308 front-end frame/valance variances? | FerrariChat

308 front-end frame/valance variances?

Discussion in '308/328' started by greg328, Mar 30, 2006.

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  1. greg328

    greg328 F1 Rookie

    Nov 17, 2003
    4,209
    Austin, TX USA
    Full Name:
    Greg
    My 1977 308 GTB is in the body shop, due to a front impact. The upper clip was only slightly bent, easily fixable. I was forced off the road and ran over a curb at about 40 MPH. Bumper was undamaged. My valance was shattered beyond repair.

    The curb was curving to the right, so the left front lower corner took the impact. My radiator was bent, and the lower box frame was also bent. The driver-side bumper support beam was tweaked a bit outboard also. (Pictures available on the Texas thread.)

    Anyway, the car is almost ready for paint--my body/frame guy has done a nice job: He welded in new stronger lower frame crossmembers, and he also supposedly moved the driver-side bumper support beam back to the proper location. This is where my question comes in...

    Can any fellow 308 owners take a look at these beams and see if they both are perfectly vertical? I'm talking about the heavier beams that angle forward from the lower main frame rails. The passenger side beam appears perfectly vertical, but the driver-side beam looks a little flayed outboard just a bit. Is this normal? The thing is, my bumper mounts up fine so both bumper beams must be spaced properly... The gap on either extreme side of the bumper appears uniform in relation to the bodywork.
    Radiator/condenser went back in perfectly.

    HOWEVER, the bumper center is not exactly centered on the horsie hood emblem! It seems to be about 1/4" too far to the drivers' side. The bonnet fits perfectly, even though cross measurements on the bonnet opening are about 1/2" different.

    My Euro valance (original Ferrari, bought it from Sean F.) is also a bit narrower than my original. The passenger side mount holes aren't quite lining up. This is also true of the new aftermarket USA valance I ordered from Ferrari Parts Exchange. (I'll keep that for a spare--changed my mind and wanted the Euro look!) My original valance measured 54 1/4" I think, from the upper grill opening, side to side. Both of my new valances are a bit shorter at 53 1/2" Can anybody measure theirs and let me get a good sampling on what's average?

    SO, MY QUESTION IS:

    Are all these variances normal for a hand-built car like the 308? I've heard stories of doors more than an inch different in length. I want to make sure everything is straight and proper on my car before they paint it!!

    Thanks for any help,
    Greg
     
  2. enjoythemusic

    enjoythemusic F1 World Champ

    Apr 20, 2002
    10,676
    Worldwide
    Full Name:
    Steven
    My answer is a firm maybe. Frankly, i tried TWO different aftermarket from aero and BOTH were off. The first one by about a full inch or more as i recall, the second one was about 3/4-inch off. Seems to me the aftermarket buys are either:

    A) relying on some type of mold that might fit some cars

    B) (according to my mechanic) pulling the unit off the mold too fast and it shrinks.

    i wish you luck finding a valance that fits, the one i finally settled with does not, but after a day of work they made it fit. Frankly, i WOULD NOT buy a front aero if their measurements are off and make them make you one to the proper dimensions. If they can not deliver, call Ferrari UK and see what they have.
     
  3. greg328

    greg328 F1 Rookie

    Nov 17, 2003
    4,209
    Austin, TX USA
    Full Name:
    Greg
    Thanks Steve. Appreciate the response.

    Can anybody provide any feedback on my frame questions?

    308 owners, now's your chance to help a brother out, for free! Just take some measurements for me, that's all I ask!

    Actually, a valuable measurement to me would be the inner distance--at the top-- from bumper support beam to bumper support beam, east to west. You'll find these on either side of the radiator, angling down to the lower frame rails.

    Much appreciated! :)

    Greg
     
  4. Newman

    Newman F1 World Champ
    Consultant Owner Professional Ferrari Technician

    Dec 26, 2001
    14,479
    Canada
    Full Name:
    Newman
    My measurements are 27-7/16" inside at the top where the bumper shocks mount as well, the angled tubes attached are the same distance apart as the shock mounts and my car has never been hit.
     
  5. greg328

    greg328 F1 Rookie

    Nov 17, 2003
    4,209
    Austin, TX USA
    Full Name:
    Greg
    Thanks Michael. Our cars suffered similar impacts....:(

    Newman, great! Thanks for the number! Just what I needed, a measurement from an undamaged car. Can you tell if your bumper is centered on the horsie hood emblem? Beautiful Boxer, btw....:)

    Can anybody look at these bumper support beams, from overhead, and confirm that they do or do not splay outward a bit? My driver-side
    beam is leaning a bit outboard. You can easily tell by the gap on the sides of the radiator--is it tapered or not....?
    Thanks,
    Greg
     
  6. Newman

    Newman F1 World Champ
    Consultant Owner Professional Ferrari Technician

    Dec 26, 2001
    14,479
    Canada
    Full Name:
    Newman
    Thanks Greg, Ill check my frame after work, make measurements top and bottom, that will tell you if they splay out or not. Mine look straight but ill measure to make sure.

