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  1. #1
    Join Date
    Nov 2003
    Posts
    2,795

    Default Locost 7 Clubman Builders ???

    Just curious if there are any Locost builders out there... am considering building one... and that space frame looks like a lot of fun to tig... I know many are MIG welded and the original Lotus 7 was gas welded..
    for those of you that do not know what that is... it is a small sports race car that is loosely based on the Lotus 7.... they are very popular in the UK and gaining popularity here,, have attached a pic... they are a very light car (about 1100lbs) so even a modest engine makes them quite quick...
    Thanks
    Heiti
    Attached Images Attached Images
    Last edited by H80N; 03-31-2010 at 12:05 PM.

  2. #2
    Join Date
    Dec 2009
    Location
    Wisconsin
    Posts
    2

    Default

    I have been wanting to build one for a while now. I figure a couple years down the road I will build one when I get better at welding and have a 220 machine. I figure I will use one of my Alfa Spiders which has a serious rust issue on the chassis.



    I forget the site but their is a big Locost forum dedicated to different ideas and setups.

  3. #3
    Join Date
    Nov 2003
    Posts
    2,795

    Default

    Cabby
    an Alfa would make a great donor... have had a few of them over the years.. first one was a 67 Duetto bought new from Knauz.. had AUSCA/Veloce cams ...& GTA Cromodora rims... still have lots of fond memories of that car... putting those mechanicals in a car 1000lbs or more lighter will make for fun driving and a lot of frowns from modern supercar drivers as they get dusted...
    the best site I have found is the locostusa site..

    http://www.locostusa.com/forums/viewforum.php?f=46

    the reason that I started a thread here is that.. the space frame is a complex job to weld... and unfortunately many of the ones that I have seen had welds that would make pigeon poop look good... we need to raise that bar..
    thanks
    Heiti

  4. #4
    Join Date
    Nov 2005
    Posts
    130

    Default

    Put me in line to build one 'someday'.

    Here's what the chassis look like -

    http://www.youtube.com/watch?v=WPNGI...eature=related

  5. #5
    Join Date
    Dec 2009
    Location
    Wisconsin
    Posts
    2

    Default

    I would have to agree with you on some of the guys welding them up do not look the most qualified. Thats one of the reasons why I want to wait a couple years before tackling something like this. The last thing I would want to do is put my life in danger because I did not do a good enough weld job.



    Some of them use simple 110v machines to weld the chassis. Though I have the Mcsorley plans and they are all 1/8" thick steel which 110v machines are rated for.



    Youtube has video of someone elses Alfa powered Locost and awhile back I saw one with a GTV6 powertrain including the rear gearbox setup.

  6. #6
    Join Date
    Nov 2003
    Posts
    2,795

    Default

    Cabby
    all the plans that I have seen including the McSorley are 16Ga so well within the capabilities of a small mig welder..
    Have attached the file "McSorley7+442e.pdf" file.. which is a stretched and widened version.. have been considering building a further stretched version with an inline 6.... the chevy vortec 4.2 looks very good... 4valves per cyl ,DOHC, 270hp stock all aluminum, foam cast....etc...
    I would say that your limitation is not the welder but your confidence in using it... I will probably not start one in the near furure.. but it looks like a wonderful project..
    regards
    Heiti

    BTW... since you already seem to have a full spare alfa driveline.....

  7. #7
    Join Date
    Dec 2005
    Location
    San Diego, CA
    Posts
    168

    Default Found this

    Guys, I found this model on a web a while back, I don't know where I found it. It is a 3d model of the chassis of a "seven". I have a pdf file that has each part with cut details, if interested let me know and I'll find it.

    Update: I have a solid model in iges or UG NX4 format, a pdf for a "stock" chassis, pdfs for something called a "McSorley7+4" and a "McSorley7+442". as I said I got them off a web site but don't remember where.

    The chassis is made from 1 x 1 16ga tube. Seems fragile to me but apparently it fine. It takes 11 20' lengths to make the basic chassis.

    Chassis.jpg
    Last edited by Fred Smith; 04-04-2010 at 02:50 PM. Reason: Added info
    Frank
    (aka Fred)
    MM200 (antique and still cook'n)
    Lincoln 160 buzzzzzz box - left to live with a nice youngster
    Dynasty 300DX
    Spectrum 625
    Chevalier Knee Mill - Bridgeport clone you idiot.
    Homebuilt tube bender - with home made dies no less
    Delta Drill Press & Grinder collection

    Needed - a bigger shop to use the stuff

  8. #8
    Join Date
    Nov 2003
    Posts
    2,795

    Default Physics of Racing

    If you are planning on building a race car, hot street car or just want to understand the physics of what makes a car handle or a driver fast.... here is a neat series of articles.....

    http://phors.locost7.info/contents.htm

  9. #9
    Join Date
    Jun 2010
    Posts
    1

  10. #10
    Join Date
    Jul 2010
    Posts
    7

    Smile

    With the Lotus 7, or the copy, locost, the idea is the lighter the better. mine has a 185 HP motorcycle engine and weighs 965 lbs.

    I MIG welded mine.
    Last edited by RAY2245; 07-11-2010 at 03:07 PM.

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