1000cc V-twin base ign & fuel map

[Norzilla]

Hi

I am new to Microsquirt and want to know if anyone has set up ign and fuel maps for a V-twin motorbike motor of 1000cc that would make about 130bhp. I have a 2004 RSV 1000 Factory Aprilia motor

I can not get my engine to start and am looking for some type of comparisons for IGN map and VE map to see if i am too far from the mark. Obviously required fuel calc would also be useful, along with the -40F and 170F pulse widths to get the cranking pulse witdh?

I am wondering if anyone has set the MS up on either a Ducati 916-999 or maybe a Honda SP1 or 2 or Suzuki TL1000 ?

Thanks and regards

John

[gboezio]

Here's mt MSQ from a VTR1000F, the injectors are 750 CC, is uses alpha-N up to 2300, then blend up to 3100, then pure speed density.
So you can't just copy and paste it, I don't think it's possible to run a V-twin with a big cam in pure speed density, if the turbo is big, I'll blend it even further in the rpm range, right before the turbo spools up and mess up the fueling.
I have a reversion problem around 5500 and 6500 rpm so there is a dip on the VE table.
I'm using dual tables, the rear cylinder is 4 % richer than the front.
It loves spark advance, the combustion chambers are pretty open and I'm not sure about my base setting since I got sick of having oil blown in my face, the timing light was dripping.
I run a single 60mm throttle body with a 1.9 liter plenum and a 0.030 restrictor to the MAP sensor so the VE table may be a bit different load wise.
Good luck with your project, I will work on mine this winter and make it better.
Cheers

[Norzilla]

Hi

Thanks for this info... So your VTR is running a turbo?

I can already see a couple of things i want to explore, having looked at your msq.

At the moment i am only using 1 VE table, i have 2 seperate exhaust pipes with the wideband in the rear cylinder pipe only so AFR tuning is based on what the rear cyl is doing, i can already see from the exhaust that the front is running rich when running off the rear VE map and AFR. I think that i will look at the 2 nd VE and lean the front out a bit.

I have not used Alpha-n yet, did you use any particular rule of thumb to set up the map an ranges?

Finally re your Accelenrich map, how did you get to these settings and why is the max %/sec on 75% I thought it would be much greater than this?

Thanks

John

[gboezio]

Hi

Thanks for this info... So your VTR is running a turbo?

Yes a K03, not very powerful yet, but I need to turn up the boost to 8 PSI
The build thread is here
http://superhawkforum.com/forums/showthread.php?t=18880

I can already see a couple of things i want to explore, having looked at your msq.

At the moment i am only using 1 VE table, i have 2 seperate exhaust pipes with the wideband in the rear cylinder pipe only so AFR tuning is based on what the rear cyl is doing, i can already see from the exhaust that the front is running rich when running off the rear VE map and AFR. I think that i will look at the 2 nd VE and lean the front out a bit.



I have not used Alpha-n yet, did you use any particular rule of thumb to set up the map an ranges?

I'm setting the throttle % in a logarithmic fashion, there a huge change in airflow at low % and very little in the last 50 %, my Ve table may seem a little wacked since there is a switchover at 3100 rpm because of the turbo start spooling and will vary what goes trough the TB at a given %
I set the table once throwing numbers in there and it ran so good that I just re tuned the VE table using the logs.
My engine would pull 75 kpa at idle and sometimes up to 80-82 kpa, now the alpha-N will bring the idle to the 50 kpa bins, giving me a resolution of about 5 bins to tune the idle, low load, medium, high and 100 kpa, before this I had 2-3 and most of it was happening in a single bin, since the ECU take MAP as a multiplier, the VE figures were pretty high

Finally re your Accelenrich map, how did you get to these settings and why is the max %/sec on 75% I thought it would be much greater than this?

Everything above this will get full enrich, even 200 %/sec

[gboezio]

Hi

Thanks for this info... So your VTR is running a turbo?

Yes a K03, not very powerful yet, but I need to turn up the boost to 8 PSI
The build thread is here
http://superhawkforum.com/forums/showthread.php?t=18880

I can already see a couple of things i want to explore, having looked at your msq.

At the moment i am only using 1 VE table, i have 2 seperate exhaust pipes with the wideband in the rear cylinder pipe only so AFR tuning is based on what the rear cyl is doing, i can already see from the exhaust that the front is running rich when running off the rear VE map and AFR. I think that i will look at the 2 nd VE and lean the front out a bit.



I have not used Alpha-n yet, did you use any particular rule of thumb to set up the map an ranges?

I'm setting the throttle % in a logarithmic fashion, there a huge change in airflow at low % and very little in the last 50 %, my Ve table may seem a little wacked since there is a switchover at 3100 rpm because of the turbo start spooling and will vary what goes trough the TB at a given %
I set the table once throwing numbers in there and it ran so good that I just re tuned the VE table using the logs.
My engine would pull 75 kpa at idle and sometimes up to 80-82 kpa, now the alpha-N will bring the idle to the 50 kpa bins, giving me a resolution of about 5 bins to tune the idle, low load, medium, high and 100 kpa, before this I had 2-3 and most of it was happening in a single bin, since the ECU take MAP as a multiplier, the VE figures were pretty high
The difference in driveability was huge, I came from a tune that was burning my clutch and now I could have bought the bike this way, most Japanese bikes use pure alpha-N, individual throttle bodies make the idle vacuum even worst since it pulse like hell, relying on it is next to impossible specially with a 245° @ 1mm cam.
Mine use a plenum to help the vacuum

Finally re your Accelenrich map, how did you get to these settings and why is the max %/sec on 75% I thought it would be much greater than this?

Everything above this will get full enrich, even 200 %/sec