I'm reaching out for Tuning advice!! Something is Sapping the power in the 92 HDJ81, 1HDT
After an engine compartment strip down and cleanup, Installed the new parts:
GTurbo Grunter Extreme 2
3" Exhaust
Timing belt(all new belts and hoses)
rebuilt injectors & timed Injector pump,
Modified Anerod Pin last year-good
Boost Compensator dialed to 18 PSI
Checked Valve clearances- all good
Intercooler installed, but bypassed with stock crosstube till I figure this all out.
Also a new viscous clutch on the fan(someone mentioned it could have an affect?!)
The throttle response, in park, is dialed in to decent. Not as snappy as I like, but has very smooth ramp up.
Here is where I may have messed up: I took the WasteGate actuator off the Gturbo for paint(Okinawa rusts anything not painted). I reassembled and there was still preload pressure on the actuator.
The engine has no balls. turbo doesn't ramp up till @ 2000rpm. - it was at 1200(i think). I prefer lower end, as my foot is fuel conscious.
I saw a pic here that showed a wastegate actuator arm jammed against the hard heater line that runs between the turbo assy and the block.
Also read that I can hook up a air pump to the wastegate actuator line- to see where it activates.
I'm a newb- But is it unrealistic for the turbo to start ramp up at 1200 rpm- and still average 18psi (with an intercooler)?
Anyone's help is greatly appreciated.
I also ripped out the failing ABS system and have lots of other goodies- but only relevant stuff was listed for now.
After an engine compartment strip down and cleanup, Installed the new parts:
GTurbo Grunter Extreme 2
3" Exhaust
Timing belt(all new belts and hoses)
rebuilt injectors & timed Injector pump,
Modified Anerod Pin last year-good
Boost Compensator dialed to 18 PSI
Checked Valve clearances- all good
Intercooler installed, but bypassed with stock crosstube till I figure this all out.
Also a new viscous clutch on the fan(someone mentioned it could have an affect?!)
The throttle response, in park, is dialed in to decent. Not as snappy as I like, but has very smooth ramp up.
Here is where I may have messed up: I took the WasteGate actuator off the Gturbo for paint(Okinawa rusts anything not painted). I reassembled and there was still preload pressure on the actuator.
The engine has no balls. turbo doesn't ramp up till @ 2000rpm. - it was at 1200(i think). I prefer lower end, as my foot is fuel conscious.
I saw a pic here that showed a wastegate actuator arm jammed against the hard heater line that runs between the turbo assy and the block.
Also read that I can hook up a air pump to the wastegate actuator line- to see where it activates.
I'm a newb- But is it unrealistic for the turbo to start ramp up at 1200 rpm- and still average 18psi (with an intercooler)?
Anyone's help is greatly appreciated.
I also ripped out the failing ABS system and have lots of other goodies- but only relevant stuff was listed for now.
