IVA Compliant Removable Steering Wheel (Boss)

[356Speedster]

My build is making progress and I've just ordered my next batch of parts from the factory. I bought the rack / column, but stopped short of buying the boss / wheel, as I'd like a removable one.

The factory no longer supply a compliant removable boss and don't know of any.... how about everyone here? Has anyone tracked / used down a compliant boss?

The obvious alternative is to put a std one on,then swap after testing, but if I can get a compiant one now, then I'd like to do so.

Cheers! Mark

[hedgefinder]

better off just buying a cheap non removable one for the test, then change after.

[ezakimak]

what are the compliance specs that are required for IVA. I know a little bit about some of the EURO specs as there are ADR equivelents but dont know whats required for IVA.

Regards Ryan

[Storer]

A removable steering wheel boss will not pass IVA just as adjustable brake bias wouldn't.

Paul

[Steve_D]

Storer said:

A removable steering wheel boss will not pass IVA just as adjustable brake bias wouldn't.

Paul

Where abouts in the IVA manual does it say you can't have a removable wheel?

Steve

[V8Dom]

I would have thought a lockable removeable wheel ok, but not a normal quick release as you could remove it while driving>>

best stick bolt on wheel then add removeable afterwards and enjoy the wheel closer to you... It a great improvement.

Dom

[356Speedster]

According to the factory, their previous supplier of compliant bosses stopped making them with the relevant "E" certifications to pass IVA and they didn't look for an alternative. I shall find myself a wheel that I like and buy it with a static and snap off together.

I had a snap off in my Atom and it was a great anti-theft device, so as I'm building an aeroscreened Can Am, same logic applies.

I think the brake bias is safety issue, in the eyes of IVA..... we're not trustworthy to adjust our brakes on the move safely

[Storer]

Steve_D said:

Where abouts in the IVA manual does it say you can't have a removable wheel?

Steve

Steve

I may be wrong but I think there is a requirement for a deformable section of the steering column to protect the driver in the case of an impact. On the factory supplied column this is the wheel boss. A quick release mechanism replaces this boss.

I think this will cause an IVA failure.

Paul

[Steve_D]

Storer said:

Steve

I may be wrong but I think there is a requirement for a deformable section of the steering column to protect the driver in the case of an impact. On the factory supplied column this is the wheel boss. A quick release mechanism replaces this boss.

I think this will cause an IVA failure.

Paul

Can the deformable section not be fitted between the release hub and the wheel? I assumed this is how it would be mounted.

Steve

[ROWDYRENAULT]

Mark: I have a removable steering wheel and to tell you the truth if I had the opportunity to build another GTR that's one of a very few things I would leave out. I am 6'2'' and whether the wheel is in or out has no impact on ingress or egress save your money and spend it on something else. Just a thought, Lee

[V8 Vum]

356Speedster said:

According to the factory, their previous supplier of compliant bosses stopped making them with the relevant "E" certifications to pass IVA and they didn't look for an alternative.

I bought one of these from the factory about 9 months ago from memory, so does that mean that my boss is not compliant? (He isn't in all other respects! )

K

[356Speedster]

V8 Vum said:

I bought one of these from the factory about 9 months ago from memory, so does that mean that my boss is not compliant? (He isn't in all other respects! )

K

Can only go by what the factory told me yesterday.... They said they sold compliant ones in the past, but couldn't get them any more. I@d say if you got it from them, then you should be compliant.

I'll have a punt around and see what I can find on the web.

[khm]

i put my car through IVA with removable steering wheel without any trouble at all, but car has a collapsable steering column - does an ultima have this ?
TBH couldn't get into the car with the wheel on without great difficulty !!

[356Speedster]

khm said:

i put my car through IVA with removable steering wheel without any trouble at all, but car has a collapsable steering column - does an ultima have this ?
TBH couldn't get into the car with the wheel on without great difficulty !!

As I've said I want a removable wheel for safety, not to ease entry / exit..... what make / model of boss did you use on your car?

[V8Dom]

Storer said:

Steve

I may be wrong but I think there is a requirement for a deformable section of the steering column to protect the driver in the case of an impact. On the factory supplied column this is the wheel boss. A quick release mechanism replaces this boss.

I think this will cause an IVA failure.

Paul

I bolted my quick release onto of deformable boss hence the wheel closer to me and feels....greeeeat when driving..

Dom

[spatz]

this is what I have too and it is just perfect and I have the wheel sticking out 40mm more because of the stalk setup.
So in my case +40mm crush zone and then factory quick release. And I am a big guy !
Wonder how you can drive the car if the wheel is almost 12 cm more away ?

[macgtech]

ROWDYRENAULT said:

Mark: I have a removable steering wheel and to tell you the truth if I had the opportunity to build another GTR that's one of a very few things I would leave out. I am 6'2'' and whether the wheel is in or out has no impact on ingress or egress save your money and spend it on something else. Just a thought, Lee

I completely agree. In our pitstops one driver get out then the other gets in in under 5 seconds with the wheel in place (however doing the belts up are an entirely different matter!)

We did go for the removable wheel however, as it is a major advantage if you need to do anything under the dash/footwell area - its next to impossible to get under there from the driver's side with the wheel in place.

Jonny

[V8Dom]

picture for you



dom

[Graham-P]

That's the one I have but I removed the crush zone boss. I think they are from Mountney.

Graham

[Storer]

macgtech said:

I completely agree. In our pitstops one driver get out then the other gets in in under 5 seconds with the wheel in place (however doing the belts up are an entirely different matter!)

We did go for the removable wheel however, as it is a major advantage if you need to do anything under the dash/footwell area - its next to impossible to get under there from the driver's side with the wheel in place.

Jonny

What you forget Jonny is that some of us Ultima owners are a little more rotund and elderly than you so we need all the help we can get to get in and out!!!

PaUL