big bolts on the bumper

[florentino]

heres a pic, why ??? because its helping the frame
what do you think tnt does it make sence.
i am no rocket nerd, but it makes sence

[TNT]

Wheres the pic and who u callin a rocket nerd :D

[florentino]

no one not you.

[TNT]

I get to see the quad next weekend kind of hard just looking pics...If you look at the pink arrows below that is one of the compression forces failing the frame member which is seeing alot from the arms. Not sure adding more compression to agitate this situation is a good idea. Also, and we just experienced this, when the quad flips you want the bumper to fail before load gets to the frame, putting bigger bolts adds more clamp-up tension strength to keep that frame failing but hopefully the welds do that.

http://i280.photobucket.com/albums/kk191/Terrylport/Slide2-5.jpg

[florentino]

i can tell you that those bolts help the frame. if you have smaller bolts then its like not having any. as there will be play

[ds450xracer]

Originally posted by TNT
I get to see the quad next weekend kind of hard just looking pics...If you look at the pink arrows below that is one of the compression forces failing the frame member which is seeing alot from the arms. Not sure adding more compression to agitate this situation is a good idea. Also, and we just experienced this, when the quad flips you want the bumper to fail before load gets to the frame, putting bigger bolts adds more clamp-up tension strength to keep that frame failing but hopefully the welds do that.

http://i280.photobucket.com/albums/kk191/Terrylport/Slide2-5.jpg

If you want to help support the area in that red box Can Am has come out with an improvement for that area on the 2010xmx, the warnert guys at the GNCC gave me the new plate the connects the front upper A arm mounts to the frame
http://epc.brp.com/Index.aspx?lang=E&s1=41e43f55-b5d4-45be-b67c-435114747090
Go to this website and select the 2010 ds and click on XMX frame and it shows you the one that comes on the standard DS and the one that comes on the XMX

[TNT]

What they tell you the part in green is now for MX and in red is for XC/Trail...

how is it different than 09? ....looks same.

http://i280.photobucket.com/albums/kk191/Terrylport/brp2010framekit.jpg

[ds450xracer]

I wasnt aware that that piece came on the 09's, guess I just figured it was a new attempt at fixing the problem of those pieces breaking

[TNT]

I heard they thickened something up I think the piece that cracks. Maybe that combine with the new parts shown below is the fix. I don't even see both the reinforcement plates in these pics. Maybe 15 got thicker too who knows.....I'd like to find out exactly.

http://i280.photobucket.com/albums/kk191/Terrylport/BRPFrame.jpg

[jlrenken]

so tnt r they saying to take out the extra piece if u race mx. mine has it in from factory but it is an 08 frame.
thanks

[TNT]

I don't know what they are saying, I found out this morning they thickened the part that fails they don't tell you if it's on the 2010 in those diagrams....I'd expect part # changes but you never know....In any case, thats good news we can get them at BCS and they shoud work for 2008-2010. I'd hope the thickness grew inward, oml stayed the same...I'm sure it did. I will order mine just to replace it. That should fix the prob...Unless otherwise instructed by BRP/BCS I'd keep the frame kits on too that with the thicker frame should keep this from happening.

[TNT]

I think I misuderstood Jason yesterday talked to BCS again today...they thickened up the front reinforcement piece that keeps the frame from breaking. I'd beleive that getting more load away from the frame should do the trick....So we get the new piece from BCS.


I think it may be the piece in the 2010 diagram.

[jlrenken]

the piece that u got from bcs should be made of steel. the stock ones are made of al and thats y they have that triangular piece under it. from what i heard is thqt the 2010 the piece will cover more area on the frame well that is on the xc package im not sure for the mx. im sure it would be the same too.

[florentino]

Originally posted by TNT
I get to see the quad next weekend kind of hard just looking pics...If you look at the pink arrows below that is one of the compression forces failing the frame member which is seeing alot from the arms. Not sure adding more compression to agitate this situation is a good idea. Also, and we just experienced this, when the quad flips you want the bumper to fail before load gets to the frame, putting bigger bolts adds more clamp-up tension strength to keep that frame failing but hopefully the welds do that.

http://i280.photobucket.com/albums/kk191/Terrylport/Slide2-5.jpg
tnt i dont think that you understand i said cause my english is no bueno. think about one more time it will make sence
the 2 bolts that hold the bumper are to hold the bumper. but they are also holding 2 pieces of the frame pieces that breack.
so having 2 small bolts that have play its like they are only there to hold the bumper, but they should help to hold the pieces that breack. so thats why i put grade 8 bolts and bigger too and real tite. so you get the pic.

[ds450xracer]

This is what I was giving at the Can Am trailer at the GNCC to help support the area

[TNT]

Originally posted by ds450xracer
This is what I was giving at the Can Am trailer at the GNCC to help support the area

That makes no sense to me, looks like they widened the Z-channel to gain more surface area, fine for transfering load but not keeping the frame rail from bending as I illustrated above. They need another bolt above the existing one that would be the reason for extending the Z up the frame to add a fastener on both sides. If they would have taken it up the frame further it be better, there are design rules for how close fasteners can be to one another or pitch, on metal usually 4-6 times the diameter or you get buckling from too much concentrated load in one area between fasteners, also 2d min to any edge.

See the red bolt I'd put one there it's better than nothing.

Well at least we have a fix and it looks like the 2010 Z DS 450 EFImx channel is it as illustrated in the diagram I posted above. Might be good for everyone to replace this and add the fastener.

http://i280.photobucket.com/albums/kk191/Terrylport/Presentation1-3.jpg