Can anyone forward me a picture of the Ferrari 308 or 328 GTB/S Ferrari chassis diagram? It is likely labled as the chassis hitch points in the original factory shop repair manuels/publications. Thanks!
Here's the diagram from the workshop manual. -F Image Unavailable, Please Login Image Unavailable, Please Login
Here you are. Courtesy of Steve Jenkins's excellent website - link below. Private Ferrari Document Collection Image Unavailable, Please Login Image Unavailable, Please Login
And beware, as it is implied by the fact that there are two different drawings, the chassis before 328 n°76626; and FROM 328 chassis n° 76626 are different, the "pyramids" of tubes where the suspension pick-up points are located are not the same! regards
I'm currently working on a CAD drawing of my car's frame, a 1981 308 GTBi, as part of my personal project (http://www.ferrarichat.com/forum/308-328/359739-chassis-37313-resurrection-308-gtbi.html). If you're interested, PM me with your e-mail address and I'll send you a PDF version of it. Also, let me know what dimensions do you need to be shown, so I can print those as well. These drawings are by no means a finished product; I haven't had much time to work on them the past few months... but at least they're not the fuzzy images from the scanned manuals ;-)
You're right! from CN 76626 Ferrari put 7 degrees of antidive in the front suspension of the 328's with similar geometry to the F40 ( and probable late model Mondials) A-arm width: Front: lower: same at 325mm upper: wider by 30 mm: ? are them measuring the center of the mounting tabs in pre CN 76625 vs. outside width of pick up brackets? Rear: lower: same at 350 mm diagramed through center of mounting tabs upper: same at 250mm diagramed through center of mounting tabs the A-arm stack height is not the same front Pre CN 76625: 285 post CN 76625: 276.5 rear Pre CN 76625: 225 Post CN 76625: 260 there is a ride height difference of 1 mm (tires?) The front can be attributed to the anti-dive of 7 degrees, but I am not sure about the rear?
76626 left the construction line in February 1988, but a very small number of cars (half-a-dozen, maybe) in the numbers immediately post 76626 still had the "older" suspension and concave wheels. All cars with the "new" suspension (I call them "serie 2"...) and convex wheels could have been fitted with ABS, which was an option only on almost all markets until the end of the production. I seem to recall that, on the North American market, only the "88,5" had ABS as an option; all M.Y 1989 were fitted with it. Just for information, and at the risk of repeating myself, the change of suspension was justified, on the appropriate Ferrari's technical bulletin, by a "search for communality of parts procurements" with the "Mondial": the front suspension of the "serie 2" 328 and the Mondial are identical and the parts, notably the triangles, are interchangeable. Even the front wheels of the "serie 2" 328 and the Mondial, although not having the same numbers, are identical (same offset, etc...). Among the consequences was that ABS could be fitted as an option; a slight benefit in roadholding and handling, less "returns from the road" in the steering wheel, and a car that is a bit less tiring to drive on long distances. Rgds,
Thanks for the follow up, very interesting; you never really hear of any differences in the 328's; I owned at 1987 series I 328 GTS , but at the time never heard of any suspension differences. I am assuming the Mondial front suspension changes occurred also with the addition of ABS; would these be late model Mondials (transverse 308/328 engine) or the Mondial T (with the 348 inline V8 motor)?
The first "Mondial" with ABS were the 3,2 (transverse engine) had it as an option in end 1987, then it went standard in 1988. As for the suspension elements, the best idea would be to have a look at the Workshop Manual or part catalogue, to know if/when the elements (triangles, etc...) did change during the life of the car. But I just had a quick look at a good french magazine ("Sport Auto") of this period, which said that: "the mounting of ABS to the "Mondial" was possible without any modification to the suspension geometry, whereas for the 328 it was necessary to adopt the Mondial suspension, triangle, etc..." Back to the 328: one small mistery that remain to be solved is that some of the very-late production cars (more or less those produced in 1989) do have Bilstein shock-absorbers, whereas some others are fitted with the more traditional Konis; there seem to be no logic to this (some GTB have either Konis or Bilstein, some GTS ditto; most cars with Bilsteins seems to be in Europe) Rgds,
The post you quoted is from 6 years ago... and Daniel's profile indicates he hasn't logged on to FerrariChat in 35 weeks. You might not get a response to your request above...
