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Hi guys,

i've been told that my GTR is running retarded, my Pwr FC says my idle timing is 20degrees,

That's ADVANCED. And just because the PFC says it's 20 doesn't mean it's running at 20. It all depends on when the PFC gets the trigger to start its calculation as to the correct moment to fire the spark.
Whats is the proper IDLE timing for a r32 GTR?
SEARCH. The question gets asked every other week
Does anyone know how to adjust idle timing on a PFC?

cheers!

RTFM? You can really only set the timing with a timing light on the crank pulley
That's ADVANCED. And just because the PFC says it's 20 doesn't mean it's running at 20. It all depends on when the PFC gets the trigger to start its calculation as to the correct moment to fire the spark.

okay so the standard gtr idle timing is less than 20 degrees..Gotcha, I also take it you're saying its like my computer isnt in synch with the engine? I was told that the timing on my crank is 4 degree's retarded. I posted what my power FC outputted because i was told by the workshop who installed and dynotuned my PFC that it was properly synchronized with my engine.

SEARCH. The question gets asked every other week

I appreciate the comment and understand where you are coming from, but I have searched and have not found anything specific enough to be my answer.

RTFM? You can really only set the timing with a timing light on the crank pulley

now now, no need to be impolite.. if i knew that i wouldnt be asking the question. I was told by reputable tuner that the PFC should have more than enough advancement to correct timing problems similiar to mine, but i'd have to pay for another retune for him to go further than that.. a different workshop originally tuned my PFC. My CAS is currently wound up full, but my engine is not pinging at all.. and apparently i'm still running retarded on the crank. the workshop that tuned the pfc says all is good, the other workshop says its off. Before spending another 500, I thought i'd try to find out more to see if i can test it myself.

my question again is in the power FC hand controller, what values do you change to increase the 20Deg to a higher figure.

base timing should be 20degree before top dead centre (ie, 20 degrees advance). this needs to be set at the CAS. you basically use a timing light to read the timing, then rotate the CAS position until it's right. any average workshop should be able to check and set it for you.

... what values do you change to increase the 20Deg to a higher figure.
If anything, you need to be adjusting some "offset" parameter so that the PFC handset agrees with the timing light.

RTFM. Or don't PFCs come with a manual?

If anything, you need to be adjusting some "offset" parameter so that the PFC handset agrees with the timing light.

RTFM. Or don't PFCs come with a manual?

TFM is in japanese mate.. Found some english Apexi manuals on the web, but the information is limited to "how to plug in" the PFC. The Handcontroller manual was a bit more helpful, showing how the navigate the menu's. However the manual is catered for tuning pro's, no real explanations what each item is, just how to change it.

you're right there is an "offset" parameter, but from what i was able to piece out though it seems both trailing and leading ign would have to be adjusted. I was hoping there would be a single parameter that handles both, but doubtful now.

Thanks to everyone who replied, really appreciate the time and effort.

please close thread.

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