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General => General Discussion => Topic started by: rocket327s on May 06, 2013, 04:39:01 PM

Title: Stoneguard or NO Stoneguard
Post by: rocket327s on May 06, 2013, 04:39:01 PM
Jayco Dove Outback..... Dragged my Dove to Cardwell and not impressed with fuel consumption.
I think i have 2 causes for bad fuel economy (apart from the tug ... Nissan Navara D40).
Does anyone agree that the stoneguard as well as the bed flies (which ride up during travel) are the main culprits?
All this apart from the stoppages for roadworks between Ingham & Cardwell which I realize contributed
Am considering removing the Stoneguard BUT i will be travelling from Townsville to Port Lincoln via Birdsville, which i believe is dirt road & I would expect stone chips.
My dilemma is to
1... remove or not to remove the stoneguard, and
2....find a way to tie down that troublesome bed fly.

Any suggestions?

Title: Re: Stoneguard or NO Stoneguard
Post by: Kit_e_kat9 on May 06, 2013, 04:51:13 PM


Removal?  Guess that depends on how many stone chips you like ... on your back window as well as the Dove.

Bed Flies?  Can of mortein should fix those!   ;D

Kit_e
Title: Re: Stoneguard or NO Stoneguard
Post by: Bird on May 06, 2013, 05:06:03 PM
Quote from: rocket327s
I would expect stone chips.
**** loads. and as said, you run the risk of stones flying up against the window
Quote
Any suggestions?
Stone stomper
Title: Re: Stoneguard or NO Stoneguard
Post by: Chris-Vi on May 06, 2013, 05:25:10 PM
You would think your stoneguard would be in the slipstream of the ute and not affect fuel consumption too much. I found you still need rear window protection even with a stoneguard. We have the same dilemma at the moment with our van. Am thinking of getting the front sprayed with ute liner material to prevent stone chips and a stone stomper.  :cheers:
Title: Re: Stoneguard or NO Stoneguard
Post by: matt r on May 06, 2013, 05:34:29 PM
hi
whats the difference in consumption is it really worth the effort and possible damage :cheers:
Title: Re: Stoneguard or NO Stoneguard
Post by: KingBilly on May 06, 2013, 06:10:33 PM
Unless your stoneguard is super wide, I would agree with Chris and reckon it is in the slipstream of your ute.  Suggest the little extra fuel you would be using for the stoneguard (if any) is far better than the stone chips or a busted rear window.

KB
Title: Re: Stoneguard or NO Stoneguard
Post by: Bird on May 06, 2013, 06:27:21 PM
Jayco Dove Outback..... Dragged my Dove to Cardwell and not impressed with fuel consumption.
what were the figures?
Title: Re: Stoneguard or NO Stoneguard
Post by: JCOJ on May 06, 2013, 06:29:49 PM
Get a StoneStomper - better protection and no wind drag - a win all round!
Title: Re: Stoneguard or NO Stoneguard
Post by: GeeTee on May 06, 2013, 06:44:23 PM
A stone guard tucked in behind the vehicle will make very little difference... remove it and you drag the face of the caravan through the breeze instead..   ;)

Do you have bar, tyres and roofracks? Towing or not, that trifecta is worth 3-5L per 100km depending on your cruising speed

Title: Re: Stoneguard or NO Stoneguard
Post by: rocket327s on May 06, 2013, 07:25:20 PM
figures are 4.5 k/l
22L/100km

as i said this is over Cardwell Range & countless stoppages due to roadworks.

Maybe the biggest problem is the drag caused by the bed flys, haven't found a way to keep them DOWN during travel....... or maybe even the tug.???
Title: Re: Stoneguard or NO Stoneguard
Post by: Red1 on May 06, 2013, 07:27:13 PM
I would rather have the guard and maybe put a bit more fuel in the car, but I can't see that it would matter as others have said, it is in the slipstream of the car. After a trip down the Gibb river rd without a guard, only a rubber flap behind the Patrol, we had to get a new front put on the Hawk we had at the time.

