Page 1 of 3 1 2 3 LastLast
Results 1 to 10 of 26

Thread: Carbie 4AG

  1. #1
    Senior Member
    Join Date
    Jan 2009
    Name
    Alex
    State
    QLD
    Location
    St Lucia
    Country
    Australia
    Posts
    899

    Default

    Just wondering about the benefits and drawbacks of twins carbies on a 4AGE if theyre tuned properly.

  2. #2
    Bad Email Address
    Join Date
    Sep 2005
    Posts
    392

    Default

    Benefits:
    Less wiring
    If your changing engines 4ac -4ag , its cheaper than converting to EFI


    Cons:
    More fuel consumption
    Regular tuning (you might want to use bike carbs)
    Can be a pain to drive through traffic


    As they say "OLD-SKOOL"

  3. #3

    Default

    One of my mates is running twins on his 16v, hes found that fuel consumtion isn't as bad as everyont makes out, but the tuning is... you have to retune them evertime you change altitude so yeah.
    Also, putting twins on a EFI engine is very illigal (in NSW anyways)
    Linkages can be almost as expensive as getting a manifold, which arn't to hard to find, but speaking from first hand... they are very cool and quick

  4. #4
    Oldschool Member
    Join Date
    Mar 2005
    Posts
    224

    Default

    CAN be cheaper if you're lookin at going bigger cams, ported, polished etc etc.


    they sound hot.

  5. #5
    Senior Member
    Join Date
    Jan 2009
    Name
    Alex
    State
    QLD
    Location
    St Lucia
    Country
    Australia
    Posts
    899

    Default

    Are there any performance benifits?
    And how often do they have to be tuned and what kind of altitude changes do they have to be tuned for?
    Does anyone know if its the same in QLD?
    How so?
    Also the E in 4AGE is efi isnt it? so would that make it a 4AGC?

  6. #6
    Bad Email Address
    Join Date
    Sep 2005
    Posts
    392

    Default

    I did not say that the consumption is bad
    I said that theres more fuel consunption

    I did not say putting twins on EFI
    I said that, a 4ac is carby and converting it to 4ag costs around an extra $700 to $900 for all the EFI wiring, but you can run without EFI by installing carbs.


    Carbs sound great, but a high reving engines with a Sports injection KIT sounds allot better.

  7. #7
    Senior Member
    Join Date
    Jan 2009
    Name
    Alex
    State
    QLD
    Location
    St Lucia
    Country
    Australia
    Posts
    899

    Default

    The engine Im thinking of is
    100kw 4AG
    rebuilt to include a ported and polished head
    balanced crank and conrods
    high compression pistons
    electronic fuel pump
    Ivan Tighe racing cams
    custom made tuned length extractors
    twin 42mm side draft Webbers

    Apparently it revs out near 9000rpm.

  8. #8
    Bad Email Address
    Join Date
    Sep 2005
    Posts
    392

    Default

    You will get more horsepower out of 4ag with this


  9. #9

    Default

    Chill dude, I wasn't having a go.

    42mm? Try to find 45mm!!!

    Performance benefits, about the same as a well tuned quad efi... the biggest drawback is that in a locked curve, the power band is extremely narrow, so a computer to run the advance can be quite expensive... so in the end, you might as well go quads on EFI

    Check this out:


  10. #10

    Default

    I know the intake has alot to do with the HP, but wouldn't the engine specs dictate the HP output?

Page 1 of 3 1 2 3 LastLast

Similar Threads

  1. efi too carbie in a hachi
    By dehney in forum Technical - Questions
    Replies: 0
    Last Post: 12th November 2011, 06:55 PM
  2. open carbie
    By ke_70 in forum Technical - Questions
    Replies: 6
    Last Post: 5th December 2009, 01:01 AM
  3. needed. 4ac carbie.
    By metha in forum Cars or Parts Wanted
    Replies: 4
    Last Post: 12th June 2008, 12:14 AM
  4. Carbie or efi 4ag
    By eightsixboy in forum Technical - Questions
    Replies: 8
    Last Post: 11th May 2007, 09:20 PM
  5. 4AG Carbie celica movie
    By flamingheads in forum General Topics (No Technical Questions)
    Replies: 4
    Last Post: 13th March 2006, 07:42 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •