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Thread: 110L Plastic Fuel Tank Question

  1. 12-19-2023, 11:43 AM #1
    ibmiked
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    110L Plastic Fuel Tank Question

    Can anyone tell me if the plastic 110L fuel tank used on the Carrera RS 3.0 or Carrera RSR were designed to hold a full size spare or a collapsible? It looks like they could fit a full spare to me, but most pics I have found show a collapsible when they show any spare at all.

    If they do fit a full spare, any thoughts on if a 7" rim with 185 series tire would fit?

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  2. 12-19-2023, 10:22 PM #2
    72targa
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    In the spare parts he received with 9114609073, John Byrne had a centerlock 917 rim complete with a collapsible spare tire. Wish I had a photo.
    Peter Kane

    '72 911S Targa
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  3. 12-20-2023, 04:26 AM #3
    ibmiked
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    Wow, those would be 15 x 12 correct? Okay so I know a 15 x 7 rim will work, now I just need to know if it will with the 25.4" diameter...
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  4. 12-20-2023, 04:36 AM #4
    RickWhite
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    Photos of Jim Newton's Brunos car, with 110l tank and some serious meat lying on top, which suggests you can fit a full-size spare.

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    MBR #3926
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  5. 12-20-2023, 10:57 AM #5
    ibmiked
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    Exactly what I needed to know. Thanks. My only worry is that my car is a short hood and Jim's is a long hood.
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  6. 12-20-2023, 11:39 AM #6
    Yellow491
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    Quote Originally Posted by ibmiked View Post
    Can anyone tell me if the plastic 110L fuel tank used on the Carrera RS 3.0 or Carrera RSR were designed to hold a full size spare or a collapsible? It looks like they could fit a full spare to me, but most pics I have found show a collapsible when they show any spare at all.

    If they do fit a full spare, any thoughts on if a 7" rim with 185 series tire would fit?

    Name: PS-A-Porsche-911-30-Carrera-RS-85.jpg Views: 353 Size: 101.0 KB
    The rsr no,3.0 rs yes if it does not a oil cooler air duct.Rsr with duct had space saver.
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  7. 12-20-2023, 04:42 PM #7
    ibmiked
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    Thank you.
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  8. 12-21-2023, 11:17 PM #8
    Bert
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    Does anyone know if this plastic fuel tank has any internal baffling or a swirl pot on the bottom?

    Thanks,
    Bert Jayasekera
    1970 911T - Tangerine Orange
    Early 911S Registry #494
    R Gruppe #167
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  9. 12-29-2023, 11:50 PM #9
    Yellow491
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    Quote Originally Posted by Bert View Post
    Does anyone know if this plastic fuel tank has any internal baffling or a swirl pot on the bottom?

    Thanks,
    I dont think so,there is a copper gauze filter in the bottom at the feed terminal,my tank is full of race foam which helps reduce tank surge and i cant see inside it to confirm yes or no.Maybe contact one the repro tank suppliers and ask.
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  10. 12-31-2023, 05:16 AM #10
    geneulm
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    There is one in my car. No swirl pot built in. Mine runs mfi and I've never had an issue even at very low fuel. I think the shape of the bottom of the tank/entry and return position seems to avoid starvation issues. For a while my triumph gt6 ran on Lucas injection and I had to make a separate swirl pot to prevent starvation under any cornering/not full tank.
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