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Post by lemans1955 on Apr 19, 2014 12:06:58 GMT -6
Hey guys, currently building a 74-76 nitro II/ rally into a racer. The rear of the tunnel has the usual cracks at the corners. The factory bar is missing but I didn't want to use one anyway, I was wondering what you other racers have done to add strength to this section? Cross bars being the obvious answer, but anything diffrent would be cool to see. Thanks guys!
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Post by Ruppsforever on Apr 19, 2014 15:50:04 GMT -6
I like to use the 77-78 Nitro setup on my racers. Very strong.
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Post by lemans1955 on Apr 19, 2014 17:01:30 GMT -6
What do the 77-78s have? Anyone have a pic?
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Post by racingelvis on Apr 20, 2014 8:10:24 GMT -6
i dont have a picture but the 77 and 78 nitro was a better deal for supporting the back of the tunnel. one "L" bracket on the back of the tunnel on each side and a rod bolted to them going across the back of the tunnel.
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Post by lemans1955 on Apr 20, 2014 15:49:07 GMT -6
Does anyone have one of those they would like to part with?? NOS, used, doesn't matter to me.
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Post by snosnake on Apr 20, 2014 16:33:04 GMT -6
They would be pretty easy to make.
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Post by racingelvis on Apr 20, 2014 17:41:39 GMT -6
i have one i could sell you. call me at the shop tomorrow. 715-592-4707. thanks,....bill
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Post by lemans1955 on Apr 21, 2014 16:24:51 GMT -6
Hey sorry bill, worked all day today never got the spare time to call, I will give you a ring later this week when I'm off work.
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Post by magnumal on Apr 22, 2014 8:24:54 GMT -6
Jim should show you how he did his for oval racing !!
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Post by lemans1955 on Apr 22, 2014 12:13:39 GMT -6
Did he have to fully enclose the rear end? Some ice oval sanction bodies require this.
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Post by magnumal on Apr 22, 2014 14:32:26 GMT -6
I never saw it myself I just know he did something ? He is on board Ill let him know your wondering !!
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Post by jimgrandmi on Apr 25, 2014 13:57:50 GMT -6
Here is the tunnel enclosure I had built at work. Sheetmetal that was welded on the edges to enclose the rear of the track. I had longer material that I bent and secured to the bottom of the footwells to stop the cracks from expanding. Seems to have held up OK.  I painted it black and used T bolts to install. |
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320
Senior Member
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Post by 320 on Apr 25, 2014 20:02:43 GMT -6
Man i have seen that exact view of your sled all season!
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Post by magnumal on Apr 26, 2014 8:45:40 GMT -6
Are you the one that cut him off , mister snow jet , ? LOL
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Post by lemans1955 on Apr 26, 2014 9:06:16 GMT -6
Thanks for the pic, it looks like a good solution. I'm not racing on ice yet so a bit too drastic of a measure for me, going to go with a 77-78 nitro style support for the snow racing we do. As for the cracks, going to get them welded up and reinforced with more aluminum sheet under the footwell. Should be 100% stronger than stock (which isn't really saying much) Thanks for the replies guys! Really appreciate the help!
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320
Senior Member
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Post by 320 on Apr 26, 2014 11:36:05 GMT -6
O no. That wasnt me on the sno jet. I ride a yamaha,sometimes a ski doo and next year will add a merc trail twister. But i know who you are speaking of and got a close up of the incident.
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