What are those settings for in the ms2 extra code rc1 for?

 

The staging secondary enrichment and primary reduction delay are for those who have trouble getting staged injection to engage smoothly.

There are 2 reasons why you might have trouble (well more reasons than 2, but these settings solve 2 of them)..

1) secondaries are further up the intake, and have to wet the walls of the intake before their fuel will really get to the engine, so an enrichment can help wet the walls faster.
2) If the primaries reduce their PW immediately, the fuel from the secondaries might not be getting to the engine yet, so if you delay the primary reduction a little bit behind the secondaries engaging, you can also get rid of the slight lean spot.

Both of these are more or less overtaken by table-based staging. Table based staging has worked better than any other idea I've had to get rid of the staging stutter.

Ken

 

thanks Ken, I whas using table based staging with stock 550cc but upgraded to 1600cc secondarys and I having problems with staging stutter now. how you sugest to stage with 550c primarys and 1600cc secondarys?

 

Did you remember to change the secondary size in the settings?

Are you sure your opening time is correct?

You will probably need to adjust the staging table so that the secondaries start out coming on more gradually than before but then ramp up faster.

Ken

 

I change the secondary size, my req fuel is 10ms. I will start at 3500 with 40% at 90kps and ramp to 95 at 4500 at 100kps is that ok?

 

I was thinking start with something more like 10% at 90kPa, and ramp to 100% by 120 kPa, then go from there.

Ken

 

thanks!!

 

I found the problem, the 12v feed to the injectors.A rat eat part of the cable!!! and some interior too jejejeje now runs great