MoTeC Global Forum

Hey guys im on next stage of problem
I have installed larger injectors 4x 2200cc bosch
On the m2r the coil resistance is 9.1
And dead time is 0.45ms at 14v

Im trying to put the dead time into motec but failing i have set the injector battery comp to 4 for now
As the numbers in the box i cant make sence
At 14v its 780 is the 0.45 put into same box as 450?
And then what do i do for the other voltages

Also another problem is i have set the injector scale to 10
But the table values are to low and very rich so i had to trim the injectors to -40% better but would like to keep trim to 0 and sort it out properly thanks
















Just found this can i use an avrige for between voltages ?

For your battery comp, use the table at the bottom of your post, choose the row that suits your fuel pressure and interpolate the missing values, just use 1455µs for all cells below 8 volts.

To correct your fuel map, first set the trim back to 0, then go to fuel map and with any cell highlighted type "0.6T*", that will multiply the whole table by 60%. Next go back to the general settings menu and change IJPU to something smaller, select yes when the message pops up asking if you want to interpolate to fuel table, that should make the fuel map numbers bigger without effecting the tune much.

thanks very much i tryed putting them numbers in but runs very bad then emailed the company back and they sent me another set of dead times lol they must have sent me the wrong times

Volts 8 9 10 11 12 13 14 15 16 17 18
ms 2.273 2.045 1.864 1.682 1.545 1.455 1.364 1.273 1.227 1.182 1.136

another problem i have is the motec only goes up in 20ms at a time so i cant type the exact numbers in e.g. 14V should be 1.682 but i can only punch in 1680
will this cause a problem or nothing to worry about ? thanks again

People obsess about dead times, they're no big deal 95% of the time.

And they will not have been the cause of any bad runnning, that will simply be the engine needing tuned correctly, which it will do after any major injector swap.

Yes you can get a good starting point by applying some common sense, but it will still need tuned again to ensure everything is fine

Thanks very much for reply
Im going to try again weekend
As i think i need to scale the injectors after thecnew deadtimes im scaled to 10 even trim set to -60 still way to much fuel if i reduce scaleing to the 5-9 range will the injectors still fire in seq mode and not in group fire mode
As in help mode it says 10-15 is sequential
And 5-9 are for group fire
I have set in settings as sequentiail but unsure if setting the scale will change it( could this be why its being flooded )

Hi
Was just wondering what injector current setting you end up using with those injectors,was it 0?
Thanks

Ahh sorry i never got any emails about replys
But yes m8 set to 0.0
And the Injector scail i found was 10 for best results
And i have the secondrys kicking in at 6k
Any more info let me no