25 replies to this topic

[minifreek1]

I used big washers on mine, and covered the nuts with M12 plastic caps....

 

It is a very tight fitment....

 

Remove the entire interior, including carpets, seats and steering wheel...

 

Use a ratchet strap to get the rear cage into position (I used a 3000KG strap)

 

DO NOT INSTALL ONTO CARPET... always metal to metal...

Edited by minifreek1, 14 February 2017 - 08:22 PM.

[Gr4h4m]

pretty sure the 'weld in plates' you have been supplied are the spreader plates - these go on the outside of the car to spread the load in an impact and stop the inner and outer sill pulling together (as much) when tightend.

 
WRONG.
 
The plates weld inside.  Think when a car rolls over, the cage will be pushed into the floor, these plates spread that force.   I know some people on here would argue that, but i'm right....end of

fair enough - i've done it wrong in that case...

 
I must admit I know of others who have done it that way, and I was tempted myself as it's much easier, but easy doesn't always mean right.

You might want to read the instructions that come with the sd boltin kit, where it states for road use you bolt them on the outside. Just saying...

[rally1380]

 You might want to read the instructions that come with the sd boltin kit, where it states for road use you bolt them on the outside. Just saying...

 

 

Mmmmm........

 

 

FROM SD website..........

9. If fitting a cage for road use only, competition regulations do not apply so it is optional whether you weld the reinforcing plates inside the car. However, some reinforcing plates, especially those which have weld-nuts, are designed to fit above hollow sections such as sills and these need to be welded in position (see instruction point 11). If fitting a cage or roll bar for road use only, plain plates without nuts may be used as backing plates, fitted to the exterior of the vehicle.

Now that the roll cage is in position, drill through each foot plate hole. Reinforcing plates can now be fitted externally. Ensure the nuts are on the inside of the vehicle to avoid possible tyre damage and corrosion of bolt threads.

 

 

I'm sorry....but no it doesn't. If I read your advice correctly, you imply this 'should' be done......all it does say is it 'may' be done if not using for motorsport.....which implies that either way would be ok.

 

Also, no one has actually asked the OP if he is intending to use the car for motorsport.

[danllew]

Just had a look, the wording is a bit strange. But I'm pretty sure the plates that came with the SD fitting kit are for the inside.

 

"9. If fitting cage for road use only, competition regulations do not apply so it is optional whether you weld the reinforcing plates inside the car. However, some reinforcing plates, especially those which have weld-nuts, are designed to fit above hollow sections such as sills and there need to be welded in position (see instruction point 11). If fitting a cage or roll car for road use only, plate plates without nuts may be used as backing plates, fitted to the exterior of the vehicle."

[danllew]

Should've refreshed the page before I posted that haha.

 

Probably not for proper motorsport but may use for track days eventually. 

 

I think I'm going to weld the SD supplied plates on the inside and maybe weld a 3mm plate on the outside just to give a bit more stiffness around the mounting point of the cage,

[rally1380]

I'm going to start the process of fitting a Safety Devices Bolt-In Cage this weekend.

 

I've got the fitting kit which contains the weld in plates for the inside of the car.

 

What have other people done when it comes to the outside of the car?

 

Also is there a modification that needs doing to stop the inner and outer sill pulling together when the bolts are tightened?

 

Any advice/help would be appreciated.

 

Outside of car - M10 bolts heading up into the car with large penny washers under the heads.  Nyloc nuts inside so they don't rattle loose

 

Sill modification - none. Yes they squeeze in a bit, but nothing to worry about as it's just the two flat sections pulling together and there is no huge gap in between.

 

 

The above is what I have done to my own car after welding the plates on the inside (as you have suggested you are going to do). This method has passed MSA scutineering on many occasions.

 

 

The photo show's my spreader plates. I made these oversize and larger than the MSA requirements to spread the weight more. They were fully seam welded all the way round with good penetration.

