Thanks for your comments, I did not think this post would open up such a large can of worms
[Edited on 28/10/08 by Steelman]
Are front & rear anti roll bars worth fitting to a Luego Viento.
Thanks for your comments, I did not think this post would open up such a large can of worms
[Edited on 28/10/08 by Steelman]
will listen in on this one
I think, generally, and for road use, a/r bars are not needed on this type of car
John
On a road car, you are not looking for 10 tenths but on a track you might be.
Fit a front bar (minimum) if you intend to go on track for competition, but remember that a bar can work against you in the wet. Most racers
disconnect them or adjust them to softer settings (if you can) when wet racing.
It all comes down to how you intend to drive the car.
Lots will tell you go without on the road.
I put both on the F1-2 but removed the front one (rear engined) as I found that with such a light front end, instead of stopping roll, everytime I hit
a bump it lifted the car off the road at the front.
With such a wide set of bones on mine it did not need one.
[Edited on 27/10/2008 by nitram38]
quote:
Originally posted by hicost
quote:
Originally posted by mr henderson
I think, generally, and for road use, a/r bars are not needed on this type of car
John
Why?
A front ARB is always a good move however if you fit one you may find you have to alter the spring rates.
Rear ARBs are more problematic as they can have a bad effect on traction on exit from corners and over one wheel bumps. If a rear ARB is fitted on a
RWD car a front should also be used and the rear ARB should be much less stiff than the front ARB
It might be an idea to get a hold of a copy "How to make Your Car Handle" by Fred Phun ISBN or ISBN 9780912656465
Lotus Sevens had/have a very soft springs and a stiff front ARB same goes for just about every professionally designed low volume production front
engine rwd specialist sports car from the Lotus Elan onwards.
Sports cars always use low roll centre, but if you use a low roll centre to avoid excessive body roll the choice is either use very hard springs or a
stiff anti-roll bar.
Using an anti-roll bar on the front also allows front springs to be chosen to give a lower suspension frequency than at the rear which gives a much
improved more level ride reducing the "bucking bronco effect" as each axle passes over two wheel bumps.
It is fairly obvious from a number of posts on the forum that a lot of "sevenish" cars are suffering from excess body roll inspite of using
very hard springs. The reasons for this are two fold firstly it seems to be the fashion to use ground level roll centres front and rear, secondly
they lack anti-roll bars.
The ground level roll centres are copied from the suspension used on modern single seater racer with out taking into account that such cars have
immensely stiff suspension particularly in roll.
The Lotus Seven S1 had front spring rates of 110lb./in and rear rates of 75 lb/in compare that to what most home built sevenish cars run these
days
[Edited on 27/10/08 by britishtrident]
quote:
Originally posted by Steelman
Are front & rear anti roll bars worth fitting to a Luego Viento.