Joe.
Thanks for the enlightenment. So what they did was reduce rear roll
stifness, increase it at the front and (probably) produced loads more
understeer, not mention all manner of roll induced front wheel camber
change.
Not the best solution for a cone runner. Unfortunately, in my case the sow's
ear I'm attempting to make into a silk purse is a Rotoflex Mk III GT6, so
camber compensator's won't help (all those suggesting psychiatric counciling
WOULD help can just put a lid on it - it's my obsession, I can do what I
want with it!). The manual I referred to was The British Leyland Competition
Prep Manual for GT6+ (2nd edition) - page 27 F/R suspension for Street/Solo
Competition.
cheers
Scott
>From: "Joe Curry" <spitlist@COX.NET>
>To: "'scotts junk'"
><smacsjunk@hotmail.com>,<triumphs@autox.team.net>,<spitfires@autox.team.net>
>Subject: RE: Swing Spring?
>Date: Sat, 20 Sep 2003 10:57:30 -0700
>
>
>Scott,
>Now what I am about to write is very controversial and many may not
>agree. But what the hey, I have never been known for holding back.
>
>In my opinion, the swing spring does NOT improve handling. The only
>positive thing it does is help prevent wheel tuck which was a big
>problem with early fixed spring Spits, GT6's prior to Rotoflex, Heralds
>and Vitesses. This can be considered an improvement in handling but in
>doing the swing spring, Triumph added a lot of body roll and that is
>contrary to proper handling. To help, they increased the stiffness of
>the front sway bar. Kas Kastner's Camber compensator was a much better
>fix for the problem since it achieves the desired effect without
>contributing to additional body roll. By the way, I have reproduce Kas'
>design and am selling the CCs for all Spits, GT6s Heralds and Vitesses.
>The only exceptions are for the rotoflex GT6s where it is not necessary.
>
>On the later Spits and GT6s which have swing springs and long axles, I
>have a different kit with a longer spring and link bolts. But to
>install a camber compensator on a car with Swing-spring, you would have
>to remove the rocker box and secure the spring to the diff or else
>replace with a fixed spring from an earlier application.
>
>That's my story and I'm stickin' to it!
>
>Regards,
>Joe
>
>P.S. I have not seen the book you mention but I can't see how changing
>to a swing spring while keeping the rotoflex will help. I know that
>some of the later books were done by someone else and wonder if that
>particular book was indeed written by him. I'll ask him and let you
>know.
>
>
>
>
>-----Original Message-----
>From: owner-triumphs@autox.team.net
>[mailto:owner-triumphs@autox.team.net] On Behalf Of scotts junk
>Sent: Saturday, September 20, 2003 9:08 AM
>To: triumphs@autox.team.net; spitfires@autox.team.net
>Subject: Swing Spring?
>
>A question for those with more knowledge of suspension engineering than
>myself. How exactly does the swing spring used on the late model Spits
>and GT6 Mk III improve the handling. I've seen in numerous magazine
>articles
>that it lowered the roll center, but from my limited understanding of
>swing axle geometry this appears to be a load of marketing hooey being
>parroted by the writers. Can someone clarify what's really going on.
>
>The reason for the question stems from Kas Kastner's remark in the MK 2
>GT6tuning manual that swapping in a swing spring will improve handling in a
>roto flex car. I can't find anyone who has actually done this - anyone
>care >to speculate on the theory behind this?
>
>thanks
>Scott
>
_________________________________________________________________
MSN 8 with e-mail virus protection service: 2 months FREE*
|