1990 HZJ77 (3 Viewers)

[Gun Runner 5]

Progress so far .....
Garrett turbo installed
Oil and water lines for turbo cooling installed
Both heat exchangers installed
Intercooler installed (temporary until final brackets are installed)
Things to do .....
Waiting on rebuilt injectors
Connecting heat exchangers to Intercooler
Finish 3" exhaust
Install oil catch can
Install mechanical water temp. gauge.
Install 24V recirculating pump.
Hopefully the project is completed by mid September.

 

[Gun Runner 5]

Interesting facts about injectors (well at least interesting to me).
Cummins offers a variety of "nozzle" upgrades based on the amount of horsepower you are trying to achieve however Toyota does not. With the 1HZ you are basically relegated to one nozzle size. (or so it seems).
Rob elected to have custom nozzles manufactured for my engine / turbo / Intercooler setup. (They are truly one of a kind). Under high magnification and using diamond drill bits a lab was able to increase the "fuel delivery" capacity based on our stated goal of 190 horsepower.

 

[Gun Runner 5]

Things to do .....
Waiting on rebuilt injectors .............................................check
Connecting heat exchangers to Intercooler ....................... in process
Finish 3" exhaust ...........................................................might be a temporary setup to make the September event.
Install oil catch can .......................................................check
Install mechanical water temp. gauge...............................check
Install 24V recirculating pump. ........................................check

 

[Gun Runner 5]

Although Robs still "tweaking" the engine (adjusting fuel and timing) and will keep the Cruiser for a couple more days, I did get a chance to drive it this morning. All I can say is WOW. The difference is unbelievable. When the engine was normally aspirated it was common to see temps. in the 1,100°+ degree range on even the slightest incline but now those temps. hardly exceed 800°. More details and photos to follow.

 

[Gun Runner 5]

Decided to go with a manual temp. gauge on a permanent basis.

 

[WanderinWhitlows]

Although Robs still "tweaking" the engine (adjusting fuel and timing) and will keep the Cruiser for a couple more days, I did get a chance to drive it this morning. All I can say is WOW. The difference is unbelievable. When the engine was normally aspirated it was common to see temps. in the 1,100°+ degree range on even the slightest incline but now those temps. hardly exceed 800°. More details and photos to follow.

After this house remodel is done I may need you to ship Rob to me as I'm growing weary of rolling the dice with my life when I have to get onto the interstate.

 

[Gun Runner 5]

After this house remodel is done I may need you to ship Rob to me as I'm growing weary of rolling the dice with my life when I have to get onto the interstate.

Unlike some that mount the boost gauge probe near the turbo, we are reading between the Intercooler and the intake where the reading is more representative of actually boost. At 12psi, acceleration isn't an issue.

 

[OGBeno]

Unlike some that mount the boost gauge probe near the turbo, we are reading between the Intercooler and the intake where the reading is more representative of actually boost. At 12psi, acceleration isn't an issue.

Glad Rob was able to translate that information to you in a clear manner so you could relay it to us.

 

[Gun Runner 5]

Glad Rob was able to translate that information to you in a clear manner so you could relay it to us.

I'm smart enough to at least take notes.
Heck Onur, I'm just trying to sound like I'm not a complete mechanical dufus so cut me some slack.

 

[Gun Runner 5]

You combine a FAST spooling Garrett turbo with a 1HZ and throw in an unrestricted 3" exhaust that runs out behind the front tire (temporary location) and you get a sound that is part big block V8 and part jet engine.

 

[chrisspaulding]

Interesting facts about injectors (well at least interesting to me).
Cummins offers a variety of "nozzle" upgrades based on the amount of horsepower you are trying to achieve however Toyota does not. With the 1HZ you are basically relegated to one nozzle size. (or so it seems).
Rob elected to have custom nozzles manufactured for my engine / turbo / Intercooler setup. (They are truly one of a kind). Under high magnification and using diamond drill bits a lab was able to increase the "fuel delivery" capacity based on our stated goal of 190 horsepower.

Awesome!!!

 

[Gun Runner 5]

Some temps ........ On the air / water Intercooler setup.
After pushing the 1HZ fairly hard ...
EGT's never exceeded 850°
Intercooler was in the 130° range
Radiator was approximately 125°
First inline heat exchanger was approximately 105°
Second heat exchanger was approximately 90°
Very happy with the results so far. First real test will be next weekend.

 

[61Mk+]

This is incredible! I'm hooked.

By the way, by 'manual gauge', do you mean analog?

 

[Gun Runner 5]

Hold on while I "Google" analog.

 

[coldtaco]

Is that intercooler radiator or engine coolant radiator?

 

[Gun Runner 5]

Engine coolant radiator.

 

[coldtaco]

Wasn't your water temp like 195F before the turbo?

 

[Gun Runner 5]

Wasn't your water temp like 195F before the turbo?

In the engine block .... Not the radiator.

 

[wongtsenhin]

Age catching up, please do not speed.

 

[Gun Runner 5]

Two things I learned this weekend while driving my 77 Series for 16+ hours.
#1. The 1HZ really comes alive with a turbo. It's a whole different engine now.