Advice my tune map - self tune

[stingray1211]

I have a e-manage ultimate and did my own tuning with the help of a innovate a/f meter.

currently the A/F is about 12.8-13.1 on WOT till redline so i think it is pretty decent.

Picture of the map



how much timing can i advance further? I already tried to increase from the 2.0 to 4-4.5 and serious i cant tell the diff.

the timing question is hard to find - i read some cars can increase it by 6-7 deg and it is ok.

I am running RON 98 here in singapore.

some mods
JWT intake - custom air box similar to cold air
Stillen Z-tube with heat shield wrap
Kenstyle exhaust
HFC
Motordyne plenum
re-routed the coolant line so that it doesn't flow into throttle body - temperature in singapore is always above 26 deg C.
Engine torque damper
grounding cables

[Tollboothwilley]

I think that I have 2* from base...at about 3500 it bumps up 1/2* every 500 rpms. At 6500 that would be 5* I believe. Mine is a progressive timing increase based off what we saw on the dyno.

[Tollboothwilley]

you shouldn't be applying the increase in timing as the throttle position opens, but more at the RPM's increase.

Open loop/Closed loop...you don't really have control with the eManage until you are about 80% open on throttle.

Keep that in mind, what you do BEFORE 70-80% isn't gonna do much.

[stingray1211]

thanks. will try to increase it to 5 ..

I understand the open loop concept but some how it the butt dyno tells me the acceleration is slightly better when i set those below 60% as well..

I am not sure how fast the close loop compensates when the e-manage tries to add the timing when not under WOT.

[Tollboothwilley]

You can set them down there, but from left to right it should be more like this:

60% 1 1 1 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5
70% 1.5 1.5 1.5 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6
80% 2 2 2 2 2.5 3 3.5 4 4.5 5 5.5 6 6.5
90% 2 2 2 2 2.5 3 3.5 4 4.5 5 5.5 6 6.5
100% 2 2 2 2 2.5 3 3.5 4 4.5 5 5.5 6 6.5



Just as an example. Hopefully that makes more sense.

Less throttle = less timing (increases as Throttle increases)
More RPM = more timing (increases with rpms)

Its not til about 3000 that I would start to have the gradual increase in timing...or maybe even 3500.

[Tollboothwilley]

You can control timing anytime, but you can't control fuel when its in open loop.

[rbm g35]

Originally Posted by stingray1211

thanks. will try to increase it to 5 ..

I understand the open loop concept but some how it the butt dyno tells me the acceleration is slightly better when i set those below 60% as well..

I am not sure how fast the close loop compensates when the e-manage tries to add the timing when not under WOT.

Now this is interesting!!! I have'nt tuned my g yet but have tuned a quite a few c5s and z28s ,that being said if your timing map is graphed like I think it is there is a "curve" in it which at higher rpms/load there should be less timing.I know i know american cars are different but the principles are still somewhat the same. Also on c5s (vets) there is a separate map for wot/rpm/load.Open loop is primarily for cold starts or tuning w/o maf. I can fully undersand the butt dyno feeling but without a dyno i would raise in increments of 2 degs. ,check for knock, if present ,check a/f ratio, backoff in affected areas and a little before affected areas, look at your map/graph smooth it out , wash, rinse, and repeat. This method has gotten me very close to optimum performance getting very little gains when i dyno. btw can you post up a stock spark ignition map on advance? hmm flame suit?