I had my first proper drive today and wanted to get some opinion on a good starting point for damper settings.
At present I have the adjusters screwed 6 clicks in from fully anti clockwise position.
Tyre pressures are about 20 psi all round.
currently running 12 psi front-18 rear-still playing with rear pressures due to new tyres and trying to find the best setting
quote:
Originally posted by ruskino80
currently running 12 psi front-18 rear-still playing with rear pressures due to new tyres and trying to find the best setting
thats where my fronts need to be feels perfect at the front-30 months use and tread is still perfect nearly as new!!!
my back feels less good at present,hate new tyres,car just feels wrong,will keep fiddling and hopefully get it.
I run 16.5 psi on all tyres.
As you have a CVH engine i would suggest about 18 to 20 psi.
damper settings are a bit of trial and error.
8 at the front
6 at the rear for road use.
full clicks all round less one click for track use.
geometry set up also makes a big difference. I hope to do some extensive testing and suspension changes over the winter months and i will post my
results both good and bad
I have been reading,
"How to build and modify suspension and brakes" by Des Hammill
A basic point in here that concerns me
is that for the type of suspension design used on the Indy you should be aiming to get the front lower wishbone pivot points - i.e. centreline of the
wishbone pivot bolts and/or centreline of ball joints - an equal distance from the ground. Think of an imaginary line between the inner and outer
pivot point centrelines and this line should be parallel to the ground. In this way the effects of the suspension's bump and droop are minimised.
With my current ride height I recon I'm about 20mm too low to achieve this and to raise it would bring the body up to a silly riode height, I
wonder if this has to do with running 15" wheels and the Indy geometry is more suited to 13's?
What about your's guys?
(Sorry for plagerising some of this text from an old post!!)
quote:
Originally posted by ReMan
I have been reading,
"How to build and modify suspension and brakes" by Des Hammill
A basic point in here that concerns me
is that for the type of suspension design used on the Indy you should be aiming to get the front lower wishbone pivot points - i.e. centreline of the wishbone pivot bolts and/or centreline of ball joints - an equal distance from the ground. Think of an imaginary line between the inner and outer pivot point centrelines and this line should be parallel to the ground. In this way the effects of the suspension's bump and droop are minimised.
With my current ride height I recon I'm about 20mm too low to achieve this and to raise it would bring the body up to a silly riode height, I wonder if this has to do with running 15" wheels and the Indy geometry is more suited to 13's?
What about your's guys?
(Sorry for plagerising some of this text from an old post!!)
quote:
Set at 110mm from floor at front, 130 rear. That made a lot of difference when I did it
What size of tyre are you running.
if a 50 profile would reccomend 16-18 psi for normal road use.
and if you get on track raise to around 22psi.
had this on several cars and was good recommended by a caterham race team so i trust there judgement.
When people are saying 6 clicks, where is that from? I would take it as fully wound in (clockwise) then 6 clicks anti clockwise. As thats how we set the dampers up on the cars at work. But stu said 6 clicks from anticlockwise at the beginning.
quote:
When people are saying 6 clicks, where is that from? I would take it as fully wound in (clockwise) then 6 clicks anti clockwise. As thats how we set the dampers up on the cars at work. But stu said 6 clicks from anticlockwise at the beginning.
Cheers for that stu, I thought it may be in the middle somewhere.