Vossie
#thecrazycruiserman
looks nice. whats the extra pipe there on the air intake hose by the air filter housing for?
Ideas for improving the 2LTE (24 Viewers)
- Thread starter GTSSportCoupe
- Start date
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Thanks I’m pretty stoked with it!
Is this what your refering to? (Picture below)
Cause I have no idea I got it like that haha should I delete it?
Cheers
Joe
Is this what your refering to? (Picture below)
Cause I have no idea I got it like that haha should I delete it?
Cheers
Joe
I did not read the whole topic, but I would like to clarify that you monitor the turbo diesel in the following way:
(just skipping any questions all the precautions, only about monitoring for now)
- EGT measurement by pyrometer gauge somewhere on exhaust manifold or where it mates to the turbo
- Same kind of pyrometer somewhere on the engine head?
Can I use these kind of devices to measure that? They have the right range, and can be connected under some existing bolt.
CYLINDER HEAD TEMPERATURE GAUGE, UNIVERSAL. PYROMETER, CHT, 8M SENSOR | eBay
- Monitor oil temp?
- And a more precise coolant temp measurement I understand. Although I must say, the original one is responding very fast (don't ask me how I know haha something with a bad radiator cap)
Now on the precautions. I have a snorkel, and the air intake/filter is separated from the engine room, so that is nice.
I guess that an intercooler would also help. Or am I overestimating it?
Next to that, would an oil cooler help? And where in line would you place it? On oil return line coming from the turbo?
(just skipping any questions all the precautions, only about monitoring for now)
- EGT measurement by pyrometer gauge somewhere on exhaust manifold or where it mates to the turbo
- Same kind of pyrometer somewhere on the engine head?
Can I use these kind of devices to measure that? They have the right range, and can be connected under some existing bolt.
CYLINDER HEAD TEMPERATURE GAUGE, UNIVERSAL. PYROMETER, CHT, 8M SENSOR | eBay
- Monitor oil temp?
- And a more precise coolant temp measurement I understand. Although I must say, the original one is responding very fast (don't ask me how I know haha something with a bad radiator cap)
Now on the precautions. I have a snorkel, and the air intake/filter is separated from the engine room, so that is nice.
I guess that an intercooler would also help. Or am I overestimating it?
Next to that, would an oil cooler help? And where in line would you place it? On oil return line coming from the turbo?
Vossie
#thecrazycruiserman
although im still new to the 2L-TE, i do have a lot of experience with other diesels, and i would not personally be using a thermocouple like that. all thats going to do is give you the temp of what ever bolt you have it under. you want to know what the coolant temp is. so you want a thermocouple that goes into the coolant galleries, or the thermostat housing, or the rad housing.
same thing with the EGT thermocouple, you want it in the exhaust, either pre or post turbo, not just bolted to the outside. its not going to give you a true reading of what you want
also, a oil cooler is going to cool your oil, not your coolant or head.
an intercooler is always a great thing on any diesel engine, especially a turbo.
ja, that. only reason i ask is bc it looks like the end is open to the air? there fore rendering the air filter useless?
That tube is probably sealed on the end, and used for tuning out a resonant frequency/wave or something along those lines.
Yeah the coolant part is relatively easy to do.
However with the EGT sensor, I'm not sure what it means if I want to measure pre-turbo. It means I should have the exhaust manifold modified to have a hole (with threading) for the sensor?
By the way, I do not have the 2L-TE, I just have the 2L and am researching to put a turbo on it. I know that will increase risk, but I plan not to turn op the fuel pump. Only to fit a turbo (apparently this is a common turbo kit solution in Australia, they don't touch the fuel pump)
And then monitor the EGT so that I don't kill the engine.
An oil temp gauge and an oil cooler are only sensible if oil temperature is an issue at all. I presumed so, because it comes back hot from the turbo. And the head also has oil lines. But it isn't the main issue here I guess.
I have a pre-turbo EGT gauge on my Chevy 6.5TD. I installed the sensor myself, using a place on the exhaust manifold I could reach with my drill.
First, I chose a drill bit sized for the threaded adapter for the EGT probe. Then, with a cold motor, I drilled what I estimated to be almost through the cast iron of the exhaust manifold. Next, using a bit of grease on the tip of the drill to catch metal bits on the tip, I started the motor. This pressurized the exhaust manifold with exhaust gas, and blew out any extra metal bits. I had the tap ready to use as soon as the hole was drilled, and the manifold wasn't very warm yet. I then tapped the hole for threads for the probe, using the exhaust pressure from the running motor and grease on the tap to catch any metal particles before they could possibly go into the turbo.
Using this method I was able to successfully drill and tap the exhaust manifold without removing it, or getting any metal particles in the turbo. I hope this helps you.
