Roadster book updates

[alga]

Spot on, Phil.

Add 8 kg for the tyre and at least 5 for the wheel.

Update: above was a message from Talon in essence stating that weight savings available from the chassis are negligible compared to the stuff that bolts to it.

[jateu01]

Thanks talon you may have saved me hours of research . Has anyone actually stressed the frame to see what it can take . And I don't mean put it into wall. Any advice on v6 power plants ! .

Many thanks

J

[vmax1974]

The way I see it is that the strength of the chassis is in relation to the ability of the person fabricating it. You could be the best computer tech in the world but if your welding skills are not up to the task of welding the chassis the data gained on the computer would be rendered void as the chassis would be better held together with blue tack or chewing gum

[jateu01]

100% agree vmax, although I believe the kit car concept was to open up a new hobby to every one . Negativity only get me driven to finish what I started. It looks like the weight issue is more to do with components than chassis. I hate it when I get the elite attitude from members lol. The point of my exercise is to one build my own chassis but also to see if it can be bettered ! Is that wrong? The only way I can find this out is one spend millions on research or abuse members for there advise .

Many thanks

J

[mopple]

jateu01 a places of interest for you could be LocostUSA and Locost Builders UK forums. There are some quite long topics about seven type car chassis rigidity, weight FEA calculations etc.

[Stot]

Dont the Aussies or NZs have to put their chassis through a stress test before it can be made into a car?

Cheers
Stot

[voucht]

Originally Posted by jateu01

So please think before you reply and be respectful not cocky !

Have I missed something? I don't see anything disrespectful in the previous posts

[skov]

Originally Posted by voucht

Have I missed something? I don't see anything disrespectful in the previous posts

I've been thinking the same thing!

Originally Posted by jateu01

I hate it when I get the elite attitude from members

I'm struggling to see any kind of elitism either!

I'm very confused

[jason 82]

Should get Ash on here if you are looking at strength of the chassis. I am sure that he said in a previous post that he has got 150 mph out of his Saab turbo powered car ( think the thread was talking about little wings on the nose cone to aid downforce ). A 7 is hardly an aerodynamic masterpiece, so if it can with stand that kind of force acting upon it, then that chassis design has been tested well enough in my eyes. I am using an mx5 1.8 in my car so it suits my needs. A 7 correct me if I am wrong, was designed to give amazing acceleration & the ability to handle like a train. Well that's my interpretation of a 7 any way. I don't think anybody was taking a pop at you, but the more information you can put in your posts, the better. That way everybody is on the same wave legnth.

[TheArf]

The easiest way to reduce weight in these cars is to stop eating the pies

hear speaketh the chunky fat bu**er

Arfon