Outer Limits 4x4 Board

hi guys
i have a 92 80 series landcruiser with the 1hz engine its done 437 000 kms and i am now looking to turbo it...
i want to run about 10-12psi
my question is that what work engine wise needs to be done to cope with running this? change injectors etc etc also would i be able to run higher???
cheers mikee

437K klms is starting to get up there.....

do a search, you will find a lot of controversy surrounding turbocharging the 1HZ. lots have done it and said it is fine, lots have done it and said it goes bang................


With the amount of klms you have on your truck, I would seriously consider a reco or at the least a freshen up (rings, bearings, head, injectors and pump) before bolting a turbo on......

A standard 1HZ should cope with a turbo if your running less than 12 psi unless its on its last legs, I Have fitted a fair few to customers trucks with good results.

at 400,000kms you really need to know what sort of nick the motor is in, if its had the pump or injectors done already ect, but if it is running well ie. no excsive black or blue smoke, fuming thru the pcv, using oil ect you should be pritty right

You will need to re-tune the injector pump to increse the fuel flow ( Not to hard a job if your capable of fitting the turbo ) If you fit a Pyro gauge to it at the same time under load it should get to 550-600, if its peaking over that you will loose reliability

My comp truck runs a stock 1HZ engine and is happy running at 20psi boost with a top mount intercooler and lots of fuel peaking at 900 on the pyro, but be warned the higher boost and the higher on the pyro you go, you will make more power but the more chance of things going ka-boom increase a stuipid amount

You need to look at all engine tune basics as well. Valve clearances, injectors pump timing to get the best out of it. A pyro is a worthwhile investment.

Does it use oil? Remember that if something is starting to fatigue or fail, turbocharging will only move that forward quicker, you may be in for a world of pain.

"but be warned the higher boost and the higher on the pyro you go, you will make more power"

This statement is not correct, more air into a diesel reduces egt's but only makes slightly more power, its the fuel delivery that changes everything. Both power and egt's.


Andy

Dzltec wrote: more air into a diesel reduces egt's but only makes slightly more power, its the fuel delivery that changes everything. Both power and egt's.


Andy

Finally another someone who understands turbo diesel engines!

You should pipe up more often Andy

Cheers

This maybe of interest too.

http://www.outerlimits4x4.com/ftopic209 ... highlight=

Probably should do a compression test to ensure the compression is OK.

This would/should probably be done as part of the install, if paying someone to do it, and if it is a turbo kit then the kit manufacturer may require it for the warranty to be valid.