Guide: 1HZ - GTurbo + PDI intercooler + 3" exhaust (1 Viewer)
- Thread starter ATL Cruiser
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From the PDI link posted earlier:
"Our first released PDI Landcruiser HDJ79 Front Mount intercooler kit had a 600x240x65mm core and now we have managed to fit a 76mm thick core behind the factory grill (with a bit of slimming to the plastic), which for many who have considered the custom install to be impossible. The pipework is also 2 1/2” stainless steel for improved flow and durability. Note stock levels of the 76mm core have been depleted and we have 65mm cores"
Roughly 24"x10"x3" (if its the 76mm)
ATL Cruiser
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- #23
I wish I did. I do not have that data for two reasons:
A. I didn't take mileage notes beforehand.
B. I am now stomping on the accel every chance I can get, which has obliterated my fuel economy.
Sorry. Under similar driving conditions, it would certainly be better mileage due to the increased air density.
I am thinking of having one custom-made for my HZJ78 maybe a little smaller... Sorry I did not see the dimension in the first post!
No apologies necessary, I happen to be digging around on their site at the same time.
nice write up thanks for taking the time to share
any reports on how everything has been working / performing
any reports on how everything has been working / performing
ATL Cruiser
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- #27
I appreciate your kind words. I hope it helps you out. The PDI install was a learning curve that could have saved me a week or so with a write up like this.
Regarding performance, I don't have any dyno numbers; however, the vehicle performs WAY better. It is truly a pleasure to drive now. From what I've heard across various forums, it's a 30-50% increase in power. Based on my experience, I would easily agree with that.
Solid write up. It will definitely help others!
I also used the PDI HZ75 kit. had to get a newer plastic grill and matching blinker/market lights to trim the plastic grill to fit. I also haven't installed the ac stuff I removed when I installed the 12HT, so haven't tackled that yet.
Very nice write up, wish I had this when I was doing the install on my 77. I experienced all the same issues, I was PDI's guinea pig for a 77 install. I provided them a bunch of feedback and they claimed they would modify the kit to suit a 77, guess that never materialized.
Now if you really want to get the full potential out of the PDI I/C, put an FT engine around it.
Look into a less restrictive airbox, it is your limiting component now. Rig up a vacuum gauge on the turbo inlet, mine was pulling vacuum at full boost, upgrading the airbox made a huge difference.
Now if you really want to get the full potential out of the PDI I/C, put an FT engine around it.
Look into a less restrictive airbox, it is your limiting component now. Rig up a vacuum gauge on the turbo inlet, mine was pulling vacuum at full boost, upgrading the airbox made a huge difference.
ATL Cruiser
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- #31
The guys at PDI were great to work with. Thank you for any feedback you gave them. My install went perfectly in terms of the PDI design. It was all the other stuff that broke in the process, through no fault of PDI.
That is really interesting. I never thought about the airbox being the choke point. Which box did you end up with? I'm going to order one.
When I was doing it, there were not many options, torfab had one, and this place: Stainless Air Boxes - https://moonlight4wd.com.au/collections/stainless-air-boxes
They were very proud of them and wanted a hefty price, either way some kind of modifications would have been necessary to make it work. So I ended up doing a custom jobber using an airbox from a chevy truck.
They were very proud of them and wanted a hefty price, either way some kind of modifications would have been necessary to make it work. So I ended up doing a custom jobber using an airbox from a chevy truck.
Torfab (@NookShneer) has a high flow box on their site
torfab.com
I don't know if it fits or if they have brackets for the 70 series, but might be worth looking into.
Diesel Air Box » Torfab » The NW destination for Everything Land Cruisers parts and service, including complete one-off custom built Cruisers, maintenance, suspension, and expedition builds
The NW destination for Everything Land Cruisers parts and service, including complete one-off custom built Cruisers, maintenance, suspension, and expedition builds
torfab.com
I don't know if it fits or if they have brackets for the 70 series, but might be worth looking into.
ATL Cruiser
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- #34
@Loober @svsisu those look great. I also found one by PDI, where I bought the intercooler.
www.performancedieselintercoolers.com.au
Reaching out to all those sources today (tomorrow Australian time).
PDI Landcruiser HDJ79 Airbox HDJ79/HZJ75 Series
The PDI Landcruiser HDJ79 Airbox is designed for max power potential. In stock and ready to ship Cast alloy lid and box – moulded for optimised flow and resistance to distortion. Precision machined on sealing surface. for a dust proof seal. 4” inlet and 4”outlet - to maximise air
www.performancedieselintercoolers.com.au
Reaching out to all those sources today (tomorrow Australian time).
I had seen the PDI version also- looks good. I'll be very interested in what you find out. I have a LHD 24v truck so there is a battery in that general area. I guess the deciding factor for me would be if any of the above air boxes fit in the same real-estate as the stock air box and do not interfere with the battery.@Loober @svsisu those look great. I also found one by PDI, where I bought the intercooler.
PDI Landcruiser HDJ79 Airbox HDJ79/HZJ75 Series
The PDI Landcruiser HDJ79 Airbox is designed for max power potential. In stock and ready to ship Cast alloy lid and box – moulded for optimised flow and resistance to distortion. Precision machined on sealing surface. for a dust proof seal. 4” inlet and 4”outlet - to maximise air
Reaching out to all those sources today (tomorrow Australian time).
Torfab (@NookShneer) has a high flow box on their site
Diesel Air Box » Torfab » The NW destination for Everything Land Cruisers parts and service, including complete one-off custom built Cruisers, maintenance, suspension, and expedition builds
The NW destination for Everything Land Cruisers parts and service, including complete one-off custom built Cruisers, maintenance, suspension, and expedition builds
I don't know if it fits or if they have brackets for the 70 series, but might be worth looking into.
We don't have a set of brackets due to the variations in 70 series and different market specs. All the installs we have done at the shop have been custom one off brackets. But the airbox has been installed into other 70 series in the past. I'll see if I can find any photos of prior installs.
Happy to help with providing measurements of the Diesel airbox if that would help. We can also provide a set of 80 or 60 series brackets with the order and they may be able to be bent or modified to work.
-Dave
If you have or plan to install a snorkel, it actually makes it easier to make one of these work. The stock inlet routing(as you know) uses a bunch of fittings to route behind the fender to the front, which is where a lot of the restriction is happening. With a snorkel its a direct shot into the air box, with a lot less elbows. I have the run of the mill plastic safari, thinking about changing it out to the stainless steel pipe that the aussies run.
@Loober @svsisu those look great. I also found one by PDI, where I bought the intercooler.
PDI Landcruiser HDJ79 Airbox HDJ79/HZJ75 Series
The PDI Landcruiser HDJ79 Airbox is designed for max power potential. In stock and ready to ship Cast alloy lid and box – moulded for optimised flow and resistance to distortion. Precision machined on sealing surface. for a dust proof seal. 4” inlet and 4”outlet - to maximise air
Reaching out to all those sources today (tomorrow Australian time).
It's Australia Day here today. Don't expect a reply until Monday (upside down time) at best
thanks for sharing the details!!!
Grrrrrr I totally missed ordering the VE springs when I ordered from Trundles i plan to be running anywhere between 18-25psi of boost I'm wondering if i really need the 2.6mm spring or if I'm just fine with the factory spring?
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According to Gturbo, you don’t need it. They have a tuning guide all for the stock compensator for their turbos
