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johnzx6
Non Member
United Kingdom
13 Posts |
 Posted - 21 Feb 2011 : 20:22:38
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could anyone please tell me if i build my own
slingshot frame,to get it tagged do's it have
to completely made of cds(seamless)tube,or the
motor plate back,i've also heard it only has
to have a cds roll bar.any information welcomed,
cheer's johnzx6. |
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teamtwisted
WB Member
516 Posts |
Posted - 22 Feb 2011 : 13:15:19
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Hi John,
For a slingshot tThe drivers compartment area needs to be to the spec. That includes everything from the motor plate back including side rails, top and bottom hoops, all the cage, uprights, floor crossmembers etc. Get the MSA tech rule book (about £10) and/or the racer club book, and it describes all you need for a taggable compartment.
It's peculiar because although you will hear CDS everywhere it never states it has to be CDS, just mild steel tube of the correct dims, but everyone uses CDS as it's readily available and better than welded etc. From memory, the min gauge for mild steel CDS is 3mm, and the tube sizes are all in the drawings.
If you want to go further/faster then the SFI regs are avaialble from the US for about $50 and are an interesting read. Likewise you can buy plans from Mark Williams and companys like that which are informative too.
But, for an 8.50 slingshot you only need the lower spec as per MSA book etc.
References to roll bars maybe referring to door cars.
Cheers,
Dean.
p.s. what you do from the motor plate to the front wheels is upto you! but it has to pass the 'general' reg section too. I'm sure any of the MSA scrutineers would also be happy to advise you on any details.
www.teamtwisted.co.uk
www.belle-designs.co.uk |
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johnzx6
Non Member
United Kingdom
13 Posts |
Posted - 22 Feb 2011 : 17:52:26
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cheer's dean,
it's appriciated,at the minute i'm only interested
in RWYB,but i'd be daft to skimp on safety and i mite get the racing bug,cheer's john. |
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cunningplan
WB Member
United Kingdom
680 Posts |
Posted - 22 Feb 2011 : 23:15:56
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quote:
Originally posted by johnzx6
cheer's dean,
it's appriciated,at the minute i'm only interested
in RWYB,but i'd be daft to skimp on safety and i mite get the racing bug,cheer's john.
As Dean said, its only the driver cell which gets checked for a tag, but even though in front of the engine plate is up to the builder, we (As in scrutineers) dont think 1 mm exhaust tubing would do.
"I'm only interested in BWYB" to be honest, I cant see the point on building a car and not doing it to spec in the first place, at least you can enter MSA meetings if you do get hooked or got a more of a chance selling the car if you dont. |
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johnzx6
Non Member
United Kingdom
13 Posts |
Posted - 22 Feb 2011 : 23:49:17
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cheer's,i've been on the msa website looking for the blue book,
the only one similar is the msa yearbook 27 quid,is this it or
do you have to get it with your licence,sorry for so many question's
cheer's john. |
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cunningplan
WB Member
United Kingdom
680 Posts |
Posted - 23 Feb 2011 : 09:29:34
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| dont bother with the MSA blue book, there is nothing in there about drag racing frames, all the information you need if in the Drag Racing year book (White book) which can be obtained from APIRA or SPRC or you ask someone who has a out of date one (Chassis have been the same for about 5 years now) (I have already given mine away) |
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hotrodder
Non-Member
United Kingdom
126 Posts |
Posted - 23 Feb 2011 : 10:11:20
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| Id speak with Roy Wilding, he supplied us with plans and lots of advice and we built our own (Dorris Dormouse) and are now running in the 8's :-) |
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johnzx6
Non Member
United Kingdom
13 Posts |
Posted - 23 Feb 2011 : 19:18:08
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cheer's for that,i phoned santa pod for the white book,they
did'nt have the 2011 book yet,so posting a 2010 one free of
charge,when i become a member i'll get the new one.
thank's to all who gave advice,hopefully i'll be joining
you at the strip soon,cheer's john. |
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slingshot frame
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