the whole concept seems to me to be a good idea as for me I like to keep
the car on the track and not in the grass if you are lucky to have some,
all our cars have changed alot to keep going strong an it is up to us to
keep them changing to stay ahead of the crowd ...and to pass goo ideas
On Mon, Aug 20, 2012 at 7:06 PM, Tony Drews <tony@tonydrews.com> wrote:
> Do you have a sense of how much "offset" there is at the outboard end of
> the A-arms? That would make up for the lowered pivot in the trunnion - at
> least partially.
>
> Also, someone mentioned to me that the stub axle may have been moved up on
> the TR-6 upright (which would lower the car). Can anyone confirm / deny
> this?
>
> It would be awesome to have the parts side by side for comparison - both
> upright / vertical link and trunnion / lower A-arm combination.
>
> Alternately, a few measurements from a TR-4A / TR-6 front suspension may
> help:
> On vertical link from bottom of upper ball joint mount to center line of
> spindle
> From center line of spindle to spring pan
>
> That should give me a good feel for how much (if any) the TR-6 setup would
> lower the car.
>
> Tony
>
>
> At 11:17 AM 8/20/2012, Charly Mitchel wrote:
>
>> It depends on which way you install the arms, offsets up or offsets
>> down. My suspension had spacers to lower it and I flipped the lower a-arms
>> and removed the spacers and remained the same height.
>> Charly
>> ----- Original Message ----- From: "Tony Drews" <tony@tonydrews.com>
>> To: "Charly Mitchel" <charly@mitchelplumbing.com>; "MadMarx" <
>> tr4racing@googlemail.com>; <fot@autox.team.net>
>> Sent: Monday, August 20, 2012 8:52 AM
>> Subject: Re: [Fot] TR-4 vertical link and trunnion
>>
>>
>> THAT's it. Left hand thread / Right hand thread. Thanks.
>>>
>>> OK, next question - If I switch from TR-4 to TR-4a (or TR-6) lower A
>>> arms, does that undo the lowering effect of the later trunnions? My car is
>>> low enough already, and messing with spring spacers doesn't sound like any
>>> fun at all. I've got two weekends before the next race to get this done.
>>> It sounds like the later A-arms are a direct bolt on for the earlier car
>>> with the welded in lower frame pivots. It may also eliminate the need for
>>> the reaming and spacers. It would probably also eliminate the additional
>>> camber gain - not sure that's a plus, but everything else would be a
>>> positive.
>>>
>>> Joe, your TR-250 front end is getting more attractive as we go along...
>>> :)
>>>
>>> Tony
>>>
>>> At 10:41 AM 8/20/2012, Charly Mitchel wrote:
>>>
>>>> My guess is the are L&R handed to keep from mixing them up. The
>>>> trunnion has the castor built into them and if you tried to reverse them
>>>> the wheel would have opposite castor. The threads on them are also L&R
>>>> handed and can only be assembled as a set L&R.
>>>> Charly
>>>> ----- Original Message ----- From: "Tony Drews" <tony@tonydrews.com>
>>>> To: "MadMarx" <tr4racing@googlemail.com>; <fot@autox.team.net>
>>>> Sent: Monday, August 20, 2012 8:33 AM
>>>> Subject: Re: [Fot] TR-4 vertical link and trunnion
>>>>
>>>>
>>>> I'm looking at a diagram of the TR-4 and TR-4a
>>>>> front suspension. On the 4A, the vertical link
>>>>> is different for Left Hand side of the car and
>>>>> Right Hand side of the car while on the TR-4 it's
>>>>> the same part for both sides. The trunnions are
>>>>> "handed" too - right / left hand for both set ups (but are different
>>>>> parts).
>>>>>
>>>>> Why is the vertical link different from side to
>>>>> side? I'm not seeing the difference and want to
>>>>> make sure I cover my bases if I make this conversion.
>>>>>
>>>>> Thanks, Tony
>>>>>
>>>> <snip>
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--
rob deanes
TR Racer
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