need some feedback on these maps

cutter · 09-03-2006, 11:56 AM

this is for 75lb injectors and z32 maf with s4 cams. i have been expirementing with the timing map, but i just want to make sure i am not getting to crazy or not crazy enough.

input wanted!!

i also have the afr set to around 11.3-1 i am going to bump it up to 11.9 or so. and i need to smooth it out a bit i just did a few 3rd gear pulls to get it close.

calum

wnwright · 09-03-2006, 01:08 PM

Your last two columns in the fuel map look out of place, they are much leaner than the columns to the left. And your throttle poision scale looks off also (Your last column looks to only be 62 tp, which I guess really isn't a bad thing, but just a note compared to other det tunes).

What FP are you running to get that to run right?

cutter · 09-03-2006, 05:24 PM

well when i got the tune from calum it was extremely lean bc he just took a shot in the dark at my k value. but when i got the k value set right it was at like 10-1 afr so the last 2 colums on the fuel map are tuned for wot and they are still rich like around 11.3 to 1 . i dont know any thing about the the throttle postion scale. i will look into that after i get the timing maps right. i am running 44psi with the vacume hose off but when i connect it it drops to around 40 psi.

i was trying to get the car ready to race at ennis on saterday but i had a bad vacume leak and my clutch started slipping. i only ran a 13.0 it was dissappointing.

wnwright · 09-03-2006, 10:10 PM

Well with fuel values like that I would say your K value is off still.

How did you calculate your K value?

wnwright · 09-03-2006, 10:21 PM

Working from 58F3 hex for 370cc and stock maf....

I got 5592 hex for z32 with 72lb at 3bar.

cutter · 09-04-2006, 03:14 AM

i am running 75lb injectors. i just looked at the fuel map and under full load in high rpm calum had me set to 10-1 afr so i just changed the k value till i got that. then i leaned out the fuel map. i am still a little lean at idle like 15-16 -1 but i was at 24-27-1 afr before i changed the k value

how did you find the 5592? i was just going by my wideband.

wnwright · 09-04-2006, 02:55 PM

I started with a known K value (370cc injector and stock maf). Then multiply by the differences between mafs and injectors respectively.

Do you have the original bin calum had on there? I would like to see that also.

Are you running a front oxygen sensor???? Cause it should run at 14.7 since it is flagged closed loop.

wnwright · 09-04-2006, 03:02 PM

Quote:

Originally Posted by cutter

calum had me set to 10-1 afr

How did you figure that??? Liveedit? Cause I don't trust what it puts for AFR. Cause stock roms show up as 10:1 on there even....

cutter · 09-04-2006, 05:13 PM

yes i am running a front 02 i had the car on my wide band. it was reading 10-1 afr. i will post calums origonal map

cutter · 09-04-2006, 05:19 PM

here is calums origonal map. it was running close to 27-1 afr at idle and around 16-1 in high rpm. if it is closed loop i dont know why it would be running so lean, if you have some time maybe this weekend i could bring it up to dfw and we can mess with it a bit.

wnwright · 09-04-2006, 06:28 PM

That works for me. I'm not at home right now so I can't look at the bin, but I will later and get back to you.

Calum · 09-05-2006, 05:59 PM

I still own you an e-mail cutter, sorry.

cutter · 09-05-2006, 10:32 PM

calum if you just want to take a look at the files and give me some feedback that would be awesome. also why would my ecu not go to closed loop at idle?