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If you dig altereds and gassers, I need your opinions. 38 fiat topolino

Discussion in 'The Hokey Ass Message Board' started by maddog, Apr 2, 2007.

  1. maddog
    Joined: Sep 3, 2006
    Posts: 695

    maddog
    Member
    from So Cal

    I picked up a 1938 Fiat Topolino body, T bucket chassis some wheels and tires. Put that together with some stuff I had laying around and I have most of the making of a nice little street rod.

    I want the look to be that of the 60's altered drag car but still drivable. No blower, baffled zoomies, skinny fronts and fatties in the rear.

    Not having a lot of room in this tiny body, I have decided to model it in 3D to get things organized prior to taking up the floor space to build it.

    The jpgs below are from the model and are dimensionally acurate to .ooo1. I can change any location of anything and have been doing that for days. Just cant settle on the wheelbase and location of the motor.

    I would like to hear you opinions as to how to organize things such as:
    Location of motor - how far back?
    How far out to push the front end?
    how low to the ground ? up in back? up in front?
    Radiator in the front or back?
    Narrow the ford 9" rearend? stock width shown

    Look at the pics and tell me what you like and dont like, what you would do and why. Many of you have seem many more of these than I have.

    Thanks for the help.
     

    Attached Files:

  2. jlibert
    Joined: Mar 23, 2007
    Posts: 105

    jlibert
    Member
    from fresno

    you probably need to readjust the bracket on the pass. side front axle. A little bigger tire in the back, and bring the front end back in just a bit. Just my worthless opinion.
     
  3. Bort62
    Joined: Jan 11, 2007
    Posts: 594

    Bort62
    BANNED

    Your drawing is accurate to a ten-thousanth? Damn did you put the whole car in a DMM or what?

    ....
     
  4. maddog
    Joined: Sep 3, 2006
    Posts: 695

    maddog
    Member
    from So Cal

    That bracket has been fixed. didnt even need a torch. That was an early picture.

    Front axle about at the bottom point of the grill? or just in front of the grill?
     

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  5. 2manybillz
    Joined: May 30, 2005
    Posts: 843

    2manybillz
    Member

    If you want a '60 altered look get the nose of the body up higher and narrow the rear to bring the wheels partly under the quarters. The front axle needs to be just behind the bottom of the grill.
     
  6. MoPer38
    Joined: Feb 10, 2007
    Posts: 26

    MoPer38
    Member

    using Mondellos fiat for reference:

    Location of motor - how far back?
    traditionally, the valve covers would be nearly against the firewall, just ahead of the windshield. (assuming a big block)

    How far out to push the front end?
    centerline of front axle located aprox. 4" behind front grille

    how low to the ground ? up in back? up in front?
    bottom of rocker panels level with centerline of front wheel

    Radiator in the front or back?
    front would be more practical, but it would be cool if you could hide it elsewhere.
    Narrow the ford 9" rearend? stock width shown
    Yes, narrowed. Guessing with a 12.5 wide tire, half of the tire tucked under the body as measured at the rocker panel. Probably a ten inch rim with 4" of back spacing.
     
  7. maddog
    Joined: Sep 3, 2006
    Posts: 695

    maddog
    Member
    from So Cal

    No. I faked the body. Many people look at those pictures like they are cartoons not realizing that they are extremly acurate and can be used by cnc machines for making parts. Just trying to communicate that.

    I am trying to get a model of the topolino body drawn by an italian car designer but havnt been able to reach him yet. I wont take the time to do that, my fake is good enough to get the idea.
     

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  8. jlibert
    Joined: Mar 23, 2007
    Posts: 105

    jlibert
    Member
    from fresno


    like 2manybillz says, just behind the bottom of the grill. Awesome start...
     
  9. old beet
    Joined: Sep 25, 2002
    Posts: 5,750

    old beet
    Member

    Get a NHRA rule book, circa 1963. If I remember rite? Engine location was: Farthest front spark plug could not be set back further than 25% of wheelbase. Or somthin like that. They all had the same look cause of the rulebook....OLDBEET
     
  10. have to echo the 'just behind the grill' idea. In my opinion (Not that its all that useful) it gives the car a better look. But hey, your car do what you like man!
     
  11. I like the modeling. What software did you use?

    Don't those bodies have a spare tire well in back? Maybe you could put the radiator in back and use the well for the fan and/or as an exit for the air.

    Thanks,
    Kurt
     
  12. Omega
    Joined: Jul 11, 2006
    Posts: 874

    Omega
    Member
    from Mass

    Maybe these images can help you.
     

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  13. maddog
    Joined: Sep 3, 2006
    Posts: 695

    maddog
    Member
    from So Cal

    I am using solid edge.

    Thats a great idea about using the spair tire well as an exit for the air from the radiator.

    Thanks
     
  14. maddog
    Joined: Sep 3, 2006
    Posts: 695

    maddog
    Member
    from So Cal

    Yes they will. I have not picked up the body yet. Took some mesurments and faked the rest. These will help me tighten up the body dimensions.

    Thanks
     
  15. maddog
    Joined: Sep 3, 2006
    Posts: 695

    maddog
    Member
    from So Cal

    I made some changes

    106"wheel base
    front axle just behind grill
    front spring over axle
    narrowed rear end
    took z out of frame

    The advice you guys have is very usefull, keep it coming.

    BTW the changes (I just started over with a few part modifications) took about 45 min. I use to do it with a cutting torch and a mig welder.
     

