My Custom Luggage Rack
The rear seat modifications with extra generous 2nd row leg space and the short wheelbase of my fourknotfour had made the luggage space to a bare minimum. Hardly 3 medium sized duffel bags would fit in properly. Any larger then the second row seats backrest would had to be upright or it would try to come out through the rear vinyl hood.
Lots of thinking and a roof rack had to come for any long trips with more than 2 occupants. Looked for compatible racks and none caught my eye , neither were any readily available. Inspired by many good designs of thule racks and our very own diamonds and rhinos I decided to fabricate one locally as per my liking.
Materials:
¾ inch square iron pipe heavy duty for the main frame.
Lighter one for the subsidiary inner connections.
Aluminium netting for base.
Multiple bolts for bungee tiedowns.
Parabolic Strengthened Brackets from an old roof rack modified for size.
13 No Bolts and Plastic Moulded Bolts from old roof rack
4 No 35 W Pearl halogen Yellow Rectangular Lamps
Tin Sheet for Wind Deflector
Construction /Fitting/ Painting /Wiring
The frame was constructed with heat tempered bends and welded as per measurements covering basically A to B pillar width.
The parabolic brackets were adjusted for the racks height and just above the roof canvas and then welded onto it. The anterior part dips lower than the posterior part. Two of the brackets on either side are connected by a metal to distribute the weight along the whole rain channel and not cause undue pressure over four points. The clamping system is made with sheet metal and each of the four ends are clamped with the channel and bolted with a nut and covered with a PVC encased nut knob for visual asthetics. So basically double bolting. Aluminium netting is riveted underneath the whole frame .
The front end gets a cross bar so that luggage deaccelerates against it on hard braking and doesn’t break the bungee. Also the middle part I have designed a small wind deflector and have installed four fog lamps 2 on either sides of it .
The whole setup is then painted and installed. It takes around 15 minutes to install and another 10 to uninstall and just a spanner and two persons.
Wiring is done for foglamps using a heavy duty 300 W relay and Double action pull switch on two circuit each for 2 lamps without any connection to the main wiring. It can be lit without the ignition key.
Total cost including Roofrack Painting Lamps and Wiring was around Rs 9000/-
Luggage Tie Down Points: I have welded multiple (more than 15) bolts on the inner side of the main frame and elsewhere inside . Luggage is tied down using Bungee through these points.
Usage/ Review:
Recently did a 3000 kms trip where I carried 3 loaded trolley bags up there tied down with 6-7 Bungee cords with absolutely no problem. I climb up through the dashboard to tie the luggage.
No extra wind noise – infact the canopy fluttering decreased.
Fuel efficiency hit by -2km/l from 12kmpl to 10-11kmpl this time with roof mounted luggage.
Handling: Highways/ Expressways: No difference
Hills: Hardly noticeable difference in handling
Rough Roads: Need to tie down the luggage more securely as there is only one side support bar in the front.
Quote:
Originally Posted by Tanmay K Doc, would love to see some pictures of your roof rack if you get a chance to take some. |
Here are some pictures I had.
Fabrication in Progress
Fabrication in Progress
Fabrication in Progress
Front View with Luggage
Front view with No luggage.
Rear with luggage
Rear View with No luggage ( Notice its hardly Visible )
Side Views
Top View
Top View with Luggage and Me on Top to tie down luggage.