just wondering if i can make it any better need somthing to do.
quick rack?
wheels balanced,
suspension geometry setup correctly,
reducing unsprung weight on the front.
Anything in particular you are not happy with at the moment?
In any case, getting the alignment and camber right should perhaps be the first step. Does it self centre OK? If not then consider finding a way to
get a bit more caster, you might need a pair of Wozsher's top wishbones for that.
Your springs and shocks are probably too stiff, they are on most sevens
John
quote:
Originally posted by madteg
just wondering if i can make it any better need somthing to do.
quote:
Originally posted by minitici
quote:
Originally posted by madteg
just wondering if i can make it any better need somthing to do.
If you want better handling, you need one of these....
Surely it depends on how you like you car set-up and how it is at the moment?!?!
But yes, as above. Balanced wheels, right balance between steering speed and feel and tracking.... (though optimum tracking will depend on the
intended use, road / circuit shape etc etc etc)....
As said, getting everything pointing in a straight line and experimenting from there will imprve things a great deal. From there you cn have a look
at corner weighting and bump steer.
IMO, changing to a quick rack doesn't improve the handling of the car, just the amount of turns lock to lock of the rack (the geometry doesn;t
change so the chassis behaviour will be the same).
There's a load you can do to improve the handling without spending a load of money. Once you've got the basics sorted, then youcan
experiment with spring rates and brake balance, again fairly cheap.
A copy of the Race and Rally Car Source Book (Allan Staniforth) is a good place to start.
(1) Set ride height properly
(2) Corner weights
(3) Camber
(4) Alignment
(5) Check (1) to (4) again
(6) Track test to determine balance of car and start changing roll stiffness and spring rates to get it a balanced the way you want.
quote:
Originally posted by britishtrident
(1) Set ride height properly
(2) Corner weights
(3) Camber
(4) Alignment
(5) Check (1) to (4) again
(6) Track test to determine balance of car and start changing roll stiffness and spring rates to get it a balanced the way you want.
Check tyres pressures
Change tyres to a softer compound.
You could have a look at this book:
Am
azon link
Ignore the stupid prices on that link! The price on the book is £17.99, and I don't think I even paid that much for mine.
Anyway - it's a straightforward description of what suspension means, and how to set it up correctly.
UPDATE:
Better prices
here
.
[Edited on 17/5/09 by David Jenkins]
What exactly is "self centered"?
And I mean car wise not
limited to or caring only about yourself and your own needs.
I have the book on long loan form the uni libarary, ive not spent enough time on it yet, but they come up for £10 second hand from time to time and a
lot of libarayrs do have them.
Ive not been in kitcars long enough to know the practice. But certainly it common sence to be to look at tracking/camber/rideheight/cornerweighting
before doing anything else.
Freind of mine at uni (also on this forum) raced his locost last year and says geting in corner weighted made a massive diffrence.
My local westfeild club have a corner weight gauge and tracking/camber gauges and thats my first job after the end of term.
Daniel
Competition car suspension by Alan Staniforth or for general interest on how it works how to build motorcycle engined racing cars by tony pashley.
tony
Hi
As suggested by all above getting the geometry all set is a first step. Including the Castor. Attention should be paid to the thrust line of the rear
geometry and the camber control of the rear. As mentioned there is someone who is now offering new wishbones for the Indy's that will help you to
have far easier ability to adjust the geometry and get it all lined up.
As mentioned by MR H dampers and springs play a massive part in the handling of the car. Getting the dampers balanced can transform a cars handling if
they happen to be out of balance. Now i wonder where you can get that done FOC.
Cheers Matt
Add some carbon-look vinyl and a large tailpipe! Oh, no sorry. That just improves performance.
quote:
Originally posted by Richard Quinn
Add some carbon-look vinyl and a large tailpipe! Oh, no sorry. That just improves performance.
kev if you want to borrow my corner weight gauge, then just ask
dave
As mentioned already we do the Fully Adjustable Front Top Wishbone.We are currently working on Adjustable Rear Bottom Wishbone to allow on car toe adjustment and an Adjustable Front Anti-Roll Bar
One thing to be aware of is handling and grip aren't the same thing.
The things that made the greatest difference to my car's handling were:
1. ride heights, front and rear.
2. corner balancing.
3. tyre pressures.
4. spring rates.
5. damper settings.
These aren't in priority order, as they're all inter-connected. Each was fiddled with and adjusted over time as my experience grew.