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Thread: Coil overs

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  1. #1 Coil overs 
    regular forum contributor Club Member nigel_cordrey's Avatar
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    My Marina based Roadster I converted to used coilovers on the front, and one of the shocks is end of life.

    So the time has come to replace and improve on the current setup. I could do with more travel as Im very close to the bumpstops, I'm more than happy with the spring rate and the ride it gives is a good balance between sport and comfort I'm using 120 Lb springs with about 1/2 inch of pre load. The big question is if i get a shock that is one inch shorter but fit the same spring but with 1 inch more preload will I end up at the same ride height and same ride comfort balance but one inch more travel left in the shock, hope this makes sense as it works in my head.

    What do people think
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  2. #2 Re: Coil overs 
    frequent forum contributor Club Member
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    Hi Nigel, If you don't get help here I sugest you try 'The Race & Rally Car Source Book' . When you say you converted to Coil overs what did you do? I have thought of doing this but was not madly keen on just cutting the torsion bar off and rose jointing the front of the radius arm. Going the full wishbone route is a bit scary. Have you any pics you could share?
    Cheers Dave.
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  3. #3 Re: Coil overs 
    regular forum contributor Club Member nigel_cordrey's Avatar
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    Dave

    I did it years ago, I just removed the torsion bar no need to cut it as it pulls out of the lower arm so you can go back. Then replaced the std. shock with the coilover after making a new lower bracket as it now has the carry the weight of the car. and replaced the bush on the end of the arm with a polybush, I only did it to make room for the gearbox plus it looks better. I will post photos when I take it off the jack.
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  4. #4 Re: Coil overs 
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    Cheers for that Nigel. Love the Teardrop, Who built it?
    Dave
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  5. #5 Re: Coil overs 
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    Other than remaking the lower bracket and changing the bushes did it need any reinforcing to the upper mounting?
    Also which coil overs are you using?
    Look forward to seeing you photos.
    1275 Marina/Ital based LWB Roadster in the process of a ground up rebuild.
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  6. #6 Re: Coil overs 
    regular forum contributor Club Member nigel_cordrey's Avatar
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    Quote Originally Posted by meverett View Post
    Other than remaking the lower bracket and changing the bushes did it need any reinforcing to the upper mounting?
    Also which coil overs are you using?
    Look forward to seeing you photos.
    looking at it yes, the eye on the coil over is not as wide as the std. shock, so I made shims to put inside and welded them in place, when you look closely it not pretty but it works an it was done years ago.
    IMG_20190527_183110[1].jpg
    IMG_20190527_143511[1].jpg
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  7. #7 Re: Coil overs 
    regular forum contributor Club Member nigel_cordrey's Avatar
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    Quote Originally Posted by HairyDave View Post
    Cheers for that Nigel. Love the Teardrop, Who built it?
    Dave
    I did Dave took about 18 months
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  8. #8 Re: Coil overs 
    frequent forum contributor Club Member
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    I have a similar set-up but I think my springs were 325lb from memory. They are over AVO shocks set on 5 clicks and and now have shortened Mini heavy duty rally tie bars giving 6 degrees castor.

    Finally I have a car that actually handles like it should.20190221_112312.jpg
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  9. #9 Re: Coil overs 
    frequent forum contributor Club Member David's Avatar
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    Never actually seen coil overs swapped in for the old torsion bars but looks good. Close to the Triumph setup now.
    - 9th Custodian of JRR 929D, the Triumph Vitesse based special Paul Moorehouse built prior to the Triumph based Roadster kits.
    - 8th owner of Roadster chassis number 2395. Kit manufactured 1983, first registered in 1987. Now owned by Barry!
    - Builder of chassis number 2325 (PKK 989M) in the mid 80's. Now owned by Eric & Lynne in the NE of England.
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  10. #10 Re: Coil overs 
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    Quote Originally Posted by nigel_cordrey View Post
    ... I'm more than happy with the spring rate and the ride it gives is a good balance between sport and comfort ...
    Hi Nigel,
    Good to see you, your car and van at Stoneleigh. The caravan looks even better close up and deserves a thread on its own. An article for Pitstop would also be very welcome.

    If you are happy with the current set up I would seriously consider having the units refurbished by the manufacturer. It will cost less and is possibly the least risky option.
    Paul
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