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Sooooooo JDM
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1,220 Posts
I'm running: (I had to swap my load units to figure it out for PSI)

37 @ 0 Psi Flat
26.6 @ 5.5 Flat
20.3 @ 9.9 Flat

Then it curves like a "U" @ 14.3 PSI, 16.4 @ torque peak, 17.1up top

" " @ 18.7 PSi , 15.7 midrange --->16--->16.4 @ 8~8.5K

This is on Sunoco 94. Your ignition map seems pretty close to mine. I'm running pretty high timing for part throttle (upper 40's), per Blkmgk's map circa 2 months ago. From 260 KPA on up I'm running ridiculously low timing, as I'm on pump 99% of the time. Better safe then sorry.

Ryan
 

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Sooooooo JDM
Joined
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1,220 Posts
bad94sup said:
Try to make some pulls with this same timing with some race fuel in the take to separate engine noise from true "knock"....

Andrew
That's pretty much the best advice anyone can give you. Don't try to build a good knock noise table on pump. There are too many variables. Drain your tank, throw about 3-4 gallons of C16 in and let her rip. Make sure you do some pulls down in the lower gears as well as the higher gears. This will allow you to get a good idea what your engine noise is. There is no magical universal setting and trying to use the same knock table from car to car is not going to work correctly. Depending on individual setups, different engines make different noises at different RPMS. Don't run your timing stupidly low on race gas. Your settings above seem fine. You may as well enjoy the gas while you got it, work on your higher boost timing map. Preferably at a track as you will get to the point of diminishing returns with timing and need a way to know when you are there. You only want to advance it as far out as it takes to peak out power. A dyno would be even a better idea but...
I would also recommend saving any high boost timing to a "race map' that you can DL at the track. It only takes a minute to upload. This way you can kill your timing and add extra fuel above say 20 PSI in the event you blow off a WG hose, the boost solenoid quits working, you jack up WG duty cycle, you check boost WG invert by mistake, you jack up the Boost Target Comp table, ETC, ETC. You get the point, there are a lot of ways to run high boostby mistake on pump if something goes screwy. This is a big advantage I think we have over the alphabet soup crowd. Go read up at the top of the Drag forum, an EMS could have potentially saved him an engine.

Ryan
 

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Sooooooo JDM
Joined
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1,220 Posts
Olivier Caza said:
I wish I could be as good as you guys with the AEM...seems so easy! I understand pretty much everything what you're saying, I just don't know how to apply it on the AEM program itself!! :D

-Olivier
Olivier -
Don't give up! Just save your map, make some small changes, and then log and see what happens. The back arrow can be your friend! :D I can't tell you the number of times I accidentally plugged some crazy ass number in a table and scrambled with the mouse for it. Just make sure you log (internally) as often as you can and see what makes the best power. Seat of the pants will only get you so far, as I said above, but it will get you in the ballpark. You'll find that most of us who have experiemented have come with in 3~4 degrees of each other in timing, depending on gas quality, ETC. The laptop has pretty much become a permanent fixture in my car.


Ryan
 
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