Hope this helps

Cheers
Title: Re: Stoneguard or NO Stoneguard
Post by: ehsc on May 06, 2013, 07:39:36 PM
Hi Rocket327s

I also have a dove I agree with others the stone guard and bed fly's would not make a lot of difference . I feel it maybe that the jayco is probably about 150mm wider each  side than the d40 hence the extra drag out of slip stream .

I use to have a pathfinder and a hard floor trailer about same weight as jayco when I changed the camper to a jayco the fuel economy nearly doubled  compared to when hard floor was being towed .

When I sold pathfinder and bought a patrol I found the fuel economy with or with out camper on was not that big a difference to worry about it the only thing I put it down too was that the patrol is much closer to the same width as camper

Hope this makes sense  :cheers: ehsc 
Title: Re: Stoneguard or NO Stoneguard
Post by: mr_hilux10 on May 06, 2013, 07:46:21 PM
We have a  hawk with a "d flector" stone guard which is brilliant
It is the same width as the camper and tug (have a dual cab with tray) so it has no extra drag
Title: Re: Stoneguard or NO Stoneguard
Post by: Chippy76 on May 06, 2013, 07:55:45 PM
What is the weight of your CT and tug fully loaded ? The increase in GVM, and ATM would no doubt be a significant contributing factor to your fuel consumption.

1.  I would leave the stone guard for the sake of the front of my CT
2. (assuming it is a soft floor CT) would a tight trailer net help to pull the fly down tight and reduce drag ?

Cheers Chippy :D
Title: Re: Stoneguard or NO Stoneguard
Post by: rocket327s on May 06, 2013, 07:58:16 PM
thanks for the replies/suggestions ... i guess i was hoping for a miracle cure but i DO see the sense in keeping it..it was a half hearted thought or maybe frustration.
I am prepared to see what happens on less arduous trip.
Title: Re: Stoneguard or NO Stoneguard
Post by: rocket327s on May 06, 2013, 08:00:38 PM
Chippy it's a Jayco Dove Outback, can't see a net fitting it. but thanks for the suggestion
Title: Re: Stoneguard or NO Stoneguard
Post by: 2003gxl on May 06, 2013, 08:09:34 PM
I cut a ockey strap in half and put the screw holding the bag fly threw the cut end and hook in onto the grab handle on camper. Just have to remember to unhook before winding camper up. have done a few trips and it has not moved.
Title: Re: Stoneguard or NO Stoneguard
Post by: Chippy76 on May 06, 2013, 08:14:26 PM
I  had to google the jayco dove. But would a coupple of pull tied downs like this http://www.usegrunt.com/products-tie-downs.html (http://www.usegrunt.com/products-tie-downs.html) help to stop the wind resistance. Im not sure how the fly attaches or secures down. I hope this is of some help...

Cheers Chippy :D
Title: Re: Stoneguard or NO Stoneguard
Post by: Swannie on May 06, 2013, 09:22:09 PM
Just put the bed fly poles in the fly bag. The weight stops it from flapping.

Swannie
Title: Re: Re: Stoneguard or NO Stoneguard
Post by: Ynot on May 06, 2013, 09:31:25 PM
I cut a ockey strap in half and put the screw holding the bag fly threw the cut end and hook in onto the grab handle on camper. Just have to remember to unhook before winding camper up. have done a few trips and it has not moved.

I did similiar when i had the Eagle.
I may have also forgot to unhook once or twice...

Sent from my Vox using Tapatalk 2

Title: Stoneguard or NO Stoneguard
Post by: BigJules on May 06, 2013, 09:55:57 PM
Diesel or petrol? If petrol, you've nothing to complain about.

Drive slower and steadily, see what that does.
Title: Re: Stoneguard or NO Stoneguard
Post by: rocket327s on May 07, 2013, 06:01:51 AM
Diesel.
The poles are in the bag, doesn't hold it down
Title: Re: Stoneguard or NO Stoneguard
Post by: Stone Stomper on May 07, 2013, 07:37:33 AM
On our Eagle I put some velcro straps on to hold the fly down.

