Just want to know what people think:
A cinq with a sunroof or one without? (same question again to the seicento).
Thanks
Ming
A cinq with a sunroof or one without? (same question again to the seicento).
Thanks
Ming
Technical Which chassis is Stronger?
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Technical Which chassis is Stronger?
Imo the chassis are nearly identical where as the sei has the built in bumper brackets that don't make a difference really.
Id also say that the sunroof makes no difference as its only held on the skin of the roof and not any of the pillars.
Ash
i think anything without a sunroof is far better after all how many competition cars do u see with sunroofs? also should it happen to go on its roof its an easy point for something to come thru...saw it happen on an old cortina that rolled over outside my nans and the tree stump went straight thru the sunroof and did some serious damage to the guys head
I think you are thinking about the extra metal for the sunroof frame, which may impart some additional strength to the roof skin
It does however put a lump of glass above your head, which is not a good thing from the accident point of view, and also puts extra weight up there where you don't want it.
I would also contend that a hole in the roof is not good on a structural level in, say, a frontal impact as the roof will fold at the weakest points. My shel doesn't have a sunroof but there are kinks in the roof from the battering its had.
Cage is the answer.
Cheers
D
It does however put a lump of glass above your head, which is not a good thing from the accident point of view, and also puts extra weight up there where you don't want it.
I would also contend that a hole in the roof is not good on a structural level in, say, a frontal impact as the roof will fold at the weakest points. My shel doesn't have a sunroof but there are kinks in the roof from the battering its had.
Cage is the answer.
Cheers
D
The strength of the bodyshell is in the rails, not the roof skin.
The sunroof is a tad heavier than a bit of metal.. and it's glass above your head (more likely to shatter than a steel roof if you land on it..) but unless you roll a car into a hedge on a regular basis, I wouldn't rush to weld a steel plate where you glass roof is.
Ralf S.
The sunroof is a tad heavier than a bit of metal.. and it's glass above your head (more likely to shatter than a steel roof if you land on it..) but unless you roll a car into a hedge on a regular basis, I wouldn't rush to weld a steel plate where you glass roof is.
Ralf S.
Surely the roof must add strength, hence that a convertible will never handle as well as a non-convertible of the same car.
Ming
No Ralf is Right. Its the rails round the side of the roof that give the strength, not the roof panel itself.
Obviously a metal roof is a bit stronger than a canvas one, but go press the middle of your roof panel and see how easily it flexes.
Cheers
D
I like the idea of a solid roof. But, Sei is stiffer than the Cinq, but nothing like stiff enough. Cage it, membrane it, laminate carbon fibre onto it, foam fill it. As the actress said to the bishop, stiffness is everything.
My sei is clearly stiffer than the cinq but as we all know both of them flex alot when you jack one end up. Has anyone seam welded a cento? Always fancied doing it, especially after seeing the result of seam welding a mini, made it soooo stiff compared to a normal one.. Doubt i'll ever do it but seam welded with full cage would make 1 hell of a stiff chassis.
i cant see how a sei would be any stiffer by design but I have noticed some cars more flexy then others.
i know my car does not flex much (doors dont become stiff when a corner is jacked up) but i had a quite late seicento abarth I sold a few months back which when i jacked up the chassis twisted so much the doors became very hard to open and wouldnt actually shut when jacked up.
guess it just depends on the chassis and how well they where welded in the factory.
as for seam welding... dont do it your self... welding will cause the chassis to twist as the welds and metal contract.
stitch welding is better but you really need to put the chassis on a jig first.
also once a car has been welded if you bump the car or even hit a big pot hole (even more so without a cage) the car instead of flexing it will just bend instead...
i know my car does not flex much (doors dont become stiff when a corner is jacked up) but i had a quite late seicento abarth I sold a few months back which when i jacked up the chassis twisted so much the doors became very hard to open and wouldnt actually shut when jacked up.
guess it just depends on the chassis and how well they where welded in the factory.
as for seam welding... dont do it your self... welding will cause the chassis to twist as the welds and metal contract.
stitch welding is better but you really need to put the chassis on a jig first.
also once a car has been welded if you bump the car or even hit a big pot hole (even more so without a cage) the car instead of flexing it will just bend instead...
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I am buying a TIG on tuesday and looking to stitch mine, no jig or owt. It a bit of a risk, but I'm sure it'll be ok
we didn't use one for the mini, just do it bit by bit and it'll be fine
@craig: Of the 7 cento's i've owned, all of them do the door thing when you jack them up, the 2 seicento's i've had aren't as bad for the door jam issue hence my presumption of more stiffness (tiniest difference granted but different). Having said that it could just be down the the door catch design (if they are even different).
@craig: Of the 7 cento's i've owned, all of them do the door thing when you jack them up, the 2 seicento's i've had aren't as bad for the door jam issue hence my presumption of more stiffness (tiniest difference granted but different). Having said that it could just be down the the door catch design (if they are even different).
yep I was going to say weld it bit at a time... stitching is better and lets you do it more even (inch of weld then do an inch on the other side leaving a inch between each weld)
yeah my first cento was pretty bad but not as bad as the sei i sold.
I doubt chassis flex effecting doors is a good test... but i cant see there been much in it and more likely to be effects of weld/metal quality between each chassis (there will always be small differances)
the only thing i can think of that has made my cento much stiffer is when we rebuilt it (fully stripped it of everything) we removed all the seam sealer (to be sure the chassis was rust free and solid) then resealed it.
It could be that the seam sealer we used is of higher quality or much harder then what fiat used
yeah my first cento was pretty bad but not as bad as the sei i sold.
I doubt chassis flex effecting doors is a good test... but i cant see there been much in it and more likely to be effects of weld/metal quality between each chassis (there will always be small differances)
the only thing i can think of that has made my cento much stiffer is when we rebuilt it (fully stripped it of everything) we removed all the seam sealer (to be sure the chassis was rust free and solid) then resealed it.
It could be that the seam sealer we used is of higher quality or much harder then what fiat used
Hey guys!
I'm going to weld up my chassis too this summer, so did a little search and found this:
http://strefa34.com.pl/viewtopic.php?t=518&sid=6f3cd5fad2a8334a6f8a373d917dfb61
Contains some pretty good images of the welds made
Cheers!
I'm going to weld up my chassis too this summer, so did a little search and found this:
http://strefa34.com.pl/viewtopic.php?t=518&sid=6f3cd5fad2a8334a6f8a373d917dfb61
Contains some pretty good images of the welds made
Cheers!
Hey guys!
I'm going to weld up my chassis too this summer, so did a little search and found this:
http://strefa34.com.pl/viewtopic.php?t=518&sid=6f3cd5fad2a8334a6f8a373d917dfb61
Contains some pretty good images of the welds made
Cheers!
What a crazy bloody project, good find
Hey guys!
I'm going to weld up my chassis too this summer, so did a little search and found this:
http://strefa34.com.pl/viewtopic.php?t=518&sid=6f3cd5fad2a8334a6f8a373d917dfb61
Contains some pretty good images of the welds made
Cheers!
hmm, i have 1 cinq sporting awaiting a bigger engine, in my lock up i have a crx del sol sir with no mot....... :chin:
1+1=Ahhhh
