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Thread: Timing question?

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Posts: 1-5 of 5
2008-12-08 00:50:55
#1
Timing question?
I want to know what guys who own or drive a gtir powered det run for timing on the distributor? I don't want to know what you were tuned for i just want to know what you set the distributor to? I currently have mine set to 15* and want to know if i should go up to 20*.

My ecu is definitely running 20* timing, but I want to know about the dizzy.

Again please only answer unless you have a gtir or are running a gtir motor in your se-r, nx, or whatever.

thanks
2008-12-08 02:02:47
#2
This question doesn't make any sense. There's no difference between the timing at the distributor, and the timing at the ECU. What I mean is, when you say "My ecu is definitely running 20* timing" you're saying nonsense. Things just don't work like that.

From what I know (and I know you wanted first hand experience, but hang with me here) the GTi-R ECU is designed to run 20 (maybe 21) degrees timing while in "timing mode". This means you need to adjust your distributor while in timing mode until you get 20 degrees timing. At this point the computer and the distributor are in sync. This is the way it was designed to run. If you then would like to advance timing further, you can "trick" the ECU by advancing timing past 20 degrees. Basically, the ECU thinks it's running 20 degrees, but you get more.

I apologize if you already knew all of this. It just seems like you're unclear as to how timing works.
2008-12-08 04:50:48
#3
Originally Posted by BenFenner
This question doesn't make any sense. There's no difference between the timing at the distributor, and the timing at the ECU. What I mean is, when you say "My ecu is definitely running 20* timing" you're saying nonsense. Things just don't work like that.

From what I know (and I know you wanted first hand experience, but hang with me here) the GTi-R ECU is designed to run 20 (maybe 21) degrees timing while in "timing mode". This means you need to adjust your distributor while in timing mode until you get 20 degrees timing. At this point the computer and the distributor are in sync. This is the way it was designed to run. If you then would like to advance timing further, you can "trick" the ECU by advancing timing past 20 degrees. Basically, the ECU thinks it's running 20 degrees, but you get more.

I apologize if you already knew all of this. It just seems like you're unclear as to how timing works.


Thankyou because I was a little confused on the whole timing thing. I know when my friend and I were tuning we had plenty of timing through the ecu, but we never checked the distributor. I finally checked my mechanical timing and found out it was only showing me like -30*, so I moved it to 15* and the car finally ran and boosted really well. Now I see why.... it was because the ecu and distributor weren't in sync with each other.

I really appreciate your post

Now I am going to put her back in timing mode and set the dizzy to 20* and see what happens
2008-12-08 14:19:16
#4
If you have a stock ECU, you'll want to put it in timing mode and set it to 20 (or 21?) degrees. If you have a tunable ECU with modified timing, you need to find out what timing the ECU is set for at idle, and try to achieve that by adjusting the distributor.

If the ECU was tuned with the distributor timing "off" then you'll need to re-tune after you set the timing on the distributor correctly by adjusting the entire timing table by the amount of degrees you changed the distributor timing by. Or, you can just leave things alone as nothing really needs changing. Unless of course the car doesn't run properly.
2008-12-08 17:59:50
#5
Originally Posted by BenFenner
If you have a stock ECU, you'll want to put it in timing mode and set it to 20 (or 21?) degrees. If you have a tunable ECU with modified timing, you need to find out what timing the ECU is set for at idle, and try to achieve that by adjusting the distributor.

If the ECU was tuned with the distributor timing "off" then you'll need to re-tune after you set the timing on the distributor correctly by adjusting the entire timing table by the amount of degrees you changed the distributor timing by. Or, you can just leave things alone as nothing really needs changing. Unless of course the car doesn't run properly.


See the weird thing was the ecu was tuned with the timing set at -30, so once I put it 15* it ran great, but I think I need to set it to 20* where it belongs because thats what the ecu is set for. The only issue I see is the distributor it really advanced looking, but I am starting to think that maybe one of the cams is off a tooth. Whatever the case I'll get it worked out.

Again thanks for the info
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