Most of the guys that had issues with oil returns had the turbo mounted low with a very shallow angle on the return line whereas the return from my turbo is quite steep. Either way I'll run it and see how it goes, if I get oil backing up and excessive consumption I will look into moving the oil return. When I rebuild the motor I will be drilling and tapping the block to run the stock oil feed and return lines anyway. I drilled and tapped the exhaust manifold for the egt probe directly above the inlet for the turbo, I figured this would give the most accurate reading.
View attachment Click to expand Hi there guys. I just in the waiting time for the heater pipe 1 they call it, and water pump pulley from soudi.. Happy holidays to all..! Update: after several thousand km the low mounted oil return line is fine. Absolutely no issues with the turbo or the motor apart from my intake manifold gaskets weeping, which is no huge surprise for 22 year old gaskets.
Currently I am working on a supra hybrid turbo which I hope to have fitted in the next few weeks. Joined Apr 8, Messages 2 Location Townsville. Been lazy about posting the rest of this. Had it up and running for the last week. Here is a pic of the oil supply from the block, I used a tee from the oil pressure sensor.
Hey mate, what brass fitting did you use for your oil feed? Tjagapiou said:. Last edited: Aug 25, I've just started an update to the first few posts of this thread, added part numbers for all the genuine items I bought. Also looking at a better flowing airbox and intake and installing a 3" exhaust system I have been having some overheating and high egt issues while under load in the last couple of thousand KM of driving, I think predominantly related to a cheap aftermarket fan hub and weak radiator cap.
I will be addressing this at the same time as installing the new turbo. Also looking at a better flowing airbox. The mamba wastegate actuator I bought has a 14psi spring, I'm going to try that first. After I get an intercooler I'll step up to the 19 or 21psi Spring.
I'm sure it would still see benefits from improved aircleaner flow, even at lower boost levels. The improved airbox will come along after everything else is done. Just got home after 2 months away working. Time to make some progress. The filter bracket is a universal type so it will hold a variety of different filters, just to make it easy to find replacements.
In answer to your questions, this is my thoughts: A boost compensator alters the fuel to air ratio in relationship with boost. More boost, more fuel. Dump pipe and 3" exhaust for turbo engines is the way to go F the 1hz fuel pump will be fine with a turbo, the vast majority don't change it. Adding the boost compensator to the injector pump would normally suffice.
G by the time you price up all of the above a factory turbo engine is starting to look very tempting, and you would then have the bonus of factory reliability.
Turbo 1hz's can and do crack the heads at the pre combustion chambers. No such issues with factory turbos, plus you should get better fuel economy with a factory turbo because of the direct injection. Forgot to mention, I dont think a turbo 1hz will have much drama pulling a 20" caravan. My old standard pulled a 21" no problems, well it wasnt quickly but it still pulled it.
Start saving now to buy a tidy factory turbo diesel, transplanet your current goodies onto the new truck and sell the old. Hard to justify a transplanet on an old truck these days, unless your going for mass power V8 and turbo'ing a 1HZ could end in tears. WA Member.
I have a safari intercooled turbo 1HZ. I'm not convinced in adds a lot of power to the original NA. I may put extractors and a decent exhaust on it in the near future though. I'm sticking with it because I bought it already turbo'd. Not sure on weight sorry But he did 1 trip from perth to exmouth and is now doing the 6. I would suggest as South mentions. Buy a later model 1HDFT factory turbo and sell of your current rig Here to often.
NSW Member. If you only want grunt and don't mind the electronics get a with an FTE. QLD Member. I have driven about 5 different turbo'd 1hz's now and I have been underwhelmed by the lot. They seem to have a little more poke between rpm and rpm in comparison so my 1hz with extractors and 2.
Also you can hold 5th up hill for a bit longer. Other than that its not worth the money IMO. Look for a 1HDT to transplant. Thanks guys. I haven't re sealed the split manifold, too late now though. I guess I'll see if it leaks. The turbo is off an 80 with ,km on it, was the cleanest looking 80 I've ever seen. I checked the end float and axial play in the shaft and it appears to be good. I drilled and tapped the exhaust manifold for the egt probe directly above the inlet for the turbo, I figured this would give the most accurate reading.
Last edited: Sep 23, Once you have removed the exhaust manifold and intake pipe work you have access to the water bypass pipe, remove the hoses and P clip, then use a pry bar to lift the pipe out of the top of the thermostat housing.
The 1hd-t pipe presses in exactly the same as the 1hz pipe. Nice photos of your EGT probe placement, never seems to be enough of these when you need them! IanB said:. Click to expand I made some progress this afternoon. I dropped the oil out last weekend so when I dropped the sump this arvo it was bone dry. I thoroughly cleaned it out, marked where I wanted the oil return to go and took to it with a hole saw.
Joined Dec 17, Messages 5, Location Across the pond, and upside down. Thanks thats handy to know. I tried fitting the crossover pipe this morning. Was not going to go in unless I pulled other bits off so I have left it as is for the moment. I got the oil feed line plumbed up, hose clamps on the intake, refilled the oil and coolant and now I'm too nervous to try and start it. It's raining and and I'm trying to be patient, so it can wait until tomorrow.
It also has no exhaust yet so might aggravate the neighbours a little. Been lazy about posting the rest of this. Had it up and running for the last week. Last edited: Oct 24, Joined Jan 8, Messages Location Johannesburg. Is your drain going into the oil in the sump or above. Looks a little low to me but may just be the picture.
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