Turbo on the 1Hz engine in LC 79

IMHO, the turbo needs to have a proper manifold to work efficiently, similar to extractors the exhaust gas evacuate from the motor faster, in turn spools the turbo up, standard manifold will hinder exhaust gases reducing turboes effectiveness, and I would think would (should) be a lot cheaper.
Oil cooled/water cooled: it's gunna need oil anyway, doesn't need really need coolant(more work),gains with water cooled are they tend not to need idle time in most instances, oilers should be idled down depending on how hard its worked.
Intercooler: definitely not needed, An intercooler cools the pressurised air making it denser, giving more oxygen into the motor, to make it go better again, you indicated you only wanted 25%, this type of set up will give you a lot more than that, but will cost a lot more too.
I own a 1HZ (not turbo) and have done a bit of research into this process due to its performance limitations and would have got the job done 2 days after buying my 105, but gotten used to it now, there where times when I muttered more power please but its always got there.
Another isue is the little gearbox that the 1HZ run, some have done multiple 100000 ks with out probs, others have had 3 in two years.
I now have a chuckle at the sign that says "overtaking lane ahead" ,to me it should read "overtkEN lane"
Shane

Hi Dick,
Agree with what shane says and would add that is seems an intercooler is also the go. Apparently it is boost and exhaust gas temps that are the issue for long term reliability - piston crown and head damage.
An intercooler will reduce the temp of the incoming air after it has been compresssed by the turbine. Reducing the incoming air temp helps redecuce EGT (it also increases the air density by being cooler and therefore delivers more oxygen).
My mech advises me that air to air intercooling is more effiecient then hotdog water to air intercooling.
I am also looking at the process and considering that I'll be in for a penny and in in four a pound so will probably do a 3in mandrel exhaust also. Best to get it done all at once so that the injector pump and bost are both set up correclty from the beginning.
Paul.

I have a 1HZ engine with Safari turbo fitted. No intercooler. Standard 5 speed gearbox. The conversion was already in the vehicle when I bought it. I understand (on trust?) that the engine was rebuilt at the time the turbo was added and different pistons and bearings were part of the upgrade to handle the turbo. the vehicle is almost on 500,000 km and I believe that would make about 90000 on the new engine turbo combination. I have driven it for most of the 90000. It goes very well indeed and has given no problems or hint of problems. I am in Adelaide if anyone wants a look at it.

Hi Dick,
I have a Denco turbo on my 1HZ Troopy.
I had it installed to give a bit more grunt and to try to make the Troopy more pleasurable to drive.
I initially had the Turbo installed (new big end bearings done at the same time) and left the stock exhaust system.
The improvement was noticable, especially when starting off from a standing start at traffic lights and on hills.
I later had a 3inch mendrel bent exhaust system fitted.
I can now accelerate up hills that the engine was flat on before.
To overtake other cars I just put the foot down in 5th gear and it does it easy. Before had to change down and hammer it.
I talked it over with a couple of Diesel mechanics before I fitted the turbo to the engine with about 260,000 kms on it.
On their advise I went ahead with the Denco unit (due to low boost and reputable Company).
I do not have any form of intercooler fitted and was advised by 4x4 shop that did the work that I didnt need one.
So far so good, the Troopy has now done 296,000km and I have had a good run with it.
I tow a Jayco Eagle Outback with it and really appreciate the extra bit of low down torque the Turbo provides when towing.
If you would like more info, email me and I will tell you whatever else I can.
Cheers
Tony

I have a 79 series 1HZ landrcruiser, I also instaled a Turbo kit 4 months ago. when i drove it at first the boost was set at 10 pounds. then 1 week later i got a 3 inch mandrel straight through and it boosted instantly at 14. and the power increased substantually!
the vehical already was fitted with a boost compensator so i never had any excessive smoke, i then incresed the fuel and still no smoke but an increase in more power.
I do however beleive i will need to get it tuned and have the injector pump advanced to suit the setup i am running.
next job is the denco water to air intercooler in the next few weeks.and maybe tget the boost down also as i think 14 pounds is too high, it might even make it go better running lower boost.
Cheers Chris

Dick, safari, dts, dynamic...all the large reputable brands are the way to go. The manifold is important, the less bends and length the better.... Intercooling will also assist with engine longevity, and give more power, but for a simple boost, all you need is a good turbo. your rev range is 1500-3000 so get a smaller one over a larger one...and dont forget the exhaust...3 inch

Dick,
I have the Safari turbo kit that i purchased second hand from the wreckers, I was lucky though because it came complete with all the bits and the turbo was off a 100 series landcruiser so the surprise when i opend the package was that is had the air to air intercooler where i sold later. I payed $750 for the complete kit. Had it inspected before instal by turbo mob in brisbane.
I know with the boost compensator the exceleration is smoother, but more responsive with out one. But the benefit of having one means ur less likely to over fuel there fore better fuel ecconomy.
Its a good idea to purchase a pyro-guage( measures the exhaust temp, very important).
Regards Chris

Hi Dick

I have an 80 and I fitted a Turboglide to it and it is exellent, it makes touring a real pleasure. The system is nice and simple and just works.

Have fun

Craig

Hi Dick,
To be honest I went with the Denco because that was the turbo that my local 4WD shop reckommended to me at the time.
I didnt want to spend huge amounts of $$ on it and I wanted a reliable unit. The 2 diesel mechanics I spoke with said Denco seemed to OK. They also said there were other turbo's available, put they were much higher in price than I really could afford at the time.
I would suggest you contact each supplier and ask what backup service they can supply if you do encounter problems while in remote country. For me the local 4WD guys were also prepared to assist if I had problems and was stuck somewhere due to a problem directly related to a failed turbo or blown motor as a result of the turbo. My Troopy is a 75 series so I dont have any boost compensator, so the idea of low boost, reliable design and low cost won for me.
I really have to agree that the 3inch pipe was the most noticable improvement in power.
Good luck in your turbo endevours
Tony