Roof rack type opionions

Submitted: Sunday, Aug 02, 2015 at 14:25
ThreadID: 129630 Views:2229 Replies:9 FollowUps:7
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Hi all,
Looking at a few racks and thinking about fuel use, ive narrowed it to a platform rack or the platform with just side rails. I like the full cage but i think even with a 20kg alloy cage, fuel will b worse than 40kg steel platform. From your experiences, would you choose one other the other for any reason? Im only carrying oztrail tent (1.4m) a pram n bits and pieces plus awning, so weight not an issue.
Thanks.
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Reply By: david - Sunday, Aug 02, 2015 at 15:36

Sunday, Aug 02, 2015 at 15:36
Hi Shmick

In my experience the weight of the rack won't have much effect on fuel use...but the wind resistance will. Once you put things on it, won't matter what the rack weighs. I'd go for the ally rack.

cheers David
AnswerID: 588223

Reply By: Nomadic Navara - Sunday, Aug 02, 2015 at 15:38

Sunday, Aug 02, 2015 at 15:38
If you are worried about fuel consumption then perhaps you should be looking towards aerodynamic ladder bars and narrow pods for your load.



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AnswerID: 588224

Reply By: shmick - Sunday, Aug 02, 2015 at 20:27

Sunday, Aug 02, 2015 at 20:27
thanks for the quick replies. i should have mentioned im not too fussed about fuel when loaded, more so during everyday duties when its not in use (since i wont remove it when not touring).
can you think of any reasons where the side rails, or no rails will be better/worse than fully enclosed rack? i cant really think of anything except it would be easier to secure non square objects like gas bottles (which I don't use) or firewood.
i figure aerodynamically regarding fuel there should be little difference between flat platform and tradesman style (just side rails). If i can get a scenario that the front or back rails would help enormously i might go for full enclosure.
thanks again.
AnswerID: 588232

Reply By: 322 - Sunday, Aug 02, 2015 at 20:30

Sunday, Aug 02, 2015 at 20:30
I have an alloy rack. I thought at first it was over priced, but I'm glad I paid the money for it. I have walked on it myself and it hardly flexed. And I weigh 120kgs. I'd like to see the difference in fuel consumption figures between a full rack and a low profile rack. Especially when they're both loaded.

This is just another Holden vs Ford, Toyota vs Nissan argument.
AnswerID: 588233

Reply By: spanner1969 - Monday, Aug 03, 2015 at 19:16

Monday, Aug 03, 2015 at 19:16
Hi schmck

Like 322 I have an allow - ARB full Roof rack , why as I'm only carrying gear not roof top and can be easily removed for cleaning roof with two good men.
Happy with my choice as for fuel don't care needed to carry gear fuel goes with it easy choice for my uses
Spanner
AnswerID: 588818

Reply By: Jeffrey B2 - Monday, Aug 03, 2015 at 19:54

Monday, Aug 03, 2015 at 19:54
Hi SmiIk,
if you send me an Email address I can forward a heap of photos of my ARB alloy rack which was origonally on my cruiser.

Now mounted on the pipe racks on my Colorado ute and easy to remove when
not required.

Carries 12 foot tinnie and portable boat trailer.

Fuel bill must go up but certainly not by much.

Recent trip 7000 km. 13.9-----14.1 with a 16 foot "Golf Pop Top" in tow.

I am sure the boat and rack lower wind resistance of the van.

Over to you.

Have fun Haji-Baba
AnswerID: 588820

Follow Up By: shmick - Tuesday, Aug 04, 2015 at 22:03

Tuesday, Aug 04, 2015 at 22:03
no idea how to privately send email address. probably not wise to post it publicly?
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FollowupID: 856658

Follow Up By: Jeffrey B2 - Wednesday, Aug 05, 2015 at 20:01

Wednesday, Aug 05, 2015 at 20:01
Shmick, offer still stands, agree, public post is not the way to go.

If still interested ring me on my mobile 0408 156 903.

Photos all ready to send.

Haji-Baba
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Reply By: shmick - Tuesday, Aug 04, 2015 at 12:58

Tuesday, Aug 04, 2015 at 12:58
Jeffery, il PM email later tonight, thanks.

In terms of flat platform versus something with rails all around, are thrre any major benefits for one over the other, since everything will be tied down anyway?
AnswerID: 588839

Reply By: nickb - Tuesday, Aug 04, 2015 at 13:39

Tuesday, Aug 04, 2015 at 13:39
I would at least get the side rails, it makes tying down things much easier.

I have a full length allow cage rack and it is great for just throwing things up there and tying down with a ratchet strap. Side and front rails take the load and the strap just holds it to the rack. Without the sides and front bars the rope/strap is taking all the side, front and up/down loads as well as holding it to the rack.

Hope that makes sense!
AnswerID: 588840

Follow Up By: shmick - Tuesday, Aug 04, 2015 at 21:56

Tuesday, Aug 04, 2015 at 21:56
certainly does. thanks.
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Follow Up By: shmick - Tuesday, Aug 04, 2015 at 21:58

Tuesday, Aug 04, 2015 at 21:58
the prado has some significant body roll so side rails would be a very nice feature.
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Reply By: Australian Landscape Jewellery - Wednesday, Aug 05, 2015 at 14:13

Wednesday, Aug 05, 2015 at 14:13
I don't think the weight of the rack makes much difference to fuel consumption, well not directly. Roof racks really eat into fuel. It is better therefore to take them off when you don't need them. And in my experience, that's where the lighter racks are of most value. Heavy ones can be a pain to get on and off relative to light ones, so you tend to leave them on.
The alternative is to look at a good system for removing/storing the rack. Like many people, I have a pulley/winch system in the garage roof that makes the job easy.
And whether you get a light or heavy rack, get one with a wind deflector at the front. They make quite a difference to fuel use. The big trick with wind deflectors is to position them correctly so they can do their job. You need the deflector to continue up above the windscreen so that the airflow is broken as little as possible as it goes up over the windscreen and then continues up over the rack deflector. You can never do this perfectly but the smoother that front edge flow, the better your fuel figures.
A deflector is particularly beneficial if you have a grid in the bottom of the rack.
AnswerID: 588882

Follow Up By: shmick - Wednesday, Aug 05, 2015 at 18:44

Wednesday, Aug 05, 2015 at 18:44
Agree. Unfortunately my house has no garage, thats why im considering no front rail ie. tradesman type as ill have nowhere to store it. Seems ill just bite the bullet and work with it, or buy a smaller tent. Or leave the kids at home. Now thats an idea.
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FollowupID: 856700

Follow Up By: Australian Landscape Jewellery - Wednesday, Aug 05, 2015 at 19:00

Wednesday, Aug 05, 2015 at 19:00
OK, if you can't take it off my first priority would be to have a wind deflector on the front, and make sure you have a rack where you position it to line the deflector up to give as smooth a windflow as possible from the line of the screen and up the front of the deflector. If it is going to stay on the vehicle all the time look carefully at where the metal from the rack is in contact with your car. You don't want metal to metal as this will start electrolosis and rust. You want plastic or rubber covers over the feet (or even better, over the full length foot if the rack is designed like this) of the rack.
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FollowupID: 856705

Follow Up By: shmick - Wednesday, Aug 05, 2015 at 19:58

Wednesday, Aug 05, 2015 at 19:58
Thanks for the tips with the rubber. Will implement that. As for deflector over windscreen, the prado mounting points are quite a distance from the front so a full rack has a huge overhang which i will avoid for both aesethics and safety. Did u ever drive without deflector to compare wind noise or even fuel econ? The opinions seem mixed on deflectors.
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FollowupID: 856709

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