[DeTomaso] Has anyone used Marino's Offset Front Bushings toIncrease Cast

Rob Dumoulin rob at dumoulins.net
Wed Mar 10 17:45:41 EST 2010


Along the same thought, I've had some fast and modified cars in my life, but
my Pantera is the first car where I really understand what Sammy Hagar means
when he says:

..When I drive that slow, you know, it's hard to steer,
  And I can't get my car out of second gear!

On Wed, Mar 10, 2010 at 5:28 PM, <wkooiman at earthlink.net> wrote:

> WOT in a Prius is barely over an idle in a Pantera.
>
>
> -----Original Message-----
> >From: Julian Kift <julian_kift at hotmail.com>
> >Sent: Mar 10, 2010 2:21 PM
> >To: Jack Deryke <jderyke at aol.com>, teampantera at yahoo.com, De Tomaso List
> <detomaso at realbig.com>
> >Subject: Re: [DeTomaso] Has anyone used Marino's Offset Front  Bushings
>      toIncrease Cast
> >
> >
> >I too notice no increased steering effort and that's on a GT5 wide body
> with 10" wheels and 275 width tires and around 6.5 to 7 degrees of caster. I
> can assure you my overall driving experience is improved by ~1000% as before
> the mod I would keep both hands firmly on the wheel because if it hit a
> pothole or seam in the asphalt it would rip the wheel from your hands.
> >
> >
> >
> >IMHO if you need to be able to turn with one finger then it's time for a
> Toyota.... just remember that one finger steering effort ain't gonna do
> shite when the accelerator pedal decides you need to be going WOT.
> >
> >
> >
> >Julian
> >
> >> From: JDeRyke at aol.com
> >> Date: Wed, 10 Mar 2010 14:41:04 -0500
> >> To: teampantera at yahoo.com; detomaso at realbig.com
> >> Subject: Re: [DeTomaso] Has anyone used Marino's Offset Front Bushings
> toIncrease Cast
> >>
> >> In a message dated 3/10/10 9:11:52 AM, teampantera at yahoo.com writes:
> >>
> >> > I keep hearing about 'increased steering effort' but at 5.5 degrees I
> >> > don't see much increased in traffic or parking difference over 2+.
> >> >
> >> In vehicle steering systems, when the car is turned you actually lift
> the
> >> whole front of the car a few thousandths of an inch. If you have more
> caster,
> >> the height you must lift the weight is more. This weight aids the
> >> self-centering effect and is valuable at high speeds. Most drivers
> nowadays are used
> >> to one-finger power steering and thus the extra weight in a Pantera with
> >> extra caster is noticable. Whether this bothers a driver depends on
> whether
> >> they -A- have corrected the bad scrub radius of the stock 7" front
> wheels, and
> >> -B- are not very strong. Going above 'some speed', the amount lifted is
> more
> >> gradual for a given turn thus less apparent.
> >> Worst example of caster is a road grader: they run about 15 degrees
> caster
> >> and when those things turn 90 degrees, the tires lay over almost onto
> their
> >> sidewalls. To compensate, the steering ratio is VERY slow so the weight
> >> lifted with the steering wheel is not overpowering. Chopper motorcycles
> with
> >> raked-out forks are another; some extreme bikes will lay over the tire
> so far
> >> they scuff the rim edge in a sharp turn.
> >>
> >> Generally, the wider the front tires, the more caster a car needs to
> >> prevent tram-lining and 'hunting'. The stock Pantera's 2.5 or so degrees
> worked
> >> fine when the cars had 185-70 x 15 front tires. FWIW- J DeRyke
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-- 
Rob DuMoulin
904.476.8744
rob at dumoulins.net



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