985cc Turbocharged Nova Sprint Car

Carbon fibre tube is available off the shelf colin, sure you can cut the ally down a fair bit and bond the carbon on yourself, you'd need that ally end piece on the shifter anyway for wear.

Also added to a list of ideas for mine lol

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Originally Posted by MK999

Carbon fibre tube is available off the shelf colin, sure you can cut the ally down a fair bit and bond the carbon on yourself, you'd need that ally end piece on the shifter anyway for wear.

Also added to a list of ideas for mine lol

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Yes, I see the place where I got my carbon fibre angle from also does the tube;

http://www.easycomposites.co.uk/Cate...rbon-Tube.aspx

Not too badly priced either if it can save 0.5kg or thereabouts.

Try this:

http://www.carbonology.com/carbon-fi...-c-64_146.html

Will be slightly tougher than the roll wrapped version, quite essential if you like banging through the gears, and well, everyone does :d lol

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Originally Posted by MK999

Try this:

http://www.carbonology.com/carbon-fi...-c-64_146.html

Will be slightly tougher than the roll wrapped version, quite essential if you like banging through the gears, and well, everyone does :d lol

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Thanks Mark, next time I see my car I will measure up and get some of that ordered.

Almost irrelevant that the engine is dead if you've got a carbon fibre gear lever.....

As per my PM, there was the possibly of destroking a later 1.2 from a mk2 Nova with the 12ST crank and rods.
I have checked the sizes and the 12ST has a stroke of 62.9 and the later 1.2 8v has a bore of 72mm which combined makes 1024cc.
Whether a decked blocked and skimmed head will lose you that 24cc I am not sure but may be the cheapest way of doing it as there is still plentiful supply of these engines over here. The only issue I can see is the different size of little end bearings between the two engines.

Or...

I am sure the 1.2 16v will be similar again so you could use the 12ST bits on that which wouls give you your 16v engine but not sure of the efficiency of the head and the reliability of the timing chain.

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Originally Posted by Novasport

As per my PM, there was the possibly of destroking a later 1.2 from a mk2 Nova with the 12ST crank and rods.
I have checked the sizes and the 12ST has a stroke of 62.9 and the later 1.2 8v has a bore of 72mm which combined makes 1024cc.
Whether a decked blocked and skimmed head will lose you that 24cc I am not sure but may be the cheapest way of doing it as there is still plentiful supply of these engines over here. The only issue I can see is the different size of little end bearings between the two engines.

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Sounds a feasible one Rich, but beyond my technical expertise I'm afraid.

I will certainly run it past my engine man. Decked blocks and skimmed heads sound like higher compression ratios to me though, which may not be appropriate.

The 1.2 16v is an interesting suggestion, I have absolutely no experience of that one.

Anyone got one or know anything useful about it?

Would make a cracking revvy little engine imo

What are the rules governing what engine you can use? Can you go for a different manufacturers engine? Say like a Diahatsu 1.0 GTtti engine?!?

Quote:

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Originally Posted by Novasport

As per my PM, there was the possibly of destroking a later 1.2 from a mk2 Nova with the 12ST crank and rods.
I have checked the sizes and the 12ST has a stroke of 62.9 and the later 1.2 8v has a bore of 72mm which combined makes 1024cc.
Whether a decked blocked and skimmed head will lose you that 24cc I am not sure but may be the cheapest way of doing it as there is still plentiful supply of these engines over here. The only issue I can see is the different size of little end bearings between the two engines.
.

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decking the block / skimming the head wont alter the swept volume,only the CR

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Originally Posted by Novasport

What are the rules governing what engine you can use? Can you go for a different manufacturers engine? Say like a Diahatsu 1.0 GTtti engine?!?

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The one overriding rule on the engine we have to adhere to is (in my words);

The engine block must be externally identical to that which was factory fitted to a Nova

So for example a destroked 20XE is not allowed in a Nova (but would be OK in an Astra).

Use of other manufacturer engines (e.g. an XE in a Mk.2 Escort) automatically pushes people into the anything goes 'Sports Libre' race classes, where as you can imagine there are some ludicrous machines, and not a hope of winning.

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Originally Posted by stt

decking the block / skimming the head wont alter the swept volume,only the CR

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:confused: Of course it will, it will decrease CC(Admittedly not by much unless it it decked severely but it only needs 24cc) and CR

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Originally Posted by Novasport

:confused: Of course it will, it will decrease CC(Admittedly not by much unless it it decked severely but it only needs 24cc) and CR

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It won't!
It will affect the chamber volume but not the capacity
The capacity of an engine is bore x stroke
(well pi x bore/2 squared)
The volume of the combustion chamber only affects the cr not the cc

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Originally Posted by Novasport

:confused: Of course it will, it will decrease CC(Admittedly not by much unless it it decked severely but it only needs 24cc) and CR

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Capacity of an engine is measured by it's swept volume, not the overall volume of the swept volume+the combustion chamber/squish volume whatever you want to call it.

I.E a 2000cc engine with an 8:1 CR actually has a larger total volume than a 2000cc engine with a 10:1 CR.

Edit, and area of a circle is (Pi*D^2)/4 not /2

A= pi x r2...... r =d/2.

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Originally Posted by mowgli

A= pi x r2...... r =d/2.

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isnt google ace lol

i was doing this stuff long before the effing internet....

as 2 people had had a crack at it, and both were sort of right (right answer, wrong way of writing it), i thought i'd put the correct way on just to stop an argument

ps. the big trick is remembering to convert the figures into cm first.

