injection.

And this might be a good point for a short side step in how a 4 stroke engine works because we have to decide if we need one more sensor which shows us which cylinder is at TDC....

I stop at this point because i don`t want to destroy the work which has be done by BadOne at this topic!
 
Discussion starter · #113 ·
Hello

Fuel system ready and tested, wiring work done :p

Crank pickup is working properly - it's reading crank speed.

Tommorow I will try to start it :)

BR

Kuba
 
Discussion starter · #116 ·
I've had some small problems with crank sensor polarisation. Now it seems to be ok.
Honestly I've tried to start it few minutes ago... but i've set too high "cranking injection time" and i've flood my spark plugs.


BR

Kuba
 
Discussion starter · #119 ·
That seems to be a small issue. But it sounds as if you have no new spark plugs available?

Why did`nt you start from the shorter injection time side. Where you afraid to get too much heat?

it wasn't matter of heat.
I've prepared base maps from zero, 8,2ms of injection time during cranking was just too much (at 12deg C ambient temp)
preparing map from zero is always a game :)

BR

Kuba
 
Hope it works out. 4 months is a lot of work to avoid a carb rebuild and synch.
This guy gets it... :blue headscrtch: :wait: :shrug:

I'm waiting for my ultrasonic to get here... :evil:
 
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