does anyone have a good scaling and latency for precision 780's


everything seems to check out well.. but im getting a really rich spot from 1-2k and so/so gas mileage... stock injectors iwas getting 200ish a fill up, now im getting 170ish... this is me staying out of boost... just having a little fun...


i have stock latency with a 713 scaling

when i use the reccomended aem latency it screws everything up

my mid high and low trims seem very very consistent... but my o2 feed back is all over the place from -15 to +15


ive played with them the best i can and the stock latencies seem to be working best


thanks in advance

 

You cannot use stock latency values on aftermarket injectors.

Hint, try adding more latency at 14v

 

i've tried from stock up to .96 and its not doing much... i understand it takes about 10-15 min of logging to see changes.. bah!


thank you for responding razorlab

 

use these and see how they work out. I know of at least 4 people that are using them and they work great.

This is for the PTEs 780.

4.69 3.504
7.03 2.184
9.38 1.224
11.72 0.96
14.06 0.744
16.41 0.552
18.68 0.432


injector scaling 696

 

ive tried those and i was getting some bad lean spots and some bad rich spots... the car just isnt responding..... bah so much for learning how to tune

 

m gettin the same thing with 780z pretty lean spots AFR go neat to 11z and suddenly it jumps upto 12-13 fer a millisecond thn again to 11s... wat the heck is that....

 

when are you guys getting it jumping around like that? at idle or somewhere else?

 

Sudden dips/releases in gas pedal can lead what you are describing!

Please post some logs whent that is happening so they can be analyzed.

 

its at WOT ....

 

If the AFRs oscillate that bad, it may be something wrong with the tune.

Can you post your High Octane Fuel Map?