How many Kms is to too much to turbo a 1HZ?

[Punk_Cruiser]

I am very close to purchasing my parents 97 80 series gxl landcruiser. I will be using it mainly for towing. At the moment it's performance leaves a bit to be desired on long distance stretches with little power for going uphill and such. So I am thinking about a denco turbo kit for it, (I will not be easily budged on brand of turbo kit as I have already done my own comparison) but I am wondering whether I still can without a rebuild.

I based the decision on going the turbo route after driving my parents 100 series factory turbo diesel towing the same load and trying to compare the two is like chalk and cheese. with the 100 you wouldn't think there was anything behind it apart from the fact it was in 4th gear and it generally used less fuel doing so.

The 80 series has 260 000 kms on it and serviced regularly which I don't think is too much for a 1hz; as I have driven a 75 series ute with 500 000 km on it and it ran fine, ( Iam lead to believe they have a service life of 500 000 to 600 000 kms) but as the title suggests is 260 000 kms too much for it to handle a turbo? The only other option I can think of is putting a v8 in it, but I believe it would cost too much money and not be woth the hassle for what I want to do with the cruiser at the moment(besides I don't have the money nor knowledge/expierience).

Any thoughts, expieriences or info would be appreciated

Thanks in advance

[beast2h]

no... if the engine is in good working order and the kit is fitted and tuned properley.

[Punk_Cruiser]

Thanks Beast 2h.

Yeah I would deffianately get a reputable place to do it. I wouldn't trust myself as I wouldn't Know what to do and I get the feeling that diesels can be tricky to tune.

[roscoFJ73]

Ive heard of some dealers not wanting to turbo those over 200000 klms. Others may want to give it a compression test.

[Bernz]

I bolted a Denco kit on my 1HZ in a 75 series cruiser with 290K on it and it was all good for the 3 years I had it after that. You could always throw a set of big end and main bearings in at the same time as you have the sump off anyway to fit the oil return spear to the sump.

[Davo DX80]

Had a Safari System fitted to mine at 220000km's. Been on for 25000 km's now. I tow a 2 tonne boat and run 315 / 16 tyres. Runs all day in 4th gear no probs. Bigger tyres are good for keeping the revs down in 4th. Sitis on about 2700rpm just over 100km's. The boat gets towed up the beach twice a year and the engine temp never gets hot even in low range for long periods.
no probs as yet.
Hope this helps.

[Muckinhell]

Might wanna get the injectors done if they havnt been done every 100thousand as is good practise for them. And as long as compression checks all should be good. If you remember that writter for 4wd monthly had that standard 80 series and had turbo fitted with something like 300ks or so on it no worries...

[Punk_Cruiser]

Might wanna get the injectors done if they havnt been done every 100thousand as is good practise for them. And as long as compression checks all should be good. If you remember that writter for 4wd monthly had that standard 80 series and had turbo fitted with something like 300ks or so on it no worries...


Yeah I think the injectors may need doing. I have been doing some reading on the Denco diesel website and apparently they check the injectors prior to installing the turbo.The writer isn't Glen by anychance? Either way does the writer come on here often?

Thanks everyone, all the info really helps a lot. The only info I had about turbo kits prior to jumping on the forum was about sopmeone I knew that had a safari kit on 1hz 100 series gxl and the engine blew up he reckons. I don't think it was a fault of the kit but probly more so the driver.:crazy:

Now all I need to do is buy the cruiser and save the pennies for the kit.:waycool: :waycool: Does anyone know if there is someone who is a Denco dealer/stockist for their turbo kits in the NT, preferably Darwin as that's not too far from where I live. Otherwise I might have to organise a trip down south or across to QLD at some stage.

cheers

[lshobie]

The mining companies rebuild the 1HZ engines at 10000 hours here in canada, in hwy kms that is probably about 500,000 - but keep in mind that mine trucks are abused with high revs and rough conditions all day long.

I just turbo'd my 1HZ with 4600 hours on it - runs great!

[marki]

I just had a turbo put on mine at 265,000. It was tested prior to the fitting, and all was well.

A word of advice tho' - although a bolt on will certainly work, if you don't modify the fuel pump when you install it, it may reduce the life of the engine - something to do with overfuelling.

[Grimsey]

i turbo'd my 80 series at 360 000km, done 380 000km now and have had no problems at all. still dosnt even burn any oil between 5000km oil changes. i did replace the injectors and it made no difference at all.

denco turbos have good results but there not watercooled so you have to be extra careful not to switch it off hot.

spend the extra and get a 3" exhaust makes a hell of a difference to the way it performs and sounds cool too.

[Punk_Cruiser]

Thanks Grimsley, It will defieantely be copping a turbo timer that's for sure and probly the 3 inch exhaust. Does it sound good with a 3 inch?

