Driving in the heat

[jimr1]

I've just done a trip from Melbourne to Stradbroke Island for my sons wedding . I took the wife and two of my grandsons . We chose the Nule Hwy . I towed a single axle pop top van , that weighed about 1.5 tons loaded . plus loaded rack We stopped at caravan parks to brake the trip Sat on the speed limits . I haven't done this trip for quite a few years now , and was surprised by the growth in B doubles . It was very hot , looked like parts of the road were melting . We had the air running all the time . My fuel consumption was about 14.5 to 16 lts per 100km . I'm thinking about cruse control , the old right foot got very hot . The 110 didn't miss a beat very pleased with it . I don't envy truck drivers that do this for a living . They have my admiration !!.. Jim

[D90 orkney]

We did the same route to Fraser over Xmas holidays. Hot as well. My 90 performed awesomely but being on the 35s and doing 110-120 all the way my fuel consumption wasnt great. Got 350km to a tank. I wish 90s came with larger tanks

[Pocket Rocket]

I've just done a trip from Melbourne to Stradbroke Island for my sons wedding . I took the wife and two of my grandsons . We chose the Nule Hwy . I towed a single axle pop top van , that weighed about 1.5 tons loaded . plus loaded rack We stopped at caravan parks to brake the trip Sat on the speed limits . I haven't done this trip for quite a few years now , and was surprised by the growth in B doubles . It was very hot , looked like parts of the road were melting . We had the air running all the time . My fuel consumption was about 14.5 to 16 lts per 100km . I'm thinking about cruse control , the old right foot got very hot . The 110 didn't miss a beat very pleased with it . I don't envy truck drivers that do this for a living . They have my admiration !!.. Jim

What speed were you doing? It gets very hot in the cab if we do over 100km hr in either the 90 or the 110 when towing. There is a reason just can't remember why.

[jimr1]

What speed were you doing? It gets very hot in the cab if we do over 100km hr in either the 90 or the 110 when towing. There is a reason just can't remember why.
Out on the open Hwy sat on 110 often drifted up to 120 . I found it hard to sit at the speed limit That was NSW where the speed limit is 110 km . Vic and Queensland Max is 100 km . I suppose we all suffer the same problem of adjusting our speed down when we come to towns and dropping to 50 km There must be a name for it . My brain and eyes have to adjust . 50 km seems as though you are driving at walking pace after hours of higher speed .It was very hot up in the high 30s everything was hot even the windscreen and side windows . One of the first things I did when I brought my Defender was fit a raised air intake , there's no doubt these help , pulling air from down by the wheel is poor design . As for foot-well getting hot ? I think it just heat from the engine and gearbox . Lets face it they don't have the best insulation . Next time I do a trip like this I'll be looking at extra insulation , Maybe some carpet underfelt ? The thing is if you leave it in and it gets wet , it rots out and stinks . As for fuel I suppose I could have saved some $$ by driving slower . I found driving at the same speed as everything else , I didn't have B doubles overtaking me , It just seemed to work better . My Defender sat very comfortable towing at 110 km revving at 2.3 rpm . Jim

[ATH]

I lagged the exhaust on the Puma for those trips through spinifex country as it gets packed behind the exhaust which crosses the vehicle. We had it starting to smell as if it was just about to burst into flame on one trip and that made me decide to lag it.
It's also helped keep the cabin cooler as the floor doesn't heat up nearly as much on long runs.
Of course our D4 doesn't suffer from such things...... :D
AlanH.

[patclan]

I would just like to stop the hot air coming in through the handbrake, but I wonder if this would help move the aircon around the footwear better.

MUD Puma Heater Deflector (http://www.mudstuff.co.uk/mud-puma-heater-deflector.html)

[D90 orkney]

I lagged the exhaust on the Puma for those trips through spinifex country as it gets packed behind the exhaust which crosses the vehicle. We had it starting to smell as if it was just about to burst into flame on one trip and that made me decide to lag it.
It's also helped keep the cabin cooler as the floor doesn't heat up nearly as much on long runs.
Of course our D4 doesn't suffer from such things...... :D
AlanH.

I noticed the footwell, gearbox side was quite hot when doing long runs in heat. I was thinking about lagging my exhaust too. Makes a big difference?

[jimr1]

I lagged the exhaust on the Puma for those trips through spinifex country as it gets packed behind the exhaust which crosses the vehicle. We had it starting to smell as if it was just about to burst into flame on one trip and that made me decide to lag it.
It's also helped keep the cabin cooler as the floor doesn't heat up nearly as much on long runs.
Of course our D4 doesn't suffer from such things...... :D
AlanH.
Alan that's good advice , I suppose we all suffer a hot floor especially driving when the temp is up in the high 30s . That's both foot wells !!.. Jim

[DiscoMick]

I would just like to stop the hot air coming in through the handbrake, but I wonder if this would help move the aircon around the footwear better.

MUD Puma Heater Deflector (http://www.mudstuff.co.uk/mud-puma-heater-deflector.html)
Interesting. Thanks.

[In A Landy Down Under]

I would just like to stop the hot air coming in through the handbrake, but I wonder if this would help move the aircon around the footwear better.

MUD Puma Heater Deflector (http://www.mudstuff.co.uk/mud-puma-heater-deflector.html)

If the heat is coming from the handbrake then the current direction of cool air from the air-con, blasting out directly at your legs, would surely be the best place for it, no?

I can only think the "crude and annoying blast of hot air" mentioned on MUD's site, would only be for those in the UK using heaters in winter.

[stewie110]

If the heat is coming from the handbrake then the current direction of cool air from the air-con, blasting out directly at your legs, would surely be the best place for it, no?

