How are my maps? i am totally redoing the maps from the previous "tuner" did (13.8 afrs at wot with 9 counts of knock) Ive gotten it down to mid 11 afrs at 8k rpm but is it running too rich at spool up? i noticed on my log that it seems a little too rich from 3k rpm on up. Also i am getting 2 counts of knock from 6300 rpm all the way to 7600 rpm but the afrs are 11.5 all through that range so is it to much timing? the log shows 9 degrees of timing in that whole range. thanks

 

Can you post a log as well?

 

http://www.sendspace.com/file/pgo3x1

for some reason the values are messed up and afr is under the fuel trim low value and knock is under fuel trim mid that is a 3rd gear pull

 

no offence dude but are you using a WBO2 sensor to read fuel or the narrowband in the car? its just that the resolution doesn't look right to me for a WB. also your timing looks like its pretty low for 93.

 

im using a aem uego to log afr in evoscan

 

The values are messed up most likely because you moved columns around in evoscan then logged right away. It does that to me as well. The trick is to move your columns where you want them, then restart evoscan before logging.

WB data is in the fueltrim_low column. I agree that timing does look a bit low for 93, that looks more like my 91 oct timing map. Either way, add a bit of fuel at 4250 rpm and beyond, that may help with the knock. Ideally you'd like to be around 11.5 at 4k and tapper down to ~11.1 at red line.

 

thanks. yeah that was it,i moved them around then logged,fixed now. how much timing do you think i should add that would still be in the safe range for 93 and where at?

 

First of all I'd make it to go richer from 7k (not leaner as it is now), also do not add timing until you sort out the knock. Where is the load in that log?

 

load is under column t under the baro section,that log is all messed up. ill try and do another 3rd and 4th log tonight.

 

Here is another 3rd gear run,what do you think could cause that knock?

http://www.megaupload.com/?d=KKQ8RZ1J

 

At 5.750 RPM AFR become 11.8 (0.2 leaner than before) and timing 6* (1* more than before - so I guess one of these things resulted in knock. Try richen it by 0.2 AFR there (so that it stays at 11.6 AFR from 5,500 till 6,600 RPM) or keeping 5* till 6,000RPM - one of these measures will eliminate that knock in my opinion.

Also I'd make it go richer from 7,200 and up - like 11.4->11.1 (not 11.4->11.2->11.4 as it is now) and possibly add 1* 7,500 if it will accept that.

As well, if you're threshold tuning your maps (I mean tuning on the edge of knock) you should know that for track use (I mean road racing) you'll most likely need to make it richer by about 0.3 AFR (because on the track increased temperature will cause knock in the places that are knock-free during normal pulls for logging). Most likely no need for that if you expect only DD and/or drag racing (not that much heat is generated under such conditions).

PS that is just my opinion based on how I tune my Evo - so take it FWIW

 

First of all you're running way too rich from 2750-4k rpm.

Similar to what VD said, pull a degree at 6k/230 and 6k/240. The row of 7's at 6k may need to be changed to 6's as well. I would also run a bit richer from 4k-onwards. Around 11.5 at 4k and tapper down to 11.1 at 7k

 

Thanks guys! yeah its super rich in the early rpms so that needs to be fixed asap. And this is my DD that occasionally gets raced(drag) on the weekends,so no Autox for me.

 

That's hitting a very low load for such a big turbo on 27 Psi, I'm guessing the intake has been changed, any intake leaks? Is there a boost log available?

 

As others have said too rich down low and too lean up top. also is your clutch slipping? your rpms go backwards in a couple spots where you have knock. your timing seems ok. That big block of 10's I would change your 290-310 load to 9's and from 320-350 i would change that to 8's.