Looks like i screwed for my turbo tune

[Dakines]

Thanks a lot of

[steve99]

Originally Posted by Dakines

I bought a turbo kit, and i try to tune it, but the afr allways thin as above 15.

i had scaled maf with YIKES CL-MAF Worksheet and scaled the map whith omni3bar sensor. maybe my tune methods is wrong.

so i wanna know which tables should i need do it , did anybody tell me.

attached the tuned rom file and stock rom file, link is lop data(fullgas and Cruise control )

http://datazap.me/u/q110287/11%E7%89...&data=1-12

Is your maf housing same size as the stock maf housing diameter. If you maf housing is a larger diameter then i think you maf scaling is incorrect. For bigger housing diameter you should have larger flow numbers for same volts.

standard injectors, is scaling correct

Check you direct injection open tine is not more than about 6m/s and your ports about 15m/s that about the limits you want with some in reserve.

maybe use the VGI maf scaling tool its much easier than YIKES

http://www.romraider.com/forum/viewtopic.php?t=10481





maybe also look at these tunes for early SBD turbo kits, think they were about 7 psi should give you some ideas.

just scroll to top of page for tunes


http://www.ft86club.com/forums/showthread.php?p=1855197

[Dakines]

Originally Posted by steve99

Is your maf housing same size as the stock maf housing diameter. If you maf housing is a larger diameter then i think you maf scaling is incorrect. For bigger housing diameter you should have larger flow numbers for same volts.

standard injectors, is scaling correct

Check you direct injection open tine is not more than about 6m/s and your ports about 15m/s that about the limits you want with some in reserve.

maybe use the VGI maf scaling tool its much easier than YIKES

http://www.romraider.com/forum/viewtopic.php?t=10481





maybe also look at these tunes for early SBD turbo kits, think they were about 7 psi should give you some ideas.

just scroll to top of page for tunes


http://www.ft86club.com/forums/showthread.php?p=1855197

I fixed the MAF scaling in CL afr is close 14.7 in CL，but my open loop allways lean，my command afr is above 12，but actual AFR is so lean, about 13.5-14.7. i scaled the maf but it doesn't work

If i want open loop to rich,how should i do?

[Kodename47]

Have you changed the MAF Limits and Load Limits?

[Tcoat]

"Looks like i screwed for my turbo tune"

[jasonojordan]

Originally Posted by Tcoat

"Looks like i screwed for my turbo tune"

Hey some people are willing to take tunes as payment apparently...

[jasonojordan]

Originally Posted by Tcoat

"Looks like i screwed for my turbo tune"

Hey some people are willing to take tunes as payment apparently...

[Dakines]

Originally Posted by Kodename47

Have you changed the MAF Limits and Load Limits?

yes i did~ attached the file

[Kodename47]

Originally Posted by Dakines

yes i did~ attached the file

No, you didn't.

[Dakines]

Originally Posted by Kodename47

No, you didn't.

the maf limits is 500g/s ,the engine load limits is 4.did it wrong?

[Kodename47]

Originally Posted by Dakines

the maf limits is 500g/s ,the engine load limits is 4.did it wrong?

You can see in the photos that your engine load limits 1 and 2 (probably A and B in Romraider) are still stock.

[steve99]

Originally Posted by Kodename47

You can see in the photos that your engine load limits 1 and 2 (probably A and B in Romraider) are still stock.

Or error in definition file for his rom calibration ?

[steve99]

Originally Posted by Kodename47

You can see in the photos that your engine load limits 1 and 2 (probably A and B in Romraider) are still stock.

Or error in definition file for his rom calibration ?

OP

you will need to change 4 limit tables
maf g\s limit to say 500 g\s
overall load limit to say 4
load limit per rpm tables A and B to use higher load limits at rpm

[Dakines]

Originally Posted by Kodename47

You can see in the photos that your engine load limits 1 and 2 (probably A and B in Romraider) are still stock.

i'm sure i did it.