Thread: 10,000km tow test: D4 vs LC200, Munja Track

The dust enters because the air-box isn't sufficiently rigid and the lid isn't sufficiently attached so gaps occur on rough roads and tracks. My SIL coats his filter seals with grease which reduces dust ingress but doesn't stop it so he's going to invest in a metal air-box which uses the standard Toyota filter before his up-coming trip to the Kimberly area.

Originally Posted by scarry

And the more I look at those Yota forums,the more I think when you have an LC,either a 200 or a 70,it seems the purchase is only half the car.

The rest of the cost goes to ARB,Roo systems,or whoever....

... portals, 6x6, service bodies, chassis extension, Cummins engines, autos, rear track correction ....


I must admit that I find it hard to understand spending $90k on an LC200 and then cutting it in half to make a ute - wouldn't towing a trailer be the cheaper option?

Originally Posted by trout1105

Maybe it has more to do with the quality of the filter and the frequency of changing them out than the design of the air box itself.
I know for a fact that IF I put a crappy air filter into my D2a V8 it will "dust up" very fast But when I put a top quality filter in there and change it every 20,000k or even more often on really dusty tracks I have No problems at all with "Dusting up".
I have found that since fitting the snorkel to the D2a I can now extend the filter service by at least 10,000k as well.
I imagine IF the L200 owners( and just about any other brand/model) followed a similar regime with their air filter then "dusting up" would be a thing of the past.
I wonder how the new D5's will fare on the super dusty black soil tracks with their super long extended services, These long periods between servicing especially in harsh conditions seem like a recipe for disaster to me as is taking your air filter for granted in ANY 4WD.

Nothing to do with the filter quality, also changing them frequently isn't a great idea, it's to do with the filter housing.

Originally Posted by trout1105

Maybe it has more to do with the quality of the filter and the frequency of changing them out than the design of the air box itself.
I know for a fact that IF I put a crappy air filter into my D2a V8 it will "dust up" very fast But when I put a top quality filter in there and change it every 20,000k or even more often on really dusty tracks I have No problems at all with "Dusting up".
I have found that since fitting the snorkel to the D2a I can now extend the filter service by at least 10,000k as well.
I imagine IF the L200 owners( and just about any other brand/model) followed a similar regime with their air filter then "dusting up" would be a thing of the past.
I wonder how the new D5's will fare on the super dusty black soil tracks with their super long extended services, These long periods between servicing especially in harsh conditions seem like a recipe for disaster to me as is taking your air filter for granted in ANY 4WD.

Umm,no I used OEM filters only.
Grease around the filtervdid help but didnt totally eliminate the issue.

What did help the most was a snorkle,only because the air coming in was cleaner.

It’s just a poorly designed airbox.

I don't think most snorkels reduce dust. Great in river crossings, although what deep water might do to a D4's electronics is a concern to me.

The snorkels I liked were those with a cyclonic dust removal design. But those seem mostly to have gone. And with bulldust, I don't think they'd separate the bull dust anyway, unless they incorporated a filter.

And when I look at dusty roads, I don't see less dust at the snorkel height than at the air inlet height. I see a road with dust evenly distributed if the dust is due to a vehicle that is a minute up the road. And if the snorkel provides a ram effect, then IMO that would makes matters more difficult for the air filter.

Originally Posted by Melbourne Park

I don't think most snorkels reduce dust. Great in river crossings, although what deep water might do to a D4's electronics is a concern to me.

The snorkels I liked were those with a cyclonic dust removal design. But those seem mostly to have gone. And with bulldust, I don't think they'd separate the bull dust anyway, unless they incorporated a filter.

And when I look at dusty roads, I don't see less dust at the snorkel height than at the air inlet height. I see a road with dust evenly distributed if the dust is due to a vehicle that is a minute up the road. And if the snorkel provides a ram effect, then IMO that would makes matters more difficult for the air filter.

From my experience it makes a massive difference,Sure there are a huge amount of variables,but I had one D2 without a snorkle,then another with.
Ram effect is actually minimal,particularly for a diesel.

Most snorkles actually reduce airflow slightly.Thats also why they whistle at different revs on some vehicles.

Just ask anyone that works on vehicles that run on LPG,as very small changes to intake air flows and pressures upset mixtures,which cause issues.LPG engines are very sensitive to intake air changes.

Originally Posted by Ean Austral

X 2

Cheers Ean

x3

I thought this thread was about fuel consumption...?

Originally Posted by Ean Austral

X 2

Cheers Ean

Where'd Ean go?