intercooler

[woolgoolgaoffroad]

Hello all

Am looking at an option of doing a front intercooler onto my 80 series ( 1HDT  factory turbo diesel ) -  has anyone gone the Ebay way and bought one online ?
And if so - you happy with it ?

Kev

[two up]

I've used a eBay tube and fin 600*300*75 on a td42. Has had about 25psi going through it for the past 5 yrs. Is it as good as a $1000-1500 cooler, probably not. However it cools well and to date has been problem free.

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[Bird]

I've used a eBay tube and fin 600*300*75 on a td42. Has had about 25psi going through it for the past 5 yrs. Is it as good as a $1000-1500 cooler, probably not. However it cools well and to date has been problem free.

It would also depend on the ebay seller.

[two up]

It would also depend on the ebay seller.

? As Pauline says Please Explain.

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[RebsWA]

Are you thinking of an intercooler as a solo mod for your 1hdt engine?

[woolgoolgaoffroad]

Are you thinking of an intercooler as a solo mod for your 1hdt engine?

i was, I've done the exhaust and have snorkel. Just looking at getting fresh cold air in for a little more power,  is there any other mods that would suit ?

[Bird]

i was, I've done the exhaust and have snorkel.

I wouldnt expect an intercooler would do much on its own.

[RebsWA]

i was, I've done the exhaust and have snorkel. Just looking at getting fresh cold air in for a little more power,  is there any other mods that would suit ?

I think you will find no appreciable gain in power by fitting an intercooler to what you already have. 

[woolgoolgaoffroad]

I think you will find no appreciable gain in power by fitting an intercooler to what you already have.

oh ok.... i thought it was like forced induction of cold air into the turbo .  I think i saw on the Safari site they claim 28% more power and 25% more torque

[Bird]

oh ok.... i thought it was like forced induction of cold air into the turbo .  I think i saw on the Safari site they claim 28% more power and 25% more torque

With the turbo yes.

[RebsWA]

oh ok.... i thought it was like forced induction of cold air into the turbo .  I think i saw on the Safari site they claim 28% more power and 25% more torque

The intercooler is after the turbo. You probably read of fitting a turbo and intercooler to a 1HZ that is naturally aspirated.
My troopy is a factory turbo 1hdfte without intercooler. If it made any real difference I would have put one on a long time ago. I also have a 3" exhaust and a snorkle. To justify a intercooler I would need to up boost pressure, change injectors, fit voltage clamps, and other expensive bits that I just dont need. Power mods are fine if you really need them but can cause reliability issues if not done properly.

[woolgoolgaoffroad]

oh ok.... didn't see that bit on here http://www.safarisnorkel.com/intercooler/sc1hdt/sc1hdt.htm

I've had the pump done, larger lines. injectors done etc

[alnjan]

the cooler denser air from an intercooler will improve engine performance and economy.  But a lot of that come back to just how good an intercooler you put on

[RebsWA]

What was done to the injectors? Just a recon or higher flow rate?

[RebsWA]

the cooler denser air from an intercooler will improve engine performance and economy.  But a lot of that come back to just how good an intercooler you put on

In theory maybe but I have never seen any test results to confirm such gains with just an intercooler.

[alnjan]

maybe not test results but from blokes that have fitted them can confirm the improvements

[RebsWA]

maybe not test results but from blokes that have fitted them can confirm the improvements

Mmmm with respect, after blokes have spent a fair bit of money on an intercooler only its unlikely they will say "well, that was a expensive disappointment"

[alnjan]

Mmmm with respect, after blokes have spent a fair bit of money on an intercooler only its unlikely they will say "well, that was a expensive disappointment"

nah, just done cheap jobs.  Just added a cheap intercooler to their factory turbo vehicles. 

[Rumpig]

Mmmm with respect, after blokes have spent a fair bit of money on an intercooler only its unlikely they will say "well, that was a expensive disappointment"

noticed a decent power gain when mine was fitted going on seat of the pants driving. Vehicle was never dyno'd to know how much exactly, but being my daily driver I know how it felt before and afterwards.....the vehicle already had a DTS turbo fitted running a standard factory exhaust system which was very disappointing power wise (biggest waste of money ever I thought at the time), then nearly a week later (due to wife having a baby) the Beaudesert 3" exhaust system went on and it was a massive differance alround, then probably 6 months later the DTS front mount intercooler was added.
Doing all those upgrades to my 1HZ was a huge waste of money in the end I reckon, there was big power gains achieved over factory standard and the vehicle did take us on holidays towing the camper as far North as Darwin and South around Tassie,, but I wish I had ploughed that money into a 1HDFTE conversion instead (not that they were well known of back then though).

[Hookie]

It has to make some difference, whether noticeable is subjective and arguable. But getting cooler air in there is always a good thing for higher oxygen concentration and lowering engine temps.

A bigger intercooler is high on the list for people trying to squeeze a bit more power out of their 3 litre patrols.

You're sure as hell not going to make things worse. So if you can afford the gamble and aren't going to wallow in a pit of despair if it doesn't make much difference then I'd say go for it. If the ebay one makes a difference and doesn't last, you can decide if it's worth investing in a higher quality one. If it doesn't make a difference then just leave it on or pull it off.

If it was me I'd give the ebay one a go.

[RebsWA]

In conclusion, if you want to throw money at an intercooler only mod, for no measureable gain then go for it.
If nothing else you have some bragging rights. 

[two up]

How much boost are you running and what are your exhaust gas temperatures like.

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[duggie]

How much boost are you running and what are your exhaust gas temperatures like.

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Exhaust gas temps are only as good as your placement of probe , brand of gauge and brand of probe.


You can/could have 20 vehicles lined up and they will all give a different reading . Due to what I have stated above .

IMO - EGT's are only specific to your own set up / car .  Yep. don't deny that having a EGT gauge is handy , but you cant compare readings from other peoples setups .

[nab]

Some reckon just changing the intercooler, while not increasing horsepower noticeably, seems to increase throttle response and in general makes it nicer to drive.

[IanS]

If I understand the OP's situation he is proposing fitting an intercooler to a naturally aspirated engine, the reason that it wont make any difference to performance is that in a turbo charged engine the act of compressing the air heats it up, it then goes through the intercooler to bring it back down closer to the ambient air temperature. In a naturally aspirated engine you are drawing in air at ambient air temp and passing it through an intercooler which has air at the same temperature as your intake air passing through it, therefore you are not going to get any cooling effect. I would suggest that you would probably degrade the performance of the motor because you would be causing a restriction in the airflow by the intercooler itself and the increase in length of the air intake plumbing.