Don
First, I chose a drill bit sized for the threaded adapter for the EGT probe. Then, with a cold motor, I drilled what I estimated to be almost through the cast iron of the exhaust manifold. Next, using a bit of grease on the tip of the drill to catch metal bits on the tip, I started the motor. This pressurized the exhaust manifold with exhaust gas, and blew out any extra metal bits. I had the tap ready to use as soon as the hole was drilled, and the manifold wasn't very warm yet. I then tapped the hole for threads for the probe, using the exhaust pressure from the running motor and grease on the tap to catch any metal particles before they could possibly go into the turbo.
Using this method I was able to successfully drill and tap the exhaust manifold without removing it, or getting any metal particles in the turbo. I hope this helps you.
Don
I did the exact same thing when installing the EGT probe on my 1HD-T, a bit nerve wracking to be sure, but it worked perfectly.
GTSSportCoupe
2LTE abuser
- Thread starter
- #209
Welcome! If you don't have a lot of money, just focus on maintenance and not fancy upgrades or modifications.
The very first things I'd do to ensure reliability and good cooling is:
- Service the viscous hub fan - drain the old silicone oil and add new oil. set the turn on temperature a bit lower. If you're up for it, install a larger fan. This makes a huge improvement.
- Install a Tridon 88C high flow thermostat. These flow much better than the factory size ones. A great modification.
- Do a general cooling system inspection and coolant flush. Make sure there are no leaks. Install a new rad cap. Make sure the radiator is clean inside and out.
If you want to do some cheap tuning:
- Scrap the EGR system and throttle plates.
- Install a manual boost controller, and bump the boost up to around 12psi.
Other than that, make sure your brakes are all good, front axle in good shape, do a transmission flush. Etc.
GTSSportCoupe
2LTE abuser
- Thread starter
- #210
Yes you're right. I removed that tube on mine. I get a funny resonance when I'm going over 130km/h.
Thanks for the advice!
I was wondering what you would say your number one best upgrade/mod would if you could only do one thing?
I think I will remove that tube too and am looking for a manual boost controller for tuning.
What is the EGR system and how to I get rid of it?
Thanks for you help
Joe
I was wondering what you would say your number one best upgrade/mod would if you could only do one thing?
I think I will remove that tube too and am looking for a manual boost controller for tuning.
What is the EGR system and how to I get rid of it?
Thanks for you help
Joe
EGR stands for Exhaust Gas Recirculation; the system pumps a certain amount of the exhaust back into the intake to re-burn it to reduce emissions. It is very easy to remove/disable, and I would recommend it highly, as there is almost no cost but time. I posted some photos when I did mine, about halfway down the first page here: 1990 LJ78 in Montana
Removing the EGR system helps lower EGT's and keeps the intake tract cleaner too.
Awesome thanks for the lesson haha I think I will do that!
Hello,
K&N air filters are known as engine killers.
I would stay with the factory air filter.
Make sure the air intake duct has no leaks.
Allow the turbo to cool down after sustained high speed and/or high rpm driving. It takes a few minutes and gives the engine a chance to release the additional heat it generated without catastrophic failure. I might be stating the obvious, but better safe than sorry.
Juan
K&N air filters are known as engine killers.
I would stay with the factory air filter.
Make sure the air intake duct has no leaks.
Allow the turbo to cool down after sustained high speed and/or high rpm driving. It takes a few minutes and gives the engine a chance to release the additional heat it generated without catastrophic failure. I might be stating the obvious, but better safe than sorry.
Juan
Wow that is interesting. I have heard from and spoken to a number of people who are always telling me to put a K&N into my truck haha
Ya, skip K&N unless you like dirt getting into your engine. They flow better when clean, but let stuff through. They filter better when dirty, but then they don't flow as well. I'm not sure what's available for your truck, but I've got 2X OEM Toyota air filters that are washable, so I've always got a clean one on the shelf.
Thanks for the feedback on the EGT sensor. My manifold will come separate anyway, so easy to tap a hole in and blow it clean with air pressure or something.
So this means that such a unit would be good to insert into the manifold? (by tapping a hole)
Diesel Exhaust Temperature Gauge Kit 1/4" NPT, EGT Pyrometer, Free Weld Bung. 2m | eBay
I don't have any feeling for the quality of these kind of things, but this one would do the job it seems. I'm listing what is needed so I have an idea of the cost involved in the modifications.
So this means that such a unit would be good to insert into the manifold? (by tapping a hole)
Diesel Exhaust Temperature Gauge Kit 1/4" NPT, EGT Pyrometer, Free Weld Bung. 2m | eBay
I don't have any feeling for the quality of these kind of things, but this one would do the job it seems. I'm listing what is needed so I have an idea of the cost involved in the modifications.
I have no idea the quality of the one you posted, but an EGT probe isn't something I'd shop for based on price alone. If the tip breaks off and goes through your turbo, you'll wish you'd spent the extra $30 or so on a quality one, lol.
Then please recommend me a good one
Because I have no idea how to distinguish good and bad EGT probes
All I know is that I would like one to have an alarm on it, so I don't have to look at it all the time.
