Hey guys, need some help. I am tuning my car myself since there are no tuners in my area, and I doing well so far. I need to know if there is a general rule that tuners follow in regards to ignition compensation for engine/air temperature.

Presently my water temp ignition comp. are Zero from cold right through to normal operating temp (-4*F - 194*F). Above 194*F, I begin to retard timing reaching75% retard by 250*F. Is this ok?

Regarding air temp, this is the one I am not sure what to do. I begin to retard from about from about 86*F reaching about 5% retard by 140*F.

Please give some advise.

thanks

 

what ECU are you using

 

EMS Stinger

 

when it comes to ignition compensation for engine and air temp i disable them or leave them at zero. to me it's safe that way cause then if the car is cold and you add timing it's adding timing on whatever the timing map is set at. i'm no tuning guru, but any adjustments for drivability purposes i would use the fuel map instead of timing compensation. just my 2 cents.

 

Any other info will be helpfull

 

The PFC ecu has both water temp and air temp tables to retard timing if either gets high.
It was more needed with the stock setup because both the stock radiator and IC were way too small. I still use them as an extreame backup safety valve.

Air: 90C retard timing 3 degrees, 80 - 1, 70 0.
Water: 110c retard timing 6 degrees, 95 C 0.