The ultimate LT1 $$EE patch thread

[WASyL]

is there a way to add table or patch to enable radiator fan end/or control external fan vs trans temperature fluid ?

best regards

[kur4o]

is there a way to add table or patch to enable radiator fan end/or control external fan vs trans temperature fluid ?

best regards

There is already an engine oil temperature fan control in the code. It is used on vette applications. I can repurpose it to be trans temp control if that suits your need.

It will very easy patch, just changing the lookup value.

[WASyL]

that would be super cool to control radiator fan by TFT, very usefull when doing lots of burnouts and spins on lockal parking lot on hot days. will keep that trans a bit cooler to extend it's life :) My truck run 3000RPM converter :D

so yest please :)

best regards

[kur4o]

that would be super cool to control radiator fan by TFT, very usefull when doing lots of burnouts and spins on lockal parking lot on hot days. will keep that trans a bit cooler to extend it's life :) My truck run 3000RPM converter :D

so yest please :)

best regards

1b15 trans temp 0.75*x-40

1bd oil temp 0.8*x-40

fan1
change
86ae-[01bd->1b15]

tune
2657 x*25 rpm threshold for fan1
2658 timer for rpm threshold
2655 threshold on lower rpm 9c 40 on
2654 threshold on higher rpm 9c 40 off
2656 hysteresis

fan2
change
8779-[01bd->1b15]

tune
265a fan2 threshold if rpm lower
2659 fan2 threshold if rpm higher
2656 hysteresis

some initial findings.

Some tuning of oil thresholds will be needed. You can check some vette bins for data comparison.

[WASyL]

kur4o sorry but my english is not that good as it should be. by "You can check some vette bins for data comparison." You mean to compare couple bins if thay have same values or do You want me to do something else ? i know noting about disassebbling codes. Descriptions You gave actuall match of what i see in tune except of "2658 timer for rpm threshold", this one i can't find in any tune with EE xdf

best regards

[kur4o]

kur4o sorry but my english is not that good as it should be. by "You can check some vette bins for data comparison." You mean to compare couple bins if thay have same values or do You want me to do something else ? i know noting about disassebbling codes. Descriptions You gave actuall match of what i see in tune except of "2658 timer for rpm threshold", this one i can't find in any tune with EE xdf

best regards

You can check in a vette bin how this are set, since on other bins they are maxed out. That way you can have general idea how to set them.

The timer is some simple one. Wait some time before you switch to high rpm mode. For example you need to be xx seconds above 3000 rpm to switch.

This prevents some back and forth oscillations.

[WASyL]

Oh ok, so on Vette bins they are not maxed out and values are how they should look, so if You are able to add this patch i can test it text week. I know when they should turn on.

best regards