• Mazda 6 MPS • UK member

[JUT]

I would be happy with +/- 4, you will end up chasing your tail trying to keep them near or at 0. It's your WOT MAF calibration that needs to be most accurate

[Steve @ VersaTune]

Looks good Kev, You're about 1.5% rich on the top end, but I wouldn't sweat that.

[kevstewart]

Hi guys, done more logging today, would be great if you guys could have a look at this.... its general performance preset, WOT, 3rd 2500 up to 6500 changing into 4th then into 5th

advice & comments welcome

still getting a touch of KR, maybe need to adjust timing to remove it?

[kevstewart]

Been a while since I have been on this forum - installing my meth kit this weekend all going well, current tune is running great... Targeting 2.35 load tapering down to 1.8 at redline with around 11 degree timing advance. Boost does not go above 20psi.
I'll post up some logs next time got the laptop out.
Current power is 301whp, 341lb/ft but looking forward to my next step, a potential 10% increase I believe but I'll just see how it goes... Run it on this tune for a week or two before looking to change things

[mituc]

I think you should be able to run more timing at that load around red line.

At what RPM you're hitting load 2.35 and what's the boost value there?

[kevstewart]

I have attatched a log from my current tune, tried to attatch my tune also but could not get it to work.

log shows the odd bit of knock, some logs its there, others its gone, not consistent and i can do 5th gear logs with zero knock but shifting 4th to 5th maybe causes knock sensor to pick up.
read lex's guide on knock and i am not concerned.

your's or anyones thoughts would be welcome.

[mituc]

You need richer AFR's up top if you're on pump gas, drop your desired lambda by 0.1 from 5500rpm up and see if that knock goes away.
The timing values look about right and I wouldn't change them or the ECT/BAT timing compensation table values. Not at this point at least, only if that knock will not diminish or go away entirely after the target lambda changes.

[kevstewart]

I'm still clueless at the actual tuning but like taking logs / checking them over...
I've tried a few times to understand but I keep getting mixed up

[kevstewart]

My tuning results with meth injection compared to same mods no meth compared to no meth, no BNR1 or downpipe.

[kevstewart]

my latest log attatched