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Originally Posted by MK999

Edit, and area of a circle is (Pi*D^2)/4 not /2

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pi x radius squared is the area of a circle
not (pi x diameter squared) / 4

Quote:

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Originally Posted by mowgli

i was doing this stuff long before the effing internet....

as 2 people had had a crack at it, and both were sort of right (right answer, wrong way of writing it), i thought i'd put the correct way on just to stop an argument

ps. the big trick is remembering to convert the figures into cm first.

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how was my way of writing it wrong?

i put pi x bore/2 squared!

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Originally Posted by stt

how was my way of writing it wrong?

i put pi x bore/2 squared!

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bore/2 is an extra unneccasary calculation, when you can just use the radius.

and it really wants to be pi x (r²) as pi x r ² gives an incorrect answer :thumb:

You lot need to get out more.....

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Originally Posted by Mike

You lot need to get out more.....

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LOL
Just what i thought,friday night arguing about engine internals and chamber sizes,while most people are getting internally involved with women and their chambers lol

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Originally Posted by Mike

You lot need to get out more.....

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We are members of the PNG, and own Nova's. of course we need to get out more lol

Of course I could just say forget about the up to 1400cc Class, and build the Nova into the ultimate lightweight FWD car.

Especially as I notice that this is STILL for sale...........he must have been trying to shift this for a year or more;

http://touringcarspares.com/forum/vi...c.php?f=5&t=58

Only trouble is it might be just too much for the F10 'box.

What sort of cars would you be up against then Colin?

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Originally Posted by Ben

What sort of cars would you be up against then Colin?

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Off the top of my head, this sort of thing;

Force SR8 (twin Hayabusa engines)
Metro 6R4 replica with alloy blocked Cosworth engine
Puma rallycross car (600bhp)
Puma Xtrac (850bhp)
Hillman Imp spaceframed with Hayabusa engine mid-mounted
Morris Minor with Lancia Delta turbo engine, 400bhp+

So it would definitely be for fun only if I decided to go down that route, it would shove me straight into the 'anything goes' Class.

Humm i say do it! would love to see what the car would be like then on a trackday, or 1/4 times!

that engine in a nova wood be so class. but what happens say you brake it or damage the head as the old boy that done them heads don't work for swindon any more how wood you get it fixed

Or I am now (vaguely) considering a very high powered LET for it, again just for fun.

A really big power LET would almost certainly cost less than building a 1.0 turbo, and would offer a lot of smiles.

So I've spent the last hour or more trawling through old 'Cars For Sale' adverts to see what is (and was) around.

Something like the green TOTB Corsa that Chris S from Sheffield had would have made an ideal donor car!

It was registered as J60 OST, but I have a feeling that car got sold?

What about an alloy blocked XE?

Duplicate.

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Originally Posted by stt

pi x radius squared is the area of a circle
not (pi x diameter squared) / 4

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Now put both through a calculator :thumb:

Will give the same answer.

Southie should also check this since he negged me for my oh so inaccurate info which is the staple calculation for every thermodynamics and engine lecturer at my uni as it saves a step halving the radius which reduces the chance of error!

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Originally Posted by Lewis.

bore/2 is an extra unneccasary calculation, when you can just use the radius.

and it really wants to be pi x (r²) as pi x r ² gives an incorrect answer :thumb:

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No it doesn't, BIDMAS rules defines the order in which calculations are solved, brackets indices division multiplication addition subtraction, gives the same answer.

The more I sit and think about it, the more tempting it is to forget the 'up to 1400cc' Class regulations, and just bolt in an extreme power XE or LET.

I could almost certainly get the car running one of those engines at 275/300bhp+ respectively, for less money than building another 1.0 turbo unit.

I've spent some time trawling through old 'Cars For Sale' adverts on MIGWEB and the like, and something like the green Corsa LET (J60 OST) that Chris S from Sheffield had would have been an ideal donor car (sadly I believe it's all been sold now).

Great spec., and 450 or so BHP would be rather pleasant in a sub-600kg car.

That'd be insane in that shell lol Will it still be competitive in the higher classes then? And will the lowered/changed engine mounts that it currently has not cause an issue with a larger engine?

J60 used to run ten second passes all day long aswell :) that motor in your shell would be pretty damn crackers lol

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Originally Posted by Iain

That'd be insane in that shell lol Will it still be competitive in the higher classes then? And will the lowered/changed engine mounts that it currently has not cause an issue with a larger engine?

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Not a chance of it being properly competitive, given the level of competition it would face.

It would need new engine mounts no doubt, but aside from that it would bolt in no problem. I wouldn't want to use an F28, but an F20 dog 'box would be easy to source.

DO IT! I love everything about this car. The 1 litre engine is different but its just not enough. How about a supercharged 1.4?

Well if your going into the "anything goes" category, is there anything els you could/would put in from other cars/bikes for cheep money that would/could keep it competitive?

Why dont you just go for something under 1400cc that way you could keep it in the current class

Because the block has to be visually the same as the original engine for the car.

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Originally Posted by scott.parker

Well if your going into the "anything goes" category, is there anything els you could/would put in from other cars/bikes for cheep money that would/could keep it competitive?

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Where do you draw the line?

You could bolt an engine in the front, one in the back, 4WD, turbo and supercharger on both of them.........it's endless.

And that's the problem, it is literally a bottomless pit of spending if you want to be competitive in any form of motorsport. There is simply no such thing as cheap, someone else is always willing, and able, to spend more than you can.