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

Thu Mar 11 11:13:16 EST 2010

Thomas,

That sounds more like it from the offset bushings, +1 degree total from stock. I don't believe you can get the previously reported 1.5 degress each top and bottom from them, there simply isn't sufficient movement fore and aft within the mounting tabs to provide that.

This discussion has me curious to what I actually acheived with the dual mod, so I'll have to measure at some point. Certainly the a-arm mod provided a .75" rearward movement of the upper ball joint as I used .75" aluminum stock to make up the new spacer.

Julian

> Date: Thu, 11 Mar 2010 07:49:02 +0100
> From: Thomas.Tornblom at hax.se
> To: teampantera at yahoo.com
> CC: detomaso at realbig.com
> Subject: Re: [DeTomaso] Has anyone used Marino's Offset Front Bushings toIncrease Cast
> 
> Checking the protocol from the front end adjustment after installing the 
> offset bushings, I see that I now have a tad over +3° of caster.
> 
> Unfortunately I don't know what it was before installing the bushings.
> 
> I can't say I notice any increased steering effort after installing 
> these, as well as not noticing any major improvement w.r.t. tram-lining.
> 
> I have 285/40 Yokohama AVR1:s in the front, on the factory 10" GT5 rims.
> 
> Thomas
> 
> Mad Dog Antenucci skrev:
> > 6.5 to 7? its gotta be huge.
> > you are my new hero.....obviously you didn't ready Jack or Mike's comments ;-)
> > 
> > Mad Dawg Antenucci 
> > Team Pantera Racing 
> > The 1st & still the only vintage race team in open road racing 
> > www.teampanteraracing.com
> > 
> > 
> > 
> > 
> > ________________________________
> > From: Julian Kift <julian_kift at hotmail.com>
> > To: Jack Deryke <jderyke at aol.com>; teampantera at yahoo.com; De Tomaso List <detomaso at realbig.com>
> > Sent: Wed, March 10, 2010 12:21:17 PM
> > 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
> >> _______________________________________________
> >>
> >> Detomaso Forum Managed by POCA
> >>
> >> Archive Search Engine Now Available at http://www.realbig.com/detomaso/
> >>
> >> DeTomaso mailing list
> >> DeTomaso at list.realbig.com
> >> http://list.realbig.com/mailman/listinfo/detomaso
> > 
> > _________________________________________________________________
> > Your E-mail and More On-the-Go. Get Windows Live Hotmail Free.
> > http://clk.atdmt.com/GBL/go/201469229/direct/01/
> > _______________________________________________
> > 
> > Detomaso Forum Managed by POCA
> > 
> > Archive Search Engine Now Available at http://www.realbig.com/detomaso/
> > 
> > DeTomaso mailing list
> > DeTomaso at list.realbig.com
> > http://list.realbig.com/mailman/listinfo/detomaso
> > _______________________________________________
> > 
> > Detomaso Forum Managed by POCA
> > 
> > Archive Search Engine Now Available at http://www.realbig.com/detomaso/
> > 
> > DeTomaso mailing list
> > DeTomaso at list.realbig.com
> > http://list.realbig.com/mailman/listinfo/detomaso
> > 
> > !DSPAM:4b981d3e10678153625052!
> > 
> 
> 
> -- 
> Real life: Thomas Törnblom Email: Thomas.Tornblom at Hax.SE
> Snail mail: Banvallsvägen 14 Phone: +46 18 444 33 21
> S - 754 40 Uppsala, Sweden Cellular: +46 70 261 1372
> 
> _______________________________________________
> 
> Detomaso Forum Managed by POCA
> 
> Archive Search Engine Now Available at http://www.realbig.com/detomaso/
> 
> DeTomaso mailing list
> DeTomaso at list.realbig.com
> http://list.realbig.com/mailman/listinfo/detomaso

_________________________________________________________________
Hotmail: Trusted email with Microsoft’s powerful SPAM protection.
http://clk.atdmt.com/GBL/go/201469226/direct/01/