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Author Topic: Microsquirt  (Read 8616 times)
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Tobisen
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« Reply #140 on: April 04, 2008, 08:56:49 AM »

I am still a newbee here with the MS, and it seems like no one here in Denmark is using MS on a bike with boost!
So I am happy to recive all the online help I can get:)

OzBooster, Is it so, that you got a msq for the bike you made I can try out?

Last year I was running 190kpa boost, and I have not changed that, but I am aming for 210kpa!
My compression should be set up for it with 8:1
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OzBooster
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« Reply #141 on: April 04, 2008, 05:46:30 PM »

Microtech works on milliseconds/rev , i can get a copy of the tables  and the setup parameters if you can figure out a conversion to suit the MS .


just put cbr1100xx injectors in as a 1/2 way step and looks like it will idle ok now, adjusting the fuel by a total trim that will not affect the table i send ,as it was based on the 240cc injectors and trimmed at 0.
it will take me a day or so to get the info.the bike is 50miles from me . microtech tables are not savable files ,can only do screenshots of the programme and the mt4 on the bike is not laptop compatable, but i have another that is and can load it from he handcontroller first.
   
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Chris Horoho
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« Reply #142 on: April 04, 2008, 05:58:47 PM »

Microtech works on milliseconds/rev , i can get a copy of the tables  and the setup parameters if you can figure out a conversion to suit the MS .


just put cbr1100xx injectors in as a 1/2 way step and looks like it will idle ok now, adjusting the fuel by a total trim that will not affect the table i send ,as it was based on the 240cc injectors and trimmed at 0.
it will take me a day or so to get the info.the bike is 50miles from me . microtech tables are not savable files ,can only do screenshots of the programme and the mt4 on the bike is not laptop compatable, but i have another that is and can load it from he handcontroller first.
   
sounds like you need to convert too Wink
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OzBooster
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« Reply #143 on: April 04, 2008, 10:36:13 PM »

I'll let you guys work out the difficult stuff first   Wink
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Tobisen
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« Reply #144 on: April 05, 2008, 08:39:30 AM »

I am not the expert here, but as I se it, the fuel tables are depending on all the other fuelsettings!
I don´t think it is possible to convert them from one system to another.... Huh?

But the Ignition table, would be nice to have!
The engines are the same, so I should be able to use the one you got working ok, to adjust from!
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OzBooster
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« Reply #145 on: April 05, 2008, 05:35:08 PM »

We are using a fuel only microtech ,triggered by the factory ign pulse, all timing is std ,
Found out yesterday the bike is at 22psi in the high gears ,
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Tobisen
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« Reply #146 on: April 07, 2008, 02:56:31 AM »

22psi that is 1.5bar! That must give around 350hp?
What is the compression?
Is the engine stock?
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OzBooster
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« Reply #147 on: April 07, 2008, 04:19:25 AM »

i figured 260-300, no dyno just logging for tune, going to get the 3 bar microtech and turn it up more yet.
1mm spacer and 1 base gasket,hpc costed pistons,mild port job,std cams at 110.
just replaced the gears as the old ones were getting noisy, put a 600 gearbox in, gears are closer together , busa headstuds with 18mm spacers (washers) to make up the difference in needed length  .
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Tobisen
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« Reply #148 on: April 07, 2008, 07:49:12 AM »

I have read in a Swedish forum, that a american guy on he´s 750 with a McXpress kit with a lager turbo have made 330hp at 1.4bar on a stock engine, only with lower comp.
I´m aiming for 250hp and an engine that will not brakedown...
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OzBooster
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« Reply #149 on: April 07, 2008, 08:08:29 AM »

i'm just guessing 22 psi will be ~a low std hp of 110-120 (decompressed) plus 1.5x that figure, probably getting less efficant now and gaining less hp/psi.

330hp at 20 psi seems a little high , but will read relatively good compared to a busa because of the higher rev range.

Had clutch problems several months ago, now has a late coil spring clutch and custom lockup.
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Tobisen
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« Reply #150 on: April 07, 2008, 02:51:49 PM »

When I messure with the scope from pin 23 to ground with engine running, I messure spikes of voltagedrops on a few ms!
I have had the pinconnector out to solder, and the other end is also soldered and connectet directly to batteryground!
It looks like a bad wire to me, but the Microsquirt and the wirehairness is brand new!
I have made a print from the scope:

One other strage thing, when I messuer the amps with the scope for the coils, it only use 2! I have tryed to change the dwell from 3 to 4ms but still only 2 amps! 'the coils are stock 3ohms.
On a normal car, I would say the use 6amps to charge!

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Tobisen
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« Reply #151 on: April 07, 2008, 02:59:10 PM »

Maybe this is connected to this:
I can only get the engine to rew 7000rpm, then it backfires from the exhaust LOUD thumbs  up with 1/2 meter flames!
Is is like it looses the ignition, I can see that with the timinglight!
Is it because the coils not are charged?
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Matt Cramer
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« Reply #152 on: April 10, 2008, 02:56:32 PM »

Two things. One, check the wire's resistance on that pin. Two, see if you can capture the breakup at 7000 RPM with a data log - maybe with a Palm handheld if a laptop's not too practical.
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Tobisen
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« Reply #153 on: April 28, 2008, 03:37:55 AM »

Hey guys!
It has been a while since I have last posted on my project!

I only got the bike out from the dyno for a short testdrive, just to find out the new clutch was slipping Angry
After fixing the problem and a short testdrive, my wife called...
I was about to become a father Smiley
So for the last week I have been walking around the nabourhood proud with my son in he´s cart thumbs  up

Yesterday I had the bike out for a spin, I can see it still needs some tuning!
Where do you guys have your AFR?
I have mine around 12!
I ended up with running the bike in SD mode, I try ed the AlphaN-blend, but I gave up!
So fare I have not added any acceleration enrichmend yet, I think I will need it!?

Can anyone give me an explanation why, when I run in fx. 6.gear and I have 150kpa(0.5bar boost) and I open the throttle full it is like it have no effect!
The AFR is still the same, around 12!
With my old carburetors, the bike would have been pulling strong!
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sportbikeryder
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« Reply #154 on: April 28, 2008, 07:50:23 AM »

Congrats on teh new Kid! thumbs  up I just took delivery of a new female model on April 2nd.


Perhaps you need to add some acceleration enrichment to get the turbo to spool under high load. You will experience a VERY lean spot when you crack the throttle without dumping in some additional fuel.
John

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Tobisen
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« Reply #155 on: April 28, 2008, 01:57:36 PM »

Congrats to you to thumbs  up

The funny thing about it is, I can see on my AFR gauge that the AFR is stabile at around 12, even when I open up full throttle!
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Matt Cramer
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« Reply #156 on: April 28, 2008, 04:22:04 PM »

You may need to sling a courier bag over your shoulder with a laptop in it and try making a data log. 12:1 is a good AFR to aim at for most of the time under boost.
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Tobisen
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« Reply #157 on: April 29, 2008, 11:02:05 AM »

It is raining today Cry
I will try to make a datalog, when the roads are dry again!
I was thinking, the throttleboddyes I am using are from the K1 GSXR1000 with the upper throttles remowed.
When I open up the throttle full, the air speed drops drastic in the inlet!
On my old carbs, the vacumslider was at the same point almost closed to make a venturi and speed up the airstream in through the carbs and inlet!

I think the problem is, the engine gets to Much air and the reason why the Afr is perfect is because the Microsquirt is mapped so it just put more fuel in at that point.

Am I right? And how can this be problem be solved?
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