Outer Limits 4x4 Board

What shoudl i look out for when turboing my 2.4 with the gear from a bundera turbo motor? i need more pulling power and this is my first option but i dont want the motor to die in the next 40,000k's. Anythign i shoudl do/ need to run in adition to all the normal gear to help keep it runnign longer? sorry fi these questiosn have been asked before

If you put the turbo from a 2LT engine onto the non turbo 2L engine you are going to shorten the life of the engine somewhat. 40k is not a bad estimate. The 2L engine has different compression ratios to the 2LT.
You will be better of fitting the whole 2LT engine into your hilux.

gotoy wrote:If you put the turbo from a 2LT engine onto the non turbo 2L engine you are going to shorten the life of the engine somewhat. 40k is not a bad estimate. The 2L engine has different compression ratios to the 2LT.
You will be better of fitting the whole 2LT engine into your hilux.

Not really, if the engine has been looked after before fitting the turbo, and the turbo is set up correctly and not over boosted or over fueled there shouldn't be a drama at all.

Most engineers will tell you a turbo can actually lengthen the life and effeciency of a diesel engine, or any engine for that matter.

Gribble wrote:

gotoy wrote:If you put the turbo from a 2LT engine onto the non turbo 2L engine you are going to shorten the life of the engine somewhat. 40k is not a bad estimate. The 2L engine has different compression ratios to the 2LT.
You will be better of fitting the whole 2LT engine into your hilux.

Not really, if the engine has been looked after before fitting the turbo, and the turbo is set up correctly and not over boosted or over fueled there shouldn't be a drama at all.

Most engineers will tell you a turbo can actually lengthen the life and effeciency of a diesel engine, or any engine for that matter.

The 2L engine is not designed for the power of a turbo....thats why they use the 2LT engine. The insides, especially compression ratios, are quite different.

my mate has a 2l with a turbo denco turbo on it and it has done 500 000 200 000 on the turbo still going not very well now days tho

I'd think about other options. My 2LT needs more pulling power.
It might not get you the gains you're after...

gotoy wrote:

Gribble wrote:

gotoy wrote:If you put the turbo from a 2LT engine onto the non turbo 2L engine you are going to shorten the life of the engine somewhat. 40k is not a bad estimate. The 2L engine has different compression ratios to the 2LT.
You will be better of fitting the whole 2LT engine into your hilux.

Not really, if the engine has been looked after before fitting the turbo, and the turbo is set up correctly and not over boosted or over fueled there shouldn't be a drama at all.

Most engineers will tell you a turbo can actually lengthen the life and effeciency of a diesel engine, or any engine for that matter.

The 2L engine is not designed for the power of a turbo....thats why they use the 2LT engine. The insides, especially compression ratios, are quite different.

There is truth to both arguments, but I'm going with forced induction on this one (only just). The bottom end of the 2L is known to be weak and prone to big end bearing failure, but if the boost is kept conservative (sub 10psi), and the oil is changed religiously every 5k, and the injectors are in good condition, and the injection timing is spot on, then there is no reason why a 2L with an aftermarket turbo shouldn't last as long or longer than a naturally aspirated example. The above is more or less true of any indirect injected diesel engine fittied with aftermarket forced induction, but due to the weakness of the bottom end (especially the big end bearings) of the 2L, they all become more critical. The good news, and it really is good news, is that with an aftermarket turbo you can make more power with proportionally less fuel, thereby keeping the combustion chamber temperatures down - aiming for a maximum EGT of around 550C, post turbo, ensures that the head, precombstion chambers, valves, piston crowns and rings have an extended life - a NA engine typically has higher EGT's than tha same engine with forced induction. The compression ratio of the 2L is quite high for forced induction (22:1?) but EGT is the key - keep it down and the engine will love you for it - it means effectively you will make less power for the same boost compared to a lower compression or direct injection motor which is otherwise similar, but in $ per kW it has to be the cheapest and most reliable power gain you can buy.

now back to the original question, if you have the aneroid fuel pump from the Bundera, USE IT! if you can swap your motor for a complete 2L-T, DO IT - the 2L-T has bigger big ends (same as 3L), thicker piston crowns, different valves, different cam(?), and different precombustion chambers to better suit forced induction. If you can't get a 2L-T cheap, check the compression of your 2L first - it must be near new spec and within tolerance between cylinders - if not, the rings are on the way out and turboing it will accellerate its demise. If you are using the toyota CT20 turbo, be aware that it is slightly undersized for the application so makes good boost right off idle but will choke the motor at high RPM, and is only good for a maximum boost of about 10psi at about 50% efficiency at about 3000rpm - so if you're using the CT20 turbo, stick to 8 - 9 psi peak boost, aim for a post turbo EGT of 550C at full power uphill at 3500rpm, put fresh big end bearings in it (you'll need to pull the sump to put the turbo oil drain in anyway, and that's the hardest/muckiest part of changing the big ends), use a good, Jap spec (castrol J-max, caltex delo CXJ, penrite HPR is ok for summer but a bit thick for winter)) and change the oil every 5000km, Don't get greedy and be tempted to turn the boost and fuel up. Worth considering is re-routing the crancase breather into a catch can instead of into the inlet, especially if the motor has considerable blow-by, as the oil spray in the inlet can cause an unduly rich micture which can artificially high EGT.

hope that helps.

cheers

Brian

I HAVE A 2L-T MOTOR FORSALE IN THE FORSALE BIT. $650-00
MOTOR - TURBO SETUP .

If you are to use the turbo for 'short term' use, then I too would go ahead. However, as your looking for something longer than 40000km, I would say its better to go for the whole 2LT engine.
If you have really set your heart on it, then go ahead and do it. Actually its pretty much the cheapest ungrade. Just be prepared that one day your current 2L engine will be a little old and tired....maybe 40000km, maybe 100000km!! By then, you'll already be thinking about upgrading anyway.

Hi all!

I own a `92 Hiluc dc LN105 with the 2,4 diesel engine.
It has 280tkms on it, and i did the turbo-conversion a few weeks ago.

As i know, the 2L engines from 1991-1996 have completly the same setup as the 2L-TII engines, only the pistons are different.
The 2L has also the piston-bottom-cooling, same crankshaft, same bearings, and as i know the head from the 3L.
The older 2L (-1889) are weaker, that´s a fact.

I´ve got all the parts i need from a surf (LN130).
I swaped the injector pump, the exhaust, renewed the T-Belt, the valve cover, the oil-cooler, all other drive belts.
I had to clean up the engine (water and oil lines, oil filter and the sump), and i replaced the radiator.
I also swaped the instrument cluster, so i have an tacho and an oil-pressure indicator now.

After i drove about 500km carefully, i´ll change the oil for the first time shortly.
The power increase is noticeable, however i have not the felling that the engine suffers because of the turbo. It will run another 280thousand km´s.
Up to now i had to accelerate with high turns, now this is no longer necessary. The engine is not runnig hot and consumes less fuel.

The most important thing - the correct attitude of the injector pump.

a few moe pics

regards from austria

michael

pics

:-)

my brother wanted to drive the lux as the first, no matter how

things to be done:
-wiring of the ECU (need digram)
-make the boost-indicate-lights at the instrument-cluster work

Regards

Michael

ive got a 2l-t minus turbo and fuel pump if someone is interested give me $200 and you can come and get it