healeys
[Top] [All Lists]

Re: Bilstein Gas Shock Conversion?

To: Blue One Hundred <healey.nut@gmail.com>
Subject: Re: Bilstein Gas Shock Conversion?
From: Dave & M <rusd@velocitus.net>
Date: Tue, 05 Jul 2005 23:06:11 -0600
Hi Alan,

I'm well aware of the tube shock - lever shock differences & designs. I
know what a good race chassis is composed of & how it is built. It's
been a long time since I fell off the turnip truck. It is my opinion
that if the Healey is not being pushed to the absolute limits, the
average Healey driver will not notice a lot of difference in shock
design. If it is being pushed to the limits, there are too many other
shortcomings in the chassis/suspension/tires that overshadow the shock
issue.

After all, most of the parts came fron an Austin sedan. You get a
very hard response from the woefully short suspension travel no matter
what. Probably worse than the Austin donor.  Bump steer is a matter of
suspension geometry, shocks can only compensate for a little of it at
best.

I suspect that more than a little of the present day Healey handling
problems, and bump steer can be attributed to frame/body flex
which was not there originally, but has gradually increased as rust took
it's toll. Enjoy your lever shocks, they are a perfect complement to the
rest of the "compromise" chassis. Or do all out modifications like the
rally cars.

Regards,
Dave Russell
BN2

Blue One Hundred wrote:
 > Dave -
 >
 > Hope I'm not opening a can a worms here, but lever shocks can't
 > compare with tube shocks.  Oil filled lever shocks, by design, are
 > somewhat flawed because under sharp loads, the oil will increase its
 > resistance to movement (in the shock) and you get a very hard
 > response from the suspension when you hit a bump... that's why
 > healeys have such bad bump steer problems.... good or bad lever
 > shocks don't make a difference here.  Think about pulling the trigger
 >  on a squirt gun... if you pull it slowly, it is easy to pull... but
 > if you pull the trigger real fast, it builds pressure and the trigger
 >  becomes harder to pull.  The squirt gun can only let so much water
 > through the spout at any given time.
 >
 > Gas shocks, by design, are much better set to taking sharp/shock
 > loads, hence why tube shocks will have a much better ride quality
 > than old-school lever shocks.  In addition they will do a much better
 >  job of keeping the wheels on the road, stopping bump steer.
 >
 > That being said, both my healeys have lever shocks on them... I guess
 >  they are good enough for me for the time being.
 >
 > Regards,
 >
 > Alan
 >
 > '53 BN1 '64 BJ8




<Prev in Thread] Current Thread [Next in Thread>