Lotus Elan

Secret Weapon For Lotus Elan.

PostPost by: ceejay » Mon Aug 12, 2013 1:43 am

What secret weapon you ask?

*Rear Adjustable Blade Anti Roll Bar* (ARB) That's what.

We want to show you how to go about building your own
rear ARB.

But be warned, if you've only got a hacksaw, screwdriver, a few
spanners, and a couple of old files in your tool kit, then sorry, this
project isn?t for you.

To build the ARB, you need to be able to fabricate, weld, and
posses lathe and milling machine skills, or access to the
previously mentioned machines/skills.

I'm letting you in on what?s required before I get abused for
presenting something that some may think is beyond them.... and
that's OK... but don?t be afraid to take all of the design intellectual
property I am about to share with you to your guru to get it built
and installed.

This rear ARB is the best handling mod that I have ever made
to our S2 elan.... It's like a concealed secret weapon.

The ARB consists of an adjustable rotating flat blade design,
which allows the ability to dial in the perfect handling setting,
great for the serious elan track racer, or fast road driver.

Learn More At The Blog Article:
http://elantrikbits.com/lotus-elan-blog ... b-s2-elan/

Or Hit The Download Page.
http://www.elantrikbits.com/ARB.html

Col.
Give tools to those who can use them.
Provide land to people who want to grow
things.
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PostPost by: el-saturn » Mon Aug 12, 2013 8:03 am

hi col, aren't those off of a F2 or F3? and more importantly can you get me a pair?? the rest i'd prefer
to do myself - especially the bracket on the wishbone! cheers sandy j
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PostPost by: ceejay » Mon Aug 12, 2013 8:09 am

Yes Sandy, that is the idea, complete instructions are in the book we are offering. At this stage we are not offering components.
Col
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PostPost by: el-saturn » Mon Aug 12, 2013 8:26 am

thanks col. somehow there must be at least a drawing OR maybe your next door neighbor
builds F3 cars and he'll sell me a set. as i see it the blade must be too stiff at a certain angle (90?)
and not stiff enough if set at 0 degrees! ................. that's why they're adjustable! thanks sandy j
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PostPost by: rgh0 » Mon Aug 12, 2013 9:30 am

You can easily buy blades from a number of suppliers ( do a Google search and you will find them) if you don't want to make them yourself like Col did.

Cols E-book shows the rest of the system he built

cheers
Rohan
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PostPost by: john.p.clegg » Mon Aug 12, 2013 12:06 pm

Just been having a quick look into this and agree that in the horizontal plane the blade "stiffness" will be minimal while in the vertical plane the "stiffness" will be maximum but at angles between what is there to prevent the blades flexing in an angular motion as opposed to up/down?

John :wink:
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PostPost by: ceejay » Mon Aug 12, 2013 1:09 pm

This is the big advantage of the rotating blade adjustment,
you can quickly move from the hard setting to soft or
something in-between, depending on handling preference.

Yes, the blades will flex if adjusted at an angle, but
as each blade is moved to the vertical it places
more work load on the cross torque tube which the
blades are fixed to.

During the first drives of the elan, (After the four
year rebuild) the blades were set to full soft, simply
for the sake of not knowing what the behaviour would
be.

At a much later date when front and rear suspension
alignments and settings were finally sorted, the
blades were adjusted to the full hard position, and
I have decided to leave it at that setting.

But not every car will be tuned to the same settings.

The suspension (Both front and rear) on the S2
is fully adjustable, with up rated springs on adjustable
platforms front & rear, urethane bushes all round.

Long story short, it is a bloody amazing elan to drive.

After twenty-nine years, I now have an elan that provides
enormous driving pleasure and attracts a lot of
attention whenever I am out and about in it.

And it happens to absolutely run rings around some of
the so-called hot hatches being flogged in car
dealerships as sports cars.

Don?t sit there and question every angle of this ARB, it
works.

Are you up to building the ARB? It?s all explained
in the ebook.

This is a bit like when we launched the anti oil surge
gated oil pan project for the twin cam, some people
were a bit perplexed as to how such a simple device
could be so amazing and highly effective.
But it just works!

Here's My Favourite Duckworthism:
(Source: Cosworth ? The Search For Power).

> A genius can make for a penny, what a good engineer
can only make for 10p.
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PostPost by: el-saturn » Mon Aug 12, 2013 2:13 pm

good reasoning and i reckon i'll have a look into the "stores" at a friends place who use to run Ralts,
Ansons (now BBC TV), and Dallaras - where i'll find something to start with - i just can't resist fellas!
it's like with my other project: s. picture ----- btw the carb on the right is for sale (it's also a 45dcoe9, but
as used on jags) - it's restored, only the butterflies need some patience and experience! have a nice eveening sandy j
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elanHEAD.jpg and
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PostPost by: rgh0 » Tue Aug 13, 2013 1:02 pm

john.p.clegg wrote:Just been having a quick look into this and agree that in the horizontal plane the blade "stiffness" will be minimal while in the vertical plane the "stiffness" will be maximum but at angles between what is there to prevent the blades flexing in an angular motion as opposed to up/down?

John :wink:


Yes they will move a little sideways as they flex when at an angle between full hard and full soft. The tapered shape used minimised this. The resultant stiffness in the system in the vertical plane is what you are interested in to control roll and this increases progressively as you move the blade from horizontal to vertical.

cheers
Rohan
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