Improved fuel consumption achieved.

[Pepper]

I have previously reported poor fuel consumption on my 2007 crd auto,typically 4klm/litre towing camper and 6klm/litre not towing........i purchased a new snorkel head advertised on this site for $31 delivered to home,this appears to have approx 30% larger surface area....result when towing consumption over approx 2000k is worst 5.4klm/l to best of 6 klm/l ....also vehicle top speed significantly increased....eg will easily tow camper at 130k something totally impossible previously...struggled to hold over 110k on anything not totally flat.

Drove from lightning ridge to kiama yesterday with camper in nine and a half hours driving (approx 890klm) .

Anyone else tried this ????

[Ronin]

Do you have a link to that ad for the snorkel head ?

[jack]

Hi Pepper,
I'd be interested in that as well, I have good fuel economy until I add the van.

[Ronin]

Hi Pepper,
I'd be interested in that as well, I have good fuel economy until I add the van.

Hey Apollofish what fuel economy are you getting ?

[jack]

Hi Ronin, was previously getting around the 12l/100k mark - mainly country k's and taking it easy. Over the weekend took the van for a 400k tow, including dirt roads, up and down the Otways and sealed roads (good mixture but no 4WDing), 15.5L/100Km.
Van is a Jayco Eagle Off Road, would be about 1000kg as is, be about 1500kg loaded, plus another 200kg in the Patrol (I'll get it all weighed before the trip).
I know that's not to bad but wondering what it will be fully loaded and with the roof racks and awning on. Not to mention the 4WDing on the Cape trip in Aug. Although diesel is still the cheapest thing we put into the Patrol, I'm happy to get better economy if I can. Would like the detail on the snorkel head.

[threedogs]

@ appolofish you'd have to be happy with 15/100 can't see that getting much better, but even 1 litre would be an improvement.
down to 14/100

[Maxhead]

Hi Ronin, was previously getting around the 12l/100k mark - mainly country k's and taking it easy. Over the weekend took the van for a 400k tow, including dirt roads, up and down the Otways and sealed roads (good mixture but no 4WDing), 15.5L/100Km.
Van is a Jayco Eagle Off Road, would be about 1000kg as is, be about 1500kg loaded, plus another 200kg in the Patrol (I'll get it all weighed before the trip).
I know that's not to bad but wondering what it will be fully loaded and with the roof racks and awning on. Not to mention the 4WDing on the Cape trip in Aug. Although diesel is still the cheapest thing we put into the Patrol, I'm happy to get better economy if I can. Would like the detail on the snorkel head.

I reckon that's tops, definetly wouldn't be complaining.

I have heard some mixed results as far as snorkles are concerned....Great result Pepper

[threedogs]

Some were getting improved fuel figures from turning top towards windshield getting a RAM AIR effect

[Pepper]

It was on the "patrol parts "on this site it is also on ebay just search as...4wd snorkel...currently listed for about $39

[Winnie]

Is this the one?

http://www.ebay.com.au/itm/SNORKEL-RAM-AIR-HEAD-85mm-3-5-Replacement-4x4-4WD-Removable-Mesh-3-1-2-inch-KIT-/400369291173?pt=AU_Car_Parts_Accessories&hash=item5d37de8fa5&_uhb=1#ht_3798wt_1165

[Pepper]

yes thats the one.

[threedogs]

Whats 6km a ltr in english or ltr/per
100k I've never used fuel figures that way.
thats about 17/100k is that right ???

[janderson]

Please correct me if I’m wrong. With a non turbo engine the RAM AIR effect would be of great benefit. I know this from my NASCAR days. However on a Turbo engine I would think that it wouldn’t make a differences. If too much air is introduced wouldn’t it be released thru the waste gate?

[threedogs]

Was just reading it somewhere ,but would think it all stops at the air filter anyway.
Plus engine would only suck what it requires, IMO

[mudski]

I got a tad under 1100k's to both tanks in my GU last week. Was quite happy with that.
I can't see that snorkel scoop doing much at all different to a stock ARB/ Safari style one, if anything really, to what they claim but for the cost it doesn't hurt to try.

[happygu]

That is great economy Mudski, I normally don't come close to that with my vehicle, but I did get all the way from Melbourne to 50Klms past Horsham, a trip into the Grampians, back to the Eastern Suburbs of Melbourne fully loaded with roofrack and heavy motorbike trailer , and then to work and back for the last few days...must fill up tomorrow though.

Mic

[mudski]

Yeah since putting the 3inch zorst in its improved. I have a DP chip but I don't think thats doing anything to the fuel eco. It was hwy driving too. Best I see around town is around the 850'ish to both tanks.

[thelawz]

Do you think a larger snorkel head will improve fuel consumption on a petrol as well? What is normal consumption for a 4.5 petrol?

[Parksy]

Ram air does help, just has to be set up properly. If you pull off the head off the engine and ever wonder why the intake valve is larger than the exhaust, that's because the piston pushes out the exhaust fumes, where as the intake is only relying on vacuum to take the air in. Nothing to push the air in. So all the help is needed to get the air in.

[janderson]

Do you think a larger snorkel head will improve fuel consumption on a petrol as well? What is normal consumption for a 4.5 petrol?

Will help on a non Turbo Engine. But sometimes you can have too much air. When at highway speed it lacks power that would indicate to much air being rammed in.

[threedogs]

Bit off topic but what size tyres you running Mudski??
265s will see great fuel figures, but 285s or 305s will see a dramatic change.
Most here stating 10-11 /100 are on OE tyres
Most here stating 12-14 /100 have up sized

[happygu]

ThreeDogs,

I am running 33's, which I know added just over 1 Litre per Hundred to the usage...

Mic

[rochjas]

I got a tad under 1100k's to both tanks in my GU last week. Was quite happy with that.
I can't see that snorkel scoop doing much at all different to a stock ARB/ Safari style one, if anything really, to what they claim but for the cost it doesn't hurt to try.

Guys,

I recently drove to Melbourne to collect my camper.... I did the trip down to melbourne from sydney on just the main tank and coming home with trailer in tow, I did the trip using the main tank and 25 ltrs of the subtank... Was happy with that... I find when towing the camper, if I stick around 90 to 100KM/H on the open road I get fantastic fuel consumption... If I push harder the fuel useage is very very poor... I haven't got a snorkel.. however I am having one installed in around 10 days time... will be interesting then to see the difference...