supershift67

iTrader: (1)

I have a 2007 6.0 in my chevelle with a 4l80e. 4.10 gears. If you try to power brake it with M/T et streets it will not spin the tires at all. The car seems to run good and has good power after your rolling but thats it. I am used to a big block chevy and it used to roast the tires with a blip of the throttle. My brother has an ls1 in his 81 camaro that will fry the tires 1st thru 3rd. I am wondering if the programmer left the torque management in and if the T/M could cause this. My 6.0 truck is the same way but my 5.3 yukon will do a good burnout. Thanks guys. this engine is all stock also.

chevellepowered

iTrader: (37)

isnt this the ly6 motor??? 07' right..

if so you using the e38 ecm e67... what ecm you using..

supershift67

iTrader: (1)

this is an lq4 engine.317 heads and no vvt. I do have a stock convertor also

supershift67

iTrader: (1)

stock ecu programmed by wait4meperformance.

Atver300

iTrader: (8)

Are you using the drive by wire or a throttle cable?

GA95DCMSS

iTrader: (13)

Is your trans linkage adjusted correctly? I had the same problem, turns out mine was half between D and OD when it slid into OD.

supershift67

iTrader: (1)

drive by wire

supershift67

iTrader: (1)

the trans linkage is good. shifts good through all the gears. Maybe it just doesnt have enough power. It just seems weird that my 01 gmc truck wont spin the tires either but my 03 yukon will with a 5.3 engine. that is why I thought it might still have the torque management turned on.

cyamaha2007

iTrader: (3)

my 2003 tahoe will not spin over the tires for anything its a 5.3

Atver300

iTrader: (8)

I think there is a table in the computer called brake torque management that wont allow the engine to make but a limited amount of either horsepower or torque when the brakes are applied. Basically even though you are flooring it the throttle blade isnt opening very far.

the_merv

iTrader: (88)

^^Same thing I've seen from reading around here..damn electronics won't let you have any fun..lol

supershift67

iTrader: (1)

ill have to check that out. thanks

ZTwentyAteU

iTrader: (12)

thats what it is, that or the ETC control.

if you log a run, when you hit the gas and try to brakestand it, it will cut throttle position back to 50% or try

supershift67

iTrader: (1)

what do you use to log your runs with,what program? thanks

CoolAid

Look into HP Tuners.

Jimbo1367

Is there anyway to over ride this? This is just DBW, correct?

the_merv

iTrader: (88)

You have to Tune it and adjust them tables.

ls1nova71

iTrader: (4)

Have you tried unhooking the brake switch or manually depressing the switch so that the brake lights don't come on (and so the PCM thinks the brakes are not on) then try to power brake it? Would tell you if that is actually your problem. Just a thought.

the_merv

iTrader: (88)

^^There ya go..

Atver300

iTrader: (8)

That car should blow the tires off without even touching the brakes. I'm guessing its still has all the torque management in the pcm, or the etc tables aren't right. Get someone with hptuners to pull the tune and post it up.