interecooler in td, and tyres

hi everyone, i hope you are all having a good weekend, im sorry bout all the questions, im a little new but i promise all your ideas and information im really learning alot.

i would lilke to know, i have a 2.5td that as you know im going to go traveling in, i no i should really have, and get a 200tdi, but im so short of cash this is really looking impossible, so i was wondering if any of you mechanicall wizzards out there could tell me if adding a intercooler would make it a little better, in both performance and reliability, its not perfect but im hoping this will make it a little better.

thank you again guys and galls

oh, last question, (rather than taking up space on the forum) what are the biggest bf goodrich at tyres are good get for a standard lift landrover (it has heavy duty suspension which makes it stand a little taller) im looking at 235/85/r16 any help again people and thank you again

235's will do you fine. no more than 265's though... thats your limit. dont know about your intercooler though as i have a n/a id imagine it would be a fiddle to mount and plumb in for little to no gain. our 2.5 engines (n/a and TD) were never designed to run one.

G

nathan lansdell said:

if adding a intercooler would make it a little better, in both performance and reliability, its not perfect but im hoping this will make it a little better.

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i think you'd have to alter the fueling to get any benifit, which might over complacate a repair if your out in the middle of nowhere expecting a native with a pointed twig to repair your landy

but if your big adventure only involes you getting out of whatever county your in now - suck it and see

If your going travelling simple is always best the less electronics, ECU's there are the better. Also the more standard a vehicle is the easier it will be to find spares. Bigger tires may look good. But finding replacements might not be so easy.

Provided you stay well on top of the maintenence and servicing and don't try to drive it like it's a brand new performance car there's no reason why a stock TD won't do everything you want it to. How much extra performance do you think a Tdi has over a TD anyway? They're ridiculously close really... neither of them is fast. If it was me - I'd not bother with changing the intercooler.

235/85/16 BFG AT's will fit your standard height landy just fine - putting them on 6.5" or 7" (width) rims will make them slightly less inclined to climb off a rim than putting them on 6" stock rims.

Cheers,

hi people,

once again, you have all come up trumps with some advice, i think ill stick with the engine for now, and mabey, in the future funds will come avaliable and ill change it, i think if i just keep the oils, filters etc topped up and changed regulally this truck should last, (im planning on a 6 month trip to ghana next sept) so all should be good.

thank you again everyone,

nathan

perhaps you should consider a n/a? a bit tougher than a td and returns more mpg' but dont intercool it , you might regret it.
also if it were me id be looking at michilin xzy's rather than bf's.
i googled them and from what i could gather people who ran bf's through africa ended up with the bf's in shreds but the xzy's came through smelling like roses.
you can buy em here.
http://www.vass.co.uk/tyres.htm
i hear though brand new ones , if you can find them , are around 170 quid each.
general sag's seem to be a popular choice as well but maybe a bit noisy.

There would be NO point whatsoever in fitting an intercooler to a N/A engine.
It would serve NO useful purpose, would NOT cool the incoming charge of air (how could it?) and it would add drag to the inlet tract and thus reduce performance by restricting the air flow.

The ONLY time an intercooler can help is when the inlet air is HOTTER than it was when it was sucked in. It gets hotter by compression and agitation in the turbo, and consequently (because it is hot and expanded) even though it has the pressure and volume, there is LESS MASS of air than there would be if the same volume and pressure of air was a bit cooler.

MORE AIR is good in most diesels. There is no question about fuel/air ratios or the like. Just stuffing in more air WILL make a diesel more efficient, and thus more economical and more powerful.

Ram it in, I say.

CharlesY

CharlesY said:

There would be NO point whatsoever in fitting an intercooler to a N/A engine.
It would serve NO useful purpose, would NOT cool the incoming charge of air (how could it?) and it would add drag to the inlet tract and thus reduce performance by restricting the air flow.

The ONLY time an intercooler can help is when the inlet air is HOTTER than it was when it was sucked in. It gets hotter by compression and agitation in the turbo, and consequently (because it is hot and expanded) even though it has the pressure and volume, there is LESS MASS of air than there would be if the same volume and pressure of air was a bit cooler.

MORE AIR is good in most diesels. There is no question about fuel/air ratios or the like. Just stuffing in more air WILL make a diesel more efficient, and thus more economical and more powerful.

Ram it in, I say.

CharlesY

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no , no , no i didnt mean intercool the n/a , i meant dont intercool the 19j.
do however fit a second electrical fan and an oil cooler.
i had problems with mine overheating on hot hill climbs. ive got a disco 11 gearbox oil cooler tucked down infront of my radiator cooling my engine oil but without a decent fan to pull the air through it it was pretty useless.

nobber said:

no , no , no i didnt mean intercool the n/a , i meant dont intercool the 19j.

Well ..... I don't know .... it might be worth a try ... Intercooling is free power and economy.


do however fit a second electrical fan and an oil cooler.

Definitely, and a switch in the car so YOU can turn the fan on when YOU want, which will be a couple of minutes BEFORE you hit the steep bits.


i had problems with mine overheating on hot hill climbs. ive got a disco 11 gearbox oil cooler tucked down infront of my radiator cooling my engine oil but without a decent fan to pull the air through it it was pretty useless.

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A good way to cool oil is a water-oil cooler in the bottom hose.
Air-oil coolers are more or less ineffective when it matters, and especially at slow speeds, in high temperatures. Use the water to take the heat away from the oil, and then that great big lovely radiator and fans will whisk the nasty heat away!

CharlesY