Some timing input
#1
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Hey guys, I know that there are a few of you out there that are like me and want to learn as much as possible. That way when something goes (hopefully it doesn't) wrong, you know where to look. I have the Haltech platinum on my 06 350z, and I am currently running about 7.5-8psi with a turbo. I have my fuel dialed in, and it sits at about 11.5:1 throughout the entire WOT while in boost.
The timing is conservative, at peak torque it sits at about 11deg. It then start to climb to a max of 14deg at 6000rpm, and stays there to red line.
Now, what is considered "aggressive"? It is not a place where I want to be, but I am curious. I know that every car/setup is different too, and that there are other factors.
Any constructive input welcome
The timing is conservative, at peak torque it sits at about 11deg. It then start to climb to a max of 14deg at 6000rpm, and stays there to red line.
Now, what is considered "aggressive"? It is not a place where I want to be, but I am curious. I know that every car/setup is different too, and that there are other factors.
Any constructive input welcome
Last edited by BoostedProbe; 09-11-2009 at 09:39 PM.
#3
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Don't get me wrong I am not looking at going to 17*, but rather get an idea of how conservative my tune is and how much room I have.
Last edited by BoostedProbe; 09-12-2009 at 07:34 AM.
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The only way to find out how much room you have is to get it on a dyno, and see how much timing your motor wants. Otherwise, you're just guessing and not getting the most from your setup. Boost pressure, octane, compression ratio, etc, all play a factor into how much timing you can run before you start to knock. But if you want a number, I'd say 18-20* on a stock motor and pump gas is pretty "aggressive".
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So without getting into a full blown tuning discussion (becuase I know those are out there), in a nutshell, what do you guys look for when tuning timing on a dyno?
Do you advance until gains start to diminish, then pull back a few degrees for safety, or is that dangerous? What is the basic approach?
Do you advance until gains start to diminish, then pull back a few degrees for safety, or is that dangerous? What is the basic approach?
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![Default](https://my350z.com/forum/images/icons/icon1.gif)
So without getting into a full blown tuning discussion (becuase I know those are out there), in a nutshell, what do you guys look for when tuning timing on a dyno?
Do you advance until gains start to diminish, then pull back a few degrees for safety, or is that dangerous? What is the basic approach?
Do you advance until gains start to diminish, then pull back a few degrees for safety, or is that dangerous? What is the basic approach?
Last edited by Chris@FsP; 09-17-2009 at 05:52 PM.
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