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Location:
WA
Registered:
May 2005
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Advancing ignition timing - 1G
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Sun, 29 May 2005 15:11
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Hey all,
i want to advance the ignition timing on my GZ20 turbo. Iv never done this before. I have no idea what i need except for a timing lamp - and i dont even know what to do with it. Im fairly mechanically minded but i just dont know whats involved with this particular adjustment.
Could somebody please give me a short description of what to do, and how far its safe for a stock (except for air filter) 1g-gte (3rd gen i think) to advance ignition timing?
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I supported Toymods
Location:
Perth, Western Australia
Registered:
December 2002
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Re: Advancing ignition timing - 1G
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Sun, 29 May 2005 17:13
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Given your lack of mechanical experience, and the fact the motor runs a knock sensor, it's hard to determine where you can safely advance the timing to. Advancing the timing is simply a matter of loosening the bolt that holds the dizzy in place and rotating the dizzy to move the timing light mark up or down the scale (advance or retard the timing). A general rule of thumb is advance the timing till the engine starts to ping under load (ie road test) and then back it off a little, BUT, with your knock sensor working to eliminate pinging and detonation - you will probably never know where that point is, as the computer will sense it and retard the dizzy as a safety precaution - which will also lose power in the process.
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Location:
Sydney
Registered:
May 2004
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Re: Advancing ignition timing - 1G
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Sun, 29 May 2005 18:53
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Do all cars have knock sensors?
More specifically, ae93 sx's?
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I supported Toymods
Location:
Perth, Western Australia
Registered:
December 2002
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Re: Advancing ignition timing - 1G
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Sun, 29 May 2005 22:31
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Assuming your car has a 100kw smallport 4AGE motor, and is still running the standard computer - yes, it will also have one.
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Location:
Adelaide, SA
Registered:
May 2002
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Re: Advancing ignition timing - 1G
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Sun, 29 May 2005 23:08
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I've heard most people report that the 1G "feels" better and more powerful with the factory timing.
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Location:
WA
Registered:
May 2005
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Re: Advancing ignition timing - 1G
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Mon, 30 May 2005 03:24
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. . . .Is it possible to disconnect the Det Sensor without the ECU giving error codes? I know that det sensors become quite ineffective once the motor starts revving past 3000rpm or so. I didnt realize that advancing ignition timing just meant rotating the distrubtor - iv done it on my old van a few times. How does the computer adjust ignition timing - as in, is it a physical system that rotates the distrubutor when pulses are sent from the ECU?
The ECU retards ignition just before shifting (auto box), through disconnecting the ECU control to the distributor, this will prevent the timing from retarding for sure, yes?
Also, is the transmission electronically controlled? the throttle position sensor works off a cable connected to the TB, but i was wondering whether it was possible to electronically increase line pressure?
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I supported Toymods
Location:
Australia
Registered:
November 2003
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Re: Advancing ignition timing - 1G
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Mon, 30 May 2005 03:29
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The ECU does it electronical by delaying the signal to send the spark.
All you do by moving the dizzy is setting the base timing.
Make sure the diagnostics box TE1 and E1 and jumped while doing this.
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Location:
Adelaide, SA
Registered:
May 2002
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Re: Advancing ignition timing - 1G
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Mon, 30 May 2005 03:32
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Disconnecting the distributor wiring would be a little silly. It'd be a fairly fruitless effort trying to trick the ecu into doing things - an aftermarket ecu however would be perfect for the job 
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Location:
WA
Registered:
May 2005
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Re: Advancing ignition timing - 1G
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Mon, 30 May 2005 03:46
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Why must i connect E1 and TE1 in the diagnostics box? btw, that small box is FULL of grease, so much so that i cant see the metal connections - is this how its suppose to be ?!?!?!?!?!
Is the det sensor that litlle green connector directly underneath the distributor?
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I supported Toymods
Location:
Australia
Registered:
November 2003
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Re: Advancing ignition timing - 1G
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Mon, 30 May 2005 03:54
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You need to do it to set the base timing.
And yes, its supposed to be full of grease so that dirt doesnt get in it and bridge terminals while you are driving.
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Location:
Arthurs Creek, Victoria
Registered:
May 2002
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Re: Advancing ignition timing - 1G
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Mon, 30 May 2005 03:54
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But I've advanced mine and it's much stronger than the stock ignition timing? What's going on, why can I run 20 degrees advance on boost?
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Location:
Adelaide, SA
Registered:
May 2002
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Re: Advancing ignition timing - 1G
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Mon, 30 May 2005 04:13
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Play with the timing on a dyno, see what results you get, then set it back to normal and play with the mixtures using an interceptor, and then see much nicer gains!
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Location:
Melbourne
Registered:
April 2003
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Re: Advancing ignition timing - 1G
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Tue, 05 July 2005 04:36
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having timeing issues with my 1G
my Diag plug only has an E1 pin... there is no TE1 pin
only other ones are
Fp
E1
Cco
T
+B
Vf
Ox
E2
Tem
Ect
Ig-
ne ideas which ones i have to short to do the timeing
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Location:
Central Coast, NSW
Registered:
February 2005
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Re: Advancing ignition timing - 1G
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Tue, 05 July 2005 04:41
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| Crossy wrote on Tue, 05 July 2005 14:36 |
having timeing issues with my 1G
my Diag plug only has an E1 pin... there is no TE1 pin
only other ones are
Fp
E1
Cco
T
+B
Vf
Ox
E2
Tem
Ect
Ig-
ne ideas which ones i have to short to do the timeing
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I noticed that too. SO I assumed it was meant T and E1.
However, I'd love to know for sure 
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I supported Toymods
Location:
Australia
Registered:
November 2003
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Re: Advancing ignition timing - 1G
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Tue, 05 July 2005 05:25
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It varies from Car to Car
T = TE1
So between the T (or TE1) and E1 (or just E)
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Location:
Castle Hill NSW
Registered:
March 2003
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Re: Advancing ignition timing - 1G
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Tue, 05 July 2005 06:03
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| stradlater wrote on Mon, 30 May 2005 13:54 |
But I've advanced mine and it's much stronger than the stock ignition timing? What's going on, why can I run 20 degrees advance on boost?
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Are you poking fun at us because you've got LPG ?
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