how long would you have to warm your car up to avoid the cold start issue you are having ?

^ Not sure. I haven't tried -- I don't have the patience. I'd guess around 3 mins. of just sitting there with the ending idling.

if you wait even around 30 seconds or so and start to drive the really bad lurch won't happen. What I have noticed happening is, you get it into first and start driving and lets say you give it 30% throttle and hold it there. The revs will be lag, maybe something comparable to the feeling of turbo lag, and then without adjusting the throttle input the rpms will rise at the normal rate of speed. Now to a passenger it may just seem like you've just opened the throttle some but really it hasn't moved. Really something like turbo lag, as if you mashed the throttle down low and it just lags until the turbo kicks in and then kicks off. It will stop after 1-2 mins of driving though. These times also probably vary depending on how cold it is outside also.

Hmm...I always wait at least 30 seconds before I start driving and still have this lurch. I guess maybe it's not as bad as it'd be if I didn't wait before going, huh?

yeah, probably..was hoping UpRev would have shown up with a post at least saying that they have been informed and will be looking into it or something..

They're probably on their way to SEMA.

is this happening on the 7ATs too? Or has no AT been tuned yet?

Two pages back:

Rich did say last week he was going to SEMA he was staying at the Stratosphere I think that is the name Maybe we can call him there:stirthepot:
I am going to take the Texas Titan to Uprev on Wed to get tuned.I will get some info then. There it is in the background

Oh yeah, he is at SEMA but Jared and the rest should be there and that's who matters in this instance. I'll call tomorrow to find something out..not sure they even get on here since Rich does most of the marketing side of things.

So are we seeing the opposite trend of trying to reduce the throttle lag and improve response? :-(

Only at cold start for the first couple of mins. After that, it's all good. I've actually started to get used to the behavior and, this morning, was able to change the way I modulate the clutch enough to actually get off the line semi-smoothly. I wouldn't switch back to my stock ROM right now even if I could. The benefits of the tune outweigh this minor bug. Of course, that's just my opinion as it relates to my specific car. Others may feel differently. And for 7AT models, there's no way to change the way you modulate the clutch, so there's no workaround if you have a 7AT (point being, this still needs to be fixed).

Rich would be the one going to Sema if anyone went. Jared would stay at the shop with the other guys doing the tunes as he knows the software in and out while Rich is just the sales person.

Knowing how uprev works, they should have a fix really really quickly. And the issue is only on cold start for a few seconds. After that, it seems normal.

Sharif, have you talked to them to confirm they're aware of the issue?