Timing Values for low boost
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Timing Values for low boost I decided this would be the best place to post this, I have 15 degrees commanded for everything over .61 g/cyl over 2800 rpm. I' running off the WG spring and have seen as much as 8.5 psi. I haven't seen any KR.
I know I'm leaving power on the table, I just want it to be safe. My question is, is there a ball park "safe" timing to run for X amount of boost, also consider I'm running 241 heads. I'm sure I can run a few more degrees above 2800 to atleast 4500 rpm. Like I said, I'm just trying to get a ball park figure so I don't screw anything up.
I could ask this another way. When should you have your lowest amount of timing applied, the highest, and the intermediate ranges of timing that slowly decrease to the lowest amount of timing.
I know I'm leaving power on the table, I just want it to be safe. My question is, is there a ball park "safe" timing to run for X amount of boost, also consider I'm running 241 heads. I'm sure I can run a few more degrees above 2800 to atleast 4500 rpm. Like I said, I'm just trying to get a ball park figure so I don't screw anything up.
I could ask this another way. When should you have your lowest amount of timing applied, the highest, and the intermediate ranges of timing that slowly decrease to the lowest amount of timing.
I wouldn't go higher than you're at with straight pump swill and 10:1 compression. I'm running 18 with meth and 10 psi, and I feel I'm pushing the upper limit of "safe".
If you're just starting to tune it I would start out with 10 degrees or so until the a/f is spot on and work on the ignition advance from there.
If you're just starting to tune it I would start out with 10 degrees or so until the a/f is spot on and work on the ignition advance from there.
i run 15 for track/street as well. Its not worth the risking if you arent competitively racing. i go down to 13 at peak torq and then back to 15 after that in the upper rpms.
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I wouldn't go higher than you're at with straight pump swill and 10:1 compression. I'm running 18 with meth and 10 psi, and I feel I'm pushing the upper limit of "safe".
If you're just starting to tune it I would start out with 10 degrees or so until the a/f is spot on and work on the ignition advance from there.
If you're just starting to tune it I would start out with 10 degrees or so until the a/f is spot on and work on the ignition advance from there.
I'm going to add a few degrees under 4500 until I get KR or meet my N/A timing values which ever is first. Even N/A, I had 23 degrees, I know it will not be that much. I have a meth kit, but I'm an idiot and bought the wrong one. I'm waiting to hear back from snow performance, and see if they will let me trade out my controllers. The one I have is for a MAF set up.
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Mine is 15 from .61 g/cyl 2800rpm all the way to the bottom right of the table.
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My timing table looks the same as what you are describing. Really, in lower RPM's (peak tq) you want less timing, you can get away with a little more at peak HP. I have it flat above a certain point for simplicities sake.
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Not familiar with HPT but if your using EFI Live 2 bar COS, you can leave timing pretty much the same as N/A, maybe a little lower from 2400 rpm up in the 1.20 gms/cyl columb, then use the boost timing table to progressivly pull timing as the boost increases.
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Unfortunately mine doesn't have a boost timing table. The only thing I see that I could do to leave the timing the same as n/a is to utilize the AFR Correction and use negative numbers. I'm a simple guy, and that looks like it is anything but that.