 

Your suggestion of welding a plate on the outside as well - waste of time.  You've already got a thick spreader plate on the inside, large washers will suffice on the outside.

 

You also say it's not for 'proper motorsport'.  To be honest it doesn't matter. If you have an accident on a track day or whilst competing, you still want the cage to be mounted properly and to protect you in case of a roll over.....so do it properly or not at all (in my opinion).  Safety isn't something to do half arsed or take the 'that will do' attitude.  And if you are fitting the cage for looks - don't bother. If you crack your head on it in an accident you'll know about it...or rather you probably won't as you'll be a cabbage!

[danllew]

I've got harnesses and bucket seats also. Might still be worth me investing in some foam.

 

Thanks so much for all the info and posting pictures.

[rally1380]

I've got harnesses and bucket seats also. Might still be worth me investing in some foam.

 

Thanks so much for all the info and posting pictures.

 

Cool. Definitely put foam where your head could potentially hit.  Roll cage tubing is very thick and strong so in an impact it tends not to deform if your head hits it.  On a track day you'll have a helmet on anyway so you'll just wreck that instead!

 

Best of luck with the install of the cage. Getting the rear section in takes a bit of practice and a ratchet strap or two. Take your time, drink loads of tea and be prepared for a few paint scratches to the B posts

[Gr4h4m]

You might want to read the instructions that come with the sd boltin kit, where it states for road use you bolt them on the outside. Just saying...

 
 
Mmmmm........
 
 
FROM SD website..........
9. If fitting a cage for road use only, competition regulations do not apply so it is optional whether you weld the reinforcing plates inside the car. However, some reinforcing plates, especially those which have weld-nuts, are designed to fit above hollow sections such as sills and these need to be welded in position (see instruction point 11). If fitting a cage or roll bar for road use only, plain plates without nuts may be used as backing plates, fitted to the exterior of the vehicle.
Now that the roll cage is in position, drill through each foot plate hole. Reinforcing plates can now be fitted externally. Ensure the nuts are on the inside of the vehicle to avoid possible tyre damage and corrosion of bolt threads.
 
 
I'm sorry....but no it doesn't. If I read your advice correctly, you imply this 'should' be done......all it does say is it 'may' be done if not using for motorsport.....which implies that either way would be ok.
 
Also, no one has actually asked the OP if he is intending to use the car for motorsport.

I Never used the word should?

[rally1380]

 

 

You might want to read the instructions that come with the sd boltin kit, where it states for road use you bolt them on the outside. Just saying...

 
 
Mmmmm........
 
 
FROM SD website..........
9. If fitting a cage for road use only, competition regulations do not apply so it is optional whether you weld the reinforcing plates inside the car. However, some reinforcing plates, especially those which have weld-nuts, are designed to fit above hollow sections such as sills and these need to be welded in position (see instruction point 11). If fitting a cage or roll bar for road use only, plain plates without nuts may be used as backing plates, fitted to the exterior of the vehicle.
Now that the roll cage is in position, drill through each foot plate hole. Reinforcing plates can now be fitted externally. Ensure the nuts are on the inside of the vehicle to avoid possible tyre damage and corrosion of bolt threads.
 
 
I'm sorry....but no it doesn't. If I read your advice correctly, you imply this 'should' be done......all it does say is it 'may' be done if not using for motorsport.....which implies that either way would be ok.
 
Also, no one has actually asked the OP if he is intending to use the car for motorsport.

I Never used the word should?

 

 

Perhaps not, but your statement was very one sided  ".....where it states for road use you bolt them on the outside".........No it doesn't. You gave incorrect and inaccurate information.....Just sayin.

[Gr4h4m]

I also used the word "might"

Edit, The word "may" can be used to express possibility it can also be used to express opertunity or permission.

If the OP needs clarification they should call or write to the cage supplier and seek it. I'm not saying it's right or wrong just stating the words were there.

Edited by Gr4h4m, 16 February 2017 - 05:18 PM.