Tell me what you guys think! Should I play more with the timing and fuel?

3rd gear street pull, flat straight road to redline

2941 0.00 22
2871 0.00 35
2917 0.91 15 <--flooring it
3058 0.91 6
3328 0.91 4
3730 0.93 6
4125 0.93 6
4480 0.93 6
4867 0.93 6
5148 0.93 7
5421 0.93 7
5671 0.93 7
5929 0.93 7
6148 0.93 8
6335 0.93 9
6566 0.93 10
6769 0.93 12
6946 0.93 15
7121 0.93 16
7308 0.93 17
7484 0.93 17
7644 0.93 17
7796 0.85 11 <--redline

 

I would add fuel and timing in peak torque area which is between 3000 - 4000. I am running 10 degrees right now no problems heard of some running 13 degrees in peak torque on 93, but I would just stay conservative.

 

That's asking for it. Have you logged that?

 

well I would assume 13 is asking for it, plus I had a mail in flash and it was already at 9's so I just added a degree. Plus I am on 93 and your on 91oct, so maybe that is why you may think that

 

Have you logged it?

 

No just on the wideband only, havent logged it yet. But I feel since the mail in flash is suppose to be conservative I can add a degree and get away with it on 93 octane. But I will log it tonight to check it out see if any timing is being pulled.

 

10 degrees is a boat load of timing. 13 is just insane on pump gas.

hmm... but i live in cali and we got 91 octane...

 

My bad I have it at 9 degrees I just went to get my laptop out the car at work just to check, and it comes back up to 18 by 7000 rpm. It was mail in flashed to 8 at peak torque@ 20psi if 240% is some where around 19-20psi.

 

which load cells are you looking at?

 

3500 - 4500 rpm and 220% - 260%(which is suppose to be 23psi

 

so basically its a ok to run 10 degrees of timing at rpm's of peak torque i.e. 3000-5000 rpm? can someone explain that a bit more
what about the upper rpm's. its going as high as 17 degrees

 

No, every car is different. This is why when people get on here and state these kind of things , it really irks me. "hey, he's doing it no problem, I might as well too" then your motor melts.

Your car is different then someone elses car, regardless if the mods are the same or not.

Your car might be more sensitive in that area and knock to high heaven, or it might not.

That is why I feel logging is more important then anything if people want to start tuning their own cars. This is where true tuning knowledge starts building from.

 

well, as long as egt temps are under 1600, then i should be fine, right?

 

In general thats true, however too much advance may not lead to high EGT's even though its detrimental..

My car is happy with a more aggressive tune than most could run, and therefore is the reason why I don't post my maps very often..

I have indeed run over 10 degrees of timing at peak torque, but in general, 8 degrees is what I see frequently, sometimes less, sometimes more, depending on the tune and fuel.. I have run as much as 23 degrees of timing at higher RPM (with the stock ignition, with an upgraded ignition I have since backed it off to 20 degrees)

I do generally run lower boost than others, and more timing and slightly leaner than others.. If I raised the boost I'd have to add more fuel and back off the timing.. same with a bigger turbo at the same boost levels (due to additional air at the same pressure, its more dense)

Some of the big turbo cars are running 17 degrees of timing or less.. Others who have their fueling and ignition sorted out, can run more... But big turbo cars have to overcome laggy midrange and low-end performance by using additional timing and leaner mixtures in those lower RPM ranges..

The most important information I can give anyone is to LOG LOG LOG, and then LOG SOME MORE.. Even before you ever begin to tune, you really need to understand what it is that YOUR car needs.. We can only give advice to someone who wants to do it themselves, we can't tell you what your car can do..

 

well put MalibuJack