Thread: Nemu z32 msd 96lb tune

Hello Im looking for a base tune for sr20ve-T with z 32 maf and msd 96lb inj.
I have all the sensors to go map only but I cant get the car to not run crazy rich (black soot rich) when on map only. A map base tune or some input would also be awesome thanks guys. I have never had issues tuning this thing so Im thinking it is inj size.

honestly man it shouldn't be very difficult to get it running on maf..

start with a fresh sr20de tcd, set the maf to z32 an set the injectors to i think 1000cc?? or whatever 96# equates to.. from there goto the setup tab an goto MAF LOAD --> Parameters and adjust the maf load factor until you can get a 14.7 afr idle

this stuff doesnt really work like the calum/nistune stuff.. i mean it does but it doesnt.. there are things i may have done to get my car to run correctly that you car would not like an would cause it to run poorly..

atleast if you start fresh an do what i said its a step in the right direction an if you make logs an stuff you can usually get @JKTUNING to take a look an see what you might need to do..

hope that helps.

Yeah I did all that and it's crazy rich no matter what. I emailed jktuning already and have been reading everything I find on it. I think it's a bat. Offset issue because that seems to really effect the start up and idle. I'll keep at it and post up when I figure it out. I have tuned 555cc and 750cc injectors without issue so it is an inj. Size/type issue. These are the first msd low imp. Injectors I have used with this ecu. I'm running jwt resistor with the inj. So I'm not sure if that effects how some settings should be.

I hope you get this ironed out because I need you to tune my 740s once they go in.

Ill make it work. Get your injs in and swap wastegate springs so we can dial your car in...nupe.

Try adjusting the size of the injectors as well as the battery offset stuff

Yeah I have been adjusting bat. Offset, inj size and close time. This seems to have a large impact on inj function. On the msd forums a msd rep stated they don't know specific offset/lag or close time for the 72lb or 96lb inj.s lol figures.....

Shoulda got id1000s

10-4

Adjusting the bat offset is super easy to dial in. At idle with the car warmed up, select the value which is highlighted in realtime, then also select the cell on either side. Slowly move it up and down, WHEN you notice the idle smooth out, doesn't matter what the AFR is. Then adjust the fuel map in the area that is idling, either increase or decrease all the cell needed at one time, ie: highligh a 9x9 area and add you subtract. Keep going back and forth. Keep note of your original values, note you new values, then adjust the remaining values based on the percentage difference. Also, trying to adjust the offset with the fans on, lights on, ac... make things harder. Dont try to compensate with any of these on, adjust them in the fuel map.

The injector close timing really helps with how much your afr fluctuates at idle, especially with large injectors. I had all these problems when I switched over to MAP. Injector close time is basically the time the injector is spraying while the valve is closed.