Cags and cot time delay

[Exhausted1]

Just got my intune and I was wonder what these are
I uploaded the diablo tune and hard shft and it does shift hard but there is a delay between shift
Do they have to do with that?

Thanks for the input
-Mike

[Mike_Levy]

CAGS is the skip shift on manual transmission cars. From the factory they are forced to shift 1-4 at light throttle. Turning it off allows them to shift 1-2.

COT is Cat Over Temp. I believe its almost like a limp mode, reducing performance, to allow the cats to cool.

What vehicle are we talking about?

[Exhausted1]

This is on a 2011 Chevy silverado crew cab
5.3, 6 speed auto

What I'm talking about the delay is the shift out of gear and then a delay as it shifts into the next gear under WOT

So far I'm liking it just need to know what some of this stuff does

Also what is converter calibration
I assume it has to do with the torque converter

[rdss]

I was running the firm TCM tune unmodified and loved it. I didn't notice any hesitation between shifts at WOT and would get a chirp into second. Try using the firm and/or adjusting the firmess on the hard shift tune.

[rdss]

Just talked to Lew about your problem and he says to play with the shift rpm to possibly get rid of your shit delay. He also said the COT setting dumps more fuel in to cool the cat and to not mess with it unless you remove your cats.

[Mike_Levy]

Just talked to Lew about your problem and he says to play with the shift rpm to possibly get rid of your shit delay. He also said the COT setting dumps more fuel in to cool the cat and to not mess with it unless you remove your cats.

Thats what I thought COT did, but when I thought about it, it didn't make sense. A rich engine makes the cats run hotter and can melt the substrate (I did that on two sets on my Jeep). If its dumping in fuel, its essentially causing a rich exhaust condition. How does that cool the cats and not overheat them?

[Exhausted1]

Just talked to Lew about your problem and he says to play with the shift rpm to possibly get rid of your shit delay. He also said the COT setting dumps more fuel in to cool the cat and to not mess with it unless you remove your cats.

Sounds good I won't mess with the COT
Did he say to up or lower the shift rpm?
Or just play with it

[rdss]

Just talked to Lew about your problem and he says to play with the shift rpm to possibly get rid of your shit delay. He also said the COT setting dumps more fuel in to cool the cat and to not mess with it unless you remove your cats.

Sounds good I won't mess with the COT
Did he say to up or lower the shift rpm?
Or just play with it

He said to play with it which I took as exactly what you took it as. +\- around the preset rpm until it feels right.

Mike, I'm not sure, knowing the effects of fuel, it cools your hand when you dip your hand in it, if it's not burnt I'm assuming it has the same affect in the extremely hot cat. I don't know, maybe Lew will fill us in. I was just trying to help get Exhausted help with his real problem and keep him from messing with parameters that he shouldn't be messing with. None the less, he has cats so he wants cat protection and needs to leave COT on.

Exhausted, I have been corrected by Lew, it's shift point not rpm. But yes, adjust it around the preset shift point to find what works for you.

[06MonteSS]

ok, hold up here... guess I gotta take time out from the 24 tune emails I have and just login and type myself... Thanks RDSS!! ignore his post

don't change the shift RPM - that's for shift points... I was talking about the shift speed/quickness, for how fast/quick it shifts... THAT'S what you need to adjust....

and Mike, dumping in extra fuel cools it down - cools the cats down... Converter over-temp protection utilizes a relatively rich mixture to lower EGTs, and consequently cool the converter down a bit.

that's different than running plain old too rich all the time... your AFR at WOT and fuel trims for part-throttle could be spot-on... but if your cats get too hot, the ecm will thrown in some extra fuel for a little bit to cool them down...

once temps have lowered, things are back to normal...

but yes, running pig rich all the time like you said, can/will kill the cats... but this is not the case here with COT and its functionality...

[Exhausted1]

ok, hold up here... guess I gotta take time out from the 24 tune emails I have and just login and type myself... Thanks RDSS!! ignore his post

don't change the shift RPM - that's for shift points... I was talking about the shift speed/quickness, for how fast/quick it shifts... THAT'S what you need to adjust....

and Mike, dumping in extra fuel cools it down - cools the cats down... Converter over-temp protection utilizes a relatively rich mixture to lower EGTs, and consequently cool the converter down a bit.

that's different than running plain old too rich all the time... your AFR at WOT and fuel trims for part-throttle could be spot-on... but if your cats get too hot, the ecm will thrown in some extra fuel for a little bit to cool them down...

once temps have lowered, things are back to normal...

but yes, running pig rich all the time like you said, can/will kill the cats... but this is not the case here with COT and its functionality...

I appreciate you taking the time
But I don't see an adjustment for shift speed
The choices I have for the transmission are:
Shift pressure normal
Shift pressure sport/ tow
Shift rpm normal
Shift rpm sport/ tow
Torque management

[rdss]

I think that's where I'm lost as well. You might need a custom tune from Lew to get exactly what you want.

[06MonteSS]

aaah, ok, interesting... I thought it had the adjustment for shift time as well...

well, then no, you can't do anything about that, it would have to be done in a custom tune...

and I think that you (and other users!) should start a new thread and definitely post up about getting that parameter functionality added so that you can be able to adjust that shift time yourself as well!!

I thought it had that already... my bad... sorry...

to me, I would think the 3 main parameters that users should be able to adjust themselves would be the shift firmness, shift points, and shift time/speed...

[Exhausted1]

aaah, ok, interesting... I thought it had the adjustment for shift time as well...

well, then no, you can't do anything about that, it would have to be done in a custom tune...

and I think that you (and other users!) should start a new thread and definitely post up about getting that parameter functionality added so that you can be able to adjust that shift time yourself as well!!

I thought it had that already... my bad... sorry...

to me, I would think the 3 main parameters that users should be able to adjust themselves would be the shift firmness, shift points, and shift time/speed...

I would think so to, I thought my predator had that on my transam but that was 10 years ago
I wonder if the pressure adjustments for WOT would do something

[Exhausted1]

Okay looks like I got it figured out. I added 20% pressure to the wide open throttle shifting and it seemed to dramatically reduce the delay between gears. I now am scratching from first to second and a nice little chirp from second to third I'm loving these adjustments that I made.
This is all in the firm shift setting I would be afraid to see what the hard shift is like I'm imagining it's pretty violent