Wednesday, Mar 30, 2005 at 16:53
Hello Wilbur.
OK! mate, you have done nearly everything but the most important thing.
Firstly I must make you aware that I turbo'd a 1997 75 series Troopy 1hz a few years ago.
It has never moved a milimeter abouve normal on the Temp Guage since that time including driving around the Murray Sunset park two weeks ago on the Labour day weekend in 45C(shade) heat, air con on at a 3.5T load all up.
The most important thing when aftermarket turbo-ing is the fuel delivery as pointed out by the last members to answer your post.
Over fueling in a diesel will see your temperature (yours and the vehicles) rise exponentionaly.
The only solution is (1) to have fuel pump overhauled and set for boost required.
(2) Have an aneroid fitted to pump at time of overhaul - This a boost compensation device that lets the pump know when booster is on or off. Very important for the pump to know such a thing, because it it doesn't it just keeps P MI S S I N G the fuel into the engine regardless.
(3) have the injectors inspected and if necessary what ever needs to be done to same.
I had all of the above done at time of turbo fitting on the advice of people who have a few in their life time and it hasn't missed a beat. Just sensational.
COST:
Above method $5,200
Others including slapping a turbo on, running up on a dyno and adjusting the fuel screw until it looks good. $2,500 - $3,000.
After all of the above I also had a mandrel bend straight through exhaust made and fitted by the exhaust crew in Lillydale,
Melbourne who did the R & D on exhausts for Safari turbos.
This ironed out th 'turbo lag' 'quiet a lot .
If it still keeps over heating then its time to tackle all the other things which you have done.
It's my own opinion and others may agree or disagree, whatever, but when adding an after market turbo it should be done as above.
Unfortunately the mighty $ and its availablity talks as usual, however cheaper is not always better.
Oh! by the way,
mine has never been dyno'd as the pump has been set at 10% BOOST and bench tested with the matched injectors. It never Overheats, goes like S H I T off a shovel, sits easily on 110 - 120kph and returns between 12 - 15l per 100K depending on how I drive it and what speed I sit on.
This may be food for thought and assist you with your problem.
Regards
Ken Robinson
AnswerID:
104342
Follow Up By: wilbur - Thursday, Mar 31, 2005 at 21:11
Thursday, Mar 31, 2005 at 21:11
thanks for the tips im going too have to talk to a few work shops i did try turning fuel down and it would not pull the skin off a rice puding ,it does not go that
well a mates NA goes nearly as
well. And fuel consumtion is very high around 300-400km out of a tank it has always used a lot of fuel and never pulled that
well from new .
FollowupID:
361915
Follow Up By: Member - 'Lucy' - Thursday, Mar 31, 2005 at 22:48
Thursday, Mar 31, 2005 at 22:48
Me again Wilbur.
Firstly how about telling me where you are located.
Secondly I went and had a look at the specs for 79 on the net and it is the exact same 1hz that I have in the 75.
Thirdly: This is a hard one as to respectfully tell/suggest/strongly recommend to you that you cannot dick with the fuel settings of this engine unless it is done in a pump
shop under controlled conditions with the injectors serviced/matched/tuened, whatever , to the pump settings for the turbo.
Fourthly: the only way that the rotary pump on this engine knows that a turbo has been fitted is if the pump has been fitted with an aneroid.
Toyota all have aneroids on their factory fitted turbo models. This has to be the clue that you follow.
If you are in Victoria let me know and I'll give you some
places to ahve a chat to.
Regards
Ken Robinson
FollowupID:
361937