Fibreglass Front doors on a sig.

[516MA]

just as it says has anyone seen or heard of a sigma with fibreglass doors and guards? im thinking about fibreglass doors for drag racing and i wanna see if someone else has done it or if there are any fiberglass's on here will to do it, if so how much will it be for front doors?

Nick

[panda]

This subject was raised a while back, & the agreement was they were too dangerous for street use, so end of discussion. But, for drag racing now thats a new story.
Any good fibreglasser should be able to use a stock Sigma door to make a mould for a fibreglass skin.
Good luck.

[516MA]

yea i know but i couldnt find it again

so are there any fibreglassers on here?

Nick

[amgis_obrut]

yea i know but i couldnt find it again

so are there any fibreglassers on here?

Nick

first see if they're legal for the racing class

[77galantv6]

i work in a fibreglass factory.
IMO for the amount of effort needed to make the doors (for just a one of product) you would be better off just trying to lighten the door in other ways. (remove glass and make perspex etc)
it would cost you a fair bit for the doors if going through a company (unless you know someone)
and it would take you around 3 days to make the mould for just the outer skin for one side if you were doing it yourself.
then you would have to do the inside of the door mould which would be fairly complicated (putting door hinge/latch holes etc into the mould) which would take longer around 4 - 6 days
then you would need to either have fixed perspex windows or take even longer to mould the window system into the door.
then you need to lay up the fibreglass and join the 2 parts together - inner and outer plus add in things like door hinges/latches etc.

plus being for drag racing it would need to be fairly thick i assume....

then you would have the cost of the fibreglass, the gell coat, wax, mould release agent, etc

your best bet would be seeing the rules in regards to drag racing.
if legal and knwing the requirements, go to a boat building/sailing company and get a quote.
you would have to supply the doors of course.
i honestly think the money being spent on the doors would be best spent elsewhere.

you might save kilograms with the door but could spend that money and make more kilowatts.

a fibreglass bonnet would be a better option. easier to make = less money.

cheers,
Dean.

[stealth]

yeah i got to agree with dean here and i reckon i can make your
doors lighter in steel just gut all the non esential steel and leave skin and
parts of the frame like a v8 supercar door and your cage is the intrusion bar
cheers stealth

[516MA]

that was another option fibreglass bonnet and boot lid. 77galantv6 how much do you reckon it will be for the 'glass boot and bonnet?

Nick

[77galantv6]

not really sure mate,
i build country link and xpt trains lol
it would be seriously cheaper than doors though.
easier to mould and a fairly simple shape.
all they would need to do is lay up the skin and you could add some bracing and the bonnet pins etc
being custom though, they can charge what they want really.
where are you located? if your near newcastle, my mate does custom work and bodykits
if you are near the coast anywhere there are usually yacht/ship builders in the area that do custom work.
just ask around and get quotes....

hope that helps,

Dean.

[amgis_obrut]

that was another option fibreglass bonnet and boot lid. 77galantv6 how much do you reckon it will be for the 'glass boot and bonnet?

Nick

sigma boot is light, just do what most racers do and cut all the bracing out

[77galantv6]

yeah, was thinking that myself.
bonnet would be the same i guess, just try and 'lighten' the bracing
like i said before, money that could be spent elsewhere really.
but its your car and your ideas

good luck with it,
Dean.

[BAD-SIG]

I just started a full ground-up rebuild of my GE Sigma and since I need replacement front guards due to the big rust holes, I thoughtI'd look into getting fibreglass replacements made. And might as well get bonnet and boot lid done too! But I guess the front guards might be tricky to replicate in fibreglass due to the strange bends, curves and edges??

[amgis_obrut]

I just started a full ground-up rebuild of my GE Sigma and since I need replacement front guards due to the big rust holes, I thoughtI'd look into getting fibreglass replacements made. And might as well get bonnet and boot lid done too! But I guess the front guards might be tricky to replicate in fibreglass due to the strange bends, curves and edges??

not a street car then ??

[BAD-SIG]

It will be a street registered car, although only driven on weekends and occasional track thrashing..

[75wagon]

I did a fibreglassing course a few years back and the teacher said that to be economically viable you'd need to sell 5 of the panels (or whatever) to pay for the labour/ materials cost just to make the mould.
I've never done this myself to prove it, but it sounds about right.
Any panels you want made, would have to be a group purchase to make a manufacturer interested.
Dave.

[77galantv6]

thats exactly right dave.
unless you do it yourself,
then it is just your time and money.
then once you have the mould perfect you could make yourself some cash
although fibreglass parts arent so sort after on siggies

Dean.