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Transform racing body into stock car body

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  • Member since
    July, 2017
Transform racing body into stock car body
Posted by Fredd on Monday, July 31, 2017 12:18 AM

I have been searching the Internet in need of some advice for converting racing model kits into a stock version of the car, since many cars come only in a racing (DTM/ BTCC/ Rally) version, with its bodykit already "installed". In this case I have bought the 1/24 Tamiya Alfa Romeo 155 V6 Ti "Jagermeister", which has racing (wider) fenders and side skirts I need to get rid of. The interior comes with rollbar, a simple dashboard and the two bucket seats; I guess there will be quite a lot of work to do there, but not as much as the exterior. The idea is to make a slightly tuned berlina, like a car you would see in the street. (I would really like to have a factory stock version, but it will be impossible to make because there are no kits with, say, the original dashboard, door panels, front and rear seats, etc.)
As I said, I want to narrow the body's with, but do not know really how to in order to avoid ruining the model by melting other parts of the plastic body. I think I may have to cut them with a dremel or something similar, and fill the rest with styrene and putty, but I am not quite sure how to do so.
If anybody has done something similar or has any ideas that can be useful, great.
Thank you.


I will leave some pictures of a finished model and of the factory-stock car



  • Member since
    January, 2017
Posted by 195X on Monday, July 31, 2017 11:11 AM

Hi Fredd,

  Unfortunately, your photos are not showing up. What you are talking about is called "channeling". Channeling is a technique used on full size and model cars to reduce the width of the vehicle. It is VERY difficult to pull off without changing the look of the vehicle. Usually channeling will remove certain centered details like the chrome trim in the middle of a hood. To make the car stock, this would need to be replaced after the channel is done. 

Things like fender flares and such can be ground down with a Dremel, but I urge you to work slowly and only remove what needs to go. Any underlying plastic should be left to build on top of or to sand into shape.

If I remember correctly, both Scale Auto and Model Car Magazine have done articles on chopping and channeling. You might find them if you google it but, no guarantees.

My favorite color is clear. I am also ambidexterous, I can screw up equally well with either hand. I am 53 years old and been building for most of that time. :)

On the bench... somewhere. Pink Panther show car, 1978 Dodge Magnum Charger Daytona Midnight edition SE 300. Mongrel T.

  • Member since
    May, 2017
  • From: Douglas AZ>
Posted by littletimmy on Monday, July 31, 2017 5:44 PM

So what you want to do is take a factory stock car, that was chopped up and turned into a race car, and chop it up again to turn it back to it's stock condition ?

This may not work out  the way you want it to. Might I suggest you look for a resin body to start with. You will still have some work to do but your "frustration" level wont  make you want to run into oncoming traffic.

Dont worry about the thumb print.... paint it rust and call it battle damage.

   Soon to be on the bench...







  • Member since
    July, 2017
Posted by Fredd on Monday, July 31, 2017 10:20 PM

Yes, I would basically like to remove the fender flares, which are pretty wide and then make some work on the front bumper (probably won't take a lot of effort as the rest). The thing is that I will have to fill the space left with something else, since by removing the fender flare the car will have a big mudguard for big wheels. Tongue Tied

Let's see if these images can be visible; in the last one you can appreciate the fender flares more clearly.

alfa romeo 155

alfa romeo 155

Imagen relacionada


Resultado de imagen para alfa romeo 155 tamiya


  • Member since
    July, 2017
Posted by Fredd on Monday, July 31, 2017 10:23 PM

The idea is to chop up the "extra" body parts such as fender flares and maybe sideskirts from the DTM (racecar) and try to make it look as a factory stock car -or a tuner.

As you say, it will take a lot of working time, and of course, patience.

  • Member since
    July, 2017
Posted by Fredd on Sunday, January 21, 2018 12:20 PM

Back again on the bench!

I finally got a rotary tool to work with (a cheap one, but useful though), if not, it would be a nightmare to chop out plastic parts without ruining the body. I managed to get rid of the wide fenders, but now I have to "guess" the size and precise position for the "stock", custom-built fender-mudguards, so these can be properly aligned with each other (I forgot to measure and make marks to the body before removing the fender flares with the dremel...)

Still, I found some blueprints on the internet so I could use as a reference about the size and other measures to make the "stock" fenders. I made quite a lot of printouts testing different picture sizes to match the scale of the car as much as I could, therefore I could use these as templates to make and copy the body panels I needed.

  • Member since
    July, 2017
Posted by Fredd on Sunday, January 21, 2018 12:55 PM





  • Member since
    September, 2017
Posted by Big Gary on Wednesday, January 31, 2018 3:32 AM

195x makes some good points.  This is not going to be easy.  Sectioning, (not channeling, which lowers the body on the frame) would narrow the body.  For the wheel well shape, consider grafting wheel wells from another kit that are near the correct shape. That may save a lot of putty and sculpt work. 


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