05 VZ 3.6 traction control and cheap engine mods

[SK8NVZ]

hi i'm new to this site and i've just bought a VZ exec. My mate's got a skid pan up in the country so i 'gave it some use' or atleast tried too, I held the brake and accelerated but the wheels wouldnt spin. The car was rolling so i wasnt holding the brake too much. Now with a factory claimed 200HP it should be able to spin up, is there some sort of 'anti-burnout' device fitted to these cars?

Also does anybody know of any cheap mods? i'm gettin exhaust done on tuesday

[Kal123]

Welcome to the forum : )

Have a read of this section.
VZ Holden Commodore (2004 - 2006) - Just Commodores

[SK8NVZ]

thanks for the link but it doesn't answer my question regarding TC.

Now i've down some research and found that my car has BA (brake assist) , could this be holding my rear calipers more than my front ones?

[f1tzy]

If there is no button for tc then it hasn't got it. From memory it wont go past 2000rpm with the brake on, its a built in anti abuse measure

[SK8NVZ]

yeah fair enough but in the wet it spins up, maybe i can hack into the ECU :P Hopefully the exaust i'm gettiing on tuesday help's

[HoldenOnn]

yeah fair enough but in the wet it spins up, maybe i can hack into the ECU :P Hopefully the exaust i'm gettiing on tuesday help's

Yes, absolutely you can hack the ECU. Once into the ECU, there is a section called "burnout abuse mechanism (BAM)". You have to deactivate that. But before you do that, you must deactivate another section called "why oh why (WOW)". Then you have to reset the ECU to exit. To do this you hit the button called "Why the #%ck (WTF)".

Then once complete, bolt on a new exhaust and hopefully you can spin those wheels and hope they spin as fast as your thoughts fly into your head.

Seriously though, another new user and a first post about how to do a burnout hmmm???. Obviously you haven't hit the search function. Why not try that and see how you go. If you have any troubles, then PM me and I will walk you through it step by step hmmm!!??

[ashbox]

the ecu wont let the motor rev above 2000rpm whilst the brakes are applied.

says this in the owners manual.

get it tuned if you want and have the anti abuse stuff removed.

[andyman]

what you did was activate "brake torque management" this diasbles a couple fo cylinders to reduce power,

if you get a tune, you wont have a problem getting it to spin up to 3rd gear

[enhancedss]

Brake Torque Management is definately holding you back, not to mention the poor choice of diff ratio from factory.

As said previously get a tune done on the vehicle, this will sort it out.

Regards Brad

[XStatic64]

I need to get around to getting a tune on my car,

Want to remove the torque management BS and throttle limit

[impulsive]

burnouts in a new car, foolish.. thats how shit gets broken

[Torquative]

keeps spare parts blokes and mechanics happy tho

[impulsive]

someones gotta make them money i suppose, but im happy leaving it to others

[bigdaddycool]

there's no actual brake throttle limit i'm sure in the tuning side of things......... i know there's the cylinder cut out........... which u only seem to feel if u plant it and it kicks in........... makes an alloytech sound like a ecotech

U gotta seriously be careful tho if u ever tune this crap yourself aey......... u can do damage to the tranny quiet easily.

I actually left me transmission torque inhibiter enabled now.......... i had it disabled for a while but i'm at a stage now here i'm making enough torque to snap my 1 pegger.......... time for a lsd for me.

so yeh, transmission wise.......... best to take care of it. u get cheap thrills by tuning the torque inhibiter off the gearbox............ but it will eventually snap if u lower the torque reduction too low at the rev intervals.

PS. If u wanna do a burn out, go do a u-turn....... tap your throttle so the stall converter kicks in, let it off as soon as the clutch disengages.......... plant it......... Wheel spin.

I dun have to do this these days with my tuning stuff..... but tis a trick none the less

[Corbs1234]

Out of interest, is it possible to have the ECU open the throttle up faster in the alloytec's? Planting the right foot in a VY V6, the revs jump straight to the redline, but in the VZ V6, its terribly slow. (gotta love the FBW)

[andyman]

there's no actual brake throttle limit i'm sure in the tuning side of things......... i know there's the cylinder cut out........... which u only seem to feel if u plant it and it kicks in........... makes an alloytech sound like a ecotech

U gotta seriously be careful tho if u ever tune this crap yourself aey......... u can do damage to the tranny quiet easily.

I actually left me transmission torque inhibiter enabled now.......... i had it disabled for a while but i'm at a stage now here i'm making enough torque to snap my 1 pegger.......... time for a lsd for me.

so yeh, transmission wise.......... best to take care of it. u get cheap thrills by tuning the torque inhibiter off the gearbox............ but it will eventually snap if u lower the torque reduction too low at the rev intervals.

PS. If u wanna do a burn out, go do a u-turn....... tap your throttle so the stall converter kicks in, let it off as soon as the clutch disengages.......... plant it......... Wheel spin.

I dun have to do this these days with my tuning stuff..... but tis a trick none the less

brake torque management is found under engine torque management set it all across as 100,

with de-accelleration fuel cut, if you disable that, on coasting the car wont disable the injectors when on over-run, closed throttle (certain conditions), if you disable it, the say coasting down a mountain holding in 2nd gear, the car will continue to acellerate down the slope as it wont cut inkectors, it also makes the car run at roughly 7 - 10:1 afr, so really rather rich

experimenting, if you remove all torque management between engine and transmission, they struggle to shift out of first to second at wot

[andyman]

Out of interest, is it possible to have the ECU open the throttle up faster in the alloytec's? Planting the right foot in a VY V6, the revs jump straight to the redline, but in the VZ V6, its terribly slow. (gotta love the FBW)

as the bosch system is torque based it uses model to decide how much load the motor is under, throttle position, then it decides how much fuel to inject, cam angle, spark advance or retard and throttle position,

so no, unlike the ecotec with a cable throttle, the alloytec opens the throttle progressively until about 3500rpm where it goes full throttle,

you can adjust this through the torque table to increse the power down low, but it upsets a few other systems if you dont compensate

[Exidor]

I have a skid pan too!
It's very close to my home.
Conveniently located in the middle
of an intersection.
It gets plenly of use in the early hours
of the morning, particularly on weekends.
Come on down and wake up the neighbourhood!
I'm sure they don't mind.

[Corbs1234]

"as the bosch system is torque based it uses model to decide how much load the motor is under, throttle position, then it decides how much fuel to inject, cam angle, spark advance or retard and throttle position, so no, unlike the ecotec with a cable throttle, the alloytec opens the throttle progressively until about 3500rpm where it goes full throttle, you can adjust this through the torque table to increse the power down low, but it upsets a few other systems if you dont compensate"

Does this apply to Auto's as well as manuals? because i have a 6-speed manual.

[andyman]

"as the bosch system is torque based it uses model to decide how much load the motor is under, throttle position, then it decides how much fuel to inject, cam angle, spark advance or retard and throttle position, so no, unlike the ecotec with a cable throttle, the alloytec opens the throttle progressively until about 3500rpm where it goes full throttle, you can adjust this through the torque table to increse the power down low, but it upsets a few other systems if you dont compensate"

Does this apply to Auto's as well as manuals? because i have a 6-speed manual.

yes but the manual has less torque altering parameters than the auto