currently:
K front = 206 (spring freq 2.0) (650lb spring)
K rear = 161 (spring freq 1.6) (500 lb spring)
front bar c. 200 lbs/in
rear bar c. 110 lbs/in
(these may be less than that due to flexing of the components)
the car shows incredible understeer under power.
also, i have interference between the frame and my upper arm in the rear, so
when the car hits the bump stops it does some weird things! im going to
relocate things to fix it, but since ive got my motor all torn apart im
finishing that first.
im thinking of going to a 600lb spring in the rear, which will bring the
rear freq to 1.8
hmm, also planning to increase my front tire width (new tires dont come in
my current width).
anyway im hoping to curb the bump stop action in the rear with more rate and
hoping i wont have to move the frame around and re-design my rear sway bar.
plus cure my understeer.
-james "i need 50% more horsepower" creasy
OSP #74
----- Original Message -----
From: European007 <bspencer@tsoft.com>
To: james creasy <Black94PGT@pacbell.net>; <ba-autox@autox.team.net>
Sent: Monday, February 04, 2002 5:16 PM
Subject: Re: how close can rear spring freq be to front?
> Why do you need to add more rear spring???? What is the car not doing????
>
> What is the front and rear wheel rates???? Why and how are you checking
the
> cps?
>
> Barry Spencer
>
>
> ----- Original Message -----
> From: "james creasy" <Black94PGT@pacbell.net>
> To: <ba-autox@autox.team.net>
> Sent: Monday, February 04, 2002 5:00 PM
> Subject: how close can rear spring freq be to front?
>
>
> > my front is about 2.0 cps and the rear perhaps 1.6. the car is
extremely
> > stable, but id like to add a little more rear spring. can i get away
> with
> > 2.0 cps front and 1.9 rear?
> >
> > i know some people that set spring rates by relative weigh on the front
vs
> > rear. does this work for rear heavy cars too?
> >
> > thanks,
> >
> > -james c
> > OSP #74
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