I thought the lower inboard pivot point on TR4's was adjustable.
Shortening the upper arms certainly works, but it makes the camber gain
pretty high and adds more bump steer. Moving the inboard pivot point inward
doesn't change the camber gain, only increases the bump steer a little bit,
and it's fairly easy to do. Might not be legal in your sanctioning body
though.
How big is really big for the bar? Can you adjust it so your pickup is way
out at the end?
You might try 22 / 22 for tire pressure.
-----Original Message-----
From: owner-fot@autox.team.net [mailto:owner-fot@autox.team.net] On Behalf
Of Henry Frye
Sent: Tuesday, April 13, 2004 8:45 PM
To: kas kastner
Cc: fot@autox.team.net
Subject: Re: Calling you tire/suspension experts
Now I am wondering if the car will be OK riding in the trailer on those
tires! ;-)
Wondering even harder how our fearful leader Joe survives running his....
ahem, tire program! <bigger grin>
The quantity and quality of the replies I have received has been
outstanding. I appreciate everyone's responses. The consensus of everyone's
opinion is I have been running overinflated and with too much camber for my
setup. Here's what I run.
The front end is lowered with a pair of those great Triumph Competition
Dept. springs. You can tell them from stock because the coils run
counterclockwise going down, opposite the stock springs. Massive sway bar,
perhaps too big. Negative camber is achieved by using shortened upper
A-arms, supplied by uncle jack's racing service. With my car sitting in a
line of TR4's at races, comparing the front camber to other TR4's, mine
looks to have less camber than others. Michael Porter I think may have put
his finger on the crux of the issue, my big front sway bar is keeping the
car from rolling in corners, so I don't need as much negative camber dialed
in. I wish this was an easy adjustment on a TR4. Would make life so much
easier...
I have been running cold tire pressures at 24 front and 23 rear. I have
experimented with lower, and didn't think it felt right. Looks like I will
be doing more experimenting this week. The Frye Racing Program has not
started the tire temp thing, so I have no idea what the tire temps are.
Looks like another gadget for the trailer is needed.
I have the tow set to about 1/8th in. My plan is to buy another set of tires
and set the toe to Zero before they see the track.
Thanks again, one and all.
At 12:58 PM 04/13/2004 -0700, kas kastner wrote:
>Might as well give an opinion........ Don't move them anywhere but the
>dumpster.
|