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  16. 2manybillz
    Joined: May 30, 2005
    Posts: 843

    2manybillz
    Member

    You got it now - start building. One thing on your drawings, the rear wheels are a little far forward and the tail is a bit tucked in compared to the actual car. Won't matter if you mock up the real stuff.

    The front end attitude looks perfect to me.
     
  17. Omega
    Joined: Jul 11, 2006
    Posts: 874

    Omega
    Member
    from Mass

    Looks Great, you gonna weld up the front grill and cut back the hood? working on anything but a nailhead will be a bitch! Think Anglia style tilt nose.
     
  18. maddog
    Joined: Sep 3, 2006
    Posts: 695

    maddog
    Member
    from So Cal

    Thanks.

    Your right about the rear end being not quite right. The dimensional drawings I got in this thread and another day at the body with a tape measure will fix that.


     
  19. maddog
    Joined: Sep 3, 2006
    Posts: 695

    maddog
    Member
    from So Cal

    I'm thinking I will leave the grill and try to stuff a narrow radiator behind it. Dont know if thats possible, but would be much simpler than putting it in the back. Considering both options. Any opinions?

    Your right it will be hard to work on as it is. Thinking I will cut it just forward of the windshield and weld that part to the front opening part with the grill in it and hinge it all from the front.

     
  20. brandon
    Joined: Jul 19, 2002
    Posts: 6,372

    brandon
    Member

    the mondello fiat is a good one....mike sullivans early fiats are another favorite...nothing too stretched out....maybe 100" wheelbase or so....i have a 118" chassis for my fiat body....but would love to take about 15" out of the front......but it would be easier to just build another chassis....:D heres a couple shots i have.....that are some of my favorites....i think the geuniune suspension car is a old mondello car...neat car just the same...lol:D ..brandon
     

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  21. Maddog
    I like the look of the axle just below the grill shell if looks is what your after. I really like 'em with a straight axle instead of a dropped axle, but they also look good with a '40 axle lightened to the max.

    Anyway if you want to drive it and keep it managable you want to make your wheelbase in the 110-112 range. Move your mill back close to the firewall and shoot for a 50:50 or a 45:55 ratio. Front to back. Keep your rear tires as close to the body as possibel without digging in and watch your track width front to back. You really want your front track width to be no narrower than your rear and mayhaps a bit wider.
     
  22. Yeah, I would try the radiator in front first, and the grill looks good (Omega's example).

    Thanks,
    Kurt
     
  23. Reds 29
    Joined: Jan 16, 2006
    Posts: 472

    Reds 29
    Member

    If I remember correctly, a lot of the old Fiats at the strip had a solid mounted rear end. If you are planning on running it on the street you might want to use some type of coil-over on the rear, in which case you might want to z the frame in the rear, to give you some suspension travel. I like the front axle just behind the grille idea too, but would use a tube axle with a small drop in it, just to lower the front a bit. Just my $.02.
    Red
     
  24. brandon
    Joined: Jul 19, 2002
    Posts: 6,372

    brandon
    Member

    from bowling green 04 i think.....this guy had a cool street version....with nice proportions.....the salmon orange colored one that was floating around back in the late 90's had good lines too.......brandon:D
     

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  25. GaryC.
    Joined: Mar 24, 2007
    Posts: 1,557

    GaryC.

    Just F.Y.I.

    Topolino translated to english means "little mouse".
     
  26. maddog
    Joined: Sep 3, 2006
    Posts: 695

    maddog
    Member
    from So Cal

    A ton of good information here. Thanks all.

    Yes I will be z'ing the frame for rear suspension.

    When you talk about the track, the front being slightly wider, how many inches per side? Is this measured from the outer edge of the tires or the center line?

    How much lower is the back of the motor than the front? I know it needs to be 3 degrees off of a direct line to the yoke on the rearend but is this a matter of personal choice or is there some reason for this. It does look cool.:cool:

    Glad to read the guy walked away from that crash. Docwatson, you were there and saw that?

    Brandon, you got any pictures?

    I have the 2 front axles pictured below. I was thinking the chrome one with the drop. I dont know what the other one is.

    What is a '40 axle? I can get an axle from a friends 40 ford truck. How would this look (I havnt seen it but it has been offered to me)

    Thanks again for the education.:D:cool:
     
  27. rooman
    Joined: Sep 20, 2006
    Posts: 4,045

    rooman
    Member

    Maddog,
    actually the crankshaft should be parallel with the pinion shaft in the rear end even if it is higher or lower. Depending on the style of rear suspension that you choose a little bit of nose down or up angle on the pinion may be necessary to get everything in line when the car is in motion. Basically, leaf spring rears need more static down angle to compensate for the springs winding up under load, ladder bars need to have the pinion at the same angle as the crank or up a little as they will tilt it down as they swing in their natural arc and parallel four bars will maintain the same angle through their travel if the upper and lower bar lengths are equal.

    Doc, I am old enough to remember the Georgette Fiat the first time around. In fact I can remember buying the first issue of Australian Rodding Review with Mark's multi carb Model A on the cover.

    Roo
     
  28. 97
    Joined: May 18, 2005
    Posts: 1,983

    97
    Member

    We use the stock bodied rod to tow the race car


    http://i107.photobucket.com/albums/m291/dclothier/Nostalgia%20Drags 07/DSC03378.jpg

    http://i107.photobucket.com/albums/m291/dclothier/Nostalgia Drags 07/DSC03377.jpg
     
  29. Amazing images
     

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