Just Commodores Forum Community

It takes just a moment to join our fantastic community

Register

Whats better? Ecotec or Alloytec V6????

Discussion in 'General' started by mattathm, Aug 27, 2012.

  1. immortality

    immortality Home of the smoky breakfast Bacon! Staff Member

    Messages:
    14,337
    Likes Received:
    2,310
    Trophy Points:
    113
    Joined:
    Apr 15, 2006
    Location:
    Sth Auck, NZ
    Members Ride:
    HSV VS Senator, VX s2 Calais S/C
    Stay away from the base model alloytec/sidi engines. my missus drove a VE omega a while back and was not impressed, said it was slower then here VS ecotec and it needed lots of revs to get it going.

    The later models which have the 5 and 6 speed transmissions make a huge difference to how a car handles. Put a 4l60e behind a alloytec and it would be a slug
     
  2. MikeCuzzy

    MikeCuzzy Jumping puddles

    Messages:
    1,355
    Likes Received:
    13
    Trophy Points:
    38
    Joined:
    Jan 29, 2010
    Location:
    Australia
    Members Ride:
    2007 VE Omega 3.6L
    My Omega has this configuration, it's not slow - but it's not fast either. It's got the same problem every Commodore since the VT has had. Too heavy for the V6/4 speed. The ratios are very big for a car these days, I can clear 65kph in first and at 100 - 2nd still has some leg left.

    4-Speed just feels abit... old fashioned? To be honest, my VE feels very similar to my old VT Exec to drive as far as the engine/box goes. Only difference is the lower end torque in the Alloytec is noticable.
     
  3. jacoada1

    jacoada1 New Member

    Messages:
    9
    Likes Received:
    1
    Trophy Points:
    0
    Joined:
    Apr 22, 2012
    Location:
    Traralgon, Vic, Australia
    Members Ride:
    VZ SVZ
    You are correct in part, The alloyec has more power, but it doesnt hit peak power until about
    6500rpm, where is the ecotec reaches its peak alot lower, and hence pulls away quicker as
    its torque curve is alot steeper. I got Powerchip to do a tune on my car, and now it destroys
    any ecotec with ease from the lights.

    So if you want power and a smooth running newer engine, go alloyec
    (i would deff recommend getting a tune from powerchip)

    If you want an easy engine to work on, (and want to charge it cheap)
    go ecotec
     
  4. Big-Al

    Big-Al Banned

    Messages:
    1,838
    Likes Received:
    12
    Trophy Points:
    0
    Joined:
    Oct 23, 2012
    Location:
    Aussie and proud
    Members Ride:
    VY SS 5.7 M6
    The Ecotech is the old boy and is a more "polished and perfected" power plant. You know what you're getting.
    The Alloytec is the new kid, it's more efficient, has longer service intervals (apparently) but has some issues such as timing chain stretch. Earlier models like the VZ are a bit of a question mark.
     
  5. Last_Warrior

    Last_Warrior Member

    Messages:
    30
    Likes Received:
    0
    Trophy Points:
    6
    Joined:
    Jul 21, 2014
    Location:
    Brasil
    Members Ride:
    98/99 VT Ecotec 3.8 V6 automatic Green
    My family has the 2 models, my car is VT Commodore 1998/1999 with Ecotec 3.8 auto 200hp and my mother´s VE Commodore 2011/2011 SIDI 3.6 Alloytec 292hp.

    I like both, the Alloytec runs more silent and has a bit lower consumption. But the ride is some like "stupid" and don´t "understand" when you ride slow or fast.
    In other hand, the 3.8 ride more nicely, it seems that the programmation of the PCM "understands" better the way you ride at moment. It responds just I expect when I ride very slow or very fast. I can´t explain...

    The ecotec 3.8 is fantastic, it´s an "jurassic" motor with a modern injection system, and the secret of VT in my opinion is the perfect perfect marriage of the 3.8 litre V6 with the relations of the 4L60E trans.

