3L turbo upgrade (1 Viewer)

[hiluxjeremy]

Well, I've been running a CT20 on my 3L in a 1990 LN106 for a few years now. Night and day better than no forced induction, but I dont trust the one I have to survive much longer. The CT20 is a basic unit, as far as I can tell, a dated design. Looks rather restrictive to my eye, however, an expert I am not.

So, after a bit of reading on the Garrett website,

I've gotten myself an ebay special T3/T4 knockoff, .50ar, 57 trim compressor side, .63 ar exhaust side, for the sake of science. I wouldn't expect a unit this cheap to last in the long run. But I also don't want to drop 1000 or more on a turbo that may or not work for my application.

I plan to try this unit out for size and see how it works. If I like it, I could see going with the genuine article of comparable specs in the long run. Install will involve making an adapter from T3 flange to factory 2LT manifold, figuring out intake and charge tubing, modifying my current oil feed and return to work, as well as modifying current exhaust system.

Then of course comes the test and tune. A sharp eye on the egt guage and a hillbilly boost gauge will be my guide. This is an internally wastegated unit factory set at 8 psi I'm told, but we shall see.

The goal here is to get a little more performance ( counting on hopefully the increased flow/efficiency of this unit) at the same 11psi I was running before. A top mount intercooler I have lying around will most likely get thrown into the mix in the long run. First things first tho.

Job one was to clock orientation of main body so oil drain would be on low side of unit when installed in this application.

Drain side pictured directly above. Bolt patterns on compressor and exhaust housings allow changes in orientation, happily.

Upadates as things progress, should be a busy weekend. Stay tuned.

 

[GTSSportCoupe]

Nice work! Looking forward to seeing how it works out for you. Please update as you progress.

I'm also upgrading from the CT20. I picked up a mint used Mitsubishi TD04L-13T-6cm from a 2008 WRX turbo. I mapped it out to my little 2LTE, and I think it might work very well. Hope to get it on in the next month or so. Although I've gotta hand it to my little CT20, as it is able to provide 16psi (post intercooler) from 2200-4000+rpm, so its not half bad I suppose.

 

[ForealBoreal]

Make sure you get the Chinese turbo balanced properly here just to make sure.

 

[gerg]

Please post up your results but, if it's a stage 3 turbine, that is an absolutely gigantic turbo for your engine. Sadly I don't think you will be happy with the results. The ct12b is a great turbo for you. I'm sure if you looked hard enough you could find a used one in this world. You can also make something very similar out of mitsu turbo parts, but would take some shopping around.
g

 

[Dougal]

As Gerg said, that's way too big.

A Toyota CT12B is about ideal.

 

[Mcreight911]

See Graeme from gturbo he already has 3 stages of turbo upgrades for this engine.

 

[quietmission]

Any progress...I would like to know how it works out.

 

[Miloslavich]

Any updates on how this ended up? What turbo do you run now?

 

[hiluxjeremy]

That project was abandoned, waaaaaay too big. Much has been learned since then. Have been using a Mitsubishi manufactured ( if recall correctly its been a while, like 5-7..? years...) TD04-HL-13T. Seems to me there is one with a larger exhaust housing and one with a smaller one, possibly the "HL" or "H" in the designation. I'm not certain I ended up with the ideal version. Mine came from a reputable rebuilder stateside. Lots of people on here with more in depth knowledge about turbo specs than me. Research at the time led me to the one I'm still using. Believe I ran across it as an option for a 3B cruiser engine add on also.

I ended up making a custom adapter to work with 2LT manifold, did clock compressor housing and had to modify wastegate actuator to work. I used the stock wastegate setting for quite a while. Even at less pressure than my previous CT20 I still had/have lower EGT's under every condition, I can only assume do to the difference in flow, get that hot stuff out. I made a dump pipe that is 3 inch right off side of turbo and doesn't neck down anywhere, this was also an effective mod with CT20 compared to stock type elbow with much smaller ID.

