COS 5 Nitrous retard for Anti-Lag

[cyipher]

Can the nitrous retard be used to help spool, by retard the timing while on a 2-step and t-brake? is there a max timing that can be pulled? min or max rpm engagement?

[cyipher]

bump

[Highlander]

I was thinking about this. Wondering if the 2step can be integrated to the N2O controls...

Thanks

[cyipher]

anyone? joecar?

[joecar]

IDK...

the usual manner of COS5 usage is to modify fuel/timing when nitrous activates.

[joeygc5]

Can the nitrous retard be used to help spool, by retard the timing while on a 2-step and t-brake? is there a max timing that can be pulled? min or max rpm engagement?


I don't see why it couldn't. Hell you'll even be able to fine tune the fueling as well, which isn't possible with the MSD/Lingenfelter boxes. You could pull over 25 degrees, but you'd only need 10-14 on a typical build, imo. If you have the time why not give it a try?

[cyipher]

i dont have a 2 step yet, have heard the lingenfelter boxes have issues and msd doesnt do retard, which i wanted to make sure my idea would work before i drop 220 dollars on a msd unit.

[cyipher]

Well I bought the msd unit and tried to use this on cos3 using the iat table to retard timing, while this did work it looks like it takes about a half seond for the ecu to see the iat temp change causing a bog when i let off the 2 step due to only having 5 degrees of timing. Does COS5's timing features pull timing faster then this?

[johnv]

Yes the nitrous timing retard should be intsant.

[ryans1000]

Well I bought the msd unit and tried to use this on cos3 using the iat table to retard timing, while this did work it looks like it takes about a half seond for the ecu to see the iat temp change causing a bog when i let off the 2 step due to only having 5 degrees of timing. Does COS5's timing features pull timing faster then this?

perhaps it is the sensor itself which is slow not the ecu. I've heard of people wiring up a toggle switch that alters the iat signal instantly, can't recall if one of the circuits had a resistor inline.

[cyipher]

perhaps it is the sensor itself which is slow not the ecu. I've heard of people wiring up a toggle switch that alters the iat signal instantly, can't recall if one of the circuits had a resistor inline.

Im 100% sure its the ecu, as i have it wired to relay and i can physicaly hear it click then 1-2 seconds later watch the scan tool change temps. I havent had the time to fool with cos5 yet so i dont know how its gonna work. Im in the process of getting my iats down from the 230* range :muahaha:

[TrendSetter]

I know this is an old thread but i dont really hang out here much, however i have specific experience doing this.
I have a 4.8/t56 turbo combo with cos5 and a msd 2 step. i connected the msd ground activation with the nitrous ground activation and ran it through the clutch switch. i set the nitrous activation to pull timing and add fuel and activate a few hundred rpm before the msd 2 step. it all works pretty well but its sensitive to the correct amount of fuel added to really have a good bang out the exhaust.