math tp calculation, help.

Discussion about ECU Tuning Products and Theories
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maik21
Driving Mom's Station Wagon
Posts: 32
Joined: Tue Oct 16, 2012 8:59 pm

math tp calculation, help.

Post by maik21 »

i search in web without lucky.



from nistune mapping guide:

theoretical pulse width (TP) = MAF Lookup*injection multiplier/RPM

injection Pulse Width = Fuel table [ RPM, TP/256 ] * TP + Injector Latency + Various enrichment.

.......

from sr20 forum. the blue one, Beginners Guide to Chipped ECU Tuning say:

TP = (VQ x K Value / CAS Value) / Number of Cylinders

.......

i try to get into maf vq table using a known LOAD and RPM but my calculations are wrong.

.......

for a nissan b14, stock sr20de, wot, 6000 rpm, maf voltaje is more than 4.0 volts. tp load is at 78.

if i do calculations using nissan guide, i dont get into load 78. if i do reverse calculation, i dont get into a good maf Q value.

maybe there some missing in math calculations.
maik21
Driving Mom's Station Wagon
Posts: 32
Joined: Tue Oct 16, 2012 8:59 pm

Re: math tp calculation, help.

Post by maik21 »

thankyou very much for yor help.
maik21
Driving Mom's Station Wagon
Posts: 32
Joined: Tue Oct 16, 2012 8:59 pm

Re: math tp calculation, help.

Post by maik21 »

just need some web page or some math formula to try again. i dont want all job done :D
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