6.0 Question

[OCHOA505]

I have a 2003 K1500 HD and it has a fair amount of bolt on's and such (has plenty of power). When I intially take of from a light or any stop it seems like there is a delay or lag before the power is there. As soon as it picks up to even 5 mph or so it gains the power instantly. The truck is lifted 4" Fabtech and has 305/70r16, nothing crazy (3.73 gears). Is this just the torque management of the truck or tranny? The truck has been tuned w/ EFI Life, and again it has great power but just kinda bugs me can't get rid of it. Is it just my truck or is this common in the 6.0? Thanks!

[kyhunter89]

gears and stall will get rid of it. are you the one tuning it?

[OCHOA505]

It is one of my best friends, so not directly but I am with him as he does it. I was considering buyin 4.10's but the truck is sick with power just hesitates just a bit and want to get rid of it. I was planning on camming it here soon!

I am starting to wonder now... When I bought the truck it was pretty fixed up and I am now wondering if it does have a differend stall 1500 or so.

[aj06bolt12r]

Stock stall is more than 1500. If you cam it you will want gears for sure with those tires. I am planning on getting 4.88 gears here soon. But yeah sounds like torque management to me.

[OCHOA505]

I don't really want to go with 4.88 because of the RPM's on the highway? As it is I only get about 11 - 13 mpg, will these gears change this or would it stay the same? What are thoughts 4.10's?

[pl4yboy]

How much TQ management is remaining in the tune? Does it have the 60e or 80e trans? If its the 80, I'd take out 100% of it. If it's the 60e, I'd remove 80%

[OCHOA505]

How much TQ management is remaining in the tune? Does it have the 60e or 80e trans? If its the 80, I'd take out 100% of it. If it's the 60e, I'd remove 80%

I have not had the truck too long and I am not even sure if it has a 60e or 80e, any easy way to tell? So, you are saying to remove the TQ Management to help free some more power out of the truck? Thanks for th info!

[aj06bolt12r]

You have an 80e if you have a 1500hd. Yes torque management removal will keep the computer from retarding the timing to "manage torque" to be easier on the drive train. You are going to get horrible gas mileage no matter what.

[MrHorsepowerLSx]

OCHOA505 A 4l60 should have no removable inspection cover, it would like a big watermelon slice if it was there, if it does have that then you have a 80e, squiggly lines in stamped into the bottom of the pan are a giveaway also that it has a 4l80E, I have a cammed 5.3 1500 that is DBC and i have the same hesitation issue with the 3:73 gears and 33" rubber, but it gets slightly worse whet the motor reaches operating temps, cold starts are no problems, i ordered a YANK TT3000 and that solved my problem

[BuiltZ71]

I've got 4.88's with a 3200 stall,with a 35in tire on a 20in wheel..and it sits at about 2000rpm or so at 70mph it's not that bad..it's crazy out of the hole tho,it has to be in 4wheel high to get any traction.