The official 1HDT Intercooler thread

[perrobravo]

PDI any day of the week.

Gotta agree with @AussieHJCruza . I just installed a PDI intercooler (complete with replacement ATF cooler) on my HDJ81. Cost me a bit with shipping to San Diego, but the installation was straight forward and it is pretty darn sexy...oh and it also decreased EGTs which helps!

 

[Dilspec]

I went with Cross Country 4x4 top mount.

Nice unit

 

[IanB]

I went with Cross Country 4x4 top mount.

Nice unit

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I see you don't have a hole in the hood for a scoop, what kind of drop in EGT's do you see with minimal airflow through the core? Or have you since added a scoop and this was just during install kind of thing?

 

[Dilspec]

@IanB Those are install pics, below is how it sits currently with a Nissan Patrol hood scoop.

I saw about 50-75F drop in cruising EGTs at 70 MPH 5th gear. I used to be around 750F now I’m closer to 650-700F depending on my throttle input.

However, on mountain passes I dropped ~150F but that’s combined with the intake lid mod, snorkel, and the fan on.

Also still stock CT26.

Dont mind my horrible cutting skills and dirty bay.

 

[danakittilsen]

Finally joined the club.

Full Chinese knock off. As we've seen before here the heat exchanger has HPD stamped on the side.

It does seem to be a pretty quality build. The fan underneath does seem to pull air pretty well.

The fitment was actually spot on.

And the hood scoop looks very sporty. Better than I could have hoped, considering its not the 79 series scoop that I want.

Only issue is that I'm seeing a large boost pressure drop. With a manual boost controller I used to see a spike up to 15 usually and it would settle back around 10-11. But now it sits right around 4-5, spiking up to 7-8. The port to tie in the boost pressure line is on the intake manifold side of the intercooler.
I'm a little worried about what my turbo is doing on the other side of this heat exchanger. Especially with the noise the turbo is making. I'll try to upload a video.

I've heard both sides, turbo is muffled, turbo is louder after top mount intercooler. But mine also sounds like a screaming animal. Is it just that I have two giant holes in my hood that I can hear it so much better or is my turbo protesting, trying to push air through something that is too restrictive?

I do notice lower EGTs. The cruiser does seem to want to go faster.

 

[danakittilsen]

Couldn't post a video.
But needless to say, that despite all appearances, I felt my cruiser was not running as it should.
Asked around and a mechanic friend mentioned a boost leak.

The kit came with a threaded hole on the intake side of the intercooler, with a 10*1.5 metric set screw in it. And no other way to tie your boost lines in. It seemed that a female hose bard I had fit perfectly. However the hose bard was NPT and that small incompatibility was causing a big enough leak.

All sorted now. No sound, full boost.

 

[arnott1t]

Couldn't post a video.
But needless to say, that despite all appearances, I felt my cruiser was not running as it should.
Asked around and a mechanic friend mentioned a boost leak.

The kit came with a threaded hole on the intake side of the intercooler, with a 10*1.5 metric set screw in it. And no other way to tie your boost lines in. It seemed that a female hose bard I had fit perfectly. However the hose bard was NPT and that small incompatibility was causing a big enough leak.

All sorted now. No sound, full boost.

Still better performance as well?

 

[phatman81]

Is there room under the hood for them to be alternated higher and lower ( if you know what I mean, sort of like a honeycomb structure, but just two rows), as opposed to having them next to each other and flat. Just thinking the flow might be better that way. The only other setup I've seen using the laminova cores with is by a guy called Matt mccinnes (sp?). He made a pretty good setup using them on a turbo 2FE. I may be wrong but its something to think about before spending money on it to get things cut out

Those pictures look great BTW, wish I had the patience to design stuff like that

What if you were to use rectangular tubes ? ..

 

[phatman81]

Been talking with Jon from Cross Country 4x4

The simple cross country intercooler top mount I posted uses a patrol scoop.
Though he sent me this on a 1hd-ft though I am sure it can be set up to run on the 1hd-t with a different adapter.

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I do like the size of this IC ! .. Awesome seal / rammed air ! ..

 

[phatman81]

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it's tight but they're in there!

Love that radiator mate ! ..

 

[phatman81]

Hi Steve. I run the Safari intercooler on my 1HDFT (auto) drop in fit, I did however have to change the Auto transmision cooler for a more slimline cooler.

