Well after too much 4wding on the belly my crossmember was rooted so I made a new one. had to get the grinder out to cut holes to access the old bolts.
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| Author: | pyrohamish [ Fri Sep 09, 2011 8:52 am ] |
| Post subject: | Vitara crossmember |
Well after too much 4wding on the belly my crossmember was rooted so I made a new one. had to get the grinder out to cut holes to access the old bolts.
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| Author: | buzbox [ Fri Sep 09, 2011 9:11 am ] |
| Post subject: | Re: Vitara crossmember |
Nice work, personally I'd weld some tabs on the joints for extra bracing. |
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| Author: | Fatzook [ Fri Sep 09, 2011 10:25 am ] |
| Post subject: | Re: Vitara crossmember |
Any pics of it fitted? I'll be making a new one for mine soon, as it is also munted, but I'll be using 12-16mm ally flatbar. I can't help but think that your design will sit as low, if not lower than the standard cross member 
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| Author: | pyrohamish [ Fri Sep 09, 2011 1:14 pm ] |
| Post subject: | Re: Vitara crossmember |
I shall take some tomorrow |
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| Author: | suzukiboy [ Sat Sep 10, 2011 1:15 am ] |
| Post subject: | Re: Vitara crossmember |
That is well bent. Did the same on mine. 
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| Author: | steak_knife [ Sat Sep 10, 2011 4:24 am ] |
| Post subject: | Re: Vitara crossmember |
Fatzook wrote: Any pics of it fitted? I'll be making a new one for mine soon, as it is also munted, but I'll be using 12-16mm ally flatbar. I can't help but think that your design will sit as low, if not lower than the standard cross member
Think that'll do?????
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| Author: | pyrohamish [ Sat Sep 10, 2011 5:11 am ] |
| Post subject: | Re: Vitara crossmember |
you could use FB but I would defiantly add some vertical structure to stop the bending the three bolt heads sit about 5mm lower than the chassis rails, if I was making from scratch again I would use 30x30RHS. I used 40 because i had it lying around. I only noticed how bent it was because i had to fix a gasket on the exhaust which started leaking after a bit of a bump. The rubber mounts were on all weird angles. 
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| Author: | Fatzook [ Sat Sep 10, 2011 5:42 am ] |
| Post subject: | Re: Vitara crossmember |
Looks good! Better clearance than OEM cross member on the whole. |
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| Author: | Fatzook [ Sat Sep 10, 2011 5:44 am ] |
| Post subject: | Re: Vitara crossmember |
steak_knife wrote: Fatzook wrote: Any pics of it fitted? I'll be making a new one for mine soon, as it is also munted, but I'll be using 12-16mm ally flatbar. I can't help but think that your design will sit as low, if not lower than the standard cross member Think that'll do????? Yep. 16mm 6061 T6 flatbar would be stronger than 8mm steel. |
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| Author: | royce [ Sat Sep 10, 2011 6:35 am ] |
| Post subject: | Re: Vitara crossmember |
Fatzook wrote: steak_knife wrote: Fatzook wrote: Any pics of it fitted? I'll be making a new one for mine soon, as it is also munted, but I'll be using 12-16mm ally flatbar. I can't help but think that your design will sit as low, if not lower than the standard cross member Think that'll do????? Yep. 16mm 6061 T6 flatbar would be stronger than 8mm steel. If its was a boring grade of mild steel 6061 t6 would be as strong size for size |
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| Author: | pyrohamish [ Sat Sep 10, 2011 8:10 am ] |
| Post subject: | Re: Vitara crossmember |
Just because its stronger doesn't meant it will still be suitable considering moments of inertia 40x40FB I=880000mm^4 16x40FB I=164000mm^4 and deflection of a pin-pin beam delta=(F*L^3)/(48*E*I) E steel ~235GPa E Alu ~80GPa given this the Aluminium beam will deflect ~16x more than the RHS or in other words put some vertical structure in |
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