Getting everything wrapped up for the turbo setup. Only problem I have is I don't have the numbers for the injectors I bought. PN 11167-675 from fiveomotorsports. They are the enlarged 44lb marine injectors and flow around 72lbs. I will be running e85 down the road, that's why I went with the bigger ones. I was wondering if anyone has used these yet and if I could sneak a peek at a tune. They say that since they started out as 44lb'ers, that you only need to change the ifr table and leave the rest as it was with the 44 lb'ers. I use hpt.
Thanks!

Also, the chart they gave me says they flow 767cc/min at 4bar with dead time of .5 ms@14 volts. 12.5 ohm

 

anyone?

 

Uggh this statement always makes me laugh not only from the tuning aspect of things but also from the people selling the injectors that dont fully understand the dynamics of an injector. To correctly tune in any different injector even if they are just a resized injector the offsets, short pulse adder, etc... should also be changed otherwise the fueling errors just get "baked" into the VE/MAF tables.


Any errors in the injector characterization will show in the calculated airflow tables and cause problems later including those little annoying drivability issues that can drive you nuts.


ALOT of people are really misled by the statement of "all you need to change for these injectors is the IFR"

 

And good luck finding accurate data for many of the injectors being sold in the aftermarket. It should be provided with the injectors. You might find data for the base 42/44 injectors that those started out from though.