Rotational/cyclic idle

[pacman552]

would Trifecta be able to tune in a rotational idle to help cool the turbo. would this help keep from cooking the turbo after hard runs at the track and autoX? or would it not really matter.

 

[ThatTmoGuy]

Isn't this something usually associated with an anti-lag and launch control system?

 

[pacman552]

yes, it's used to help cool the turbo , exhaust, and engine after anti-lag use. essentially during idle it cuts ignition to 1 cylinder during rotation. so your during it your idle will be . fire cylinder 1-2-3-skip 4, then 1-2-skip 3- 4.

i would love to have a select-a-tune option of normal performance tune, and then a performance tune with rotational idle to help after heavy use of the turbo during races.

 

[Eric Smit]

I'll check on it.

 

[Ubryaj]

Why not just let the car idle for a little bit after a run/session?

 

[pacman552]

i always do, im just wondering if a rotational idle could help. also the boy racer in my like the cool sound of it lol.

thanks for the help eric

 

[OmgNoWai]

I dont think it will be necessary to do this. If youre overly concerned let the car run for 20-30 seconds before you turn it off.

Even when you turn it off the turbo is being cooled by the coolant. The coolant flows by convection throughout the system even though the car is off.

I think with stock youll be ok as GM has accounted for people running the car hard then stopping. Its when we overload the system with bigger turbos and such that we should worry about added cool down time. Take it for what its worth

 

[ThatTmoGuy]

I dont think it will be necessary to do this. If youre overly concerned let the car run for 20-30 seconds before you turn it off.

Even when you turn it off the turbo is being cooled by the coolant. The coolant flows by convection throughout the system even though the car is off.

I think with stock youll be ok as GM has accounted for people running the car hard then stopping. Its when we overload the system with bigger turbos and such that we should worry about added cool down time. Take it for what its worth

After extensive discussion and dissection of the cut away's and technical drawings of the OEM turbo it is only oil cooled, therefore we should not shut it off with hot oil in the turbo. The cooling benefit of this type of firing order are for cooling the cylinders more than turbo (although it will bring all of the temps down across the board) I just don't see a need for it without the anti-lag and launch control. It does sound awesome but an ice bag on the turbo will do a better job of cooling off turbo IMHO

 

[Eric Smit]

launch control is in development.

 

[$ub$onic]

I had a shut off timer on my first Cummins you could pull into a parking lot set the timer pull the key walk away it would idle for so long then shut off. It worked pretty good

 

[rodslinger]

Ghost cam!!!!!

 

[ThatTmoGuy]

launch control is in development.

well of course it is, but without antilag a cyclic idle still isn't needed. Antilag is the main reason this firing order was thought up. I don't see a need for antilag on this motor until someone straps up a fatty turbo.

 

[ThatTmoGuy]

i had a turbo timer on my first cummins you could pull into a parking lot set the timer pull the key walk away it would idle for so long then shut off. It worked pretty good

ftfy

 

[pacman552]

ya i have thought of using a turbo timer, but i usually have time to sit for a few min after running the car hard. what i am most concerned about is just trying to cool everything off a little faster between autoX runs. also i cant wait for launch control!

 

[ThatTmoGuy]

Bring a case of compressed computer duster with you to the track, spray motor down with upside down cans between runs

I too cannot wait for launch control, that drop those '60 times into the high 1.9's

 

[GeneralZod]

The guys that are hard on their turbo diesel will engine brake to bring EGT down to help cool the turbo. With fuel quantities near zero, it makes sense.

 

[$ub$onic]

I've had to pull over a couple times on very long hills to get the egts down. I melted one turbo before I got a pyro. I only had a hard time with egts because I was over weight 50% of the time . On my first Cummins my drive line parts list got rather large.

 

[pacman552]

I've had to pull over a couple times on very long hills to get the egts down. I melted one turbo before I got a pyro. I only had a hard time with egts because I was over weight 50% of the time . On my first Cummins my drive line parts list got rather large.

sounds like you need to go on a diet!

 

[sx sonic]

Our turbo is liquid cooled. Of this I am 100% certain.

 

[$ub$onic]

sounds like you need to go on a diet!

Hahaha nice one