My experience is that it doesn't work very well. It probably does work
to a limited extent but not nearly as well as you would like.
From: owner-fot@Autox.Team.Net [mailto:owner-fot@Autox.Team.Net] On
Behalf Of Claus Ebberfeld TriumphRacing
Sent: Thursday, October 21, 2004 5:42 AM
Subject: Phantom Grip - does it work?
Hmm - for some reason I couldn't see the text in this mail, so I'll try
I am racing a Spitfire 4 in the Danish Championship for historic
racecars and in the Danish hillclimb championship. It's not a full
racecar - in fact
it is only mildly tuned, as it develops less than 80 hp even with the
factory "Stage 2"-tuning set - most importantly this consists of a rare
(iron) head and double Webers. The car has been ultrareliable though,
and thats why I ended up 3rd overall in the championship and as
winner of my division in 2004 - my first full season. And great fun it
Anyway, until now I have raced the car with an 4,55 open differential,
but this is now due for a rebuild. As the car even with its lowly power
suffers from wheelspin from the inner wheel out of corners I am
considering to strech my budget to a limited slip diff. However I have
quoted up till 1400# (approx. 2500$) for a Salisbury-type LSD, and that
is frankly more than I am prepared to put into my weekend-racer.
I then stumbled across the Phantom Grip (www.phantomgrip.com) limited
slip, which sells for 300$ in the US and about 180# in the UK. I've
searched the internet for reviews, and found them very mixed. Some
praise the Phantom Grip no end, particularly the price compared to
gear LSD's, other acknowlegde the low price but reckons the gains are
lower - some even lower than the price. And finally there seems to be
some questions regarding wear from the sliding steelplates and the
resultant steel debris contaminating the diff.
My question is: Does anyone here have firsthand experience with the
Phantom Grip? And of course - does it work?