To tune or not to tune

[Richo460]

I have the same turbo as you 97_gq_lwb and the only way i could see to adjust the gate as on the external thread. Is there a spring or something inside? I am not too familiar with turbos hence doing this for experience. I have worked with pressure relief valves before but they don't work like the wastegates.
I will wind the fuel up a little more and see what it does.
Is it nessesary to adjust the injector timing when running boost or only for more extreme applications?
I have been told the rig blows a teeny tiny amount of black smoke but i need to see it for myself.

[nissannewby]

Hey mate just grab yourself a boost tee and some rubber hose. Plumb the boost tee in where there small rubber line runs from your compressor to your wastegate, place in an easy to get at place and all good.

[Richo460]

Is that for an external waste gate? i just have a cheap chinese turbo off ebay with the internal type setup. I wish i was at home to have a play with it but i won't be back for another month.
Well if i blow the TD42 i have a brand new bombed 355 stroker in the shed waiting to be put into something and some hair driers attached.

[97_gq_lwb]

Ok your turbo has a threaded rod coming off the actuator.
How it works is that arm pulls tight closing off the wastegate as boost rises it pushes the arm out opening it up.
So by making that arm on the actuator shorter you are increasing your boost.
Does that make sense ?

[Richo460]

yeah i'm with ya, i have it adjusted up so i am thinking i need more fuel for more boost.

[97_gq_lwb]

I would say you need a fair bit more fuel mine was wound in before i even fitted the turbo then i wound it in even more .


I had to turn the idle screw back out a fair bit as well once i wound the fuel up.
Then adjust your aircon idle up to suit otherwise it will rev high with the aircon on.

But when i fitted the 3 inch exhaust i had to wind the actuator back out a fair bit as it was maxing out my 15 psi gauge.

[Richo460]

i am in need of a complete new exhaust, i might get one sooner rather than later.

[966motors]

o fcourse to tune