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Porks bike carbs and boost project

Il get both :)

The iac outputs (that's what it's called in book)
Can be used for other things too, iac1 is preferred for rev counter......apparently

Jus going on what I've read/been told :)
 
frank said:
mains electric is 50htz aint it andy ?
Click to expand...
AC is sinusoidal, 50hz refers to how many complete oscillations occur per second. Every 10ms the power switches on and off :)

LED's are fast response as I recall as they have no filament,
 
Enuo said:
Well it'll be a digital signal, so just like you did with the shift light, run the signal to a mosfet transistor and have it switch a 12v feed from the lighter socket circuit?
Click to expand...

So like this?

eve9eru5.jpg
 
Of course, you could take it apart and rip out the diode, the switch doesn't have to work so don't worry about being heavy handed, as long as the coil stays intact it should be fine :)
 
That's what mines like?
Or does the tach wire have to be soldered to the transistor, not spurred from the - side of coil?
 
You have tach wired between coil and transistor, should be tach directly connected to transistor base wire and a 12v feed one side of the coil and the base wire on transistor the other side of coil :)
 
Yeah no you're right, didn't read your post properly and looked like they were seperate on the coil not linked. Not having a + feed in your pic did it I reckon. But yeah it'll do. What voltage is the transistor rated at?
 
Got the one that was in the diagram

Either way, don't think the output is working.
You can use it for other things, so tried that and didn't work.

Supplier gunna check a few things, but maybe a case of return and replace the eci
 
I didn't think the output from ecu was working

Then thought might not be strong enough

Tried amplifying it

Didn't work

Tried other things

Must be broke lol
 
It works!!

Bloke at redline found out problem..........the book had the outputs round the wrong way!

So I now have my rev counter working and control over the bypass back :)

........went for a drive....,I shouldn't coz the maps all over the place......but it's catapults you straight away!

Cruising in 3rd at 20, put foot down and instant power! :D

No more being a **** now, until it's mapped lol

Or I might jus try copy some superturbo type maps from the net ;) anyone got spare engine just incase.
 
Happy the ecu ain't at fault :)


One thing that's puzzling me is my idle/supercharger bypass valve configuration.

I would of thought that when I rev the engine with s/c engaged, the manifold pressure would be positive, closing the vacuum operated valve, but it don't, unless it's above 1700 rpm. Until then, all the boost it creates comes out off the bypass valve here.......

e9urave7.jpg


Suggestions?
 
The vacuum feed to the actuator needs to be engine side of the tb, that way when the butterfly is closed the boost is blocked off and a vacuum forms and pulls open the bypass valve. Then, when you open the throttle again, the vacuum drops and the valve closes again, stopping the boost venting
(At least thats my understanding of it)
 
Is the valve supposed to be spring loaded? If the spring had gone soft, was damaged or missing then it would need positive pressure to close where the spring would close it before?
 
Il try do video tomorow.
It goes-
Open on idle

Rev and feel all boost coming out off valve(quite a force too!)

Rev till over 1700 then it closes
 
yours has the added complication of super-turbo eh neil, so i dont think your kpa table will mirror a typical load table
you might need a table that has supercharger and turbocharger figures blended together ?
 
I was trying to find somthing on google....but didn't come across much info really
I guess people don't wanna share what they have spent loads if money on
 
Hi. The modification you are making with the tc and sc is the same as putting MA09ERT engine from a march(changing name does not make diference. It's always micra), see on this link=http://minkara.carview.co.jp/image.aspx?src=http://cdn.mkimg.carview.co.jp/carlife/images/UserCarNote/75311/p1.jpg?ct=745cc8fc6d9b, i think it will help you, and if you see on the photo, sc is always running.
and i have de control panel that had the clock and i take them to put a rpm tachometer in is place wen i have the photos i put them here for you to see it.
 
Last edited:
I think I might have to move my throttle body to before the supercharger

with the belt super tight, it squeals, at idle it's ok(bypass open),
But then blip the throttle and it slips the belt
think the build up of pressure is stalling/slowing the blower compared to the crank rpm, skipping the belt

If I rev it standing still and then off throttle, the force if the air that comes out off the bypass valve is crazy! Il have to put a pressure gauge before the throttle to see

Anyone got any thoughts on this?

Wanna get everything right(ish) before mappikg
 

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