What do you guys think? I see I'm pulling a little timing but nothing too crazy.

Currently running the 93oct OTC map on the Cobb. With the mods I have, is there any room for tuning? It's seems pretty tight with what I have done. Less maybe in the lower RPM range

Two back-to-back 3rd gear runs w/ partial 4th gear runoff

Mods;
Speedtech 3.0 xpipe exhaust. No cats
K&N in open airbox
SRM 4.5" intercoolers w/ their 2.5" plumbing
Cobb 93oct OTC tune

Two

 

I'll take a looksy

the car will load up more in 4th gear....do you have any 4th gear logs?

There's no ign. timing in this log. That might help as well.

AFR's look good...but ST fuel trims are doing some work to hit target.

 

do 2500-7000rpms in 3rd gear, add ignition like Evo said

 

Your AFR's look so much better than mine at partial throttle on a STG1 91ACN tune. No strange hiccups at partial throttle and as it builds boost. I even threw in 2 gallons of 100 octane to see if it would help out.

 

Thanks for the input, guys! However, I'm not sure i can get the actual timing on the datalog with the current Cobb software. I'll have to look around more.

 

At WOT it doesnt look like you're making close 1 bar of boost either. Are you sure you don't have any leaks?

 

I think you're right....for some reason it's not in the base logging table when just using the AP...which is weird.

 

I'm no tuner, but both of you datalogs look pretty good with minimal timing being pulled, strong boost pressure, and safe AFRs.

Perhaps Sambo or one of the other tuners can weigh in.

 

if we dont know timing how can you know if car is running good or not? I see -2.5dgrs retard at 4000rpms, but from how many degrees ? Its one to have it tuned for 10 timing in the middle range and another thing for 2-13 or even 16 with good gas... also outside temps have a huge impact on logs depending on boost

also +6dgr C for a pull of 2500 rpms seems a lot for 4.5ICs.. guess those turbos generate a lot of heat for only 1.2bar