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Bump steer (more)

To: "'tvr@Autox.Team.Net'" <tvr@Autox.Team.Net>
Subject: Bump steer (more)
From: "Hill, Stephen M AETT:EX" <Stephen.Hill@gems7.gov.bc.ca>
Date: Thu, 24 Sep 1998 11:02:56 -0700
Following is a couple of messages regarding bump steer. I should say I have
not used Adrian's services, and cannot speak to his quality or prices.  He
sounds knowledgeable.>
>
>> ----------
>> From:        Adrian Venn[SMTP:adrian@exactly-tvr.demon.co.uk]
>> Sent:        Tuesday, September 22, 1998 1:04 AM
>> To:  Hill, Stephen M AETT:EX
>> Subject:     Re: Bump steer
>> 
>> In message <4FFAF12896B6D111B10900805F15E900026472FC@summer.bcsc.gov.bc.
>> ca>, "Hill, Stephen M AETT:EX" <Stephen.Hill@gems7.gov.bc.ca> writes
>> >John Upham suggested I contact you regarding solutions to bump steer. I
>> have
>> >a 1971 TVR 2500 which I am working on, with plans to slalom (I think you
>> >Brits call it autocrossing??) I have recently run into information which
>> >describes several fixes for bump steer, most of which seems to apply to
>> the
>> >M cars. Martin Tooze, for example, suggests replacing the TR6 steering
>> arm
>> >with TR4 arms. Would this fix work for my car?? Do the pre-M cars have
>> much
>> >of a bump steer problem? Apparently you have another solution??
>> Appreciate
>> >any info you have on this. Thanks. Stephen
>> >
>> >
>> >Stephen Hill
>> >Senior Policy Analyst
>> >Program Planning and Development Branch
>> >Skills Division
>> >Ministry of Advanced Education, Training, and Technology
>> >4th Floor, St. Anne's Academy, 835 Humboltdt
>> >New phone number: 356-2065  
>> >New fax number: 387-0262
>> 
>> Hi Stephen
>>         Yes the Vixens do have bump steer problems, all curable with the
>> spending of time and money (as always) The standard rack and the body
>> are too long and the cure for this is to replace the rack complete,this
>> requires the chassis rack mounts to be moved and to fit a alloy rack
>> mount kit and modified track rod ends to suit along with changing the
>> steering arms. You could start the ball rolling by taking the steering
>> arms off and checking that these are the same R/hand to L/hand so that
>> the tracling can be set correctly in the future,( always a problem).
>> Perhaps change the anti-roll bar to my larger size unit with modified
>> drop links along with the solid rack mount kit and optimize the whole
>> front end by a total rebuilding of the suspension and steering UJ`s. All
>> these will enhance the base unit (which is flawed),but will all need
>> doing before you find the real bumpsteer problems then limits ability
>> for you to drive the car to right to it`s real limits. All the parts
>> I`ve talked about are available from me with full backup and advice on
>> fitting, call me.
>> Regards Adrian
>> 
>> Turnpike evaluation. For information, see http://www.turnpike.com/
>> 

In message <4FFAF12896B6D111B10900805F15E900026472FD@summer.bcsc.gov.bc.
ca>, "Hill, Stephen M AETT:EX" <Stephen.Hill@gems7.gov.bc.ca> writes
>       Adrian, thanks for your response. A couple of questions.
>       1. I am not sure what you mean: "You could start the ball rolling by
>taking the steering arms off and checking that these are the same R/hand to
>L/hand so that the tracling can be set correctly in the future,( always a
>problem)." Does this mean the steering arms should be identical, or sided??
>
>       2. What steering arms do you recommend?
>
>       3. How much do you charge for a new rack? Is it possible to modify
>the one I have??
>
>       4. You mention a solid rack mount kit. Does this not produce a lot
>of road vibration at the steering wheel? What do you charge for this item?
>
>       5. How do I find out what products and services you offer?? 
>
>       Thanks. Stephen

Hi Steven
        1 The arms are handed but never the same when put on a flat
surface so you need to compare them so that they are the same angles
2 Standard are ok but they need to be modified for my special racks
3 Standard racks are 47.00 Quick racks 63,00  the very special shortend
quick racks kits are 280.00 (this inc. the special track rods and rack
mount kit)
4 Solid rack mount kits are 22.50
5 Just ask I`ll supply you with everything you will/might need 
on you tvr
Regards adrian@exactly-tvr.demon.co.uk 01203596883

Turnpike evaluation. For Turnpike information

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