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  1. #1
    Join Date
    Jul 2005
    Location
    graveyard
    Posts
    1,770

    NOW Ive got the Grin

    Just back from having the engine tuned a little.

    First run on the rolling road measures
    47.1 Bhp Engine power
    38.0 HP at the wheels.

    After adjustment

    141.1 Bhp Engine
    121.3 Hp at the wheels
    172Ibs/ft


    Totaly different car on the road.
    Very spooky and nippy now and serious adjustments have to be made to the right foot.

  2. #2
    Join Date
    May 2005
    Location
    Near Guildford, Surrey, England.
    Posts
    1,465
    Now that was a good tune up Tony, still he had a nice starting point to improve upon, it must have been running like a bag of spanners before then.

    Do you know what he did to it?

    You're probably getting far better mpg now too, looks like money well spent.
    enjoy!
    Graham.
    Share your Cobra knowledge here on the Sumo Wiki
    ...and don't forget, building cars is meant to be fun!!

  3. #3
    Quote Originally Posted by realyweely View Post
    Just back from having the engine tuned a little.

    First run on the rolling road measures
    47.1 Bhp Engine power
    38.0 HP at the wheels.

    After adjustment

    141.1 Bhp Engine
    121.3 Hp at the wheels
    172Ibs/ft


    Totaly different car on the road.
    Very spooky and nippy now and serious adjustments have to be made to the right foot.
    Are you sure he didn't swap the engine?
    A 200+% increase in bhp at the wheels is a very impressive tune up. I can only assume it was in a pretty dire state of tune beforehand.

    Charles

  4. #4
    Join Date
    Jul 2005
    Location
    graveyard
    Posts
    1,770
    It actually sounded OK but when you floored the accelerator it would flatten out at around 4500
    When overtaking at 70 MPH you never knew whether it would make it or not, now it bangs your head back.
    Major problem was that the Timing was retarded right back, one plug, though new was playing up a little also.

    Now I just have to adjust the airflow meters to bring the idle back a little.

    I wont need a loan every month for fuel now!

    Best 75 I ever spent

  5. #5
    Join Date
    Feb 2007
    Location
    West Sussex
    Posts
    8,645
    can you recommend the tuner and post his details?
    Crendon Chassis No.49
    Huddart FE428 + toploader

    Not listed in the Shelby Register.

  6. #6
    Join Date
    Sep 2001
    Location
    Walsall, Cultural Centre of the Universe
    Age
    71
    Posts
    1,519
    What sort of engine is it?

    David
    David Large
    Bald Surfer with a BRA 289

  7. #7
    Join Date
    Jul 2005
    Location
    graveyard
    Posts
    1,770
    Heres the firm I used
    http://www.slarkraceengineering.co.uk/

    He charged me 55 per hour for the work and use of the His Rolling Rd
    Ill post a scan of the output chart when I get time

    And the engine is a pretty bog standard Ford 2.9 V6

  8. #8
    Join Date
    Jul 2005
    Location
    graveyard
    Posts
    1,770
    Heres the Dyno printout

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