Defender 300TDI Intercoolers????Links Added

[MacFamily]

Iam just doing a bit of research not ready to spend the dollars just yet like to study/research things before going in head first, from previous experence's

I found this shop in Ebay just wondering if the dollars/performance would be worth the dollars in upgrading the intercooler?Also they list two different intercoolers but i cant see how the second one would fit were the factory one was?Which would be the best?Also whats the benifit of fitting silcone hoses instead of the factory rubber ones?

Also when fitting the intercooler would you then have to play around with the injector pump to get full benifit of fitting the intercooler?

Defender / Discovery 300 TDI Performance Intercooler - eBay Intercoolers, Performance Parts, Car Parts, Accessories, Cars, Bikes, Boats. (end time 20-May-08 21:34:12 AEST) (http://cgi.ebay.com.au/Defender-Discovery-300-TDI-Performance-Intercooler_W0QQitemZ290229532436QQihZ019QQcategor yZ130634QQtcZphotoQQcmdZViewItemQQ_trksidZp1742.m1 53.l1262)

Defender 300TDI Full Size High Performance Intercooler - eBay Intercoolers, Performance Parts, Car Parts, Accessories, Cars, Bikes, Boats. (end time 20-May-08 21:33:37 AEST) (http://cgi.ebay.com.au/Defender-300TDI-Full-Size-High-Performance-Intercooler_W0QQitemZ290229532369QQihZ019QQcategor yZ130634QQtcZphotoQQcmdZViewItem)

Cheers Azza

[Bush65]

Bit hard to tell a lot from your post. I don't feel inclined to track those on ebay to find out more.

Upgraded intercoolers for 300Tdi, are generally, in order of performance:

Slightly larger intercooler that replaces the stock unit.

Second intercooler in series with the stock unit - usually mounted below below the stock intercooler and radiator.

Full size intercooler. The largest intercooler that can be readily mounted in front of the stock radiator and a/c condenser. The stock intercooler is removed. More difficult if the vehicle is an auto (because of transmission cooler).

There are also air to water intercoolers.

Silicone rubber hoses are better for the heat and pressure.

To get best performance the injection pump and turbo wastegate are adjusted.

[MacFamily]

Thanks Bush65 for the info....Didn't relise the links were not working :oops2:..

[lnd130]

i spoke to dirk awhile ago the big intercooler requires ac unit removal ,not that you would notice it missing perfomance of my ac is negiable the small one bolts straight in but he couldnt give me performance increases

[rick130]

I'd also be concerned with engine cooling performance with the full width version, having seen how much the air conditioning condenser blocks air flow in a Defender.

You may need to upgrade the radiator, particularly if you tune up the fuel pump to match the new found potential from the bigger I/C.

[Bush65]

I will be fitting a full size intercooler in front of the a/c condensor in my disco - probably in the next 2 or 3 weeks.

Thanks for the reminder Rick - while I'm at it I may as well fit the upgraded disco radiator that I had in my rangie when it had a 300 Tdi.

[rick130]

Who's I/C are you using John ?

[MinniTheMoocha]

The prices of the intercoolers varies a lot. $450 - 1200 on ebay.

Which ones are worth going for?

Also how much is it to get the f/pump tweaked?

Is there anyone in Melbourne that can be recommended?

thanks

[B92 8NW]

The prices of the intercoolers varies a lot. $450 - 1200 on ebay.

Which ones are worth going for?

Also how much is it to get the f/pump tweaked?

Is there anyone in Melbourne that can be recommended?

thanks

Rankin Diesel in bayswater. Make sure you have an EGT gauge for peace of mind, and if the injectors have done 200,000 + , maybe consider changing them before just sending more fuel through them.

I had my 200Tdi Disco done like this and it fairly flew. Can't wait to have the 300Tdi done but the injectors have 220 on them and have a slight nailing under load, so I'll do those first.

[MinniTheMoocha]

Rankin Diesel in bayswater. Make sure you have an EGT gauge for peace of mind, and if the injectors have done 200,000 + , maybe consider changing them before just sending more fuel through them.

I had my 200Tdi Disco done like this and it fairly flew. Can't wait to have the 300Tdi done but the injectors have 220 on them and have a slight nailing under load, so I'll do those first.

My Defer has 234000km on the clock now and it could do with a little pep up. Will take your advice and do injectors first.

Have a few higher priorities though.

Which intercoolers would you recommend or who sells a good unit without being over the top?

