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Old 05-28-2019, 04:23 AM   #51 (permalink)
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Long time no update. Ive basically just been driving the shit out of this thing. Done 20,000km in the last 9 months or so. Plenty of trips, lots of wheeling, and occasionally just running around town as it's so much fun to drive.








Ive been chipping away at a few jobs trying to get the thing as good as i can:
Upgraded the front brakes with later model calipers and vented/slotted rotors, with QFM A1RM pads which are 100X better than the solid brakes and old pads. No more fade. Will be doing a disc upgrade on the rear next. I fitted a manual proportioning valve but the rears still aren't right.
New springs and shocks in the front. The old leafs were very soft and i was getting some mad axle wrap under power. Now running some Pedders HD 40mm lift springs and Tough Dog adjustable shocks. I run the shocks quite firm on the road and turn them down as soon as i lock the hubs/air down. This has made a huge difference to the on road handling, it is much more predictable now and feels less like it's going to kill me. Saving up my pennies to do the same treatment to the rear.
"Flexing"

Got sick of the WRX seats so swapped them out for some nice leather ones out of my smashed Alfa 159, sooo much better on long drives now. The WRX ones were just too small for me. Did a double layer on chinamat insulation on the floor while i was at it which has removed a ton of heat and noise, it's a lot more civilised inside now.
Fitted a tonneau cover to the tub, ripped the old shitty compressor out and fitted a Thumper twin cylinder unit behind the back seat which is much quicker. Also ran some heavier cabling back there to run the fridge, and wired up some LED strip lights under the awning and inside the rooftop tent.
Changed the fuel pump as the original one died, and added a Holley Hydramat which has completely solved my surge issues, even with only 2 or 3lt in the tank.
Upgraded to the newer water pump controller, although i got through plenty stinking hot summer days with no overheating.
i made up a water injection system which will hopefully allow me to run some more timing in the motor, i had a lot of trouble with it pinging over summer so hoping this will help. It is all installed and tested, i just need to wire it all up now. Using an ecu output to turn it on over 4000rpm, and taking feedback from a water pressure sensor. Only once the ecu sees enough water pressure it will switch to a more aggressive spark map. If there is any issues with the system it will revert back to the base timing map as a failsafe. Running 160psi water pressure and an atomising jet for a very very fine mist @ 150cc/min.



Only real issue i had was while we were camping at the Buckland Valley over Christmas, did a bit of carnage trying to get up one of the tracks. The drivers side trunion/kingping bearing exploded which cambered the wheel in, and caused the drag link to foul on the spring U-bolt. This meant i couldn't turn left of center at all. Right turns were fine! A very slow and frustrating drive back to the campsite!!
Spent the next 2 days getting lifts into town for parts, and rebuilding half the damn front end at camp....








The truck has also been on towing duty recently as i bought my first boat a few days after getting home from that trip. I did a bit of work to it and have had it out a few times already, it's great fun!






I've been getting a bit of noise from the transfer case in 4wd recently, i think the chain has stretched.

Next big jobs will be the rear disc brakes and crossover steering, both of which I'm hoping will help it feel safer on the road. Sick of spongy brakes and crazy bump steer.
Will also be regearing and adding traction aids once funds allow. Thinking of truetrac in the rear and e-locker in the front. Would love to be twin locked but it needs an LSD for on road use otherwise it fries the inside tyre every corner. Thinking of 5.29 gears, it feels very tall in the gearing at the moment with 4.56's. It does 130km/h (80mph) in 2nd gear, which is a bit excessive. Dreaming of dual cases but i think that's a while off....
Oh, and i'd like A/C before summer rolls back around too.
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Old 08-08-2019, 04:12 AM   #52 (permalink)
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So i was banging my head against the wall with the brake upgrade. I tried a heap of different combinations that all didnt work for some reason or had a major compromise from what i wanted to achieve.
I kept coming back to the Toyota Prado brakes as ticking a lot of boxes, although they were a long way from bolting on. After plenty of prototypes i finally got it all to work!!

I'm using 90/120 series Prado calipers/pads and rotors. Custom backing plate to hold the internal drum handbrake, custom caliper brackets and hubcentric rings.
This gives a huge 312mm VENTED rotor (which i even managed to squeeze under my 15's), a caliper with a big 48mm piston for lots of clamping force, and it also runs the largest of the Toyota handbrake drums at 210mm. The calipers, pads and handbrake stuff is all the same as 80 series etc. Should also be dead easy to get replacement parts down the track. Pretty sure FJ cruiser uses the same calipers/rotors etc too.