Unlike some, I use my 80 as a 4wd, My last trip was a tad over 6000 km, Up to & across the Simpson Desert to Alice springs, Toured central Australia & back down the hard way.

The 80 performed faultlessly. Not a problem with any thing.
Oh i did break a front sway bar mount that i got fixed when i got home. (Just to show i dont drive like a pussy on bittumin roads)

Hamo

Hamo, Tell all please .. I know your running a Safari but I don't know much about the rest of your rig .. Please enlighten me on the particulars .. I know there are those who go to excess when it comes to kitting .. How does one overcome the diff locker issue with independent front suspension ? ..

 

[phatman81]

When designing an intercooler we have as a refrigerant air and water .. I know a better refrigerant which is in most vehicles .. Its Freon .. So why not Freon ? .. Can their be such a thing as too cold ? .. Yes .. That is the reason why A2F systems don't exist BUT ! ! ! A2W2F can exist and must be thought of as a master stroke of genius .. Well I'm not the genius who dreamed it up first but I am the guy who just posted this idea here ..

Dodge W2F chiller diller killer ! ..

What a small unit like this will do is make it possible for a SMALL TUBE A2W IC work like Nut'n else ! .. Please tell me their are people just as crazy as I am who want to try a A2W2F setup ! ..

 

[phatman81]

Here is the W2F chiller that was designed for boost above 18 lbs .. Looking at the chiller, on the website, it appears to have 1/4" fittings .. That won't exactly work for a system with a 1" hose, will it ? ..

 

[danakittilsen]

Once I got the boost leak sorted it ran great. Amazing even.
Drove 800km down through the mountains just fine.
Spent a few days puting around my new home of Banff and something s*** the bed.
But that may or may not be a story for this thread yet. I'll know more in a couple of weeks.

 

[phatman81]

I have discovered a issue with all Freon to Water Chillers .. WOT / Wide open throttle the clutch in the compressor disengages to protect the compressor from over-pressures .. They were extremely well with an additional Air to Water radiator .. With an added 3-5 gallon sump WOT one can still run without causing inlet temps to rise very much ..

I have a question for anyone who uses a Water to Air Intercooler whose boost is > 20 psi .. What is the water flow rate that you use at what turbo psi ? .. I know this has a lot to do with which W2A Intercooler and what pressure drop you have but that information would be helpful as well ..

 

[Stephan Mester]

 

[Vitek]

Does anyone has experience with the allisport intercoolers?
As they are within EU, its a chepaer option for me than the PDI.
Allisport 1HD-FT intercooler

 

[phatman81]

Does anyone has experience with the allisport intercoolers?
As they are within EU, its a chepaer option for me than the PDI.
Allisport 1HD-FT intercooler

I don't know much about the EU but Chinese shipping is fairly inexpensive in the US .. That being said water to air intercoolers are typically between 25%-30% more efficient than Air to Air .. This is a link to a 1hdt 1hdft W2A intercooler kit .. There are many other Kits Listed Here .. This is an A2A IC from Ebay that is far less money than the Allisport ..

 

[AussieHJCruza]

I don't know much about the EU but Chinese shipping is fairly inexpensive in the US .. That being said water to air intercoolers are typically between 25%-30% more efficient than Air to Air .. This is a link to a 1hdt 1hdft W2A intercooler kit .. There are many other Kits Listed Here .. This is an A2A IC from Ebay that is far less money than the Allisport ..

The majority of cheap W2A intercoolers have nowhere near the heat exchanger/'radiator' size to shed the heat from a diesel that runs boost basically constantly - the only successful W2A I've seen in cruisers use a small car radiator as the heat exchanger. A petrol engine is very different in that it will generally not make boost whilst on cruise. Same goes with the majority of top mounts and even a lot of cheap front mounts, just not big enough to lose enough heat to make it worthwhile. Buy once, cry once IMHO and in most cases you get what you pay for.

Personally, I had a Cross Country 'Ultimate' on my HDJ80 with a SPAL fan, 600x400x76mm core, top-mounted. Very happy with it, but if PDI was around when I bought the cross country, I would have bought a PDI, a front mount makes basic engine maintenance very easy.

 

[chapel gate]

Does anyone has experience with the allisport intercoolers?
As they are within EU, its a chepaer option for me than the PDI.
Allisport 1HD-FT intercooler

they have a good rep in the UK.