Kaitsu
Posts: 69
Registered: 6-6-2006
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posted on 1-1-2008 at 18:16
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Body holders FIA GT
The rule book says (art. 4): "Body mounts/holders modifiactions are allowed".
What does it mean? Can I make my own body holders? If I can't, how much I have to use original material from original body holders if I make
"modifications"?
Can I clue carbon L-profile to my body and screw it to my chassis? Is this L-profile part of body or is it body holder? With construction like this I
don't need original body holders of my MoMo chassis anymore. Is this according rules?
regards
kai
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tamar
Posts: 804
Registered: 5-1-1989
Location: Gouda
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Mood: A new beginning 
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posted on 4-1-2008 at 19:18
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Body Mounts, Body holders
Hello Kai
I could answer with a simple yes or no, but as the Bodymounts are one of the typical grey area's in modelracing, I thought it would be best to dig a
bit deeper.
First confusing thing is that although the body mounts are usually sold as part of a slotrace chassis, in the technical rules they are actually
considered as part of the body. Second confusing thing is that what manufacturers call bodymounts can comprise of several parts bolted together.
So to answer your question "how much I have to use original material from original body holders if I make "modifications"? " let's look
at what the FIA GT rulebook says.
4.3 Modifications - Body modifications to comply with Art 4.1 are allowed. Body mounts/holders modifications are allowed. Adding
ballast and/or removing weight inside the body to comply with Art 1.3 is allowed.
Looks like we need 2 definitions,
- what is a bodymount
- what is a modification
These definitions can be found in the General Technical Rules namely
ART.5 DEFINITIONS:
Body Mounts: Fixtures to mount a Scale Body on a Chassis.
and
ART.2 ELIGIBLE CHASSIS & PARTS/ HOMOLOGATION
2.3 Modifications: Change of part(s), material(s) and/ or shape of a described standard item is considered
as a modification. Only listed modifications are allowed. If these are made they must be done according to the description and measurements as
mentioned in the regulations.
Explenation
If use both definitions and apply them to 4.3 the "described standard item" you want to modify is the body mount.
According to the definition the bodymount is that part with which the body is directly fixed to the chassis. ( in most
cases the chassis rocker plate or chassis H-plate)
For the MoMo chassis that would be this part.
as this is bolted directly to the MoMo rockerplate
So you can also say that this is considered as the minimum original material for a MoMo bodymount. You can even modify this part, but it still has to
be used.
So bolting your L shaped profile directly to the chassis - rockerplate is not allowed.
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Whitemouse
Posts: 90
Registered: 27-4-2007
Location: Copenhagen, Denmark
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Mood: Life is GREAT!!!
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posted on 4-1-2008 at 20:06
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If you read the rules and the clarifications I believe that what you write above Tamar, is not 100% cut in stone and very much open to a certain level
of intepretation.
Now, another thing that I feel need to be adressed is the use of stub axels for the front wheels. IS THAT ALLOWED OR NOT!
I ask because there seem to be a wide acceptance that all the SLP chassised cars (more or less) has been using these stub axels last year, however the
rules state that the front axels need to be 3 mm blank axels, however they do not say whether they can be stub axels or they need to be solid
axels.
I am really glad I´m not the tech control
Cheers,
Paal Hanson
Vikings Scaleracing Club, Frederikssund, Denmark
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tamar
Posts: 804
Registered: 5-1-1989
Location: Gouda
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Mood: A new beginning
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posted on 5-1-2008 at 01:40
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Looks like we need some more rules
Hello Pål
As with all regulations, there's always room for improvement. I talked this through with Nick and Willem and we did discover that we lack a good
definition on what is part of the body and what is part of the chassis. and a desription on how a body should be attached to the chassis.
I will come back on this subject later this weekend....need to give it a bit more thought.
You question concerning the "stub axles" I have answered in this post
p.s. don't cheer to soon, about not being part of the T.C. ....during the events I plan to ask each and everyone of you to "assist" with tasks
needing to be done to run the events 
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Whitemouse
Posts: 90
Registered: 27-4-2007
Location: Copenhagen, Denmark
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Mood: Life is GREAT!!!
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posted on 5-1-2008 at 08:20
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Shit, I knew I should have kept my mouth shut.........
Cheers,
Paal Hanson
Vikings Scaleracing Club, Frederikssund, Denmark
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