985cc Turbocharged Nova Sprint Car

Is IRS not an option Colin -can post a few pictures if it helps



Dave

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Originally Posted by Paul

Ive neve done it, but I really cant see it being too difficult to be fair.

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What was your thinking behind wanting to fabricate one? Purely to save weight?

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Originally Posted by novarally

What was your thinking behind wanting to fabricate one? Purely to save weight?

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Yeh for weight, do you think it would not be lighter? Also using RJ's on the car mounting points, setting the shocks in more vertical plane, can make it round a corsa whiteline ARB for example, that actually works?

Just a better design, I havent really looked into it too much, more just an idea between me and my mate down the yard.

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Originally Posted by fearless

Is IRS not an option Colin -can post a few pictures if it helps



Dave

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No, it's not an option withiin the 'Production' regulations that I'm bound by.

The same style of suspension that it left the factory with has to be retained.

So you can't replace a MacPherson strut with a wishbone for example. You are allowed to alter the pick-up points a little (maximum 20mm IIRC), but that's it.

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Originally Posted by novarally

For this season I've only got one more event lined up........Gurston Down on 12th September.

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damn... i'm going to the silverstone 1000 km that weekend

I think I said it before, but having a titanium beam would probably end up as heavy if not heavier getting it as stiff as the steel beam you are replacing.

Didnt you have a shell with IRS before? I'm sure you know whats involved with that setup? Maybe a Honda style setup could be grafted in at a lesser cost?

I would recommend getting the stub axles hardened IMO. Do you do the turning work yourself?

There is a company in wisbech who will make any wheel bearing you need any size :) Brt bearing iirc

They wont make ones for the f28 though lol

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Originally Posted by mk1nova_rich

I would recommend getting the stub axles hardened IMO. Do you do the turning work yourself?

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My neighbour has a lathe and is a good engineer, so I'm hoping I can persuade him to assist.

But if that fails, a friend in Bournemouth is a toolmaker and I'm sure he'll work for beer. He'd be able to do the hardening as well.

Shouldnt take too long to turn two stub axles. Ideally they want to be turned down to around 22.25mm, case hardened and then turned to size with a diamond tipped tool. Thats how i would do them