    P.
     
  7. greg328

    greg328 F1 Rookie

    Nov 17, 2003
    4,209
    Austin, TX USA
    Full Name:
    Greg
    Thanks Newman!

    Big help, much appreciated:)

    Greg
     
  8. Newman

    Newman F1 World Champ
    Consultant Owner Professional Ferrari Technician

    Dec 26, 2001
    14,479
    Canada
    Full Name:
    Newman
    I measured the inside of my rails just above the rad cradles and got roughly 27-1/4". The same measurement half way up the forward angled rails and the inside of the brackets for the bumper shocks is slightly larger but the plate isnt dead on from the factory anyway. I would say for arguement sake the rails are paralell to each other as they rise up to the shock mounts. They may splay slightly but our cars probably all differ slightly anyway as they were hand made and welded by apprentices just like any other trade. Just look at the welds and that should tell you they either drank on the job or had kids do the work.
     
  9. greg328

    greg328 F1 Rookie

    Nov 17, 2003
    4,209
    Austin, TX USA
    Full Name:
    Greg
    Thanks so much Newman.

    I just measured my car and I'm getting 27 3/4" at the top near the bumper mounts. A bit wider than you. However, my bumper mount holes line up fine; The front nose of the car is centered properly, as evidenced by placing a frame measuring tool on the emblem hole and door seam, on both sides. I'm getting the exact same distance, both sides, so I guess that's what's important.

    These cars really do have a fair amount of assembly variance, don't they?


    Greg
     
  10. SIVAN

    SIVAN Karting

    Jun 6, 2004
    122
    Lake Forest, CA
    Full Name:
    Si Van Nguyen
    Hi Greg, I also have a US version 77' 308GTB . My valance measures 54 1/8" (width of grill opening, measured at top edge of the body groove), and it matched almost exactly to the width on the upper portion of the grill opening, which I think is most important. I had recently replaced the bumper shocks, so I had a chance to see the body frame in question. Mine were not perfectly even or vertical, and it is original. I had some shims too, in order for the bumper to be perfectly centered, but I did not measure it in relation to the hood emblem, so mine might not have been centered in that respect either. I don't think you will ever get it perfectly symmetrical. Just get the bumper leveled and the gaps evenly on either sides, then it will look fine. Hope this help. BTW, I think your car is a GTS and not a GTB. Here's a picture of my car with the recessed bumper. Good luck!
    SiVan
     
  11. greg328

    greg328 F1 Rookie

    Nov 17, 2003
    4,209
    Austin, TX USA
    Full Name:
    Greg
    Sivan,
    Thanks for the great info..

    The car pictured in this thread is not mine. You can see my red 1977 308 GTB on the Texas section. My car is indeed a GTB hardtop....
    My original USA valance also measures 54 1/8" or so.
    The Euro valance I purchased to install is a bit narrower, so I guess my body guy is going to have to alter it a bit.....


    Thanks everybody for all the help :) :)

    Greg
     
  12. thecarreaper

    thecarreaper F1 World Champ
    Silver Subscribed

    Sep 30, 2003
    18,076
    Savannah
    hi ya Greg , i hope it works out for you.

    my GTS was easy to fix , a little time on a frame machine and it was good as new. i kinda miss it as it was so cheap you did not worry about much when driving it. this would be a great time to drill and install the lite weight euro glass bumpers.
     
  13. greg328

    greg328 F1 Rookie

    Nov 17, 2003
    4,209
    Austin, TX USA
    Full Name:
    Greg
    Michael,
    Thanks, yes my car proved easily fixed. Damage was not significant, even though it looked and felt that way immediately after the accident.
    Curiously, Ferrari of Houston, where I first had it towed to, felt that their estimate would total it out. I removed it from them and towed it over to my buddy's body shop. Their estimate was 1/2 Ferrari of Houston's, and it's looking great so far. (They'll paint next week.) Can't wait to bring it over to Ferrari of Houston and show them! :)

    Regarding the lightweight Euro bumpers, I ruled them out for 2 reasons:
    1) I feel my front end is already too light
    2) I'll take all the safety protection I can get!

    Thanks,
    Greg
     
  14. thecarreaper

    thecarreaper F1 World Champ
    Silver Subscribed

    Sep 30, 2003
    18,076
    Savannah

    with cars this old, its usually best to avoid the name brand retail shops and use friends or recommended small shops. it would be such a waste to total these cars for such minor damage. i hope you are taking lots of pics to share ! it will be nice to see it after paint.
     
  15. 348_project_car

    Jan 29, 2006
    80
    Chicago
    Full Name:
    Dale
    This whole thread has been very uplifting, gives me a sliver of hope my bellypan damage might be fixable. If you guys could look at my thread, and render how bad I have it, I would really appreciate it. it is called 348 PROJECT CAR LIVE OR DIE
     

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