Dream Spaceframe build

Information / Questions and Discussion -
Imps and Imp based Motorsport stuff from the olden days and current
Post Reply
wiskid
Posts: 334
Joined: Tue Feb 28, 2006 11:08 am
Club Member: Yes
Car Model: 72 Imp Super & Maguire Imp
Location: Stewarton, Ayrshire

Dream Spaceframe build

Post by wiskid » Thu Oct 18, 2018 7:44 pm

If you were to build a spaceframe Imp from scratch what spec/equipment would you use?
I have a coupe frame in mind with nothing existing but the frame which was in use in the 70s I think, would the tubes be the correct spec for the MSA Blue Book now? It would have a BMW engine as the Imp engine is now so expensive to be competitive, but everything else goes.

Imp003 Clan004
Born again Imper
User avatar
colin rooney
Posts: 1457
Joined: Mon Mar 01, 2004 8:14 pm
Club Member: Yes
Location: epsom

Re: Dream Spaceframe build

Post by colin rooney » Sat Oct 20, 2018 7:04 am

Hi i have a jig for a maguire spaceframe as i made it from an original , to be able to race it in modern times as its a fresh build you have to use moden sized roll cage material , in fact im building another chassis and im looking at fitting a k series but using a hewland gearbox

col
Teddie2003
Posts: 307
Joined: Sun Feb 20, 2005 10:06 am
Club Member: Yes
Car Model: Clan Crusader & Davrian Mk6
Location: Gosport, Hants

Re: Dream Spaceframe build

Post by Teddie2003 » Sat Oct 20, 2018 2:02 pm

Hi Col,

so if you are going hewland, will the K series be mid-engine with the box at the back then?

Steve
User avatar
colin rooney
Posts: 1457
Joined: Mon Mar 01, 2004 8:14 pm
Club Member: Yes
Location: epsom

Re: Dream Spaceframe build

Post by colin rooney » Sat Oct 20, 2018 7:15 pm

yep that way easy access to the gear ratios
User avatar
brakedisc
Posts: 86
Joined: Fri Sep 26, 2008 9:19 pm
Club Member: Yes
Car Model: Clan Crusader, Sunbeam Imp Sport

Re: Dream Spaceframe build

Post by brakedisc » Sun Oct 21, 2018 11:21 am

All about the regulations......Read them, understand them if you can and come up with a design that gives you some fun.

I would go for as little steel as possible in the spaceframe, alloy extruded sections for side and front protection and as much carbon as you can afford.

Got to be a bike engine......up to 1400 sports libre is a common class which limits your choice of engine and clothe it all in as small an Imp based shell in carbon that you can get away with.

Needs to be about 350kg with over 200bhp to be competitive. A tough ask I know but that is what the law of physics suggests you will need. :D

One final thing.......get rid of a swing axle front end.
wiskid
Posts: 334
Joined: Tue Feb 28, 2006 11:08 am
Club Member: Yes
Car Model: 72 Imp Super & Maguire Imp
Location: Stewarton, Ayrshire

Re: Dream Spaceframe build

Post by wiskid » Mon Oct 22, 2018 8:47 pm

The spaceframe I was thinking of was for sprints and hill climbs only and not necessarily going for class wins, just the thrill of competing again as the road going Clan seems to have been vetoed out of contention. So cheap and cheerful.
Imp003 Clan004
Born again Imper
User avatar
brakedisc
Posts: 86
Joined: Fri Sep 26, 2008 9:19 pm
Club Member: Yes
Car Model: Clan Crusader, Sunbeam Imp Sport

Re: Dream Spaceframe build

Post by brakedisc » Sat Oct 27, 2018 6:54 pm

Spaceframe Imp would surely be in the sports libre class. Clan would be the same so why not make it comply with the rules and go and have some fun. Who knows if one Clan appeared perhaps others would follow. :D
Post Reply