Title: Stoneguard or NO Stoneguard
Post by: BigJules on May 07, 2013, 07:52:04 AM
That's terrible. I think you need to get the vehicle checked. That's 20% more than the worst I would expect. For eg I towed 3T tractor and trailer behind a D4D HiLux  at highway speed + from Sydney to Townsville and used about 18L/100km. The return with just 800kg trailer as quickly as I could yielded ~13 I think.
Title: Re: Stoneguard or NO Stoneguard
Post by: huggy on May 07, 2013, 08:46:26 AM
This is what Jayco Newcastle had to stop the bag flying up . So far they work just got to remember to unclip them before winding up
(http://i74.photobucket.com/albums/i253/huggy_01/ABE20147-055D-4C54-B63D-37A1569D62B6-4979-0000043E1585F653.jpg)
Title: Re: Stoneguard or NO Stoneguard
Post by: Bird on May 07, 2013, 10:21:09 AM
Any photos of your setup?
Title: Re: Stoneguard or NO Stoneguard
Post by: GeeTee on May 07, 2013, 10:56:34 AM
figures are 4.5 k/l
22L/100km

as i said this is over Cardwell Range & countless stoppages due to roadworks.

Maybe the biggest problem is the drag caused by the bed flys, haven't found a way to keep them DOWN during travel....... or maybe even the tug.???

That figure is not nice, but in those conditions, is not surprising. It is moving the mass up and down hills and from standstill to cruise that is using the fuel, not the stone shield.

If you want to to investigate your fuel use further, do a full-to-full taken freeway economy run over at least 200km. You will more than likely (hopefully!!) see the figure drop to the mid teens.

Maybe fix the flappy bits first!


 
Title: Re: Stoneguard or NO Stoneguard
Post by: rocket327s on May 07, 2013, 07:23:43 PM
OK, have just checked past logs on travel between Townsville & Gladstone without towing.
Results are vastly different with readings of

13 L/100k  &
8 k / L

A previous trip to Cairns without trailer
13.8L/100k &
7.25 k/L

A previous Cairns run with the trailer was
20.41 L/100k &
4.86 k/L

I think a LOT of the problem can be with the present roadworks particularly over the Cardwell Range & between Ingham & Cardwell (at the moment 9 stoppages). So continuous stop start contributing to poor performace. The tug only as 35000k on the clock.
I guess the D40 being a 4 cylinder diesel doesn't help either?
Title: Re: Stoneguard or NO Stoneguard
Post by: sunji06 on May 07, 2013, 08:08:55 PM
i would keep the stone guard.

 haven't had my camper long but been driving trucks for a long time and seen the damage done on viechle's with no protection.

cheers
Title: Re: Stoneguard or NO Stoneguard
Post by: BigJules on May 07, 2013, 09:51:00 PM
To answer your original question, I also strongly advocate keeping your stone guard.

On fuel consumption, check out this fuel consumption thread (http://www.myswag.org/index.php?topic=5851.0).
Title: Re: Stoneguard or NO Stoneguard
Post by: albany_nomads on May 07, 2013, 10:10:08 PM
Heres an image of how i use to secure the front fly bag on the old hawk

As for fuel consumption my Rodeo 3.5V6 consumes 18  litres per 100/km..(towing the Hawk)..BUT that is LPG
Title: Re: Stoneguard or NO Stoneguard
Post by: rocket327s on May 08, 2013, 08:12:15 AM
Thanks Big Jules, I feel a lot better after reading some of the figures in that thread.

As far as securing the bed fly, I like the Huggy idea & will investigate that.
Thanks all for your posts & ideas
Title: Re: Stoneguard or NO Stoneguard
Post by: rocket327s on May 10, 2013, 05:02:17 PM
In regards to keeping the fly bags down, I followed suit to Huggy & purchased a couple of similar brackets which I will fit .  Thanks everyone for your suggestions
Title: Re: Stoneguard or NO Stoneguard
Post by: huggy on May 10, 2013, 10:06:35 PM
Just make sure they sit out far enough so you can get the straps through easy
Title: Re: Stoneguard or NO Stoneguard
Post by: rocket327s on May 11, 2013, 08:57:20 AM
yeah, I measured the gap required for the buckle to pass thru  when i purchased  them, but on trying them they are a fraction too low...... looks like I need a spacer