[mcrover]

As long as air can pass through the intercooler easilly then there is no reason it should change how the radiator operates.

The air that is going through the air to air intercooler is not heated in any way so it SHOULDNT change the temperature of the air on the other side of it.

If the fins are fairly course rather than fine and tightly packed then it would still be efficient but wont make the radiator less efficient.

Just a question......has anyone made an intercooler that uses the cold side of the air con pipes to cool the charge air?

If the aircon is going to be running anyway, it may as well cool the air on the intake as well to maybe try to over come a bit of the power loss from the aircon pump.

[Bush65]

Rick, I'm waiting on an intercooler kit from Alisport in the UK.

I want to fit it to the disco for a trip coming up in July - following Madigan Line in Simpson Desert. I tried to have the rangie done for this, but it's not going to happen so have to prepare the disco again.

In the limited time that I have left, I thought getting it from someone who has a good name with supplying intercoolers for Land Rovers might save some of my time.

Regarding using the refrigeration cycle with intercoolers, I don't know of anyone who has done it, but would expect someone would have tried it.

For short events, it is common to use ice boxes, and some have used compressed CO2, to provide cooling.

[rick130]

As long as air can pass through the intercooler easilly then there is no reason it should change how the radiator operates.

The air that is going through the air to air intercooler is not heated in any way so it SHOULDNT change the temperature of the air on the other side of it.

If the fins are fairly course rather than fine and tightly packed then it would still be efficient but wont make the radiator less efficient.

<snip>

It's the simple function of increased air resistance in front of the radiator that causes the problem.
On the Defender I've logged running temps from no condenser to fitting the condenser on a cold winters day and it affected the temp immediately, particularly hill climbing. (the condenser is an off the shelf Sanden, with a very fine pitch)

A Land Rover engineer tipped me off years ago that during the Perentie development, they ended up running a very coarse pitch fin radiator, as it cooled much better than a fine pitch one, even though they dramatically reduced surface area.
The air was 'packing' up in front of the fine pitch version, regardless of road speed, leading to overheating.

It'd be something to do with the air pressure and flow in the engine bay.

[EchiDna]

plenty of articles on autospeed about intercooling, designs, water spray controllers etc etc...

look here: Browser Warning (http://www.autospeed.com.au/index.html)

and this link has the specific article on the maths of intercooler assessment before purchasing: http://www.autospeed.com.au/cms/A_109789/article.html

there also was a bulk buy/manufacture or whatever of uprated intercoolers run either last year or before that by "Jase" - do a search...

[taslev]

hi, just thought i would add my experience with fitting a full size intercooler to my 95 disco 300tdi , i got mine when in the uk and had it specially made to fit my model -auto with air con - i was given the option of the 50% larger volume to replace the orignal but wanted the full size one , i was told they dont do a full size one for disco's with auto & ac but they said they could make one and supply all the silicon hose's and adaptors . so i went for it , it cost me £600 ($1300 aus ) but when i got it i couldnt see how the hose's would go through the front to the mainfold , apparantly i didnt tell them that i had duel batteries installed as the pipes go through the passager side where another battery would sit , so i had re-design the condenser and a/c pipes ( fortunatley thats my job) i fitted a diiferent condenser and mounted it differently then i had to moved the auto cooler further out , my big intercooler now sits between the rad and the condenser but leaves the space where the orignal intercooler sat empty. as i have a winch the space under there is tight , my auto cooler just clears the condenser fans . performance wise im not impressed, it came with instructions to tweak the pump but i havent noticed much difference , i dont know if its because i have so much armour on my disco which had increased the weight by about 4 people when empty. im not sure but if anyones got any idea why i havnt got the performance it shpould give ( they said upto 35hp more) please let me know. if you or anyone is planning to fit one of these i can tell you how i did it.

[mcrover]

hi, just thought i would add my experience with fitting a full size intercooler to my 95 disco 300tdi , i got mine when in the uk and had it specially made to fit my model -auto with air con - i was given the option of the 50% larger volume to replace the orignal but wanted the full size one , i was told they dont do a full size one for disco's with auto & ac but they said they could make one and supply all the silicon hose's and adaptors . so i went for it , it cost me £600 ($1300 aus ) but when i got it i couldnt see how the hose's would go through the front to the mainfold , apparantly i didnt tell them that i had duel batteries installed as the pipes go through the passager side where another battery would sit , so i had re-design the condenser and a/c pipes ( fortunatley thats my job) i fitted a diiferent condenser and mounted it differently then i had to moved the auto cooler further out , my big intercooler now sits between the rad and the condenser but leaves the space where the orignal intercooler sat empty. as i have a winch the space under there is tight , my auto cooler just clears the condenser fans . performance wise im not impressed, it came with instructions to tweak the pump but i havent noticed much difference , i dont know if its because i have so much armour on my disco which had increased the weight by about 4 people when empty. im not sure but if anyones got any idea why i havnt got the performance it shpould give ( they said upto 35hp more) please let me know. if you or anyone is planning to fit one of these i can tell you how i did it.


hi,
just thought i would add my experience with fitting a full size intercooler to my 95 disco 300tdi.

