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Post by phocup on Oct 17, 2016 16:59:55 GMT
Since SCCA classed the Exocet in D/EMod for autoX, I'm looking for a solution to haul Hoosiers about 100 miles to events. Really want to stay away from trailers if possible. I'm thinking of building a 'tire tail' similar to this ..  I made some mock ups for the Exo chassis ..   As far as weight, each wheel should be 11# + 19# for the tires.. so 30#. 4 of them = 120# Then the support bracket, I don't imagine being that heavy. I can splurge on alum if needed to save weight .. so maybe 30#? 40# ? A total of 150-160# of weight about a foot or two behind the car. I think it should be okay. What do you guys think ? Also open to opinions on different ways to haul on the Exo. |
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Post by phocup on Oct 17, 2016 17:04:51 GMT
I should add that the bracket wouldn't be welded to the car, but inserted into the two rear tubes, held with pins ( like trailer hitch mounts ) to be removable at the event.
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Post by SeanW on Oct 17, 2016 17:13:27 GMT
I'm not sure I like the idea of a tail quite like that. I've asked Kevin about the possibiliy of a trailer hitch for a small track trailer but...
I'm going to work with a friend of mine who's an awesome fabricator (race cars/roll-cages) on designing a light duty trailer hitch for my Exo.
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Post by gwnwar on Oct 17, 2016 18:16:17 GMT
I would go for a trailer hitch.. The weight of the rack and 4 race wheels/tires maybe 150 lbs stuck way out back would make rear of car squat a lot.. With a trailer you can carry jack, air tank and tools..
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Post by phocup on Oct 17, 2016 18:25:53 GMT
I'm trying to avoid the trailer due to CA having a 55MPH speed limit on the freeway when towing ( down from a blazing fast 65mph when not ). On the positive note, a trailer like this would look pretty cool behind the Exo ..   Recycling at its best. |
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Post by kiwicanfly on Oct 17, 2016 18:28:42 GMT
Whilst a small trailer would be my choice an alternative to your rack would be to bring a rack over the back of the car and secure to the roll bar putting the load over the rear axle rather than so far behind.
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Post by dietcoke on Oct 17, 2016 21:09:02 GMT
just put them on top.
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Post by jwagner on Oct 17, 2016 22:58:40 GMT
 Actually, given the lightness of the tail of the Exocet, it might improved the handling. |
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Post by phocup on Oct 18, 2016 1:18:42 GMT
Actually, given the lightness of the tail of the Exocet, it might improved the handling. As Rich Oliver once said .. "what weight .. its alllll traction baby". Also I think you guys are over estimating 150#s a bit .. here's some context ..  |
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Post by phocup on Oct 18, 2016 4:34:46 GMT
Actually nevermind .. I think you guys are right. When I started thinking about it in term of % of the Exo's weight, its about 10%. That got me into a bit more math. 150# hanging on a 24" fulcrum is the same as 3600# hanging 1" away. That doesn't sound like such a hot idea anymore. Plan B .. since I have 40" of spacing between the wing mounts .. that should be enough width to fabricate something to hold 32" worth of wheel and tire ( 4x 8" wide wheels ) above the engine space. Back to the drawing board.  |
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Post by weekdayskier on Oct 19, 2016 3:10:27 GMT
Hi, been reading for a few months. I actually bought a sport chassis, then changed my mind and made it the race version.
There's plenty of 1 3/4 tube clamps. For the race frame, you can mount any sports rack you want. Maybe it's not too late to convert yours. Exomotive sold me the pre cut and bent tubing
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