I always thought that irregardless of whether a turbo is water cooled and oil cooled or just oil cooled, when being worked hard they have to be given a while to let cool oil pass through the turbo housing before switching the car off. Maybe I was misinformed?

cheers

[Rufuss]

Hey Punk, definitely have the boost compensator fitted, especially if you don't have the (rather expensive) intercooler fitted. You wouldn't want to over-fuel it up there in the tropics.

I just had the compensator and 3" exhaust fitted to mine and can attest to difference it makes over just a bolt-on turbo. Not as much bottom-end torque as when the fuel was screwed up but much more when the boost kicks in and about 15% better economy. The EGT is significantly lower too, therefore safer for the motor.

Cheers

[jasjul]

The Antman(Anthony Kilner?) from the mag had a turbo fitted to his old 80 series 1HZ at about 307000kms by Berrima Diesel and was still going strong when he sold it with, I think close to 500,000kms on it.

[cac]

i'd be more concerned about the overall condition of the engine than the actual km...a poorly looked after 1HZ may not be suitable at 250,000km, but i don't see why a well looked after one would be a problem

as has been suggested, have a compression test done before hand....and if it comes up good, you should be pretty right

as for the cool down period for turbos...its beneficial to any turbo to let the engine idle for a couple of minutes before shutting it off...it helps bring the temperature down to something a bit more reasonable....150 degrees rings a bell for some reason....

[HDJ105]

i'd be more concerned about the overall condition of the engine than the actual km...a poorly looked after 1HZ may not be suitable at 250,000km, but i don't see why a well looked after one would be a problem


Exactly, and by well looked after I'd hope you would include "frequent fuel injection maintenance"

Injectors are very important, especially after being turbo'd, and injection pump bench test after 200k km too. Poor injectors and / or pump will soon kill a turbo'd 1HZ, especially if they weren't up to spec at fitment.

[Punk_Cruiser]

Exactly, and by well looked after I'd hope you would include "frequent fuel injection maintenance"

Injectors are very important, especially after being turbo'd, and injection pump bench test after 200k km too. Poor injectors and / or pump will soon kill a turbo'd 1HZ, especially if they weren't up to spec at fitment.

Thanks hdj105, pretty sure apart from injectors it's all good as my dad would replace the air filter every 5000 kms along with oil and oil fiter. Not sure about the condition of the injectors better ask him about that. Think I might get a mechanic to check it over once I buy it to give me an idea on anything that needs doing. I have to say though out of all the 1 hz powered cruisers I've driven it's one of the better ones though.

An ex-cop base 100 series I have driven (approx 2 years old when the owner picked it up) was using oil driving long distances, didn't have all that many kms on it either. Just thought for something fairly new that was a bit odd.

Thanks to the guy who mentioned the boost compensator, will be another must have after reading Mark Allen's article about fitting one to his troopy.

Cheers guys

[Grimsey]

i fitted new injectors to mine and it made no difference at all was waist of 500 bucks. hdj is always keen on injector maintence but if you have a pyro fitted you will soon know if they are not doing there thing as it will get hot. EGT's are what will kill a 1hz, if you tweek the pump a bit as everyone does to make them go its very easy to make them go over the 500 deg safe mark after the turbo. going up a hill with your foot to the floor in 5th they shoot right up, same as been in a to higher gear off boost. i put turbo spec injectors in mine but it was 5000km before the turbo, made no difference then to the way it went. and the local diesel injection service place said the pumps have a long service life if they have been feed clean fuel, and would only pull mine off to fit a compensator. and i would soon know if the pump had a problem.

the compensator stops the smoke off boost, and makes no difference once they come on boost as far as i can see. they also help allot with idle on intercooled trucks as they have the fuel turned up even more. there definatly worth the money, but you can live with out them if you drive to the way its tuned, dont floor it untill its on boost.

[Roadwarrior]

Doesn't really surprise me about the ex-cop cruiser using oil. Up here in Qld they leave speed camera units idolling on the side of the road with the aircon on to keep the equipment and operator from frying in the heat,

[HDJ105]

i fitted new injectors to mine and it made no difference at all was waist of 500 bucks. hdj is always keen on injector maintence but if you have a pyro fitted you will soon know if they are not doing there thing as it will get hot.


So how does one injector with poor spray pattern increase the EGT which is averaged and measured over 6 cylinders, and if you measure post turbo is also dampened by that?

One crook injector will soon hole a piston ;)


i put turbo spec injectors in mine but it was 5000km before the turbo, made no difference then to the way it went.


Well that shows that you serviced them before they went off, i.e. preventative maintenance. Did you actually test the old ones after they were pulled out?