I got mine when in the uk and had it specially made to fit my model -auto with air con - i was given the option of the 50% larger volume to replace the orignal but wanted the full size one.

I was told they dont do a full size one for disco's with auto & ac but they said they could make one and supply all the silicon hose's and adaptors, so i went for it.

It cost me £600 ($1300 aus ) but when i got it i couldnt see how the hose's would go through the front to the mainfold.

Apparantly i didnt tell them that i had duel batteries installed as the pipes go through the passager side where another battery would sit, so i had re-design the condenser and a/c pipes ( fortunatley thats my job) i fitted a diiferent condenser and mounted it differently.

Then i had to moved the auto cooler further out, my big intercooler now sits between the rad and the condenser but leaves the space where the orignal intercooler sat empty.

As i have a winch, the space under there is tight and my auto cooler just clears the condenser fans.

Performance wise im not impressed, it came with instructions to tweak the pump but i havent noticed much difference, I dont know if its because i have so much armour on my disco which had increased the weight by about 4 people when empty.

Im not sure but if anyones got any idea why i havnt got the performance it should give ( they said upto 35hp more) please let me know. if you or anyone is planning to fit one of these i can tell you how i did it.


Sorry to go through and puntuate it a little better but it was a good post just hard to read, I think that made it a bit easier to understand.:angel:

[PAT303]

What Rick said about the air not going through the rad is the same thing my local rad specialist said is the main problem with new vehicles.Every day we have the grey nomads enter town and 99% of them have grossely overloaded vehicles and overheating drama's.I asked him about my Defender and said cutting vents into the wings or louvers into the firewall end of the bonnet would be better than fitting a larger rad.Bullbars,spotlights,winches etc are all in front of the grill and the engine bays of most cars are packed solid and then sealed up to improve the VHS which is a selling point.The air into the bay is restricted and there is no clear way out once it gets there. Pat

[rick130]

<snip>.
I asked him about my Defender and said cutting vents into the wings or louvers into the firewall end of the bonnet would be better than fitting a larger rad.
<snip>

actually, further forward is better.

The base of the windscreen is a high pressure zone (remember the rearward facing bonnet scoops on A9X Torana's ? )
The best spot is the first third to half way along the bonnet. (look at an EVO Lancer, or a Panoz ALMS car for where they vent the under bonnet air)

I've wool tuff tested a Defender and a GU Patrol (bet Land rover have never done that ! :D) and the top of the wings weren't real good for flow, either, partly as the underbonnet air is coming out of the gap between the bonnet and guard.
I removed the false vent in the drivers side and was actually getting flow reversion into the engine bay.
Vents in the side of the guard behind the wheels should work, as that would be an area of low (disturbed) pressure.

Raising the trailing edge of the Patrol bonnet resulted in flow into the engine bay (which is what I expected, but wanted to prove it)

[xrayxray]

I will be installing some rear facing louvers on the bonnet just back from where the thermostat housing is.
I have an Allisport intercooler and larger capacity Alloy Radiator ordered so I want the engine bay to ventilate allowing a flow of air over these units,I have removed the Air con and have an extended grill housing to go on so hopefully this will aid in keeping everything cooler.
Mickey.

[taslev]

have to say that even though my disco is loaded at the front end i have no problem with over heating or ride hieght. i dont even have the viscous fan on anymore. it will stand for hours running and not overheat. i do have a kenlow fan fitted and all my cooling system is new. plus i have a winch bumper which mounts the winch lower than the ones ive seen here in Australia. due to the design of the winch bumper i have lots of access below that allows air to hit the rads etc.
i have two a/c condensers fitted , one at a 45 degrees angle from the back of the winch downwards towards the axle . it is protected with a 5mm steel guard and has a fan attached to the back of it.
i have put an industrial fan in front of the vehicle and tested to see how well the air is getting through all the rads and it comes through quiet powerfull .