I can only think the "crude and annoying blast of hot air" mentioned on MUD's site, would only be for those in the UK using heaters in winter.
That's correct, the heater creates a nice hot spot on the leg when it's on max temp and flow. The Mud product dissipates the heat so the whole footwell warms not just the spot on your leg.

My experience is that it is not very effective in Australian heats for air-conditioning as the warm floor is a greater surface than the cooling of the air conditioning.

I put magma wrap on my exhaust from the catalytic converter back. The temperature drop in the cabin was substantial. I am seriously thinking now about dropping the catalytic converter or figuring out how to wrap it up in magma... The air-conditioning is now much more effective on long trips towing.

[patclan]

I put magma wrap on my exhaust from the catalytic converter back. The temperature drop in the cabin was substantial. I am seriously thinking now about dropping the catalytic converter or figuring out how to wrap it up in magma... The air-conditioning is now much more effective on long trips towing.

I have removed the cat, wrapped the decat pipe and I removed the floor panels on both sides, painted them with a deadener then attached 10mm foil backed foam heat insulation inside and out, it keeps it pretty cool now, as I said my issue is just the hot air getting sucked in through the handbrake mount (when I have the windows open) will fix that some day. But it is definitely worth removing the cat for heat reduction, and the floor panels come out very easily so worth doing them also. I have an oil leak in the transfer case and even though I insulated around that it gets hot sometimes, usually when I need to top it up with oil :-).

Pat.

[PAT303]

I noticed the footwell, gearbox side was quite hot when doing long runs in heat. I was thinking about lagging my exhaust too. Makes a big difference?

Nope.
The heat in the foot well comes from the cat,the cabin heat comes from the gearbox/transfer case.You need insolation under the seat box-floor and a de-cat pipe. Pat

[TimNZ]

Is it just me or does the floor stay cooler if you keep the windows up? I generally drive with the drivers window down so I have somewhere for my arm to be, but I've noticed the floor/footwell doesn't heat up with the window up.

Cheers,

[AndyG]

IMHO I found lagging the exhaust dropped gear boc temp by 5C measured by a tms4, and cabin temp definitely. It only got better when I removed the centre muffler and lagged the straight thru pipe. I've left the decat in as want to be marginally legal

[Baytown]

After following this thread, I've just gone and purchased some silver Magma tape lagging and will give the appropriate attention to my exhaust system.
$33 for 15 m x 50mm off eBay.AU, delivered.
I've well insulated my floor area with Dynamat, Dyna liner and acoustic matting where required, and aluminium exhaust shield where the pipe work gets close to the floor, with very good results, so the tape can only make things better. Decat makes such a difference re heat in the cabin, although I still get a warm hand brake assembly.
Thanks fellas.
Ken

[D90 orkney]

After following this thread, I've just gone and purchased some silver Magma tape lagging and will give the appropriate attention to my exhaust system.
$33 for 15 m x 50mm off eBay.AU, delivered.
I've well insulated my floor area with Dynamat, Dyna liner and acoustic matting where required, and aluminium exhaust shield where the pipe work gets close to the floor, with very good results, so the tape can only make things better. Decat makes such a difference re heat in the cabin, although I still get a warm hand brake assembly.
Thanks fellas.
Ken

I can't find a decat pipe. Have you got one Ken? Where from?

[Baytown]

You can buy them from most of the UK big tuning fellas, but MRA Landrover in Brisbane made one up for me when they removed the Cat and did all the engine work.

[D90 orkney]

You can buy them from most of the UK big tuning fellas, but MRA Landrover in Brisbane made one up for me when they removed the Cat and did all the engine work.

Getting the centre muffler out tomorrow with a straight through pipe. Might ask him if he can make up a decat while it's there. Changed the note of the exhaust? Whistle?

[AndyG]

There is discussion elsewhere about the risk of overspooling the turbo, but this is hearsay on my part

[In A Landy Down Under]

IMHO I found lagging the exhaust dropped gear boc temp by 5C measured by a tms4, and cabin temp definitely. It only got better when I removed the centre muffler and lagged the straight thru pipe. I've left the decat in as want to be marginally legal

I Have a concern around legalities on this too. If I remove the decat, will it void my extended warranty with it being on the wrong side of legal?



After following this thread, I've just gone and purchased some silver Magma tape lagging and will give the appropriate attention to my exhaust system.
$33 for 15 m x 50mm off eBay.AU, delivered.
I've well insulated my floor area with Dynamat, Dyna liner and acoustic matting where required, and aluminium exhaust shield where the pipe work gets close to the floor, with very good results, so the tape can only make things better. Decat makes such a difference re heat in the cabin, although I still get a warm hand brake assembly.
Thanks fellas.
Ken

Interested to see the results as I almost ordered some from ebay myself the other night....I see supercheap do some cheap wrap too and I guess its similar quality/performance.


Getting the centre muffler out tomorrow with a straight through pipe. Might ask him if he can make up a decat while it's there. Changed the note of the exhaust? Whistle?

How much is the straight through costing? $100?

[Baytown]

No and no.
My truck is quiet (for a Defender) due to the amount of sound proofing I've installed, and while I'm use to the sound level in it, I honestly don't remember any change to the exhaust noise due to the decat.
Same with the Slick Shift, now Idont remember how sloppy the standard shift was and it's only 3 weeks since I installed that great mod.
Just do it!
Ken


Getting the centre muffler out tomorrow with a straight through pipe. Might ask him if he can make up a decat while it's there. Changed the note of the exhaust? Whistle?

[D90 orkney]

I Have a concern around legalities on this too. If I remove the decat, will it void my extended warranty with it being on the wrong side of legal?




Interested to see the results as I almost ordered some from ebay myself the other night....I see supercheap do some cheap wrap too and I guess its similar quality/performance.



How much is the straight through costing? $100?

No idea but yeah I imagine something like that. He only needs it for an hour