    But I like them both! Just ride both and choose what seems better to you.
     
  6. nathanVY

    nathanVY such boost

    Messages:
    1,784
    Likes Received:
    15
    Trophy Points:
    38
    Joined:
    Dec 27, 2009
    Location:
    Geelong, VIC
    Members Ride:
    2003 VY LS1 Turbo Calais, 2005 4Gen Liberty Wagon
  7. Stevee

    Stevee New Member

    Messages:
    8
    Likes Received:
    0
    Trophy Points:
    0
    Joined:
    Aug 14, 2014
    Location:
    Sydney
    Members Ride:
    MY06 VZ Executive Wagon
    cant say im enjoying the ride in my 06 VZ wagon, its a bit "incoherent" on the throttle. It sticks to speed limits well but doesnt seem to respond well via the foot unless you really put it down. So to me its sluggish low down. Highway driving its perfection on four wheels, effortless driving at 110 - 120, wants to go beyond that as well.

    Is there a way to get the vz 175 alloy tek tuned for a bit more low end throttle response without stuffing up the top end rev range?

    I had a vn with a buick v6 for about 4 years, was a good engine, plenty of leaks and overheating though, probably my fault as a young driver.
    God bless the kickdown cable!!
     
    Last edited: Sep 3, 2014
  8. TI3VOM

    TI3VOM Active Member

    Messages:
    2,281
    Likes Received:
    12
    Trophy Points:
    38
    Joined:
    Feb 25, 2009
    Location:
    Here there and everywhere.
    Members Ride:
    VT Commodore
    VN's didn't come with an Ecotec.
     
  9. Stevee

    Stevee New Member

    Messages:
    8
    Likes Received:
    0
    Trophy Points:
    0
    Joined:
    Aug 14, 2014
    Location:
    Sydney
    Members Ride:
    MY06 VZ Executive Wagon
    my bad, meant to say buick v6. Edited post. I havent owned a commodore in over 15 years. Been driving 4 cylinder crap.
     
  10. Brisbarnz

    Brisbarnz Active Member

    Messages:
    520
    Likes Received:
    36
    Trophy Points:
    28
    Joined:
    Feb 3, 2014
    Location:
    Brisbane
    Members Ride:
    Vh sle
    When shopping for a second car I choose the vy solely on having an ecotec.
     
  11. Tim747

    Tim747 New Member

    Messages:
    6
    Likes Received:
    0
    Trophy Points:
    1
    Joined:
    Sep 23, 2014
    Location:
    Melbourne
    Members Ride:
    VL Calais and VS s pac 96
    Hi guys, I new to the whole Forum thing and I am 19 on my Green Ps.

    I too am deciding on Ecotec ( VS, VX) or Alloytec (VZ SV6)
    After reading this and a few other threads, my conclusion is I prefer the look of a VZ but couldn't fork out thousands for the Timing chain repair.

    And a VS is getting really old or too hard to find a good one, and I simply not too interested in a VX but it is still better than driving my 87 Laser :p

    Also where can i post my dilema between choosing either of those 3 models and laying out their goods and bad points to consider? What should I call it?

    -I have been researching on the website for awhile too
     
  12. delcowizzid

    delcowizzid on holiday

    Messages:
    6,877
    Likes Received:
    346
    Trophy Points:
    83
    Joined:
    Jul 8, 2008
    Location:
    NZ
    Members Ride:
    в∞ѕтεכ √&
    if your young and dont have lots of money for major repairs stick with anything ecotech or buick plenty of spare engines and boxes to be had for a box of beer and cheaper and easier to mod. i find the alloytecs too hit or miss .sludge problems killing bottomends, porous badly cast alloy heads leaking water into the engine, ecu's that just loose an injector driver or coil driver out of no where or the fuel gauge and start inhibit part of the ecu just up and dies and need unlinked and linked by holden when the ecu is replaced, timing chains are hit or miss and a lot of people have been getting the software update from holden as a tempory fix for the timing chain error code and selling them knowing the light is soon going to come back on and cause a sudden loss of wallet thickness.
     
