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07-13-2020, 07:19 PM | #1 |
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Join Date: Sep 2010
Posts: 153
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Subframe / Sub Rail Question
Why would a roadster be different from say a sedan or any other body style? I'm new to the A building . Like to learn about the build. Txs
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07-13-2020, 07:29 PM | #2 |
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Join Date: May 2012
Location: Hat City (Danbury CT)
Posts: 647
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Re: Subframe / Sub Rail Question
Model A frame diagram
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07-13-2020, 08:27 PM | #3 |
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Join Date: Sep 2010
Posts: 153
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Re: Subframe / Sub Rail Question
I see diagram says Passenger Car and pick up I know frames are the same but I was told a sub rail and subframe are different for roadsters If that's the case what is different
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07-14-2020, 09:00 AM | #4 |
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Join Date: May 2010
Location: Long Island, NY
Posts: 3,470
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Re: Subframe / Sub Rail Question
The bodies have base rails that are unique to the various bodies. For example, the 190A Victoria & 400A Convertible Sedan have wood body sub-rails whereas a Coupe and Roadster have integral metal sub-rails. The body sub-rails lay on top of the metal frame. The frames for the Model "A" are basically the same with the exception that some a variation in brackets. The "AA" models have different frames that are longer.
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Bob Bidonde |
07-14-2020, 02:21 PM | #5 |
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Join Date: Sep 2010
Posts: 153
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Re: Subframe / Sub Rail Question
Bob,
So I guess my question.I know someone that may have sub tails for a sedan . Can I use them on a roadster build ? |
07-14-2020, 02:45 PM | #6 |
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Re: Subframe / Sub Rail Question
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07-15-2020, 08:38 AM | #7 |
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Join Date: Jun 2010
Location: San Antonio, Texas
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Re: Subframe / Sub Rail Question
The cars with steel sub-rails have similarities since they have the same toe board support structure and cowl up front for the most part. A study of the difference between a coupe body and a roadster will answer a lot of questions. The open roadster has the belt line down lower than a coupe and uses short doors both vertically and horizontally. This makes the rear quarter panel longer for the roadster than the coupe. Even though they use the same deck lid, a person will notice that the curvature of the rear quarter in different than the coupe due to the lower belt line.
The rear body rail is the same between the coupe and the roadster and some of the cross channels are the same but the seat riser had to tie into the body to give the quarter panels more vertical stability since there is no roof to support anything. All these things affect the sub-rail channels. |
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