985cc Turbocharged Nova Sprint Car

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Originally Posted by BRoadGhost

Having seen video footage of the man behind amuse lift one of their titanium S2000 systems with one finger I'ud say well less than 50% of the weight of steel.

The system on Pepe is entirely titanium, but it was only ever built & fitted on / around the car so can't confirm it overall…

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The exhaust isn't structural though and most of the weight of a steel system will be to allow for some corrosion, which titanium doesn't suffer from as badly. In a structural piece, iirc your average titanium allow is about half the density of steel but not quite as stiff or strong, so it ends up at roughly 2/3rds the weight for a like to like component beefed up as necessary, obviously a component can be designed better than standard though to further improve the weight loss.

Yeah not sure how effective it'ud be at not being "excessively loud" for a street legal car ~ I ran just a single titanium back box last year to get it MoTed & it was an almighty F A I L [amongst other things!]

If it's for something that can't be used on the Queen's Highway then fcuk it who cares ;P

hill climbers have to pass noise tests.......colin is using titanium for structural components......

Hi Colin, sent you an email.

Heres some info about titanium, its in the email but thought it may be intresting to some folk:

Density of pure iron = 7.8 g/cm-3
Density of pure titanium = 4.5 g/cm-3

Mild steel is basically iron + a bit of carbon, which itself is less dense than iron, therefore density of m/steel is about 7.2 g/cm-3.

Aerospace Ti (what we use) is Ti6/4 which is 6% Al + 4% vanadium.
Al has a density of 2.7 g/cm-3
V has a density of 6.1 g/cm-3

Therefore the density of pure Ti that is approximatley the same as Ti 6/4 is 4.5 g/cm-3

For comparison purposes the density of water is 1 g/cm-3


Ste

Haven't updated for a while, but things have been happening with my Nova.

Last weekend I was at Gurston Down hillclimb with it for its first proper competitive outing (having crashed and broken the steering rack on the previous event, very early in the day!).

This time I ended up 4th in Class, up against the seriously quick Minis, but within 1.5 seconds of the Hill Record, so I was pleased with that, especially as I was using slicks that are certainly 5 years old, and quite possibly older than that.

After the event I've started a programme of modifications aimed at improving performance but without spending a lot of cash.

The rear dampers are feeling very tired, so they've been removed;

http://i285.photobucket.com/albums/l...cort/002-9.jpg
http://i285.photobucket.com/albums/l...ort/003-11.jpg

And I am having some new ones custom built, with alloy bodies and double adjustable damping. Photos to follow of those when I get them back, which will hopefully be next week.

I've also managed to lose another couple of kg's out of the car by cutting away superfluous metalwork, within the bounds of the regulations.

I don't think I'll be able to afford new tyres before the next event, so I will just have to try harder still to beat the Minis.

My plan to have a titanium rear axle built has suffered a major setback, the quote came back, and at a price of £1,675 it's a little difficult to justify right now!

thats a stunning cost..... but custom fab is costly...

what about getting more hp out of it, or is off the line traction an issue on the tyres you have?



hows the diet going??;)

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Originally Posted by mowgli

thats a stunning cost..... but custom fab is costly...

what about getting more hp out of it, or is off the line traction an issue on the tyres you have?



hows the diet going??;)

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More horsepower really isn't an option on the current engine. 985cc, standard crank, rods and pistons and 1.5 bar of boost makes it marginal already..........

My personal diet is actually having some effect, it would be a lot better if it wasn't for the Devil that is alcohol though.

my diet is working, until i get hungry, which is often

Get me to drive it? Kilos lost instantly lol

from you sh1tting or from knocking bits off????