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low toque down low?

Escape-The-Fate

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hey all, i recently bought my '05 vz exec and was just wondering comparing the engine to my old vt (ecotec)..it had an exhast and that was about it no extractors or nothing...the vt seemd to have more torque off the mark..like not looking for tyre spin off the line, but just seemed to have more balls

wondering if i put an exhast and extractors, pod filter or something to open up the airbox would it change the torque downlow or wat..

cheers jim80
 

Kal123

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Best way to get better down low torque would be the VCM Tune or a higher set of Diff gears (3.54/3.73)

Is it Auto or Man?
 

Escape-The-Fate

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4 spd auto...vcm tune?? please explain and would almost any performance shop be able to do it..and would it be pointless without exhaust done??
 

monaro327

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the alloytec has fly by wire which means that the ecu has control over the throttle not your foot. a vcm tune removes alot of this torque management which means when you floor it off the line the throttle body will actually fully open.
 

andyman

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the alloytec has fly by wire which means that the ecu has control over the throttle not your foot. a vcm tune removes alot of this torque management which means when you floor it off the line the throttle body will actually fully open.

not technically, only 80% hehe,


you have to play with max ve flow, this controls most of the throttle touchyness - well as much as you can do with it at the moment
 

torana355

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The VCM tune will not give you the same grunt off the line as the ecotec. The alloytecs are naturally a higher revving motor and make their torque later in the rev range.
 

Ewok

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However still 0-100 you won't have ANY trouble whatsoever dispatching an ecotech. The alloytech's hit torque just after 2000rpm and then go hard from there on. Anyone else who tells you different or tries to tell you different is a fkn idiot and has no idea what they are talking about. I know for a fact, I used to own a VS S2 ute w/ extractors zorst and CAI, yet my VZ SV6 sedan still makes 0-100 faster and I have never been beaten to 100 by ANY ecotech or pre alloytech NA motor :) (unless they have had some work done to it of course.)
 

Escape-The-Fate

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ok sweet, anyone know average price on a vcm tune..and still would it be pointless without and exhaust or be fine with the stock exhaust?
 

Ewok

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The going price seems to be $900 AUD. Usually a good idea to have zorst and cai etc sorted out before the tune else you have to get it retuned :) Should be OK with stock exhaust though with a good exhaust system on, will sound better and breathe easier also.
 

andyman

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i know for a fact my wagon slaughters vn and vs sixes off the mark, if it does that, i cant imagine a vt would be any quicker
 
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