OMP cage

[al@broadway]

I've bought an OMP cage to fit in my S2, I'm interested in how the front leg mountings are configured if anyone has a past experience, are they fitted to the door sill or the floor? as mine seem incapable of fitting to either.

 

[Cater_Racer]

Not sure, my cage fits to the floor on the front leg, but it may be non-OMP.

I can trade photos if required.

What's your plans for the car?

 

[al@broadway]

Track days and possibly hill-climb next year

 

[944 man]

I was put off because OMP come unpainted (and unfinished according to some) and no one seemed able to confirm that they would be sending a RHD cage from Italy.

I cant really help as Im not familiar with them, but my first question would be: is it a conventional front, with a single tube per side from main hoop down past the A pillar to the floor with one bend and a cross piece that bolts to both side tubes and runs across over the windscreen?

Presuming so then you should be able to tel where the A pillar foot mounts from its shape. If its a flat foot with a bolt hole on the 'into car' side, then it is likely to be floor mounted. This is because there isnt really room for that foot to mount on the sill top. Also: sill top mounting cage (like my Safety Devices front) arent usually flat.


Simon

 

[al@broadway]

Confirming your assumptions about the configuration, but there is a flat foot which will not sit on the floor as when the cage is in the correct position wrt the top bars then the foot is at the door sill level but not in any configuration that would sensibly fit. I think I need to contact OMP as this is a new cage from them thro' Demon Tweeks.

 

[944 man]

They probably require you to build up a box section mounting and then mount the foot onto that - quite common with OMP cages. The picture below shows a similar mount fabricated in an Impreza for an OMP cage.

Its probably not as bad as it looks, as theres always a good deal of welding involved in fitting a 'bolt-in' cage: so this wont add too much work. On the positive side itll provide a far better mounting than a 3mm plate reinforced floor mount...

I hope that this helps somewhat.


Simon

 

[CarreraRSR]

This is why an OMP cage was a non starter for me. I was happy to weld in flat mounting plates under the carpet as per Safety Devices but not start welding box sections.

As mentioned you want to make sure its a RHD diagonal as well. Most OMP stuff is LHD only. (diagonal top point above drivers head) No issues for track days but may limit its potential use in any proper racing, sprints or hillclimbs.

 

[944 man]

This is the reason that OMP cages are so cheap. A Rollcentre Racing cage from Martin Short would be a far better bet and theyre finished too.

 

[Hilux]

They probably require you to build up a box section mounting and then mount the foot onto that - quite common with OMP cages. The picture below shows a similar mount fabricated in an Impreza for an OMP cage

.

Yup

OMP are cheap and crude and building box sections means YOU fit them rather than a proper custom fit. They are known to be innacurate ieut of square and level etc so you end up "making them have it"

 

[944 man]

I know that Al saw this, even though he didnt comment, so whether he will be back I dont know... I will post the following link though (which Paul will be familiar with) because it contains a wealth of useful advice for anyone who wishes to fit a rollcage: good or bad.

It also helps to interpret the sometimes vague requirements laid down by the MSA.

http://clubgti.com/forum/showthread.php?t=168862