I've got a top mount intercooler with fans, scoop from a stock Subaru application. Yes its too far back for aero to be effective but fans make world of difference. Wrapped turbo and downpipe with fiberglass header tape to try and keep engine bay a bit cooler and avoid heat soaking IC as badly. Its tight in there but everything works and has been hauling this truck literally from coast to coast in Canada for quite a while including across the Rockies between BC and Alberta routinely. Like once a month at minimum. EGT probe is pre turbo in manifold collector, I'll run 1200F as absolutely max for long climbs in the mountains, peak boost is around 12-13psi but very rarely will I see that, more like 9 or 10 uphill.

Truck is heavy for an LN106, dual tanks, dual batteries, dual winches, dual cases, hyd assist, lots of armor, 4.88's, W56, 35" KM2's at the moment. I don't know what it actually weighs but a lightweight it is not. Have been happy with performance all told, (got used to the slow lane a long time ago) opting for getting home every time rather than trying to make an IDI brick of an engine into something it simply isnt. Ive often thought if truck was closer to stock weight with current level of tune it would be a pretty fun package for what it is. Would it hold a candle to a 1KZTE? I doubt it. A 2KD? Not a chance!!

There have been issues over the years, did cook the original head, eventually rebuilt engine around 400 000km, was eating oil and lots of blowby, never did quit though. Its always been easier/cost effective to fix what I've got than swap a new engine family. I've had truck over a decade, countless adventures. If I get ambitious or have issues with existing turbo I'd like to try a CT12B as mentioned by greater minds than mine in an old post above. So far so good though, not as interested in fixing things that aren't broken as I once was.

Next your gonna want pics.

 

[hiluxjeremy]

See the earlier post by GTSsportcoupe above for a closer to correct Mitsu part number, chances are I was trying to get one along the same lines. The details escape me just now.

 

[philb]

I replaced the stock ct20 on my 2LTE, when it finally died, with a holset he211. Great little turbo. As is mentioned in other threads some additional modifications are needed (intercooler, mods to overcome fuel cut etc.) but with those done I comfortably make around 24psi max boost, typically running 10-15psi with egt’s consistently 1000F (pre turbo) or less in a variety of driving conditions.

 

[Jeru]

I replaced the stock ct20 on my 2LTE, when it finally died, with a holset he211. Great little turbo. As is mentioned in other threads some additional modifications are needed (intercooler, mods to overcome fuel cut etc.) but with those done I comfortably make around 24psi max boost, typically running 10-15psi with egt’s consistently 1000F (pre turbo) or less in a variety of driving conditions.

@philb - how are you getting on with the HE211?

I was all set to swap my CT20 for a TD04, but now I’ve seen a few mentions of of the Holsets, I’m interested to know if they’re better / easier to fit.

 

[philb]

@philb - how are you getting on with the HE211?

I was all set to swap my CT20 for a TD04, but now I’ve seen a few mentions of of the Holsets, I’m interested to know if they’re better / easier to fit.

Hey Jeri I have since sold the truck but the holset was great. Fast spoiling which makes it ideal for the gearing of the 2LTE. It’s a small turbo so fits easily.

 

[Jeru]

@philb

Sorry for all the Q’s…….not having any luck tracking down a HE211 in UK.

Holset headquarters is located about 60 miles from where I’m sat, but no-one seems to know anything about this turbo from the reference ‘HE211’

Don’t suppose you have anything like a part number or similar ?

 

[philb]

@philb

Sorry for all the Q’s…….not having any luck tracking down a HE211 in UK.

Holset headquarters is located about 60 miles from where I’m sat, but no-one seems to know anything about this turbo from the reference ‘HE211’

Don’t suppose you have anything like a part number or similar ?

No worries. Here is the one I fought Holset HE211W

NEW GENUINE HOLSET HE211W 5350915 3788177 CUMMINS ISF2.8 115KW Turbocharger 4CM | eBay

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