  13. acarmody

    acarmody Donati..Whoa Green

    Messages:
    5,920
    Likes Received:
    43
    Trophy Points:
    48
    Joined:
    Apr 29, 2007
    Location:
    Brisbane
    Members Ride:
    VX Berlina
    Why no VY?
     
  14. commodore665

    commodore665 expat Saffa

    Messages:
    2,718
    Likes Received:
    1,144
    Trophy Points:
    113
    Joined:
    Dec 30, 2011
    Location:
    New Zealand via Cape Town
    Members Ride:
    2005 SV6 & Alfa Romeo 156 V6
    Go with what your heart desires
     
  15. Nut Kracker

    Nut Kracker Donating Member

    Messages:
    4,760
    Likes Received:
    124
    Trophy Points:
    63
    Joined:
    Oct 18, 2012
    Location:
    Echuca Vic.
    Members Ride:
    VT SS 304ci (195i)
    My heart desires this.............Pagani Zonda

    [​IMG]
     
  16. Rumplestiltskin

    Rumplestiltskin Member

    Messages:
    36
    Likes Received:
    2
    Trophy Points:
    8
    Joined:
    Oct 28, 2012
    Location:
    redlands
    Members Ride:
    vs ss
    I would go for an alloytec that has been looked after. Regular servicing, low km's , old guy owned it. I have had my vz now for two years. I tow a trailer with it everyday, have put around 40 thousand km's on it and have never had a thing go wrong with it.

    IT has been way less drama than the ecotec I had.

    Just use a quality oil when servicing. They're a very easy motor to work on to.

    I know some people have had problems with them but any motor can give you problems at the end of the day.
     
  17. Sabbath'

    Sabbath' Redblock Jesus

    Messages:
    6,105
    Likes Received:
    1,050
    Trophy Points:
    113
    Joined:
    Jul 3, 2006
    Location:
    Vic
    Members Ride:
    80 Series// MK5 GTi//
    Sure, gearbox removal to replace the thermostat, so easy to work on at home.
     
  18. Rumplestiltskin

    Rumplestiltskin Member

    Messages:
    36
    Likes Received:
    2
    Trophy Points:
    8
    Joined:
    Oct 28, 2012
    Location:
    redlands
    Members Ride:
    vs ss
    I done mine in a few hours? and replaced every hose?

    You don't need to remove the gearbox. remove inlet manifold and theres enough room.:smoking:

    I don't understand what all the hype is about the thermostat.
     
  19. commodore665

    commodore665 expat Saffa

    Messages:
    2,718
    Likes Received:
    1,144
    Trophy Points:
    113
    Joined:
    Dec 30, 2011
    Location:
    New Zealand via Cape Town
    Members Ride:
    2005 SV6 & Alfa Romeo 156 V6
    Well from my own experience , the Ecotec is a lot easier to work on compared to the Alloytec ,
    but , in my old VX I had the follwing mods -
    Cold air intake
    high ratio rockers
    69mm throttle body and tuned PCM
    extractors with full 2.5 inch exhaust .

    and my stock VZ SV6 , is still more powerful even before I did some mods to it.
     
    Last edited: Sep 29, 2014
  20. Tim747

    Tim747 New Member

    Messages:
    6
    Likes Received:
    0
    Trophy Points:
    1
    Joined:
    Sep 23, 2014
    Location:
    Melbourne
    Members Ride:
    VL Calais and VS s pac 96
    I don't know the difference with them. But they have the Ecotec motor right? And if they look the same, and if smeone can tell me the differnce between them...then I'd consider a VY for under 5k driveaway. And I shouldn't say it but Im looking at Cleaner and lower kilometeres Ford Xr6's and run it on gas one day. Im sorry, I like all cars...just looking for best all rounder with costing in mind for the long run.

    EDIT: Excuse me but I didn't thank everyone for posting their input, thank you.
     

Share This Page