Weight reduction???

All technical questions and answers regarding starions, being modifications to maintenance.
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TD05
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Post by TD05 »

Glynn wrote:yeah thats a good point :oops:
maybe TD05 did mean lbs. i didn't really give much though to it actually, bugger... forget my ealier post. now that i think about it i rekon it probablly would weigh around 50kg.

dammit... now i have to think of how to loose 60kg from the front (50-16)
I was quoting an E type jag bonnet, they weigh I think 230lbs in steel form, the CF bonnet is 35 lbs...

The Stazz will prob be a lot less.....
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Post by tmz_99 »

could get one of those fiberglass cowl hoods from the US, not sure of the weight on them however.
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Glynn
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Post by Glynn »

all we need is someone to make moulds of the bonnet and the quater panels (the bonnet might need some al reinforcment) not sure how much weight this would save, but yeah it could be ballanced by replacing the hatch with perspex (unless you want to bring the COG rearward)

lighter wheels would also be a very good approach, this would also lessen the gyroscopic effect of the wheels (infact lightening the flywheel would have some degree of affect on the cars handling aswell)
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Post by Glynn »

TD05; yeah sorry man i got carried away with figures (my staz is in Melb and i haven't taken the bonnet off in ages) i didn't even really question the weight until someone else mentioned it.

btw i now own your name in turbo form, does that mean i owe you royalties?
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cheaterparts
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Post by cheaterparts »

I have read this thread with interest as my project car ( starion ) has to go on a diet before I build the cage

So here is some food for thought have you lightened the flywheel
as 1 Kg removed from a 250 mm dia has the same effect on acceleration
as about 35 Kgs removed from the car in first or about 12 Kgs from the car in second of cause the effect reduces the higher the gear

and why is this ? the engine has accelerate that 1 Kg more times in lower gears

In my N/A 2.6 sigma I run a 5 Kg steel flywheel
I think for a starion it would be closer to 6 Kg

stephen
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Post by Guru »

I’ve given some thought to weight reduction in regards to swapping out heavier parts rather than removing incidental weight. What’s the situation regarding the follow?
- Replace rear hatch glass with a lighter material (ie. Perspex)
- Replace exhaust piping with a lighter metal material
- Replace bonnet with a lighter material (ie. Carbon fibre)
- Space saver tyre instead of regular (also get some boot space back!)
- Replace battery with a lighter battery (is this even possible?)
- And then there’s having an alloy engine!
- No fat chicks!

What’s feasible (granted everything is feasible if you throw enough money at it) without an excessive budget?
Last edited by Guru on Sun Nov 14, 2004 9:25 pm, edited 1 time in total.
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Post by CussCuss »

perspex.. we will find out soon
exhaust, not really al wont take the heat, ti is to expensive
bonnet, fibreglass yes, cf no, but someone needs to do it
you could use that tyre in a can stuff
battery, yes smaller so i guess lighter
alloy engine, sr20det, yes

incar phil i think it was got some cf doors made that were a fair bit lighter
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TD05
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Post by TD05 »

Glynn wrote:TD05; yeah sorry man i got carried away with figures (my staz is in Melb and i haven't taken the bonnet off in ages) i didn't even really question the weight until someone else mentioned it.

btw i now own your name in turbo form, does that mean i owe you royalties?

no, no royalties.

just remember me when you wax, a'ight?

:D
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GTI-R's are best in the wet..
Who needs Rock & Roll when there's JAZZ, Honda RULEZ
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SpidersWeb
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Post by SpidersWeb »

Does anyone know what materials you use to create a fibreglass mould from car panels? Or rather what is commonly prefferred and reusable?
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cheaterparts
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Post by cheaterparts »

SpidersWeb wrote:Does anyone know what materials you use to create a fibreglass mould from car panels? Or rather what is commonly prefferred and reusable?
Fibreglass is what u make your mould from

after you get your plug ( bonnet - gaurd - flare ? ) made and this could be a standard component or made from wood plaster or car bog make it mint as your mould will take all or any imperfections
next step is to wax the plug so the f/glass will come away
there are heavier gel coats that can be used for the mould
after glassing your plug about 6 mm thick and it has gone off
remove it clean it up wax it your ready to go

I made a boot from f/glass a few years back messy job but not to hard to work with

stephen
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cheaterparts
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Post by cheaterparts »

cheaterparts wrote:
I made a boot from f/glass a few years back messy job but not to hard to work with

stephen

that boot should read BOAT
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SpidersWeb
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Post by SpidersWeb »

Ahhh its the wax I never knew about (havent started anything yet).

Thought I might give fibreglassing ago, do a few small bits, Staz bonnet will be one thing later on, mostly because I want to do something different, and its easier if the whole bonnet is fibre.

May not pan out, but I want to give it a go, Ive found a place to buy the fibre, resin, tools etc for a reasonable price too.
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Post by Glynn »

yeah let us know how you go with that man, i'd been keen to have a crack at making fibreglass bonnet & front quater panels
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Post by Defective »

SpidersWeb wrote:Ahhh its the wax I never knew about (havent started anything yet).

Thought I might give fibreglassing ago, do a few small bits, Staz bonnet will be one thing later on, mostly because I want to do something different, and its easier if the whole bonnet is fibre.

May not pan out, but I want to give it a go, Ive found a place to buy the fibre, resin, tools etc for a reasonable price too.
ive got a guy here in nelson who is willing to make a mould of my bonnet, would any of you other kiwis be interested in a fibreglass bonnet?

he reckons he can do it so we can still have all the scoops too AND they will actually work :D
oz, here i come....
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SpidersWeb
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Post by SpidersWeb »

Yeah let me know the price! I may want custom vents, but Ill pay extra to have mine customised afterwards. But yeah Im interested if the price is reasonable.
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