The stopping power is great, and i love the pedal feel now i have upgraded the master and booster to suit the big calipers. So glad to be rid of the drums!!
Handbrake also works excellently. I massaged the Toyota setup very slightly to take any slop out, so it pulls up nice and tight.

I can buy every single part brand new so i will end up offering a full bolt on kit, and also a cheaper "DIY" kit with just the conversion parts where you get your own calipers, handbrake stuff etc from a wreckers, even pads and rotors if you're extra cheap!


And now for some pics because everyone like pics. Please excuse the crappy finish on some of the parts. I am trying a new zinc plating place and to be honest I'm not very happy with their work!!
Backing plate and caliper bracket


Starting to add bits


All dressed up!


Axle installed


Back in the diff


Disc brakes!!!!


Caliper is very close to the inside of the wheel, but it clears by just enough!!





This upgrade should fit everything from 1978 to 2005. After that the handbrake cabling changed slightly, so i will work on a new backing plate for the 2005-2015 next.
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Old 08-10-2019, 03:30 PM   #53 (permalink)
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Nice work! I hope you get a patent before trail queer steals your idea.
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Old 08-10-2019, 05:18 PM   #54 (permalink)
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I can't help but to read your posts in a steve irwin voice

Truck is awesome though
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Old 08-10-2019, 05:24 PM   #55 (permalink)
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really cool build, sad i missed it till now! that disk setup is rad
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Old 09-15-2019, 12:13 AM   #56 (permalink)
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Thanks guys!

I recently picked up an RX7 throttle body for this thing. I first saw one years ago and always wanted to give it a try. It has 3 x 45mm butterflies. I fiddled with the linkages a bit and now for the first ~25% of the pedal only the primary opens, after that the secondaries open quickly. The idea of this is to give the low end driveability of a 45mm TB with the top end potential of a 78mm unit.



This engine is so responsive that it's very hard to drive smoothly at low speeds... the throttle pedal is almost like an on/off switch at low revs with the stock 60mm TB. I was also never hitting 100kpa in the manifold which says it's too small in the top end.
The new TB is a night and day difference. So much easier to control down low, and it absolutely hauls ass once the secondaries open. There is also some crazy induction noise in the cabin too which is kind of addictive.
Overall im very happy with the outcome! It's much much less of a pig to drive now.
Down low it gets great torque from the small TB and super long intake manifold. Up top the manifold switches to short runners, water injection kicks in, secondaries open and it just screams to redline. Very wide and usable powerband, very Jeckel and Hyde depending how you drive it.

Was quite a lot of effort to make fit, i had to adapt the Toyota TPS onto it (sealed from dust/water), redo all my iac/pcv plumbing and redo the water injection stuff. New IAT sensor. Then make adaptors for both sides of the TB and move the airbox into the inner guard.
I havent done much 3d milling of lofted shapes like this so it was a bit of a learning curve but they came out ok with some hand finishing.

TB to intake manifold




TB to air filter





Fitted






I discovered the radiator was leaking so i replaced it with a HJ75 unit with is a bit taller and gives about 10% more core area but more importantly it had the inlet/outlets in the right spot for my setup so i didn't have to cut & weld it. I was also able to add a fan shroud this time to further help with cooling (not that it needs it). I got a brake press recently so i took the opportunity to fold a bolt/tool tray into the top of it which has been very handy.

Lastly i got some wireless steering wheel controls for the Android head unit. CNC'd me some holes in the wheel trim and pressed the bits in. First time ever machining wood lol




Couple of action shots from the last time out wheeling. We had no business going down a track like this and unfortunately my mate rolled and totaled his truck not long after these photos were taken



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Old 09-15-2019, 07:42 PM   #57 (permalink)
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AWESOME!!! This is totally what pirate used to be about.
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Old 09-15-2019, 09:08 PM   #58 (permalink)
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And awaiting this kit to come to Market!
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Last edited by marvin82; 09-15-2019 at 09:08 PM.
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Old 10-03-2019, 03:52 PM   #59 (permalink)
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Quote:
Originally Posted by Seabass View Post
AWESOME!!! This is totally what pirate used to be about.
Thanks! I've learnt a lot from this website so it's only fair to share what I've done with the knowledge.
I'm still not sure it's pirate worthy though... RTT, 31's and not a D60 or AR15 in sight. Our modification laws over here are very restrictive unfortunately.


Quote:
Originally Posted by marvin82 View Post
And awaiting this kit to come to Market!
It's available on my website now, but TBH I hadn't put much thought into selling it to the US market. Did you guys get the Landcruiser Prado over there? Ie VZJ95 etc?
Pretty sure FJ cruiser parts will interchange if not but I'll have to double check.
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Old 10-13-2019, 07:35 PM   #60 (permalink)
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this is a sweet truck! nice work
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